Do you need to know, when is the best time to go to California? Then you should take a look here, what weather you can expect there during the year.
California is part of USA - United States of America. The climate of USA is very varied, as United States of America is a large country. The climate is mostly temperate, but tropical in Hawaii and Florida, and arctic in Alaska. This is not all. The climate is semiarid in the great plains west of the Mississippi River, and arid in the Great Basin of the southwest. You can expect low winter temperatures in the northwest, but they are sometimes moderated in January and February by warm winds. Winters in the south are warmer. Don? forget, that temperatures are usually significantly lower in mountains.
When speaking about the usual weather in this area, the information is relevant for example for these popular places: Adelanto, Agoura Hills, Alameda, Alameda County, Alamo, Albany, Albion, Alhambra, Aliso Viejo, Alpine County, Alturas, Amador City, Amador County, Amboy, American Canyon, Anaheim, Anaheim Hills, Anderson, Angeles National Forest, Angels Camp, Antelope, Antelope Valley, Antioch, Anza Borrego Desert State Park, Apple Valley, Aptos, Arcadia, Arcata, Armstrong Redwoods State Natural Reserve, Arnold, Arroyo Grande, Artesia, Atascadero, Atwater, Auburn, Avalon, Avila Beach, Baker, Bakersfield, Baldwin Park, Banning, Barstow, Bass Lake, Bay Area, Bay Point, Beach Cities, Bear Valley, Beaumont, Bellflower, Belmont, Benicia, Berkeley, Beverly Hills, Big Basin Redwoods State Park, Big Bear Lake, Big Bend, Big Pine, Big Sur, Bishop, Bliss State Park, Blue Lake, Blythe, Bodega Bay, Bolinas, Bombay Beach, Boonville, Borrego Springs, Boulder Creek, Brawley, Brea, Brentwood, Bridgeport, Brisbane, Buellton, Buena Park, Burbank, Burlingame, Burney, Butte County, Buttonwillow, Byron, Cachuma Lake Recreation Area, Calabasas, Calaveras County, Calexico, California City, California Wine Country, Calipatria, Calistoga, Callahan, Camarillo, Cambria, Campbell, Campo, Capitola, Carlsbad, Carmel, Carmel Valley, Carpinteria, Carrizo Plain National Monument, Carson, Castaic, Castro Valley, Catalina Island, Cathedral City, Cecilville, Central Coast, Ceres, Cerritos, Channel Islands, Channel Islands National Park, Chatsworth, Chester, Chico, Chino, Chino Hills, Chowchilla, Chula Vista, Citrus Heights, City of Commerce, Claremont, Clayton, Clearlake, Cleveland National Forest, Cloverdale, Clovis, Coachella, Coalinga, Coarsegold, Colma, Coloma, Colton, Columbia, Colusa County, Compton, Concord, Contra Costa County, Corning, Corona, Coronado, Costa Mesa, Cotati, Cottonwood, Coulterville, Covina, Crescent City, Culver City, Cupertino, Cypress, Daly City, Dana Point, Danville, Davis, Death Valley Junction, Death Valley National Park, Del Mar, Del Norte County, Del Valle Regional Park, Delano, Desert, Desert Hot Springs, Devils Postpile National Monument, Diamond Bar, Dinuba, Discovery Bay, Disneyland, Dixon, Dorris, Downey, Dublin, Dunsmuir, East Bay, East Palo Alto, Eastern Sierra, El Cajon, El Centro, El Cerrito, El Dorado County, El Dorado Hills, El Granada, El Monte, El Portal, El Segundo, El Verano, Elk Grove, Emerald Bay State Park, Emeryville, Encinitas, Escondido, Etna, Eureka, Exeter, Fairfax, Fairfield, Fall River Mills, Fallbrook, Felton, Ferndale, Fillmore, Firebaugh, Fish Camp, Folsom, Fontana, Forestville, Fort Bragg, Fort Ross, Fortuna, Foster City, Fountain Valley, Fremont, French Gulch, Fresno, Fresno County, Fullerton, Garberville, Garden Grove, Gardena, Gateway Cities, Gazelle, Geyserville, Gilroy, Glen Ellen, Glendale, Glenn County, Gold Country, Gold River, Goleta, Grass Valley, Groveland, Grover Beach, Guadalupe, Gualala, Guerneville, Gustine, Hacienda Heights, Half Moon Bay, Hanford, Hawthorne, Hayfork, Hayward, Healdsburg, Hemet, Henry W. Coe State Park, Hercules, Hermosa Beach, Hesperia, Hillsborough, Hilmar, Hollister, Hollywood, Homewood, Hornbrook, Humboldt County, Huntington Beach, Huntington Park, Idyllwild, Imperial, Imperial Beach, Imperial County, Incline Village, Independence, Indian Wells, Indio, Inglewood, Inland, Inland Cities, Inland Empire, Inyo County, Inyokern, Irvine, Isleton, Jackson, Jamestown, Jenner, Joshua Tree, Joshua Tree National Park, Julian, Junction City, Jurupa Valley, Keene, Kelseyville, Kenwood, Kern County, Kernville, Kettleman City, King City, Kings County, Kingsburg, Kirkwood, Klamath, Klamath River, La Cañada Flintridge, La Habra, La Mesa, La Mirada, La Quinta, La Verne, Lafayette, Laguna Beach, Laguna Hills, Laguna Niguel, Lake Arrowhead, Lake County, Lake Elsinore, Lake Forest, Lake Tahoe, Lakehead, Lakeport, Lakewood, Lancaster, Larkspur and Corte Madera, Lassen County, Lassen Volcanic National Park, Lathrop, Lava Beds National Monument, Lawndale, Lee Vining, Lemoore, Lick Observatory, Livermore, Lodi, Loma Linda, Lompoc, Lone Pine, Long Beach, Los Alamitos, Los Altos, Los Altos Hills, Los Angeles, Los Banos, Los Gatos, Los Olivos, Los Osos, Lost Hills, Loyalton, Lynwood, Macdoel, Mad River, Madera, Madera County, Magic Mountain, Malibu, Mammoth Lakes, Manhattan Beach, Manteca, Maricopa, Marin County, Marin Headlands, Marina, Marina del Rey, Mariposa, Mariposa County, Martinez, Marysville, McArthur, McClellan, McCloud, McFarland, McKinleyville, McKittrick, Mendocino, Mendocino County, Mendocino National Forest, Menlo Park, Merced, Merced County, Metro Area, Mi Wuk Village, Middletown, Mill Creek, Mill Valley, Millbrae, Millville, Milpitas, Mission Viejo, Modesto, Modoc County, Mojave, Mojave Desert, Mojave National Preserve, Mono County, Mono Lake, Monrovia, Monte Rio, Montecito, Monterey, Monterey Bay, Monterey County, Monterey Park, Montgomery Creek, Moraga, Moreno Valley, Morgan Hill, Morro Bay, Moss Beach, Moss Landing, Mount Diablo State Park, Mount Shasta, Mount Whitney, Mountain View, Murphys, Napa, Napa Valley, National City, Needles, Nevada City, Nevada County, Newark, Newport Beach, Niland, Nipomo, Norco, North Bay, North Coast, North County, North Highlands, North Hollywood, North Valley, Norwalk, Novato, Oakdale, Oakhurst, Oakland, Oakley, Oakville, Occidental, Oceano, Oceanside, Ojai, Olancha Cartago, Ontario, Orange, Orange County, Orinda, Oroville, Owens Valley, Oxnard, Pacific Grove, Pacific Palisades, Pacifica, Palm Desert, Palm Springs, Palmdale, Palo Alto, Palo Cedro, Palos Verdes, Parker Dam, Pasadena, Paso Robles, Patterson, Paynes Creek, Peninsula, Pescadero, Petaluma, Pico Rivera, Piedmont, Pinecrest, Pinnacles National Park, Pinole, Pismo Beach, Pittsburg, Pixley, Placentia, Placer County, Placerville, Playa del Rey, Pleasant Hill, Pleasanton, Plumas County, Plymouth, Point Arena, Point Reyes National Seashore, Pollock Pines, Pomona, Port Hueneme, Porterville, Portola Valley, Poway, Quincy, Ramona, Rancho Cordova, Rancho Cucamonga, Rancho Mirage, Red Bluff, Redding, Redlands, Redondo Beach, Redwood City, Redwood National Park, Reedley, Rialto, Richmond, Ridgecrest, Rio Vista, Ripon, Riverside, Riverside County, Rock Creek Lake, Rocklin, Rohnert Park, Rosamond, Rosemead, Roseville, Round Mountain, Rutherford, Sacramento, Sacramento County, Sacramento Valley, Salida, Salinas, Salton Sea, San Anselmo, San Benito County, San Bernardino, San Bernardino County, San Bruno, San Carlos, San Clemente, San Diego, San Diego County, San Dimas, San Fernando Valley, San Francisco, San Gabriel, San Gabriel Valley, San Joaquin County, San Joaquin Valley, San Jose, San Juan Bautista, San Juan Capistrano, San Leandro, San Luis Obispo, San Luis Obispo County, San Marcos, San Marino, San Mateo, San Miguel, San Pablo, San Pedro, San Rafael, San Ramon, San Simeon, Santa Ana, Santa Barbara, Santa Barbara County, Santa Clara, Santa Clara Valley, Santa Clarita, Santa Clarita Valley, Santa Cruz, Santa Cruz County, Santa Fe Springs, Santa Maria, Santa Monica, Santa Monica Mountains National Recreation Area, Santa Nella, Santa Paula, Santa Rosa, Santa Ynez, Saratoga, Sausalito, Scotia, Scotts Valley, Scuba diving in California, Sea Ranch, Seal Beach, Seaside, Sebastopol, Selma, Sequoia National Forest, Sequoia and Kings Canyon National Parks, Shasta Cascades, Shasta County, Shasta Lake, Shaver Lake, Sherman Oaks, Shingletown, Shoshone, Sierra City, Sierra County, Sierra Nevada, Silicon Valley, Simi Valley, Siskiyou County, Solana Beach, Solano County, Soledad, Solvang, Sonoma, Sonoma County, Sonoma Valley, Sonora, South Bay, South Lake Tahoe, South Pasadena, South San Francisco, South Valley, Southern California, Squaw Valley, St. Helena, Stanislaus County, Stanton, Stateline, Stinson Beach, Stockton, Studio City, Sugar Bowl, Sunnyvale, Sunol, Susanville, Sutter County, Sutter Creek, Taft, Tahoe City, Tahoe Vista, Tehachapi, Tehama County, Temecula, The Grapevine, Thousand Oaks, Three Rivers, Tiburon, Topanga, Torrance, Tracy, Tri Valley, Trinidad, Trinity County, Truckee, Tulare, Tulare County, Tuolumne County, Turlock, Tustin, Twain Harte, Twentynine Palms, Two Harbors, Ukiah, Union City, Universal City, Upland, Vacaville, Valencia, Vallejo, Van Nuys, Venice, Ventura, Ventura County, Victorville, Visalia, Vista, Volcano, Walnut Creek, Wasco, Watsonville, Weaverville, Weed, West Covina, West Hollywood, West Sacramento, Westchester, Westley, Westminster, Westside, White Mountains, Whittier, Williams, Willits, Willows, Windsor, Winters, Woodland, Woodside, Yolo County, Yorba Linda, Yosemite National Park, Yosemite West, Yountville, Yreka, Yuba City, Yuba County, Yucca Valley.
Let's look now what weather you can expect in the area around Los Angeles and in many other cities. The warmest month here is September, the average maximum temperature is 29.2 ℃ (84.56 ℉). The average minimum temperature in this month is 17.2 ℃ (62.96 ℉). The coldest month here is December, the average maximum temperature is 19.6 ℃ (67.28 ℉). The average minimum temperature in this month is 8.9 ℃ (48.02 ℉). The most rainy month here is February, the average number of rainy days is 6.4. The least rainy month here is July, the average number of rainy days is 0.3. 
When travelling around California, always consider the altitude of the the place as well. We should remind you, that the highest point in USA - United States of America is Denali (Mount McKinley) (6190 m) and the lowest point is Death Valley (-86 m). So there are huge differences in altitudes in this country and the weather is very different in them therefore. Keep in mind, that the temperature usually decreases by 1.2 - 1.9 ℃ (2.2 - 3.5 ℉) per 200 m (656 ft), depending on the other conditions. (And we should add, that in the very special condition named thermal inversion even the temperature may be higher in higher altitudes.)
Typical (usual) weather in California in January is this: The average highest temperature in California in January is 20.7 ℃ (69.26 ℉). The average lowest temperature is 8.8 ℃ (47.84 ℉). At the beginning of January you can expect lower temperatures, the average highest temperature is around 20.15 ℃ (68.27 ℉). At the end of January you can expect lower temperatures, the average highest temperature is around 20.45 ℃ (68.81 ℉). The average number of rainy days in January is 6.2. The average rainfall is 77.8 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 9:55 (hours and minutes), in the middle of the month 10:08 and at the end of the month 10:30.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.Typical (usual) weather in California in February is this: The average highest temperature in California in February is 20.2 ℃ (68.36 ℉). The average lowest temperature is 9.7 ℃ (49.46 ℉). At the beginning of February you can expect higher temperatures, the average highest temperature is around 20.45 ℃ (68.81 ℉). At the end of February you can expect higher temperatures, the average highest temperature is around 21 ℃ (69.8 ℉). The average number of rainy days in February is 6.4. The average rainfall is 96.1 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 10:30 (hours and minutes), in the middle of the month 10:57 and at the end of the month 11:27.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.Typical (usual) weather in California in March is this: The average highest temperature in California in March is 21.8 ℃ (71.24 ℉). The average lowest temperature is 11 ℃ (51.8 ℉). At the beginning of March you can expect lower temperatures, the average highest temperature is around 21 ℃ (69.8 ℉). At the end of March you can expect higher temperatures, the average highest temperature is around 22.25 ℃ (72.05 ℉). The average number of rainy days in March is 5.6. The average rainfall is 62.6 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 11:27 (hours and minutes), in the middle of the month 11:59 and at the end of the month 12:30.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.
Typical (usual) weather in California in April is this: The average highest temperature in California in April is 22.7 ℃ (72.86 ℉). The average lowest temperature is 12.3 ℃ (54.14 ℉). At the beginning of April you can expect lower temperatures, the average highest temperature is around 22.25 ℃ (72.05 ℉). At the end of April you can expect higher temperatures, the average highest temperature is around 23.2 ℃ (73.76 ℉). The average number of rainy days in April is 3.2. The average rainfall is 23.4 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 12:30 (hours and minutes), in the middle of the month 13:01 and at the end of the month 13:30.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.Typical (usual) weather in California in May is this: The average highest temperature in California in May is 23.7 ℃ (74.66 ℉). The average lowest temperature is 14 ℃ (57.2 ℉). At the beginning of May you can expect lower temperatures, the average highest temperature is around 23.2 ℃ (73.76 ℉). At the end of May you can expect higher temperatures, the average highest temperature is around 25.05 ℃ (77.09 ℉). The average number of rainy days in May is 1.3. The average rainfall is 6.6 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 13:30 (hours and minutes), in the middle of the month 13:55 and at the end of the month 14:13.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.Typical (usual) weather in California in June is this: The average highest temperature in California in June is 26.4 ℃ (79.52 ℉). The average lowest temperature is 15.5 ℃ (59.9 ℉). At the beginning of June you can expect lower temperatures, the average highest temperature is around 25.05 ℃ (77.09 ℉). At the end of June you can expect higher temperatures, the average highest temperature is around 27.35 ℃ (81.23 ℉). The average number of rainy days in June is 0.6. The average rainfall is 2.4 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 14:13 (hours and minutes), in the middle of the month 14:23 and at the end of the month 14:23.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.
Typical (usual) weather in California in July is this: The average highest temperature in California in July is 28.3 ℃ (82.94 ℉). The average lowest temperature is 17.9 ℃ (64.22 ℉). At the beginning of July you can expect lower temperatures, the average highest temperature is around 27.35 ℃ (81.23 ℉). At the end of July you can expect higher temperatures, the average highest temperature is around 28.45 ℃ (83.21 ℉). The average number of rainy days in July is 0.3. The average rainfall is 0.3 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 14:23 (hours and minutes), in the middle of the month 14:12 and at the end of the month 13:54.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.Typical (usual) weather in California in August is this: The average highest temperature in California in August is 28.6 ℃ (83.48 ℉). The average lowest temperature is 18.1 ℃ (64.58 ℉). At the beginning of August you can expect lower temperatures, the average highest temperature is around 28.45 ℃ (83.21 ℉). At the end of August you can expect higher temperatures, the average highest temperature is around 28.9 ℃ (84.02 ℉). The average number of rainy days in August is 0.3. The average rainfall is 1 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 13:54 (hours and minutes), in the middle of the month 13:29 and at the end of the month 13:00.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.Typical (usual) weather in California in September is this: The average highest temperature in California in September is 29.2 ℃ (84.56 ℉). The average lowest temperature is 17.2 ℃ (62.96 ℉). At the beginning of September you can expect lower temperatures, the average highest temperature is around 28.9 ℃ (84.02 ℉). At the end of September you can expect lower temperatures, the average highest temperature is around 27.4 ℃ (81.32 ℉). The average number of rainy days in September is 1. The average rainfall is 6.1 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 13:00 (hours and minutes), in the middle of the month 12:30 and at the end of the month 11:58.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.Typical (usual) weather in California in October is this: The average highest temperature in California in October is 25.6 ℃ (78.08 ℉). The average lowest temperature is 15.2 ℃ (59.36 ℉). At the beginning of October you can expect higher temperatures, the average highest temperature is around 27.4 ℃ (81.32 ℉). At the end of October you can expect lower temperatures, the average highest temperature is around 24.05 ℃ (75.29 ℉). The average number of rainy days in October is 2.5. The average rainfall is 16.4 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 11:58 (hours and minutes), in the middle of the month 11:27 and at the end of the month 10:57.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.Typical (usual) weather in California in November is this: The average highest temperature in California in November is 22.5 ℃ (72.5 ℉). The average lowest temperature is 11.3 ℃ (52.34 ℉). At the beginning of November you can expect higher temperatures, the average highest temperature is around 24.05 ℃ (75.29 ℉). At the end of November you can expect lower temperatures, the average highest temperature is around 21.05 ℃ (69.89 ℉). The average number of rainy days in November is 3.3. The average rainfall is 26.9 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 10:57 (hours and minutes), in the middle of the month 10:30 and at the end of the month 10:09.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.Typical (usual) weather in California in December is this: The average highest temperature in California in December is 19.6 ℃ (67.28 ℉). The average lowest temperature is 8.9 ℃ (48.02 ℉). At the beginning of December you can expect higher temperatures, the average highest temperature is around 21.05 ℃ (69.89 ℉). At the end of December you can expect higher temperatures, the average highest temperature is around 20.15 ℃ (68.27 ℉). The average number of rainy days in December is 5.3. The average rainfall is 59.5 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 10:09 (hours and minutes), in the middle of the month 9:56 and at the end of the month 9:53.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.| Los Angeles | temperature: - | highest temperature: 19.6 ℃ (67.28 ℉) | lowest temperature: 8.9 ℃ (48.02 ℉) | rainfall: 59.5mm | rainy days: 5.3 |
| San Francisco | temperature: - | highest temperature: 13.9 ℃ (57.02 ℉) | lowest temperature: 7.9 ℃ (46.22 ℉) | rainfall: 116.3mm | rainy days: 11.8 |
| Fresno | temperature: - | highest temperature: 13 ℃ (55.4 ℉) | lowest temperature: 3.5 ℃ (38.3 ℉) | rainfall: 45mm | rainy days: 7.6 |
| Sacramento | temperature: - | highest temperature: 12.2 ℃ (53.96 ℉) | lowest temperature: 3.8 ℃ (38.84 ℉) | rainfall: 81.2mm | rainy days: 10.1 |
| San Diego | temperature: - | highest temperature: 18.7 ℃ (65.66 ℉) | lowest temperature: 9.2 ℃ (48.56 ℉) | rainfall: 39.8mm | rainy days: 5.8 |
| San Jose | temperature: - | highest temperature: 16.7 ℃ (62.06 ℉) | lowest temperature: 6 ℃ (42.8 ℉) | rainfall: 53.9mm | rainy days: 11.4 |
| Napa | temperature: - | highest temperature: 13.3 ℃ (55.94 ℉) | lowest temperature: 2.4 ℃ (36.32 ℉) | rainfall: 95.3mm | rainy days: 12.4 |
| Palm Springs | temperature: - | highest temperature: 19.7 ℃ (67.46 ℉) | lowest temperature: 7.2 ℃ (44.96 ℉) | rainfall: 22mm | rainy days: - |