Do you need to know, when is the best time to go to East? Then you should take a look here, what weather you can expect there during the year.
East is part of India. India is a huge country, so the climate of India varies - from tropical monsoon in south to temperate in north. There is arid desert in the west, tundra and glaciers in the north, and humid tropical regions in the southwest. Four main seasons can be distinguished here: winter from December to February, summer from March to May, a monsoon rainy season from June to September, and a post-monsoon period from October to November.
When speaking about the usual weather in this area, the information is relevant for example for these popular places: Ajodhya Hill and Forest Reserve Area, Alipurduar, Amarkanan, Ambika Kalna, Ambikapur, Antila, Arang, Aritar, Asansol, Baharampur, Bakkhali, Bakreshwar, Balasore, Balurghat, Bandel, Bankura, Baranti, Bardhaman, Bargarh, Baripada, Barpali, Barrackpore, Bethuadahari, Betla National Park, Bhilai, Bhitarkanika National Park, Bhubaneswar, Bibhutibhushan Wildlife Sanctuary, Biharinath, Bilaspur, Birbhum Murshidabad, Bishnupur, Bokaro Steel City, Borigumma, Brahmapur, Chandernagore, Chandipur, Chhattisgarh, Chilika Lake, Coastal Odisha, Cooch Behar, Cuttack, Dakshineswar, Daltonganj, Darjeeling, Dello, Deoghar, Dhanbad, Dhenkanal, Diamond Harbour, Digha, Durg, Durgapur, Dzongu, East Sikkim, Fullara, Gadiara, Gangtok, Garh Panchakot, Geonkhali, Geyzing, Ghatshila, Giridih, Gompa Dara, Gopalpur, Gorumara National Park, Gour Pandua, Haldia, Hasimara, Hazaribag, Hazaribagh National Park, Hooghly, Howrah, Jagdalpur, Jaigaon, Jaldapara, Jaleswar, Jalpaiguri, Jamshedpur, Jhargram, Jharkhand, Jharsuguda, Jorepokhri, Jorethang, Junput, Kalimpong, Kalyani, Kanchrapara, Kankalitala, Kanker, Kendrapara, Kendubillo, Keonjhar, Khangchendzonga National Park, Kharagpur, Khejuri, Kolkata, Konark, Koraput, Korba, Krishnanagar, Kurseong, Kuruma, Labhpur, Lachen, Lachung, Lava, Lepchajagat, Loleygaon, Madhupur, Mainpat, Maithon, Malbazar, Malda, Malkangiri, Mandarmani, Mangan, Massanjore, Mayapur, Midnapore, Mirik, Mukutmanipur, Murshidabad, Nagarukhra, Nalhati, Namchi, Nanoor, North Bengal, North Chotanagpur, North Sikkim, Northwest Odisha, Odisha, Panitanki, Paradip, Parasnath Hills, Pelling, Puri, Purulia, Raichak, Raiganj, Raipur, Rampurhat, Ranaghat, Ranchi, Rarh, Ravangla, Rishop, Rourkela, Sagar Island, Sainthia, Sambalpur, Santhal Parganas, Santiniketan, Shankarpur, Shyamnagar, Sikkim, Siliguri, Simlipal National Park, South Chotanagpur, South Odisha, South Sikkim, Southeast Bengal, Southwest Bengal, Sunabeda, Sundarbans National Park, Surul, Susunia, Taki, Talasari, Tamluk, Tarapith, Thakurnagar, West Bengal, West Sikkim, Yuksom, Yumthang Valley.
Let's look now what weather you can expect in the area around Kolkata and in many other cities. The warmest month here is April, the average maximum temperature is 35.8 ℃ (96.44 ℉). The average minimum temperature in this month is 25 ℃ (77 ℉). The coldest month here is December, the average maximum temperature is 26.1 ℃ (78.98 ℉). The average minimum temperature in this month is 14.1 ℃ (57.38 ℉). 
When travelling around East, always consider the altitude of the the place as well. We should remind you, that the highest point in India is Kanchenjunga (8586 m) and the lowest point is Indian Ocean (0 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 East in January is this: The average highest temperature in East in January is 26.6 ℃ (79.88 ℉). The average lowest temperature is 14 ℃ (57.2 ℉). At the beginning of January you can expect lower temperatures, the average highest temperature is around 26.35 ℃ (79.43 ℉). At the end of January you can expect higher temperatures, the average highest temperature is around 27.55 ℃ (81.59 ℉). The average rainfall is 13.5 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 10:46 (hours and minutes), in the middle of the month 10:54 and at the end of the month 11:07.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 East in February is this: The average highest temperature in East in February is 28.5 ℃ (83.3 ℉). The average lowest temperature is 16.7 ℃ (62.06 ℉). At the beginning of February you can expect lower temperatures, the average highest temperature is around 27.55 ℃ (81.59 ℉). At the end of February you can expect higher temperatures, the average highest temperature is around 31.2 ℃ (88.16 ℉). The average rainfall is 25.5 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 11:07 (hours and minutes), in the middle of the month 11:23 and at the end of the month 11:42.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 East in March is this: The average highest temperature in East in March is 33.9 ℃ (93.02 ℉). The average lowest temperature is 21.5 ℃ (70.7 ℉). At the beginning of March you can expect lower temperatures, the average highest temperature is around 31.2 ℃ (88.16 ℉). At the end of March you can expect higher temperatures, the average highest temperature is around 34.85 ℃ (94.73 ℉). The average rainfall is 33.7 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 11:42 (hours and minutes), in the middle of the month 12:01 and at the end of the month 12:21.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 East in April is this: The average highest temperature in East in April is 35.8 ℃ (96.44 ℉). The average lowest temperature is 25 ℃ (77 ℉). At the beginning of April you can expect lower temperatures, the average highest temperature is around 34.85 ℃ (94.73 ℉). At the end of April you can expect lower temperatures, the average highest temperature is around 35.5 ℃ (95.9 ℉). The average rainfall is 50.6 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 12:21 (hours and minutes), in the middle of the month 12:40 and at the end of the month 12:58.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 East in May is this: The average highest temperature in East in May is 35.2 ℃ (95.36 ℉). The average lowest temperature is 26.5 ℃ (79.7 ℉). At the beginning of May you can expect higher temperatures, the average highest temperature is around 35.5 ℃ (95.9 ℉). At the end of May you can expect lower temperatures, the average highest temperature is around 34.45 ℃ (94.01 ℉). The average rainfall is 128.1 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 12:58 (hours and minutes), in the middle of the month 13:13 and at the end of the month 13:24.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 East in June is this: The average highest temperature in East in June is 33.7 ℃ (92.66 ℉). The average lowest temperature is 26.2 ℃ (79.16 ℉). At the beginning of June you can expect higher temperatures, the average highest temperature is around 34.45 ℃ (94.01 ℉). At the end of June you can expect lower temperatures, the average highest temperature is around 33.3 ℃ (91.94 ℉). The average rainfall is 285.2 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 13:24 (hours and minutes), in the middle of the month 13:30 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 East in July is this: The average highest temperature in East in July is 32.9 ℃ (91.22 ℉). The average lowest temperature is 26.9 ℃ (80.42 ℉). At the beginning of July you can expect higher temperatures, the average highest temperature is around 33.3 ℃ (91.94 ℉). At the end of July you can expect lower temperatures, the average highest temperature is around 32.4 ℃ (90.32 ℉). The average rainfall is 341.2 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 13:23 and at the end of the month 13:12.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 East in August is this: The average highest temperature in East in August is 31.9 ℃ (89.42 ℉). The average lowest temperature is 25.7 ℃ (78.26 ℉). At the beginning of August you can expect higher temperatures, the average highest temperature is around 32.4 ℃ (90.32 ℉). At the end of August you can expect lower temperatures, the average highest temperature is around 31.85 ℃ (89.33 ℉). The average rainfall is 326.2 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 13:12 (hours and minutes), in the middle of the month 12:57 and at the end of the month 12:39.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 East in September is this: The average highest temperature in East in September is 31.8 ℃ (89.24 ℉). The average lowest temperature is 26.6 ℃ (79.88 ℉). At the beginning of September you can expect higher temperatures, the average highest temperature is around 31.85 ℃ (89.33 ℉). At the end of September you can expect lower temperatures, the average highest temperature is around 31.75 ℃ (89.15 ℉). The average rainfall is 283.2 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 12:39 (hours and minutes), in the middle of the month 12:20 and at the end of the month 12:01.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 East in October is this: The average highest temperature in East in October is 31.7 ℃ (89.06 ℉). The average lowest temperature is 24.7 ℃ (76.46 ℉). At the beginning of October you can expect higher temperatures, the average highest temperature is around 31.75 ℃ (89.15 ℉). At the end of October you can expect lower temperatures, the average highest temperature is around 30.55 ℃ (86.99 ℉). The average rainfall is 140.2 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 12:01 (hours and minutes), in the middle of the month 11:42 and at the end of the month 11:23.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 East in November is this: The average highest temperature in East in November is 29.4 ℃ (84.92 ℉). The average lowest temperature is 18.9 ℃ (66.02 ℉). At the beginning of November you can expect higher temperatures, the average highest temperature is around 30.55 ℃ (86.99 ℉). At the end of November you can expect lower temperatures, the average highest temperature is around 27.75 ℃ (81.95 ℉). The average rainfall is 24.1 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 11:23 (hours and minutes), in the middle of the month 11:07 and at the end of the month 10:54.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 East in December is this: The average highest temperature in East in December is 26.1 ℃ (78.98 ℉). The average lowest temperature is 14.1 ℃ (57.38 ℉). At the beginning of December you can expect higher temperatures, the average highest temperature is around 27.75 ℃ (81.95 ℉). At the end of December you can expect higher temperatures, the average highest temperature is around 26.35 ℃ (79.43 ℉). The average rainfall is 6.3 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 10:54 (hours and minutes), in the middle of the month 10:46 and at the end of the month 10:45.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.| Kolkata | temperature: - | highest temperature: 26.1 ℃ (78.98 ℉) | lowest temperature: 14.1 ℃ (57.38 ℉) | rainfall: 6.3mm | rainy days: - |
| Ambikapur | temperature: - | highest temperature: 24 ℃ (75.2 ℉) | lowest temperature: 8.9 ℃ (48.02 ℉) | rainfall: 6.4mm | rainy days: - |
| Balasore | temperature: - | highest temperature: 27.5 ℃ (81.5 ℉) | lowest temperature: 13.8 ℃ (56.84 ℉) | rainfall: 6.6mm | rainy days: - |
| Cooch Behar | temperature: - | highest temperature: 25.1 ℃ (77.18 ℉) | lowest temperature: 11.6 ℃ (52.88 ℉) | rainfall: 4mm | rainy days: - |
| Gangtok | temperature: - | highest temperature: 14.7 ℃ (58.46 ℉) | lowest temperature: 5.8 ℃ (42.44 ℉) | rainfall: 21.4mm | rainy days: - |
| Gopalpur | temperature: - | highest temperature: 28 ℃ (82.4 ℉) | lowest temperature: 17 ℃ (62.6 ℉) | rainfall: 11.3mm | rainy days: - |
| Jagdalpur | temperature: - | highest temperature: 27.7 ℃ (81.86 ℉) | lowest temperature: 11.2 ℃ (52.16 ℉) | rainfall: 7.7mm | rainy days: - |
| Jamshedpur | temperature: - | highest temperature: 26.3 ℃ (79.34 ℉) | lowest temperature: 11.8 ℃ (53.24 ℉) | rainfall: 6mm | rainy days: - |
| Jharsuguda | temperature: - | highest temperature: 27.9 ℃ (82.22 ℉) | lowest temperature: 12.1 ℃ (53.78 ℉) | rainfall: 7.8mm | rainy days: - |
| Malda | temperature: - | highest temperature: 25.2 ℃ (77.36 ℉) | lowest temperature: 13.1 ℃ (55.58 ℉) | rainfall: 4.4mm | rainy days: - |
| Raipur | temperature: - | highest temperature: 27.2 ℃ (80.96 ℉) | lowest temperature: 12.9 ℃ (55.22 ℉) | rainfall: 4.2mm | rainy days: - |
| Ranchi | temperature: - | highest temperature: 24 ℃ (75.2 ℉) | lowest temperature: 10.5 ℃ (50.9 ℉) | rainfall: 6.2mm | rainy days: - |