Do you need to know, when is the best time to go to Angola? Then you should take a look here, what weather you can expect there during the year.
The climate of Angola is semiarid in south and along coast to Luanda. North part of the country has cool, dry season from may to october, and hot, rainy season from November to April. The coastal part is tempered by the cool Benguela Current. The heaviest rainfalls occur in April, sometimes there are violent storms. The north and Cabinda have more rain throughout the year. Generally you can expect hot and dry summers and mild winters. 
When speaking about the usual weather in this state, the information is relevant for example for these popular places: Benguela, Cabinda, Central Angola, Eastern Angola, Great Escarpment, Greater Luanda, Huambo, Lobito, Luanda, M'banza Kongo, Mussulo Island, Northern Angola, Southwest Angola.
Let's look now what weather you can expect in the area around the capital and in many other cities. The warmest month here is February, the average maximum temperature is 31.2 ℃ (88.16 ℉). The average minimum temperature in this month is 24.9 ℃ (76.82 ℉). The coldest month here is July, the average maximum temperature is 24.3 ℃ (75.74 ℉). The average minimum temperature in this month is 18.5 ℃ (65.3 ℉). 
When travelling to some places in Angola, always consider the altitude of the the place as well. The highest point here is Moca (2620 m) and the lowest point is Atlantic Ocean (0 m). So there are quite big differences in altitudes in this country, so you can expect the weather to be different in different altitudes as well. 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 Angola in January is this: The average highest temperature in Angola in January is 29.6 ℃ (85.28 ℉). The average lowest temperature is 23.9 ℃ (75.02 ℉). At the beginning of January you can expect lower temperatures, the average highest temperature is around 29.1 ℃ (84.38 ℉). At the end of January you can expect higher temperatures, the average highest temperature is around 30.4 ℃ (86.72 ℉). 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 12:37 (hours and minutes), in the middle of the month 12:34 and at the end of the month 12:29.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 Angola in February is this: The average highest temperature in Angola in February is 31.2 ℃ (88.16 ℉). The average lowest temperature is 24.9 ℃ (76.82 ℉). At the beginning of February you can expect lower temperatures, the average highest temperature is around 30.4 ℃ (86.72 ℉). At the end of February you can expect lower temperatures, the average highest temperature is around 30.95 ℃ (87.71 ℉). 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 12:29 (hours and minutes), in the middle of the month 12:23 and at the end of the month 12:16.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 Angola in March is this: The average highest temperature in Angola in March is 30.7 ℃ (87.26 ℉). The average lowest temperature is 24.5 ℃ (76.1 ℉). At the beginning of March you can expect higher temperatures, the average highest temperature is around 30.95 ℃ (87.71 ℉). At the end of March you can expect lower temperatures, the average highest temperature is around 30.65 ℃ (87.17 ℉). 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 12:16 (hours and minutes), in the middle of the month 12:08 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 Angola in April is this: The average highest temperature in Angola in April is 30.6 ℃ (87.08 ℉). The average lowest temperature is 24.1 ℃ (75.38 ℉). At the beginning of April you can expect higher temperatures, the average highest temperature is around 30.65 ℃ (87.17 ℉). At the end of April you can expect lower temperatures, the average highest temperature is around 29.75 ℃ (85.55 ℉). 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 11:54 and at the end of the month 11:48.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 Angola in May is this: The average highest temperature in Angola in May is 28.9 ℃ (84.02 ℉). The average lowest temperature is 23.2 ℃ (73.76 ℉). At the beginning of May you can expect higher temperatures, the average highest temperature is around 29.75 ℃ (85.55 ℉). At the end of May you can expect lower temperatures, the average highest temperature is around 27.3 ℃ (81.14 ℉). 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 11:48 (hours and minutes), in the middle of the month 11:42 and at the end of the month 11:38.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 Angola in June is this: The average highest temperature in Angola in June is 25.7 ℃ (78.26 ℉). The average lowest temperature is 20.3 ℃ (68.54 ℉). At the beginning of June you can expect higher temperatures, the average highest temperature is around 27.3 ℃ (81.14 ℉). At the end of June you can expect lower temperatures, the average highest temperature is around 25 ℃ (77 ℉). 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 11:38 (hours and minutes), in the middle of the month 11:36 and at the end of the month 11:36.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 Angola in July is this: The average highest temperature in Angola in July is 24.3 ℃ (75.74 ℉). The average lowest temperature is 18.5 ℃ (65.3 ℉). At the beginning of July you can expect higher temperatures, the average highest temperature is around 25 ℃ (77 ℉). At the end of July you can expect higher temperatures, the average highest temperature is around 24.4 ℃ (75.92 ℉). 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 11:36 (hours and minutes), in the middle of the month 11:39 and at the end of the month 11:43.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 Angola in August is this: The average highest temperature in Angola in August is 24.5 ℃ (76.1 ℉). The average lowest temperature is 19.4 ℃ (66.92 ℉). At the beginning of August you can expect lower temperatures, the average highest temperature is around 24.4 ℃ (75.92 ℉). At the end of August you can expect higher temperatures, the average highest temperature is around 24.8 ℃ (76.64 ℉). 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 11:43 (hours and minutes), in the middle of the month 11:48 and at the end of the month 11:54.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 Angola in September is this: The average highest temperature in Angola in September is 25.1 ℃ (77.18 ℉). The average lowest temperature is 20.5 ℃ (68.9 ℉). At the beginning of September you can expect lower temperatures, the average highest temperature is around 24.8 ℃ (76.64 ℉). At the end of September you can expect higher temperatures, the average highest temperature is around 25.8 ℃ (78.44 ℉). 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 11:54 (hours and minutes), in the middle of the month 12:01 and at the end of the month 12:08.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 Angola in October is this: The average highest temperature in Angola in October is 26.5 ℃ (79.7 ℉). The average lowest temperature is 22.6 ℃ (72.68 ℉). At the beginning of October you can expect lower temperatures, the average highest temperature is around 25.8 ℃ (78.44 ℉). At the end of October you can expect higher temperatures, the average highest temperature is around 27.3 ℃ (81.14 ℉). 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 12:08 (hours and minutes), in the middle of the month 12:16 and at the end of the month 12:23.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 Angola in November is this: The average highest temperature in Angola in November is 28.1 ℃ (82.58 ℉). The average lowest temperature is 24 ℃ (75.2 ℉). At the beginning of November you can expect lower temperatures, the average highest temperature is around 27.3 ℃ (81.14 ℉). At the end of November you can expect higher temperatures, the average highest temperature is around 28.35 ℃ (83.03 ℉). 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 12:23 (hours and minutes), in the middle of the month 12:29 and at the end of the month 12:34.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 Angola in December is this: The average highest temperature in Angola in December is 28.6 ℃ (83.48 ℉). The average lowest temperature is 23.8 ℃ (74.84 ℉). At the beginning of December you can expect lower temperatures, the average highest temperature is around 28.35 ℃ (83.03 ℉). At the end of December you can expect higher temperatures, the average highest temperature is around 29.1 ℃ (84.38 ℉). 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 12:34 (hours and minutes), in the middle of the month 12:37 and at the end of the month 12:37.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.