Do you need to know, when is the best time to go to Congo, Democratic Republic? Then you should take a look here, what weather you can expect there during the year.
The climate of Congo, Democratic Republic, is tropical. The weather is hot and humid in equatorial river basin, but it is cooler and drier in southern highlands. The weather is cooler and wetter in eastern highlands. When you are going north of Equator, there is wet season from April to October, and dry season from December to February. When you are going south of Equator, the wet season is from November to March, dry season from April to October.
When speaking about the usual weather in this state, the information is relevant for example for these popular places: Bukavu, Bunagana, Congo Basin, Garamba National Park, Gbadolite, Goma, Kahuzi Biéga National Park, Kalemie, Kasai, Katanga, Kinshasa, Kisangani, Kivu, Lubumbashi, Maiko National Park, Matadi, Okapi Wildlife Reserve, Salonga National Park, Virunga National Park, Western DRC, Zongo.
Let's look now what weather you can expect here. (Warning: As we don't have reliable data for this country, we use data from nearby locations for these statistics.) The warmest month here is August, the average maximum temperature is 26.9 ℃ (80.42 ℉). The average minimum temperature in this month is 14.6 ℃ (58.28 ℉). The coldest month here is May, the average maximum temperature is 25 ℃ (77 ℉). The average minimum temperature in this month is 16 ℃ (60.8 ℉). The most rainy month here is November, the average number of rainy days is 21.5. The least rainy month here is July, the average number of rainy days is 3.9. 
When travelling to some places in Congo, Democratic Republic, always consider the altitude of the the place as well. The highest point here is Pic Marguerite on Mont Ngaliema (Mount Stanley) (5110 m) and the lowest point is Atlantic 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 Congo, Democratic Republic in January is this: The average highest temperature in Congo, Democratic Republic in January is 25.6 ℃ (78.08 ℉). The average lowest temperature is 15.7 ℃ (60.26 ℉). At the beginning of January you can expect lower temperatures, the average highest temperature is around 25.5 ℃ (77.9 ℉). At the end of January you can expect lower temperatures, the average highest temperature is around 25.6 ℃ (78.08 ℉). The average number of rainy days in January is 16.1. The average rainfall is 83.7 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 12:12 (hours and minutes), in the middle of the month 12:12 and at the end of the month 12:11.This data is approximate because we do not have exact data for this country. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.Typical (usual) weather in Congo, Democratic Republic in February is this: The average highest temperature in Congo, Democratic Republic in February is 25.6 ℃ (78.08 ℉). The average lowest temperature is 15.7 ℃ (60.26 ℉). At the beginning of February you can expect lower temperatures, the average highest temperature is around 25.6 ℃ (78.08 ℉). At the end of February you can expect higher temperatures, the average highest temperature is around 26 ℃ (78.8 ℉). The average number of rainy days in February is 16.3. The average rainfall is 90.7 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 12:11 (hours and minutes), in the middle of the month 12:09 and at the end of the month 12:08.This data is approximate because we do not have exact data for this country. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.Typical (usual) weather in Congo, Democratic Republic in March is this: The average highest temperature in Congo, Democratic Republic in March is 26.4 ℃ (79.52 ℉). The average lowest temperature is 15.3 ℃ (59.54 ℉). At the beginning of March you can expect lower temperatures, the average highest temperature is around 26 ℃ (78.8 ℉). At the end of March you can expect lower temperatures, the average highest temperature is around 25.95 ℃ (78.71 ℉). The average number of rainy days in March is 19.1. The average rainfall is 128.4 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 12:08 (hours and minutes), in the middle of the month 12:07 and at the end of the month 12:05.This data is approximate because we do not have exact data for this country. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.Typical (usual) weather in Congo, Democratic Republic in April is this: The average highest temperature in Congo, Democratic Republic in April is 25.5 ℃ (77.9 ℉). The average lowest temperature is 15.5 ℃ (59.9 ℉). At the beginning of April you can expect higher temperatures, the average highest temperature is around 25.95 ℃ (78.71 ℉). At the end of April you can expect lower temperatures, the average highest temperature is around 25.25 ℃ (77.45 ℉). The average number of rainy days in April is 21. The average rainfall is 148.8 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 12:05 (hours and minutes), in the middle of the month 12:04 and at the end of the month 12:03.This data is approximate because we do not have exact data for this country. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.Typical (usual) weather in Congo, Democratic Republic in May is this: The average highest temperature in Congo, Democratic Republic in May is 25 ℃ (77 ℉). The average lowest temperature is 16 ℃ (60.8 ℉). At the beginning of May you can expect higher temperatures, the average highest temperature is around 25.25 ℃ (77.45 ℉). At the end of May you can expect higher temperatures, the average highest temperature is around 25.3 ℃ (77.54 ℉). The average number of rainy days in May is 15.8. The average rainfall is 96.9 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 12:03 (hours and minutes), in the middle of the month 12:02 and at the end of the month 12:01.This data is approximate because we do not have exact data for this country. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.Typical (usual) weather in Congo, Democratic Republic in June is this: The average highest temperature in Congo, Democratic Republic in June is 25.6 ℃ (78.08 ℉). The average lowest temperature is 14.7 ℃ (58.46 ℉). At the beginning of June you can expect lower temperatures, the average highest temperature is around 25.3 ℃ (77.54 ℉). At the end of June you can expect higher temperatures, the average highest temperature is around 25.85 ℃ (78.53 ℉). The average number of rainy days in June is 6.9. The average rainfall is 47.8 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 12:01 (hours and minutes), in the middle of the month 12:01 and at the end of the month 12:01.This data is approximate because we do not have exact data for this country. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.Typical (usual) weather in Congo, Democratic Republic in July is this: The average highest temperature in Congo, Democratic Republic in July is 26.1 ℃ (78.98 ℉). The average lowest temperature is 14.2 ℃ (57.56 ℉). At the beginning of July you can expect lower temperatures, the average highest temperature is around 25.85 ℃ (78.53 ℉). At the end of July you can expect higher temperatures, the average highest temperature is around 26.5 ℃ (79.7 ℉). The average number of rainy days in July is 3.9. The average rainfall is 21.9 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 12:01 (hours and minutes), in the middle of the month 12:01 and at the end of the month 12:02.This data is approximate because we do not have exact data for this country. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.Typical (usual) weather in Congo, Democratic Republic in August is this: The average highest temperature in Congo, Democratic Republic in August is 26.9 ℃ (80.42 ℉). The average lowest temperature is 14.6 ℃ (58.28 ℉). At the beginning of August you can expect lower temperatures, the average highest temperature is around 26.5 ℃ (79.7 ℉). At the end of August you can expect lower temperatures, the average highest temperature is around 26.6 ℃ (79.88 ℉). The average number of rainy days in August is 8.9. The average rainfall is 70.9 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 12:02 (hours and minutes), in the middle of the month 12:03 and at the end of the month 12:04.This data is approximate because we do not have exact data for this country. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.Typical (usual) weather in Congo, Democratic Republic in September is this: The average highest temperature in Congo, Democratic Republic in September is 26.3 ℃ (79.34 ℉). The average lowest temperature is 14.9 ℃ (58.82 ℉). At the beginning of September you can expect higher temperatures, the average highest temperature is around 26.6 ℃ (79.88 ℉). At the end of September you can expect lower temperatures, the average highest temperature is around 25.85 ℃ (78.53 ℉). The average number of rainy days in September is 14.7. The average rainfall is 111.5 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 12:04 (hours and minutes), in the middle of the month 12:05 and at the end of the month 12:07.This data is approximate because we do not have exact data for this country. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.Typical (usual) weather in Congo, Democratic Republic in October is this: The average highest temperature in Congo, Democratic Republic in October is 25.4 ℃ (77.72 ℉). The average lowest temperature is 14.9 ℃ (58.82 ℉). At the beginning of October you can expect higher temperatures, the average highest temperature is around 25.85 ℃ (78.53 ℉). At the end of October you can expect higher temperatures, the average highest temperature is around 25.6 ℃ (78.08 ℉). The average number of rainy days in October is 19.9. The average rainfall is 134.3 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 12:07 (hours and minutes), in the middle of the month 12:08 and at the end of the month 12:09.This data is approximate because we do not have exact data for this country. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.Typical (usual) weather in Congo, Democratic Republic in November is this: The average highest temperature in Congo, Democratic Republic in November is 25.8 ℃ (78.44 ℉). The average lowest temperature is 14.8 ℃ (58.64 ℉). At the beginning of November you can expect lower temperatures, the average highest temperature is around 25.6 ℃ (78.08 ℉). At the end of November you can expect lower temperatures, the average highest temperature is around 25.6 ℃ (78.08 ℉). The average number of rainy days in November is 21.5. The average rainfall is 138.7 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 12:09 (hours and minutes), in the middle of the month 12:11 and at the end of the month 12:12.This data is approximate because we do not have exact data for this country. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.Typical (usual) weather in Congo, Democratic Republic in December is this: The average highest temperature in Congo, Democratic Republic in December is 25.4 ℃ (77.72 ℉). The average lowest temperature is 14.9 ℃ (58.82 ℉). At the beginning of December you can expect higher temperatures, the average highest temperature is around 25.6 ℃ (78.08 ℉). At the end of December you can expect higher temperatures, the average highest temperature is around 25.5 ℃ (77.9 ℉). The average number of rainy days in December is 17.6. The average rainfall is 92.7 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 12:12 (hours and minutes), in the middle of the month 12:12 and at the end of the month 12:13.This data is approximate because we do not have exact data for this country. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.