Do you need to know, when is the best time to go to South Sudan? Then you should take a look here, what weather you can expect there during the year.
The climate of South Sudan is hot. You can expect seasonal rainfall. It is heaviest in upland areas of the south and is smaller when you ho to the north. The Imatong Mountains have an equatorial climate, there are dense montane forests.
When speaking about the usual weather in this state, the information is relevant for example for these popular places: Bahr el Ghazal, Equatoria, Greater Upper Nile, Juba, Malakal, Nimule, Nimule National Park, Rumbek, Wau, Yei.
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 38.2 ℃ (100.76 ℉). The average minimum temperature in this month is 22.2 ℃ (71.96 ℉). The coldest month here is August, the average maximum temperature is 31 ℃ (87.8 ℉). The average minimum temperature in this month is 21.4 ℃ (70.52 ℉). The most rainy month here is July, the average number of rainy days is 13.2. The least rainy month here is January, the average number of rainy days is 1.4. 
When travelling to some places in South Sudan, always consider the altitude of the the place as well. The highest point here is Kinyeti (3187 m) and the lowest point is White Nile (381 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 South Sudan in January is this: The average highest temperature in South Sudan in January is 37.2 ℃ (98.96 ℉). The average lowest temperature is 19.9 ℃ (67.82 ℉). At the beginning of January you can expect lower temperatures, the average highest temperature is around 36.25 ℃ (97.25 ℉). At the end of January you can expect higher temperatures, the average highest temperature is around 37.7 ℃ (99.86 ℉). The average number of rainy days in January is 1.4. The average rainfall is 5.1 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 11:50 (hours and minutes), in the middle of the month 11:52 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 South Sudan in February is this: The average highest temperature in South Sudan in February is 38.2 ℃ (100.76 ℉). The average lowest temperature is 22.2 ℃ (71.96 ℉). At the beginning of February you can expect lower temperatures, the average highest temperature is around 37.7 ℃ (99.86 ℉). At the end of February you can expect lower temperatures, the average highest temperature is around 37.7 ℃ (99.86 ℉). The average number of rainy days in February is 2. The average rainfall is 11.2 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 11:54 (hours and minutes), in the middle of the month 11:57 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 South Sudan in March is this: The average highest temperature in South Sudan in March is 37.2 ℃ (98.96 ℉). The average lowest temperature is 23.3 ℃ (73.94 ℉). At the beginning of March you can expect higher temperatures, the average highest temperature is around 37.7 ℃ (99.86 ℉). At the end of March you can expect lower temperatures, the average highest temperature is around 36.45 ℃ (97.61 ℉). The average number of rainy days in March is 6.4. The average rainfall is 37.2 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 12:05 and at the end of the month 12:09.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 South Sudan in April is this: The average highest temperature in South Sudan in April is 35.7 ℃ (96.26 ℉). The average lowest temperature is 23.3 ℃ (73.94 ℉). At the beginning of April you can expect higher temperatures, the average highest temperature is around 36.45 ℃ (97.61 ℉). At the end of April you can expect lower temperatures, the average highest temperature is around 35.1 ℃ (95.18 ℉). The average number of rainy days in April is 11.4. The average rainfall is 114 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 12:13 and at the end of the month 12:17.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 South Sudan in May is this: The average highest temperature in South Sudan in May is 34.5 ℃ (94.1 ℉). 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 35.1 ℃ (95.18 ℉). At the end of May you can expect lower temperatures, the average highest temperature is around 33.3 ℃ (91.94 ℉). The average number of rainy days in May is 12.5. The average rainfall is 130 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 12:17 (hours and minutes), in the middle of the month 12:20 and at the end of the month 12:22.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 South Sudan in June is this: The average highest temperature in South Sudan in June is 32.1 ℃ (89.78 ℉). The average lowest temperature is 22.5 ℃ (72.5 ℉). At the beginning of June you can expect higher temperatures, the average highest temperature is around 33.3 ℃ (91.94 ℉). At the end of June you can expect lower temperatures, the average highest temperature is around 32 ℃ (89.6 ℉). The average number of rainy days in June is 10.2. The average rainfall is 117.2 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 12:22 (hours and minutes), in the middle of the month 12:24 and at the end of the month 12:24.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 South Sudan in July is this: The average highest temperature in South Sudan in July is 31.9 ℃ (89.42 ℉). The average lowest temperature is 21.8 ℃ (71.24 ℉). At the beginning of July you can expect higher temperatures, the average highest temperature is around 32 ℃ (89.6 ℉). At the end of July you can expect lower temperatures, the average highest temperature is around 31.45 ℃ (88.61 ℉). The average number of rainy days in July is 13.2. The average rainfall is 144.8 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 12:24 (hours and minutes), in the middle of the month 12:22 and at the end of the month 12:20.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 South Sudan in August is this: The average highest temperature in South Sudan in August is 31 ℃ (87.8 ℉). The average lowest temperature is 21.4 ℃ (70.52 ℉). At the beginning of August you can expect higher temperatures, the average highest temperature is around 31.45 ℃ (88.61 ℉). At the end of August you can expect higher temperatures, the average highest temperature is around 31.8 ℃ (89.24 ℉). The average number of rainy days in August is 11.7. The average rainfall is 129.9 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 12:20 (hours and minutes), in the middle of the month 12:17 and at the end of the month 12:13.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 South Sudan in September is this: The average highest temperature in South Sudan in September is 32.6 ℃ (90.68 ℉). The average lowest temperature is 21.3 ℃ (70.34 ℉). At the beginning of September you can expect lower temperatures, the average highest temperature is around 31.8 ℃ (89.24 ℉). At the end of September you can expect higher temperatures, the average highest temperature is around 33.5 ℃ (92.3 ℉). The average number of rainy days in September is 8.5. The average rainfall is 101.4 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 12:13 (hours and minutes), in the middle of the month 12:09 and at the end of the month 12:05.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 South Sudan in October is this: The average highest temperature in South Sudan in October is 34.4 ℃ (93.92 ℉). The average lowest temperature is 21.9 ℃ (71.42 ℉). At the beginning of October you can expect lower temperatures, the average highest temperature is around 33.5 ℃ (92.3 ℉). At the end of October you can expect higher temperatures, the average highest temperature is around 34.7 ℃ (94.46 ℉). The average number of rainy days in October is 10.1. The average rainfall is 113.4 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 12:05 (hours and minutes), in the middle of the month 12:01 and at the end of the month 11:57.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 South Sudan in November is this: The average highest temperature in South Sudan in November is 35 ℃ (95 ℉). The average lowest temperature is 20.7 ℃ (69.26 ℉). At the beginning of November you can expect lower temperatures, the average highest temperature is around 34.7 ℃ (94.46 ℉). At the end of November you can expect higher temperatures, the average highest temperature is around 35.15 ℃ (95.27 ℉). The average number of rainy days in November is 6.6. The average rainfall is 44 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 11:57 (hours and minutes), in the middle of the month 11:54 and at the end of the month 11:52.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 South Sudan in December is this: The average highest temperature in South Sudan in December is 35.3 ℃ (95.54 ℉). The average lowest temperature is 20.6 ℃ (69.08 ℉). At the beginning of December you can expect lower temperatures, the average highest temperature is around 35.15 ℃ (95.27 ℉). At the end of December you can expect higher temperatures, the average highest temperature is around 36.25 ℃ (97.25 ℉). The average number of rainy days in December is 1.9. The average rainfall is 8.3 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 11:52 (hours and minutes), in the middle of the month 11:50 and at the end of the month 11:50.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.| Malakal | temperature: - | highest temperature: 35.1 ℃ (95.18 ℉) | lowest temperature: 18.6 ℃ (65.48 ℉) | rainfall: 0mm | rainy days: 0 |
| Juba | temperature: - | highest temperature: 35.3 ℃ (95.54 ℉) | lowest temperature: 20.6 ℃ (69.08 ℉) | rainfall: 8.3mm | rainy days: 1.9 |