January weather forecast
Juba, South Sudan

Meandering River Nile through the city of Juba, in South Sudan
Meandering River Nile through the city of Juba, in South Sudan

Weather in January

January, like December, in Juba, South Sudan, is a very hot winter month, with average temperature fluctuating between 36.8°C (98.2°F) and 20.1°C (68.2°F).

Temperature

In Juba, the average high-temperature in January is relatively the same as in December - a still torrid 36.8°C (98.2°F). In Juba, South Sudan, in January, the average low-temperature is 20.1°C (68.2°F).

Heat index

The average heat index is evaluated at a scorching 42.4°C (108.3°F). Beware: Heat cramps and heat exhaustion are very likely. Heatstroke is imminent with prolonged activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'real feel', 'felt air temperature', or 'feels like', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. Additional factors like metabolic differences, pregnancy, differences in body mass, height, and shape, and activity influence one's weather impression. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

In January, the average relative humidity is 44%.

Rainfall

January is the month with the least rainfall in Juba. Rain falls for 1.4 days and accumulates 5.1mm (0.2") of precipitation.

Daylight

In January, the average length of the day in Juba, South Sudan, is 11.9h.

Sunshine

With an average of 9h of sunshine, January has the most sunshine of the year.

UV index

January through May, August through November, with an average maximum UV index of 12, are months with the highest UV index in Juba. A UV Index of 11, and more, symbolizes an extreme threat to health from the exposure to the Sun's UV radiation for average individuals.
Note: In January, the average maximum UV index of 12 translate into the following recommendations:
Practice all essential precautions. Protection against sun damage is crucial. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. A broad-spectrum sunscreen of SPF 30+ should be liberally applied and re-applied every two hours, and immediately after an outdoor workout or a swim.
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FAQ

What is the temperature in January in Juba?

The average high-temperature, in January, in Juba, is 36.8°C (98.2°F), while the average low-temperature is 20.1°C (68.2°F). In January, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 42.4°C (108.3°F).

What is the average humidity in January in Juba?

The average relative humidity in January in Juba, South Sudan, is 44%.

What is the driest month in Juba?

January is the month with the least rainfall in Juba, South Sudan. Rain falls for 1.4 days and accumulates 5.1mm (0.2") of precipitation.

How much does it rain in Juba in January?

In Juba, South Sudan, in January, during 1.4 rainfall days, 5.1mm (0.2") of precipitation is typically accumulated.

How many hours of daylight does Juba have in January?

In Juba, South Sudan, the average length of the day in January is 11.9h.

What month has the most sunshine in Juba?

January has the most sunshine of the year, with an average of 9h of sunshine.

How long on average sun shines in January in Juba?

The average sunshine in January is 9h.

When is the highest UV index in Juba?

January through May, August through November, with an average maximum UV index of 12, are months with the highest UV index in Juba, South Sudan.

What is the UV index reading in January in Juba?

In Juba, South Sudan, the average daily maximum UV index in January is 12. A UV Index value of 11, and more, symbolizes an ultimate hazard to health from unprotected exposure to the UV radiation.

Average temperature in January
Juba, South Sudan

Average temperature in January - Juba, South Sudan
  • Average high temperature in January: 36.8°C

The warmest month (with the highest average high temperature) is February (37.9°C).
The month with the lowest average high temperature is July (31.1°C).

  • Average low temperature in January: 20.1°C

The month with the highest average low temperature is March (23.6°C).
The coldest month (with the lowest average low temperature) is December (20°C).

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Average humidity in January
Juba, South Sudan

Average humidity in January - Juba, South Sudan
  • Average humidity in January: 44%

The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is February (42%).

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Average rainfall in January
Juba, South Sudan

Average rainfall in January - Juba, South Sudan
  • Average rainfall in January: 5.1mm

The wettest month (with the highest rainfall) is July (144.7mm).
The driest month (with the least rainfall) is January (5.1mm).

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Average rainfall days in January
Juba, South Sudan

Average rainfall days in January - Juba, South Sudan
  • Average rainfall days in January: 1.4 days

The month with the highest number of rainy days is July (13 days).
The month with the least rainy days is January (1.4 days).

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Average daylight in January /
Average sunshine in January
Juba, South Sudan

Average daylight in January / Average sunshine in January - Juba, South Sudan
  • Average daylight in January: 11.9h

Months with the longest days are June and July (Average daylight: 12.4h).
The month with the shortest days is December (Average daylight: 11.8h).

  • Average sunshine in January: 9h

The month with the most sunshine is January (Average sunshine: 9h).
The month with the least sunshine is July (Average sunshine: 5.9h).

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Average UV index in January
Juba, South Sudan

Average UV index in January - Juba, South Sudan
  • Average UV index in January: 12

Months with the highest UV index are January, February, March, April, May, August, September, October and November (UV index 12).
Months with the lowest UV index are June, July and December (UV index 11).

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