December Weather in Yei, South Sudan

Last updated: August 31, 2025

In December, the average temperature in Yei, South Sudan hovers around 26°C (79°F), providing a comfortable climate for outdoor activities. Expect minimum temperatures to dip to 18°C (66°F) and peak at a warm 34°C (94°F). With an average precipitation of 20 mm (0.8 in) spread across 3 days and a humidity level of 80%, it's advisable to stay hydrated and prepare for some scattered showers during your stay!

December Temperature in Yei

In December, in Yei, the average temperature is 26°C (79°F). Maximums can reach 34°C (94°F), while minimums can drop to as low as 18°C (66°F). This pleasant climate makes Yei an ideal destination for travelers seeking warm weather and outdoor adventures.

December Weather in Yei: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Yei, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Yei, December typically has an average temperature of 26°C (79°F), with highs reaching up to 34°C (94°F) and lows dropping to around 18°C (66°F).

Data source: Temperature data for Yei generated using information from the Copernicus Climate Change Service.

December Precipitation in Yei

In Yei in December, the precipitation amount is 20 mm (0.8 in) accumulated over a period of 3 days.

December Precipitation Trends in Yei

The chart displays monthly precipitation patterns in Yei, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Yei, December typically receives around 20 mm (0.8 inches) of precipitation spread over approximately 3 days.

Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

December Humidity in Yei

In Yei in December humidity is 80%. With an average temperature of 26°C (79°F), this humidity feels like a heavy blanket, making outdoor activities feel sticky and exhausting, potentially dampening the travel experience and necessitating frequent breaks to cool down and hydrate.

December Average Humidity in Yei

This chart illustrates the average monthly humidity levels in Yei, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Yei is approximately 80%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Yei

In Yei in December, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Yei.

Maximum UV Index Levels in Yei for December

The chart shows the monthly maximum UV Index (UVI) for Yei in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In December, the maximum UV index in Yei typically reaches 11, which falls under the extreme exposure category.

Data source: Yei December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How December Weather in Yei Compares to Other Months

Weather in Yei varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Yei, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Yei, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	27°C (81°F)	2 mm (0.1 inches)	47%	extreme
February Weather	28°C (83°F)	13 mm (0.5 inches)	33%	extreme
March Weather	27°C (81°F)	53 mm (2.1 inches)	33%	extreme
April Weather	26°C (79°F)	111 mm (4.4 inches)	54%	extreme
May Weather	24°C (76°F)	145 mm (5.7 inches)	77%	extreme
June Weather	23°C (75°F)	130 mm (5.1 inches)	75%	extreme
July Weather	23°C (73°F)	167 mm (6.6 inches)	77%	extreme
August Weather	23°C (73°F)	183 mm (7.2 inches)	79%	extreme
September Weather	23°C (74°F)	218 mm (8.6 inches)	84%	extreme
October Weather	23°C (74°F)	231 mm (9.1 inches)	89%	extreme
November Weather	25°C (76°F)	71 mm (2.8 inches)	88%	extreme
December Weather	26°C (79°F)	20 mm (0.8 inches)	80%	extreme