September Weather in Juba, South Sudan

Last updated: August 31, 2025

In September, the average temperature in Juba, South Sudan is 26°C (79°F), with minima dropping to 21°C (70°F) and soaring up to 37°C (100°F). Expect 122 mm (4.8 in) of precipitation spread over 19 days, accompanied by a notably high average humidity of 87%. Be prepared for a tropical experience!

September Temperature in Juba

In September in Juba, the average temperature hovers around 26°C (79°F), with maximums soaring to 37°C (100°F) and minimums dipping to as low as 21°C (70°F). This pleasant climate makes Juba an ideal destination for travelers seeking warm weather and outdoor adventures.

September Weather in Juba: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Juba, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Juba, September typically has an average temperature of 26°C (79°F), with highs reaching up to 37°C (100°F) and lows dropping to around 21°C (70°F).

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

September Precipitation in Juba

In Juba in September, the precipitation amount is 122 mm (4.8 in) over a span of 19 days.

September Precipitation Trends in Juba

The chart displays monthly precipitation patterns in Juba, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Juba, September typically receives around 122 mm (4.8 inches) of precipitation spread over approximately 19 days.

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

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Millimeters (mm) Inches (in)

September Humidity in Juba

In Juba in September, humidity is 87%. With an average temperature of 26°C (79°F), this humidity feels like walking through a warm, thick blanket, making it essential to stay hydrated and take frequent breaks while exploring.

September Average Humidity in Juba

This chart illustrates the average monthly humidity levels in Juba, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Juba is approximately 87%, offering insight into how humid the weather typically is during this month.

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

September UV Index in Juba

In Juba in September, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Juba.

Maximum UV Index Levels in Juba for September

The chart shows the monthly maximum UV Index (UVI) for Juba in September, 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 September, the maximum UV index in Juba typically reaches 13, which falls under the extreme exposure category.

Data source: Juba September 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 September Weather in Juba Compares to Other Months

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

This table compares monthly weather conditions in Juba, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	30°C (87°F)	2 mm (0.1 inches)	48%	extreme
February Weather	31°C (88°F)	4 mm (0.2 inches)	35%	extreme
March Weather	31°C (89°F)	17 mm (0.7 inches)	37%	extreme
April Weather	30°C (86°F)	73 mm (2.9 inches)	57%	extreme
May Weather	28°C (83°F)	128 mm (5.1 inches)	79%	extreme
June Weather	27°C (80°F)	135 mm (5.3 inches)	82%	extreme
July Weather	26°C (79°F)	121 mm (4.8 inches)	85%	extreme
August Weather	26°C (79°F)	125 mm (4.9 inches)	87%	extreme
September Weather	26°C (79°F)	122 mm (4.8 inches)	87%	extreme
October Weather	26°C (80°F)	150 mm (5.9 inches)	89%	extreme
November Weather	28°C (83°F)	37 mm (1.5 inches)	88%	extreme
December Weather	29°C (85°F)	6 mm (0.2 inches)	81%	very high