September Weather in Sumbuya, Sierra Leone

Last updated: August 31, 2025

In Sumbuya, Sierra Leone, the average temperature in September hovers around 25°C (77°F), offering a comfortable climate for outdoor activities. Expect a minimum of 22°C (71°F) and a maximum of 33°C (91°F), perfect for those who enjoy warm weather. However, be prepared for significant precipitation, with an average of 651 mm (25.6 in) spread over 29 days, and a high average humidity of 94%. This combination makes for a lush, green landscape, though it’s wise to pack your rain gear!

September Temperature in Sumbuya

In September in Sumbuya, the average temperature is 25°C (77°F). Maximums can reach 33°C (91°F) and minimums can be as low as 22°C (71°F). This pleasant climate makes Sumbuya an ideal destination for travelers looking to enjoy warm weather.

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

The chart illustrates September temperature patterns in Sumbuya, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sumbuya, September typically has an average temperature of 25°C (77°F), with highs reaching up to 33°C (91°F) and lows dropping to around 22°C (71°F).

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

September Precipitation in Sumbuya

In Sumbuya in September, the total precipitation amount is 651 mm (25.6 in) distributed over 29 days.

September Precipitation Trends in Sumbuya

The chart displays monthly precipitation patterns in Sumbuya, 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 Sumbuya, September typically receives around 651 mm (25.6 inches) of precipitation spread over approximately 29 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

September Humidity in Sumbuya

In Sumbuya in September, humidity is 94%. With an average temperature of 25°C (77°F), this humidity feels like a warm, heavy blanket enveloping you, making outdoor activities challenging and requiring frequent breaks to stay hydrated.

September Average Humidity in Sumbuya

This chart illustrates the average monthly humidity levels in Sumbuya, 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 Sumbuya is approximately 94%, 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 Sumbuya

In Sumbuya 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 Sumbuya.

Maximum UV Index Levels in Sumbuya for September

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

Data source: Sumbuya 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 Sumbuya Compares to Other Months

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

This table compares monthly weather conditions in Sumbuya, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	27°C (81°F)	20 mm (0.8 inches)	71%	very high
February Weather	28°C (82°F)	47 mm (1.9 inches)	76%	extreme
March Weather	28°C (83°F)	90 mm (3.5 inches)	79%	extreme
April Weather	27°C (81°F)	180 mm (7.1 inches)	83%	extreme
May Weather	26°C (80°F)	298 mm (11.7 inches)	84%	extreme
June Weather	25°C (78°F)	485 mm (19.1 inches)	88%	extreme
July Weather	25°C (77°F)	552 mm (21.7 inches)	89%	extreme
August Weather	25°C (77°F)	588 mm (23.1 inches)	93%	extreme
September Weather	25°C (77°F)	651 mm (25.6 inches)	94%	extreme
October Weather	25°C (78°F)	318 mm (12.5 inches)	91%	extreme
November Weather	26°C (79°F)	154 mm (6.1 inches)	83%	very high
December Weather	26°C (80°F)	56 mm (2.2 inches)	77%	very high