September Weather in Seidu, Sierra Leone

Last updated: August 31, 2025

In September, the average temperature in Seidu, Sierra Leone hovers around 24°C (75°F), with a minimum of 19°C (66°F) and a maximum reaching 32°C (90°F). This period experiences substantial rainfall, totaling 390 mm (15.3 in) over 27 days, alongside an average humidity of 92%. Stay prepared for a tropical climate!

September Temperature in Seidu

In September in Seidu, the average temperature is 24°C (75°F). Maximums can reach 32°C (90°F), while minimums can drop to as low as 19°C (66°F). This pleasant climate makes it an ideal time for travelers to explore and enjoy outdoor activities.

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

The chart illustrates September temperature patterns in Seidu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Seidu, September typically has an average temperature of 24°C (75°F), with highs reaching up to 32°C (90°F) and lows dropping to around 19°C (66°F).

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

September Precipitation in Seidu

In Seidu in September, the total precipitation amount is 390 mm (15.3 in) spread out over 27 days.

September Precipitation Trends in Seidu

The chart displays monthly precipitation patterns in Seidu, 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 Seidu, September typically receives around 390 mm (15.3 inches) of precipitation spread over approximately 27 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 Seidu

In Seidu in September humidity is 92%. With an average temperature of 24°C (75°F), this humidity feels like a warm blanket enveloping you, making travel sticky and uncomfortable, and each step feels heavier as the air clings to your skin.

September Average Humidity in Seidu

This chart illustrates the average monthly humidity levels in Seidu, 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 Seidu is approximately 92%, 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 Seidu

In Seidu in September, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in Seidu, you can check here.

Maximum UV Index Levels in Seidu for September

The chart shows the monthly maximum UV Index (UVI) for Seidu 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 Seidu typically reaches 14, which falls under the extreme exposure category.

Data source: Seidu 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 Seidu Compares to Other Months

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

This table compares monthly weather conditions in Seidu, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	26°C (79°F)	2 mm (0.1 inches)	51%	extreme
February Weather	28°C (82°F)	17 mm (0.7 inches)	62%	extreme
March Weather	28°C (82°F)	68 mm (2.7 inches)	68%	extreme
April Weather	27°C (81°F)	107 mm (4.2 inches)	78%	extreme
May Weather	26°C (79°F)	194 mm (7.6 inches)	82%	extreme
June Weather	24°C (76°F)	256 mm (10.1 inches)	90%	extreme
July Weather	23°C (74°F)	371 mm (14.6 inches)	89%	extreme
August Weather	23°C (74°F)	399 mm (15.7 inches)	93%	extreme
September Weather	24°C (75°F)	390 mm (15.3 inches)	92%	extreme
October Weather	24°C (76°F)	276 mm (10.9 inches)	90%	extreme
November Weather	25°C (77°F)	104 mm (4.1 inches)	82%	extreme
December Weather	25°C (78°F)	8 mm (0.3 inches)	65%	very high