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September Weather in Bumbuna, Sierra Leone

Last updated: August 31, 2025

In September, the average temperature in Bumbuna, Sierra Leone is a pleasant 24°C (76°F). Expect minimums around 20°C (69°F) and maximums soaring up to 33°C (91°F). However, be prepared for wet conditions, as precipitation averages 500 mm (19.7 in) over 28 days with an average humidity of a high 92%.

September Temperature in Bumbuna

In September in Bumbuna, the average temperature is 24°C (76°F), with maximums reaching 33°C (91°F) and minimums dropping to 20°C (69°F). This pleasant climate makes it an ideal time for outdoor adventures and sightseeing.

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

The chart illustrates September temperature patterns in Bumbuna, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bumbuna, September typically has an average temperature of 24°C (76°F), with highs reaching up to 33°C (91°F) and lows dropping to around 20°C (69°F).
JanFebMarAprMayJunJulAugSepOctNovDec818384828077757576777879
Data source: Temperature data for Bumbuna generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Bumbuna

In Bumbuna in September, the precipitation amount is 500 mm (19.7 in) during a period of 28 days.

September Precipitation Trends in Bumbuna

The chart displays monthly precipitation patterns in Bumbuna, 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 Bumbuna, September typically receives around 500 mm (19.7 inches) of precipitation spread over approximately 28 days.
JanFebMarAprMayJunJulAugSepOctNovDec114398518835251357350038516514
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Bumbuna

In Bumbuna in September humidity is 92%. With average temperature 24°C (76°F), this humidity feels like a wall of heat that envelops you, making every step feel heavy and sweat trickle relentlessly down your back, turning what should be a pleasant stroll into a sticky challenge for any traveler.

September Average Humidity in Bumbuna

This chart illustrates the average monthly humidity levels in Bumbuna, 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 Bumbuna is approximately 92%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec52%62%68%78%82%90%89%93%92%90%82%65%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Bumbuna

In Bumbuna 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 Bumbuna, you can check here.

Maximum UV Index Levels in Bumbuna for September

The chart shows the monthly maximum UV Index (UVI) for Bumbuna 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 Bumbuna typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec111112131313131314121010
Data source: Bumbuna 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 Bumbuna Compares to Other Months

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

This table compares monthly weather conditions in Bumbuna, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather27°C (81°F)1 mm (0.1 inches)51%extreme
February Weather28°C (83°F)14 mm (0.5 inches)62%extreme
March Weather29°C (84°F)39 mm (1.6 inches)68%extreme
April Weather28°C (83°F)85 mm (3.3 inches)78%extreme
May Weather27°C (80°F)188 mm (7.4 inches)82%extreme
June Weather25°C (77°F)352 mm (13.9 inches)90%extreme
July Weather24°C (75°F)513 mm (20.2 inches)89%extreme
August Weather24°C (75°F)573 mm (22.6 inches)93%extreme
September Weather24°C (76°F)500 mm (19.7 inches)92%extreme
October Weather25°C (77°F)384 mm (15.1 inches)90%extreme
November Weather25°C (78°F)165 mm (6.5 inches)82%very high
December Weather26°C (79°F)13 mm (0.5 inches)65%very high

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