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September Weather in Koulamoutou, Gabon

Last updated: August 23, 2025

In September, the average temperature in Koulamoutou, Gabon hovers around 25°C (77°F), with a minimum of 20°C (69°F) and a maximum reaching up to 32°C (90°F). Prepare for potential rain, as 118 mm (4.6 in) of precipitation may fall over 24 days. With an average humidity of 91%, expect a warm and humid atmosphere throughout the month.

September Temperature in Koulamoutou

In September in Koulamoutou, the average temperature is 25°C (77°F). Maximum temperatures can reach 32°C (90°F), while minimum temperatures can drop to as low as 20°C (69°F). This pleasant climate makes Koulamoutou an ideal destination for travelers seeking warm weather and outdoor activities.

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

The chart illustrates September temperature patterns in Koulamoutou, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Koulamoutou, September typically has an average temperature of 25°C (77°F), with highs reaching up to 32°C (90°F) and lows dropping to around 20°C (69°F).
JanFebMarAprMayJunJulAugSepOctNovDec787979797877757677777777
Data source: Temperature data for Koulamoutou 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 Koulamoutou

In Koulamoutou in September, the precipitation amount is 118 mm (4.6 in) spread over 24 days.

September Precipitation Trends in Koulamoutou

The chart displays monthly precipitation patterns in Koulamoutou, 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 Koulamoutou, September typically receives around 118 mm (4.6 inches) of precipitation spread over approximately 24 days.
JanFebMarAprMayJunJulAugSepOctNovDec114142172175171553456118280221183
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Koulamoutou

In Koulamoutou in September humidity is 91%. With an average temperature of 25°C (77°F), this humidity feels like a heavy blanket enveloping your skin, making every step feel laborious and the air thick and sticky, which can make traveling quite uncomfortable.

September Average Humidity in Koulamoutou

This chart illustrates the average monthly humidity levels in Koulamoutou, 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 Koulamoutou is approximately 91%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%87%87%88%90%89%89%90%91%92%93%89%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Koulamoutou

In Koulamoutou 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 Koulamoutou.

Maximum UV Index Levels in Koulamoutou for September

The chart shows the monthly maximum UV Index (UVI) for Koulamoutou 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 Koulamoutou typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec131314141310101113131312
Data source: Koulamoutou 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 Koulamoutou Compares to Other Months

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

This table compares monthly weather conditions in Koulamoutou, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather26°C (79°F)114 mm (4.5 inches)87%extreme
February Weather26°C (79°F)142 mm (5.6 inches)87%extreme
March Weather26°C (79°F)172 mm (6.8 inches)87%extreme
April Weather26°C (79°F)175 mm (6.9 inches)88%extreme
May Weather25°C (78°F)171 mm (6.7 inches)90%extreme
June Weather25°C (77°F)55 mm (2.2 inches)89%very high
July Weather24°C (76°F)34 mm (1.3 inches)89%very high
August Weather24°C (76°F)56 mm (2.2 inches)90%extreme
September Weather25°C (77°F)118 mm (4.6 inches)91%extreme
October Weather25°C (77°F)280 mm (11.0 inches)92%extreme
November Weather25°C (77°F)221 mm (8.7 inches)92%extreme
December Weather25°C (78°F)182 mm (7.2 inches)89%extreme

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