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September Weather in Ntoum, Gabon

Last updated: August 23, 2025

In September, the average temperature in Ntoum, Gabon hovers around 26°C (78°F). Expect mild evenings where the minimum temperature dips to 22°C (72°F), while sunny days can see a maximum of 30°C (87°F). However, be prepared for some rain, as the area receives 220 mm (8.7 in) of precipitation over 25 days, contributing to a high average humidity of 88%.

September Temperature in Ntoum

In September in Ntoum, the average temperature is 26°C (78°F), with maximums reaching 30°C (87°F) and minimums dropping to as low as 22°C (72°F). It's a great time to visit for warm weather and pleasant outdoor activities.

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

The chart illustrates September temperature patterns in Ntoum, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ntoum, September typically has an average temperature of 26°C (78°F), with highs reaching up to 30°C (87°F) and lows dropping to around 22°C (72°F).
JanFebMarAprMayJunJulAugSepOctNovDec808080808079777778787979
Data source: Temperature data for Ntoum 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 Ntoum

In Ntoum in September, the precipitation amount is 220 mm (8.7 in) spread over 25 days, indicating a relatively wet period for the area.

September Precipitation Trends in Ntoum

The chart displays monthly precipitation patterns in Ntoum, 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 Ntoum, September typically receives around 220 mm (8.7 inches) of precipitation spread over approximately 25 days.
JanFebMarAprMayJunJulAugSepOctNovDec2282503362622941285485221397466330
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Ntoum

In Ntoum in September, humidity is 88%. With an average temperature of 26°C (78°F), this humidity feels like stepping into a warm, thick blanket, making travel feel heavy and sticky, where the air clings to your skin and every movement can feel laborious.

September Average Humidity in Ntoum

This chart illustrates the average monthly humidity levels in Ntoum, 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 Ntoum is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec78%74%75%79%80%80%80%85%88%87%84%80%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Ntoum

In Ntoum in September, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Ntoum.

Maximum UV Index Levels in Ntoum for September

The chart shows the monthly maximum UV Index (UVI) for Ntoum 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 Ntoum typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec121213141210101112131211
Data source: Ntoum 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 Ntoum Compares to Other Months

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

This table compares monthly weather conditions in Ntoum, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather26°C (80°F)228 mm (9.0 inches)78%extreme
February Weather27°C (81°F)250 mm (9.8 inches)74%extreme
March Weather27°C (81°F)336 mm (13.2 inches)75%extreme
April Weather27°C (81°F)262 mm (10.3 inches)79%extreme
May Weather27°C (80°F)294 mm (11.6 inches)80%extreme
June Weather26°C (79°F)128 mm (5.0 inches)80%very high
July Weather25°C (77°F)54 mm (2.1 inches)80%very high
August Weather25°C (78°F)85 mm (3.3 inches)85%extreme
September Weather26°C (78°F)220 mm (8.7 inches)88%extreme
October Weather26°C (79°F)397 mm (15.6 inches)87%extreme
November Weather26°C (79°F)465 mm (18.3 inches)84%extreme
December Weather26°C (80°F)330 mm (13.0 inches)80%extreme

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