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September Weather in Ouesso, Congo

Last updated: August 23, 2025

In Ouesso, Congo, the average temperature in September hovers around 25°C (77°F). The climate can be quite variable, with a minimum of 21°C (70°F) and a sizzling maximum of 34°C (93°F). Expect considerable moisture, as precipitation totals around 166 mm (6.5 in) over the course of 26 days, contributing to an average humidity level of 87%.

September Temperature in Ouesso

In September in Ouesso, the average temperature is 25°C (77°F). Maximums can reach 34°C (93°F), and minimums can be as low as 21°C (70°F). This mild climate makes it an ideal time for outdoor activities and exploring the local attractions.

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

The chart illustrates September temperature patterns in Ouesso, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ouesso, September typically has an average temperature of 25°C (77°F), with highs reaching up to 34°C (93°F) and lows dropping to around 21°C (70°F).
JanFebMarAprMayJunJulAugSepOctNovDec798080807978777777777878
Data source: Temperature data for Ouesso 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 Ouesso

In Ouesso in September, the precipitation amount is 166 mm (6.5 in) over the course of 26 days.

September Precipitation Trends in Ouesso

The chart displays monthly precipitation patterns in Ouesso, 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 Ouesso, September typically receives around 166 mm (6.5 inches) of precipitation spread over approximately 26 days.
JanFebMarAprMayJunJulAugSepOctNovDec3558137140109769411216618314557
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Ouesso

In Ouesso in September, humidity is 87%. With an average temperature of 25°C (77°F), this humidity feels like a thick, warm blanket enveloping you, making travel a challenge as sweat clings to your skin and the air feels heavy and stifling.

September Average Humidity in Ouesso

This chart illustrates the average monthly humidity levels in Ouesso, 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 Ouesso is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%84%82%85%88%88%87%87%87%91%90%86%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Ouesso

In Ouesso 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 Ouesso.

Maximum UV Index Levels in Ouesso for September

The chart shows the monthly maximum UV Index (UVI) for Ouesso 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 Ouesso typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec121213141311111113131211
Data source: Ouesso 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 Ouesso Compares to Other Months

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

This table compares monthly weather conditions in Ouesso, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather26°C (79°F)35 mm (1.4 inches)85%extreme
February Weather27°C (80°F)58 mm (2.3 inches)84%extreme
March Weather26°C (80°F)137 mm (5.4 inches)82%extreme
April Weather27°C (80°F)140 mm (5.5 inches)85%extreme
May Weather26°C (79°F)109 mm (4.3 inches)88%extreme
June Weather26°C (78°F)76 mm (3.0 inches)88%extreme
July Weather25°C (77°F)94 mm (3.7 inches)87%extreme
August Weather25°C (77°F)112 mm (4.4 inches)87%extreme
September Weather25°C (77°F)166 mm (6.5 inches)87%extreme
October Weather25°C (77°F)183 mm (7.2 inches)91%extreme
November Weather25°C (78°F)145 mm (5.7 inches)90%extreme
December Weather26°C (79°F)57 mm (2.3 inches)86%extreme

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