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September Weather in Isiro, Democratic Republic of the Congo

Last updated: August 23, 2025

In September, the average temperature in Isiro, Democratic Republic of the Congo hovers around 23°C (73°F). Expect a minimum of 18°C (65°F) and a maximum of 32°C (89°F). Additionally, be prepared for a fair amount of rain, as precipitation totals around 218 mm (8.6 in) over 26 days. With an average humidity of 87%, the air tends to feel quite muggy—perfect for cozy indoor activities!

September Temperature in Isiro

In September in Isiro, the average temperature is 23°C (73°F). Maximums can reach 32°C (89°F), while minimums can be as low as 18°C (65°F). This mild and pleasant weather makes Isiro an ideal destination for travelers looking to enjoy outdoor activities and explore the local culture.

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

The chart illustrates September temperature patterns in Isiro, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Isiro, September typically has an average temperature of 23°C (73°F), with highs reaching up to 32°C (89°F) and lows dropping to around 18°C (65°F).
JanFebMarAprMayJunJulAugSepOctNovDec787978767574737373737476
Data source: Temperature data for Isiro 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 Isiro

In Isiro in September, the precipitation amount is 218 mm (8.6 in) over the course of 26 days.

September Precipitation Trends in Isiro

The chart displays monthly precipitation patterns in Isiro, 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 Isiro, September typically receives around 218 mm (8.6 inches) of precipitation spread over approximately 26 days.
JanFebMarAprMayJunJulAugSepOctNovDec133512016415916414417421821517249
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Isiro

In Isiro in September humidity is 87%. With an average temperature of 23°C (73°F), this humidity feels like a warm embrace, making travel sticky and challenging as sweat lingers on your skin, turning every step into a small effort and making refreshing breaks a necessity.

September Average Humidity in Isiro

This chart illustrates the average monthly humidity levels in Isiro, 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 Isiro is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec72%69%71%82%87%87%87%87%87%90%90%83%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Isiro

In Isiro 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 Isiro.

Maximum UV Index Levels in Isiro for September

The chart shows the monthly maximum UV Index (UVI) for Isiro 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 Isiro typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec121214151411111313131211
Data source: Isiro 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 Isiro Compares to Other Months

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

This table compares monthly weather conditions in Isiro, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather26°C (78°F)12 mm (0.5 inches)72%extreme
February Weather26°C (80°F)35 mm (1.4 inches)69%extreme
March Weather25°C (78°F)120 mm (4.7 inches)71%extreme
April Weather24°C (76°F)164 mm (6.5 inches)82%extreme
May Weather24°C (75°F)159 mm (6.3 inches)87%extreme
June Weather23°C (74°F)164 mm (6.5 inches)87%extreme
July Weather23°C (73°F)144 mm (5.7 inches)87%extreme
August Weather23°C (73°F)174 mm (6.8 inches)87%extreme
September Weather23°C (73°F)218 mm (8.6 inches)87%extreme
October Weather23°C (74°F)215 mm (8.5 inches)90%extreme
November Weather23°C (74°F)172 mm (6.8 inches)90%extreme
December Weather24°C (76°F)49 mm (1.9 inches)83%extreme

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