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September Weather in Usa River, Tanzania

Last updated: August 28, 2025

In September, the average temperature in Usa River, Tanzania is a pleasant 18°C (65°F). Expect a range between a cool 10°C (50°F) and a warm 27°C (82°F). During this month, precipitation amounts to 8 mm (0.3 in) over just 1 day, and the average humidity hovers around 60%. Perfect for enjoying the mild weather!

September Temperature in Usa River

In September in Usa River, the average temperature is 18°C (65°F), with maximums reaching 27°C (82°F) and minimums dipping as low as 10°C (50°F). This mild weather makes it an ideal time for travelers to explore the beauty of Usa River.

September Weather in Usa River: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Usa River, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Usa River, September typically has an average temperature of 18°C (65°F), with highs reaching up to 27°C (82°F) and lows dropping to around 10°C (50°F).
JanFebMarAprMayJunJulAugSepOctNovDec686969686461606264676867
Data source: Temperature data for Usa River 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 Usa River

In Usa River in September, the precipitation amount is 8 mm (0.3 in) over the course of 1 day.

September Precipitation Trends in Usa River

The chart displays monthly precipitation patterns in Usa River, 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 Usa River, September typically receives around 8 mm (0.3 inches) of precipitation spread over approximately 1 days.
JanFebMarAprMayJunJulAugSepOctNovDec917520117568111011851112112
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Usa River

In Usa River in September humidity is 60%. With an average temperature of 18°C (65°F), this humidity feels like a mild embrace, making it comfortable for exploring the sights, yet it can cause a slight stickiness in the air that may prompt occasional breaks and hydration.

September Average Humidity in Usa River

This chart illustrates the average monthly humidity levels in Usa River, 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 Usa River is approximately 60%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec68%62%55%58%71%73%68%63%60%68%83%84%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Usa River

In Usa River 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 Usa River, you can check here.

Maximum UV Index Levels in Usa River for September

The chart shows the monthly maximum UV Index (UVI) for Usa River 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 Usa River typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151616161412121314141314
Data source: Usa River 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 Usa River Compares to Other Months

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

This table compares monthly weather conditions in Usa River, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather20°C (68°F)91 mm (3.6 inches)68%extreme
February Weather20°C (69°F)75 mm (2.9 inches)62%extreme
March Weather21°C (70°F)201 mm (7.9 inches)55%extreme
April Weather20°C (68°F)174 mm (6.9 inches)58%extreme
May Weather18°C (64°F)68 mm (2.7 inches)71%extreme
June Weather16°C (62°F)11 mm (0.4 inches)73%extreme
July Weather16°C (60°F)10 mm (0.4 inches)68%extreme
August Weather17°C (62°F)11 mm (0.4 inches)63%extreme
September Weather18°C (65°F)8 mm (0.3 inches)60%extreme
October Weather19°C (67°F)51 mm (2.0 inches)68%extreme
November Weather20°C (68°F)112 mm (4.4 inches)83%extreme
December Weather20°C (67°F)112 mm (4.4 inches)84%extreme

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