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September Weather in Riversdale, South Africa

Last updated: August 31, 2025

In September, the average temperature in Riversdale, South Africa is around 15°C (60°F), but you might experience a wide range of temperatures from a chilly minimum of 3°C (37°F) to a scorching maximum of 39°C (102°F). Expect about 32 mm (1.2 in) of precipitation over 5 days, coupled with an average humidity level of 77%. Stay prepared for diverse weather conditions!

September Temperature in Riversdale

In September in Riversdale, the average temperature is 15°C (60°F). Maximum temperatures can reach 39°C (102°F), while minimums can drop as low as 3°C (37°F). Be prepared for a wide range of temperatures when traveling, ensuring you pack layers for both warm and cool conditions.

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

The chart illustrates September temperature patterns in Riversdale, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Riversdale, September typically has an average temperature of 15°C (60°F), with highs reaching up to 39°C (102°F) and lows dropping to around 3°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec727269646057555559636669
Data source: Temperature data for Riversdale 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 Riversdale

In Riversdale in September, the precipitation amount is 32 mm (1.2 in) over the course of 5 days.

September Precipitation Trends in Riversdale

The chart displays monthly precipitation patterns in Riversdale, 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 Riversdale, September typically receives around 32 mm (1.2 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec331936182916263132324424
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Riversdale

In Riversdale in September, humidity is 77%. With an average temperature of 15°C (60°F), this humidity feels like you're wading through a warm, heavy blanket, making travel feel more exhausting and sticky than usual.

September Average Humidity in Riversdale

This chart illustrates the average monthly humidity levels in Riversdale, 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 Riversdale is approximately 77%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec79%82%83%82%78%77%79%76%77%79%77%79%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Riversdale

In Riversdale in September, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Riversdale.

Maximum UV Index Levels in Riversdale for September

The chart shows the monthly maximum UV Index (UVI) for Riversdale 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 Riversdale typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141311854469111214
Data source: Riversdale 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 Riversdale Compares to Other Months

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

This table compares monthly weather conditions in Riversdale, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather22°C (72°F)33 mm (1.3 inches)79%extreme
February Weather22°C (72°F)19 mm (0.7 inches)82%extreme
March Weather21°C (69°F)36 mm (1.4 inches)83%extreme
April Weather18°C (65°F)18 mm (0.7 inches)82%very high
May Weather16°C (61°F)28 mm (1.1 inches)78%moderate
June Weather14°C (57°F)16 mm (0.6 inches)77%moderate
July Weather13°C (55°F)26 mm (1.0 inches)78%moderate
August Weather13°C (55°F)31 mm (1.2 inches)76%high
September Weather15°C (60°F)32 mm (1.2 inches)77%very high
October Weather17°C (64°F)32 mm (1.3 inches)79%extreme
November Weather19°C (66°F)44 mm (1.7 inches)77%extreme
December Weather21°C (69°F)24 mm (0.9 inches)79%extreme

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