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September Weather in Richmond, South Africa

Last updated: August 31, 2025

In Richmond, South Africa, the average temperature in September settles at a comfortable 16°C (61°F). However, temperatures can swing from a brisk 2°C (37°F) to a sweltering 37°C (99°F). Expect 55 mm (2.2 in) of precipitation spread over about 9 days, accompanied by an average humidity level of 85%. 🌦️

September Temperature in Richmond

In September in Richmond, the average temperature is 16°C (61°F). Maximum temperatures can reach as high as 37°C (99°F), while minimums can drop to a chilly 2°C (36°F). Therefore, it's wise to pack a variety of clothing options to be prepared for both warm and cool conditions during your travels.

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

The chart illustrates September temperature patterns in Richmond, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Richmond, September typically has an average temperature of 16°C (61°F), with highs reaching up to 37°C (99°F) and lows dropping to around 2°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec686967635955555761626466
Data source: Temperature data for Richmond 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 Richmond

In Richmond in September, the precipitation amount is 55 mm (2.2 in) over a span of 9 days.

September Precipitation Trends in Richmond

The chart displays monthly precipitation patterns in Richmond, 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 Richmond, September typically receives around 55 mm (2.2 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec11816410486451512465592146163
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Richmond

In Richmond in September, humidity is 85%. With an average temperature of 16°C (61°F), this humidity feels like a thick blanket wrapping around you, making outdoor activities feel sticky and the air heavy, which can be challenging for traveling and exploring the area comfortably.

September Average Humidity in Richmond

This chart illustrates the average monthly humidity levels in Richmond, 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 Richmond is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%86%86%86%86%80%80%80%85%86%87%86%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Richmond

In Richmond in September, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Richmond.

Maximum UV Index Levels in Richmond for September

The chart shows the monthly maximum UV Index (UVI) for Richmond 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 Richmond typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec1514129645710111315
Data source: Richmond 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 Richmond Compares to Other Months

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

This table compares monthly weather conditions in Richmond, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather20°C (69°F)118 mm (4.6 inches)85%extreme
February Weather20°C (69°F)164 mm (6.4 inches)86%extreme
March Weather20°C (68°F)104 mm (4.1 inches)86%extreme
April Weather17°C (63°F)86 mm (3.4 inches)86%very high
May Weather15°C (59°F)45 mm (1.8 inches)86%high
June Weather13°C (55°F)15 mm (0.6 inches)80%moderate
July Weather13°C (55°F)12 mm (0.5 inches)80%moderate
August Weather14°C (57°F)46 mm (1.8 inches)79%high
September Weather16°C (61°F)55 mm (2.2 inches)85%very high
October Weather17°C (62°F)92 mm (3.6 inches)86%extreme
November Weather18°C (64°F)146 mm (5.7 inches)87%extreme
December Weather19°C (67°F)163 mm (6.4 inches)86%extreme

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