nomadseason

September Weather in Caledon, South Africa

Last updated: August 31, 2025

In September, the average temperature in Caledon, South Africa hovers around 14°C (57°F). Expect a range, with minimums dipping to 4°C (39°F) and maximums soaring to 34°C (93°F). You'll likely encounter 35 mm (1.4 in) of precipitation over 8 days, paired with an average humidity of 76%, creating a unique climate experience!

September Temperature in Caledon

In September in Caledon, the average temperature is 14°C (57°F). Maximum temperatures can reach 34°C (93°F), while the minimum can drop to as low as 4°C (39°F). Be prepared for a wide temperature range and pack accordingly for your trip!

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

The chart illustrates September temperature patterns in Caledon, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Caledon, September typically has an average temperature of 14°C (57°F), with highs reaching up to 34°C (93°F) and lows dropping to around 4°C (39°F).
JanFebMarAprMayJunJulAugSepOctNovDec707168635955535357616467
Data source: Temperature data for Caledon generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Caledon

In Caledon in September, the precipitation amount is 35 mm (1.4 in) over the course of 8 days.

September Precipitation Trends in Caledon

The chart displays monthly precipitation patterns in Caledon, 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 Caledon, September typically receives around 35 mm (1.4 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec291632215654585835424227
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Caledon

In Caledon in September humidity is 76%. With an average temperature of 14°C (57°F), this humidity feels like a warm blanket wrapped around you, creating a heavy atmosphere that can make outdoor activities feel sluggish and stifling, urging travelers to seek shade and refreshment more frequently.

September Average Humidity in Caledon

This chart illustrates the average monthly humidity levels in Caledon, 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 Caledon is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec77%80%81%80%78%79%80%77%76%77%75%78%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Caledon

In Caledon 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 Caledon.

Maximum UV Index Levels in Caledon for September

The chart shows the monthly maximum UV Index (UVI) for Caledon 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 Caledon typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141311753459111214
Data source: Caledon 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 Caledon Compares to Other Months

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

This table compares monthly weather conditions in Caledon, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather21°C (71°F)29 mm (1.1 inches)77%extreme
February Weather22°C (71°F)16 mm (0.6 inches)80%extreme
March Weather20°C (68°F)32 mm (1.2 inches)81%extreme
April Weather17°C (63°F)21 mm (0.8 inches)80%high
May Weather15°C (59°F)56 mm (2.2 inches)78%moderate
June Weather13°C (55°F)54 mm (2.1 inches)79%moderate
July Weather12°C (53°F)58 mm (2.3 inches)80%moderate
August Weather12°C (53°F)58 mm (2.3 inches)77%moderate
September Weather14°C (57°F)35 mm (1.4 inches)76%very high
October Weather16°C (62°F)42 mm (1.6 inches)77%extreme
November Weather18°C (64°F)42 mm (1.7 inches)75%extreme
December Weather20°C (68°F)27 mm (1.1 inches)77%extreme

Compare Caledon's Climate with Cities Worldwide