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May Weather in Caledon, South Africa

Last updated: August 31, 2025

In May, the average temperature in Caledon, South Africa is a mild 15°C (59°F). Expect a minimum of 5°C (42°F) and a maximum of 31°C (88°F), offering a delightful range for outdoor activities. Prepare for some light rain, with precipitation totaling 56 mm (2.2 in) over approximately 4 days. Don't forget, the average humidity hovers around 78%, giving that cozy atmosphere typical of the season!

May Temperature in Caledon

In May in Caledon, the average temperature is 15°C (59°F). Maximum temperatures can reach 31°C (88°F), while the minimum can drop as low as 5°C (42°F). It's advisable to pack layers to accommodate both warm and cooler days during your travels.

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

The chart illustrates May 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, May typically has an average temperature of 15°C (59°F), with highs reaching up to 31°C (88°F) and lows dropping to around 5°C (42°F).
JanFebMarAprMayJunJulAugSepOctNovDec707168635955535357616467
Data source: Temperature data for Caledon 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.

May Precipitation in Caledon

In Caledon in May, the total precipitation amount is 56 mm (2.2 in) over the course of 4 days.

May Precipitation Trends in Caledon

The chart displays monthly precipitation patterns in Caledon, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Caledon, May typically receives around 56 mm (2.2 inches) of precipitation spread over approximately 4 days.
JanFebMarAprMayJunJulAugSepOctNovDec291632215654585835424227
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Caledon

In Caledon in May, humidity is 78%. With an average temperature of 15°C (59°F), this humidity feels like a warm, enveloping blanket that clings to your skin, making outdoor activities a bit more tiring and requiring frequent breaks for hydration as you explore the area.

May Average Humidity in Caledon

This chart illustrates the average monthly humidity levels in Caledon, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Caledon is approximately 78%, 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 May generated using information from the Copernicus Climate Change Service.

May UV Index in Caledon

In Caledon in May, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Caledon.

Maximum UV Index Levels in Caledon for May

The chart shows the monthly maximum UV Index (UVI) for Caledon in May, 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 May, the maximum UV index in Caledon typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141311753459111214
Data source: Caledon May 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 May 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 May’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 May’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

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