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May Weather in Adelaide, South Africa

Last updated: August 31, 2025

In May, the average temperature in Adelaide, South Africa hovers around 16°C (60°F). Expect fluctuations with minimums dipping to 2°C (37°F) and maximums reaching 33°C (91°F). During this month, precipitation totals approximately 28 mm (1.1 in) over 4 days, while humidity levels remain high at an average of 84%.

May Temperature in Adelaide

In May in Adelaide, the average temperature is 16°C (60°F). Maximums can reach up to 33°C (91°F), while minimums can drop as low as 2°C (37°F). Be prepared for a range of temperatures if you plan to travel during this time.

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

The chart illustrates May temperature patterns in Adelaide, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Adelaide, May typically has an average temperature of 16°C (60°F), with highs reaching up to 33°C (91°F) and lows dropping to around 2°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec717169636057565560636568
Data source: Temperature data for Adelaide 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 Adelaide

In Adelaide in May, the precipitation amount is 28 mm (1.1 in) over the course of 4 days.

May Precipitation Trends in Adelaide

The chart displays monthly precipitation patterns in Adelaide, 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 Adelaide, May typically receives around 28 mm (1.1 inches) of precipitation spread over approximately 4 days.
JanFebMarAprMayJunJulAugSepOctNovDec68916257285122439606070
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Adelaide

In Adelaide in May humidity is 84%. With an average temperature of 16°C (60°F), this humidity feels like a warm, heavy blanket wrapping around you, making outdoor activities feel muggy and potentially exhausting for travelers.

May Average Humidity in Adelaide

This chart illustrates the average monthly humidity levels in Adelaide, 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 Adelaide is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%79%86%85%84%79%77%72%79%77%78%80%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Adelaide

In Adelaide in May, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Adelaide, you can refer to this Hourly UV Index in Adelaide.

Maximum UV Index Levels in Adelaide for May

The chart shows the monthly maximum UV Index (UVI) for Adelaide 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 Adelaide typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151412864469111315
Data source: Adelaide 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 Adelaide Compares to Other Months

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

This table compares monthly weather conditions in Adelaide, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather22°C (71°F)68 mm (2.7 inches)80%extreme
February Weather22°C (71°F)91 mm (3.6 inches)79%extreme
March Weather20°C (69°F)62 mm (2.5 inches)86%extreme
April Weather17°C (63°F)57 mm (2.2 inches)85%very high
May Weather16°C (60°F)28 mm (1.1 inches)84%high
June Weather14°C (58°F)5 mm (0.2 inches)79%moderate
July Weather13°C (56°F)12 mm (0.5 inches)77%moderate
August Weather13°C (55°F)24 mm (1.0 inches)72%high
September Weather16°C (60°F)39 mm (1.5 inches)79%very high
October Weather17°C (63°F)60 mm (2.4 inches)77%extreme
November Weather18°C (65°F)60 mm (2.4 inches)78%extreme
December Weather20°C (68°F)70 mm (2.8 inches)80%extreme

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