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May Weather in Ballan, Australia

Last updated: August 22, 2025

In May, the average temperature in Ballan, Australia hovers around 9°C (48°F), with minimums dipping to 0°C (31°F) and maximums reaching a pleasant 21°C (71°F). Expect about 67 mm (2.6 in) of precipitation spread over 10 days, accompanied by an average humidity of 79%. It’s a month of balanced conditions and refreshing breezes!

May Temperature in Ballan

In May in Ballan, the average temperature is 9°C (48°F). Maximums can reach 21°C (71°F), and minimums can be as low as 0°C (31°F). This makes it a great time for travelers to enjoy a mild climate, perfect for outdoor activities and exploring the local attractions.

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

The chart illustrates May temperature patterns in Ballan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ballan, May typically has an average temperature of 9°C (48°F), with highs reaching up to 21°C (71°F) and lows dropping to around 0°C (31°F).
JanFebMarAprMayJunJulAugSepOctNovDec656260544844434448525760
Data source: Temperature data for Ballan 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 Ballan

In Ballan in May, the total precipitation amount is 67 mm (2.6 in) over a period of 10 days.

May Precipitation Trends in Ballan

The chart displays monthly precipitation patterns in Ballan, 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 Ballan, May typically receives around 67 mm (2.6 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec374439496752476858797563
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Ballan

In Ballan in May humidity is 79%. With an average temperature of 9°C (48°F), this humidity feels like a chilly mist wrapping around you, making outdoor activities brisk yet invigorating, but it can also leave you feeling damp and slightly chilled if you're not dressed appropriately for the conditions.

May Average Humidity in Ballan

This chart illustrates the average monthly humidity levels in Ballan, 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 Ballan is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec43%49%60%71%79%82%83%79%72%61%59%50%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Ballan

In Ballan in May, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Ballan for better planning.

Maximum UV Index Levels in Ballan for May

The chart shows the monthly maximum UV Index (UVI) for Ballan 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 Ballan typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec14121174335791214
Data source: Ballan 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 Ballan Compares to Other Months

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

This table compares monthly weather conditions in Ballan, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather18°C (65°F)37 mm (1.5 inches)43%extreme
February Weather17°C (62°F)44 mm (1.7 inches)49%extreme
March Weather16°C (61°F)39 mm (1.5 inches)60%extreme
April Weather12°C (54°F)49 mm (1.9 inches)71%high
May Weather9°C (48°F)67 mm (2.6 inches)79%moderate
June Weather7°C (44°F)52 mm (2.0 inches)81%moderate
July Weather6°C (44°F)47 mm (1.8 inches)83%moderate
August Weather7°C (44°F)68 mm (2.7 inches)79%moderate
September Weather9°C (48°F)58 mm (2.3 inches)72%high
October Weather11°C (52°F)79 mm (3.1 inches)61%very high
November Weather14°C (57°F)75 mm (3.0 inches)59%extreme
December Weather16°C (61°F)63 mm (2.5 inches)50%extreme

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