Australia weather in May 2025

Expect 20°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Australia in May. Check more long-term weather averages for Australia in May before you book your next holiday to Australia in 2025/2026.

  • 20°C maximum daytime temperature in May in Australia (Sydney)20
    20°C max day temperature
  • 6 hours of sunshine per day
  • 11 days with some rainfall in May in Australia (Sydney)11
    11 days with some rainfall
  • 12°C minimum night-time temperature in May in Australia (Sydney)12
    12°C min night temperature
  • 10 hours of daylight per day in May in Australia (Sydney)10
    10 hours of daylight per day
  • No heat & humidity in May in Australia (Sydney)0
    No heat & humidity
  • 108 mm monthly rainfall in May in Australia (Sydney)108
    108 mm of monthly rainfall
  • UV (maximum) index 3 (Moderate) in May in Australia (Sydney)3
    3 (Moderate) UV index
  • 20°C sea temperature in May in Australia (Sydney)20
    20°C sea temperature

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The May weather guide for Australia (Sydney) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Top Australia destinations

Below are average maximum temperatures at popular countries and places in Australia in May. Select a holiday destination to see more weather parameters.

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Metric (°C / mm)  |  Imperial (°F / inches)

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More about Australia

How hot is it in Australia in May?

Daytime temperatures usually reach 20°C in Sydney, Australia in May, falling to 12°C at night.

How sunny is it in Australia in May?

There are normally 6 hours of bright sunshine each day in Sydney, Australia in May - that's 56% of daylight hours.

How warm is the sea around Australia in May?

The average sea temperature around Sydney, Australia in May is 20°C.

Does it rain in Australia in May?

There are usually 11 days with some rain in Sydney, Australia in May and the average monthly rainfall is 108mm.

Australia May sunrise & sunset times

Browse the sunrise and sunset times for Australia in May 2025. Select a month to view Australia sunrise and sunset times for the next 12 months. The Australia sunrise and sunset times shown below are for Sydney.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 06:30 17:14
Friday, 16th May 2025 06:41 17:02
Saturday, 31st May 2025 06:51 16:55

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