Sydney weather in May 2025

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

  • 20°C maximum daytime temperature in May in Sydney20
    20°C max day temperature
  • 6 hours of sunshine per day
  • 11 days with some rainfall in May in Sydney11
    11 days with some rainfall
  • 12°C minimum night-time temperature in May in Sydney12
    12°C min night temperature
  • 10 hours of daylight per day in May in Sydney10
    10 hours of daylight per day
  • No heat & humidity in May in Sydney0
    No heat & humidity
  • 108 mm monthly rainfall in May in Sydney108
    108 mm of monthly rainfall
  • UV (maximum) index 3 (Moderate) in May in Sydney3
    3 (Moderate) UV index
  • 20°C sea temperature in May in Sydney20
    20°C sea temperature

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The May weather guide for New South Wales (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.

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

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More about Australia

How hot is it in Sydney in May?

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

How sunny is it in Sydney in May?

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

How warm is the sea around Sydney in May?

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

Does it rain in Sydney in May?

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

Sydney May sunrise & sunset times

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

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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