Western Australia weather in January 2025

Expect 31°C daytime maximum temperatures in the shade with on average 11 hours of sunshine per day in Western Australia in January. Check more long-term weather averages for Western Australia in January before you book your next holiday to Western Australia in 2025/2026.

  • 31°C maximum daytime temperature in January in Western Australia (Perth)31
    31°C max day temperature
  • 11 hours of sunshine per day
  • 3 days with some rainfall in January in Western Australia (Perth)3
    3 days with some rainfall
  • 18°C minimum night-time temperature in January in Western Australia (Perth)18
    18°C min night temperature
  • 14 hours of daylight per day in January in Western Australia (Perth)14
    14 hours of daylight per day
  • Moderate heat & humidity in January in Western Australia (Perth)M
    Moderate heat & humidity
  • 8 mm monthly rainfall in January in Western Australia (Perth)8
    8 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in January in Western Australia (Perth)11
    11+ (Extreme) UV index
  • 22°C sea temperature in January in Western Australia (Perth)22
    22°C sea temperature

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The January weather guide for Western Australia (Perth) 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 Western Australia destinations

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

All Western Australia destinations

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

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How hot is it in Western Australia in January?

Daytime temperatures usually reach 31°C in Perth, Western Australia in January with moderate heat and humidity, falling to 18°C at night.

How sunny is it in Western Australia in January?

There are normally 11 hours of bright sunshine each day in Perth, Western Australia in January - that's 81% of daylight hours.

How warm is the sea around Western Australia in January?

The average sea temperature around Perth, Western Australia in January is 22°C.

Does it ever rain in Western Australia in January?

There are usually 3 days with some rain in Perth, Western Australia in January and the average monthly rainfall is 8mm.

Western Australia January sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st January 2025 05:14 19:26
Thursday, 16th January 2025 05:27 19:26
Friday, 31st January 2025 05:41 19:19

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