Sydney weather in January 2025

Expect 26°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Sydney in January. Check more long-term weather averages for Sydney in January before you book your next holiday to New South Wales in 2025/2026.

  • 26°C maximum daytime temperature in January in Sydney26
    26°C max day temperature
  • 7 hours of sunshine per day
  • 12 days with some rainfall in January in Sydney12
    12 days with some rainfall
  • 19°C minimum night-time temperature in January in Sydney19
    19°C min night temperature
  • 14 hours of daylight per day in January in Sydney14
    14 hours of daylight per day
  • Low heat & humidity in January in SydneyL
    Low heat & humidity
  • 124 mm monthly rainfall in January in Sydney124
    124 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in January in Sydney11
    11+ (Extreme) UV index
  • 22°C sea temperature in January in Sydney22
    22°C sea temperature

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The January 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 January?

Daytime temperatures usually reach 26°C in Sydney in January with low heat and humidity, falling to 19°C at night.

How sunny is it in Sydney in January?

There are normally 7 hours of bright sunshine each day in Sydney in January - that's 51% of daylight hours.

How warm is the sea around Sydney in January?

The average sea temperature around Sydney in January is 22°C.

Does it rain in Sydney in January?

There are usually 12 days with some rain in Sydney in January and the average monthly rainfall is 124mm.

Sydney January sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st January 2025 05:48 20:09
Thursday, 16th January 2025 06:01 20:09
Friday, 31st January 2025 06:16 20:01

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