Cairns weather in August 2025

Expect 26°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Cairns in August. Check more long-term weather averages for Cairns in August before you book your next holiday to Queensland in 2025/2026.

  • 26°C maximum daytime temperature in August in Cairns26
    26°C max day temperature
  • 8 hours of sunshine per day
  • 4 days with some rainfall in August in Cairns4
    4 days with some rainfall
  • 17°C minimum night-time temperature in August in Cairns17
    17°C min night temperature
  • 12 hours of daylight per day in August in Cairns12
    12 hours of daylight per day
  • Low heat & humidity in August in CairnsL
    Low heat & humidity
  • 38 mm monthly rainfall in August in Cairns38
    38 mm of monthly rainfall
  • UV (maximum) index 9 (Very High) in August in Cairns9
    9 (Very High) UV index
  • 23°C sea temperature in August in Cairns23
    23°C sea temperature

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The August weather guide for Queensland (Cairns) 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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How hot is it in Cairns in August?

Daytime temperatures usually reach 26°C in Cairns in August with low heat and humidity, falling to 17°C at night.

How sunny is it in Cairns in August?

There are normally 8 hours of bright sunshine each day in Cairns in August - that's 68% of daylight hours.

How warm is the sea around Cairns in August?

The average sea temperature around Cairns in August is 23°C.

Does it rain in Cairns in August?

There are usually 4 days with some rain in Cairns in August and the average monthly rainfall is 38mm.

Cairns August sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 06:42 18:04
Saturday, 16th August 2025 06:35 18:08
Sunday, 31st August 2025 06:25 18:10

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