Cairns weather in August 2025

Expect 79°F 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.

  • 79°F maximum daytime temperature in August in Cairns79
    79°F max day temperature
  • 8 hours of sunshine per day
  • 4 days with some rainfall in August in Cairns4
    4 days with some rainfall
  • 63°F minimum night-time temperature in August in Cairns63
    63°F 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
  • 1.5 inches monthly rainfall in August in Cairns1.5
    1.5 inches of monthly rainfall
  • UV (maximum) index 9 (Very High) in August in Cairns9
    9 (Very High) UV index
  • 73°F sea temperature in August in Cairns73
    73°F 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)  |  Imperial (°F)

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How hot is it in Cairns in August?

Daytime temperatures usually reach 79°F in Cairns in August with low heat and humidity, falling to 63°F 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 73°F.

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 1.5 inches.

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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