The climate in Cairns during August can be summarized as warm and reasonably dry.
August is in the winter in Cairns and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a comfortable 26°C (79°F), whilst at night 17°C (62°F) is normal.
Daytime temperature | 25.9°C 78.6°F |
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Nightly temperature | 16.7°C 62.1°F |
Average temperature | 21.3°C 70.3°F |
Daily sunshine | 8.4 hrs |
Avg rainfall | 38 mm 1.5 ins |
Rainy days | 4 days |
Sea temperature | 24.1°C 75.5°F |
Humidity | 63% |
Windspeed | 18.4kph 11 mph |
On average August is the driest month of the year in Cairns with around 38mm 1.5 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 4 days, although this may vary considerably.
On the flip side this corresponds to an average of 8.4 hours of sunshine per day.
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Cairns in August 2025.
Best places to visit in August
Hottest month: | January | 30.8°C 87.4°F |
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Driest month: | August | 38mm 1.5ins |
Sunniest month: | October | 9hrs |
Coldest month: | July | 24.6°C 76.3°F |
Wettest month: | March | 442mm 17.4ins |