Cairns Weather in May
What's the weather like in Cairns (Queensland) in May 2025?
The climate in Cairns during May can be summarized as hot, humid and wet.
May is in the fall / autumn in Cairns and is typically the 5th coldest month of the year. Daytime maximum temperatures average around a muggy 27°C (80°F), whilst at night 19°C (67°F) is normal.
| Daytime temperature | 26.8°C 80.2°F |
|---|---|
| Nightly temperature | 19.3°C 66.7°F |
| Average temperature | 23°C 73.4°F |
| Daily sunshine | 6.7 hrs |
| Avg rainfall | 138 mm 5.4 ins |
| Rainy days | 8 days |
| Sea temperature | 26.2°C 79.1°F |
| Humidity | 70% |
| Windspeed | 19.8kph 12 mph |
On average May is the 6th wettest month of the year in Cairns with around 138mm 5.4 inches of rain making it a wet time to visit. This rainfall is typically spread over 8 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.7 hours of sunshine per day.
May temperatures in Cairns
May rainfall
May hourly sunshine
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 May 2025.
Other monthly averages
Cairns weather stats
| Hottest month: | January | 30.8°C 87.4°F |
|---|---|---|
| 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 |
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