Click on a day for an hourly weather forecast
The weather in Cairns in May is hot. The average temperatures are between 20°C and 26°C.
You can expect a few rainy days in Cairns during May, but usually the weather is comfortable in May.
Our weather forecast can give you a great sense of what weather to expect in Cairns in May 2025.
If you’re planning to visit Cairns in the near future, we highly recommend that you review the 14 day weather forecast for Cairns before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 30° / 24° | 11 | 21 | 0 | 337 mm | Ok | Cairns in January |
| February | 30° / 24° | 10 | 19 | 0 | 302 mm | Ok | Cairns in February |
| March | 29° / 23° | 8 | 23 | 0 | 239 mm | Ok | Cairns in March |
| April | 28° / 22° | 4 | 27 | 0 | 123 mm | Perfect | Cairns in April |
| May | 26° / 20° | 2 | 30 | 0 | 56 mm | Perfect | Cairns in May |
| June | 24° / 18° | 1 | 29 | 0 | 41 mm | Perfect | Cairns in June |
| July | 24° / 18° | 1 | 30 | 0 | 34 mm | Perfect | Cairns in July |
| August | 25° / 17° | 1 | 30 | 0 | 27 mm | Perfect | Cairns in August |
| September | 27° / 19° | 1 | 29 | 0 | 27 mm | Perfect | Cairns in September |
| October | 28° / 20° | 1 | 30 | 0 | 51 mm | Perfect | Cairns in October |
| November | 29° / 22° | 2 | 28 | 0 | 81 mm | Good | Cairns in November |
| December | 30° / 23° | 5 | 26 | 0 | 149 mm | Good | Cairns in December |