Click on a day for an hourly weather forecast
The temperatures in Rainbow Beach in September are comfortable with low of 12°C and and high up to 21°C.
You can expect about 3 to 8 days of rain in Rainbow Beach during the month of September. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Rainbow Beach in September 2025.
If you’re planning to visit Rainbow Beach in the near future, we highly recommend that you review the 14 day weather forecast for Rainbow Beach before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | -6° / -12° | 4 | 10 | 18 | 49 mm | Awful | Rainbow Beach in January |
| February | -5° / -11° | 3 | 9 | 16 | 53 mm | Awful | Rainbow Beach in February |
| March | 4° / -3° | 7 | 13 | 11 | 81 mm | Awful | Rainbow Beach in March |
| April | 10° / 2° | 7 | 17 | 6 | 130 mm | Awful | Rainbow Beach in April |
| May | 17° / 8° | 8 | 23 | 0 | 164 mm | Ok | Rainbow Beach in May |
| June | 23° / 14° | 7 | 23 | 0 | 146 mm | Good | Rainbow Beach in June |
| July | 26° / 16° | 6 | 25 | 0 | 121 mm | Perfect | Rainbow Beach in July |
| August | 25° / 16° | 5 | 26 | 0 | 97 mm | Perfect | Rainbow Beach in August |
| September | 21° / 12° | 5 | 25 | 0 | 89 mm | Good | Rainbow Beach in September |
| October | 13° / 6° | 7 | 22 | 2 | 114 mm | Awful | Rainbow Beach in October |
| November | 5° / -1° | 5 | 18 | 6 | 80 mm | Awful | Rainbow Beach in November |
| December | -2° / -7° | 5 | 11 | 15 | 67 mm | Awful | Rainbow Beach in December |