The weather in Hamilton Island in September is hot. The average temperatures are between 22°C and 23°C.
You can expect a few rainy days in Hamilton Island during September, but usually the weather is comfortable in September.
Our weather forecast can give you a great sense of what weather to expect in Hamilton Island in September 2025.
If you’re planning to visit Hamilton Island in the near future, we highly recommend that you review the 14 day weather forecast for Hamilton Island before you arrive.
Temperatures
23° / 22°
Rainy Days
1
Snowy Days
0
Dry Days
29
Rainfall
25
mm
Sun Hours
11.3
Hrs
