The weather in Saint George in September is very hot. The average temperatures are between 25°C and 31°C, drinking water regularly is advisable.
You can expect about 3 to 8 days of rain in Saint George 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 Saint George in September 2025.
If you’re planning to visit Saint George in the near future, we highly recommend that you review the 14 day weather forecast for Saint George before you arrive.