The temperatures in Surprise during September are extremely high, between 28°C and hot as 36°C, drinking water regularly is advisable.
You can expect a few rainy days in Surprise 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 Surprise in September 2025.
If you’re planning to visit Surprise in the near future, we highly recommend that you review the 14 day weather forecast for Surprise before you arrive.
Temperatures
36° / 28°
Rainy Days
2
Snowy Days
0
Dry Days
28
Rainfall
53
mm
Sun Hours
11.9
Hrs