The weather in Garden Grove in September is hot. The average temperatures are between 20°C and 28°C.
You can expect a few rainy days in Garden Grove 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 Garden Grove in September 2025.
If you’re planning to visit Garden Grove in the near future, we highly recommend that you review the 14 day weather forecast for Garden Grove before you arrive.
Temperatures
28° / 20°
Rainy Days
1
Snowy Days
0
Dry Days
29
Rainfall
15
mm
Sun Hours
11.9
Hrs
