Garden Grove
September
Weather in Garden Grove for September 2025
Your guide to Garden Grove weather in September - trends and predictions
In general, the average temperature in Garden Grove at the beginning of September is 28.3 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 24.1 °F by the end of September.
With an average of 2 rainy days, Garden Grove experiences minimal rainfall in September, ensuring that most days remain pleasantly dry.
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28
Dry days
2
Rainy days
0
Snow days
25°/17°
Temperatures
16 km/h
Avg max wind
70 %
Avg humidity
Garden Grove in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  27° | 2  27° | 3  27° | 4 27° | 5 29° | 6 29° | 7 32° |
| 8  34° | 9 33° | 10 29° | 11 27° | 12  25° | 13 24° | 14 24° |
| 15 23° | 16 22° | 17 23° | 18 22° | 19 23° | 20 22° | 21 21° |
| 22 25° | 23 25° | 24 24° | 25 25° | 26 24° | 27 24° | 28 24° |
| 29 25° | 30 23° |
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Temperatures trend during September in Garden Grove
See the weather trend as well as the moving average line
September weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 | Patchy rain possible | 27° /20° | 1.5 mm | 7 | |
| Sept. 2 | Cloudy | 27° /20° | 0 mm | 7 | |
| Sept. 3 | Overcast | 27° /20° | 0 mm | 7 | |
| Sept. 4 | Overcast | 27° /20° | 0 mm | 7 | |
| Sept. 5 | Overcast | 29° /20° | 0 mm | 7 | |
| Sept. 6 | Overcast | 29° /21° | 0 mm | 7 | |
| Sept. 7 | Cloudy | 32° /21° | 0 mm | 8 | |
| Sept. 8 | Partly cloudy | 34° /22° | 0 mm | 8 | |
| Sept. 9 | Partly cloudy | 33° /23° | 0 mm | 8 | |
| Sept. 10 | Cloudy | 29° /21° | 0 mm | 7 | |
| Sept. 11 | Partly cloudy | 27° /20° | 0 mm | 7 | |
| Sept. 12 | Mist | 25° /18° | 0 mm | 6 | |
| Sept. 13 | Overcast | 24° /18° | 0 mm | 6 | |
| Sept. 14 | Overcast | 24° /17° | 0 mm | 6 | |
| Sept. 15 | Overcast | 23° /17° | 0 mm | 5 | |
| Sept. 16 | Mist | 22° /17° | 0.1 mm | 5 | |
| Sept. 17 | Overcast | 23° /16° | 0 mm | 5 | |
| Sept. 18 | Overcast | 22° /16° | 0 mm | 5 | |
| Sept. 19 | Overcast | 23° /16° | 0 mm | 5 | |
| Sept. 20 | Overcast | 22° /15° | 0 mm | 5 | |
| Sept. 21 | Patchy rain possible | 21° /15° | 0.1 mm | 5 | |
| Sept. 22 | Overcast | 25° /16° | 0 mm | 6 | |
| Sept. 23 | Cloudy | 25° /17° | 0 mm | 6 | |
| Sept. 24 | Mist | 24° /15° | 0 mm | 6 | |
| Sept. 25 | Overcast | 25° /15° | 0 mm | 6 | |
| Sept. 26 | Overcast | 24° /15° | 0 mm | 5 | |
| Sept. 27 | Cloudy | 24° /15° | 0 mm | 6 | |
| Sept. 28 | Cloudy | 24° /15° | 0 mm | 5 | |
| Sept. 29 | Overcast | 25° /15° | 0 mm | 6 | |
| Sept. 30 | Light rain shower | 23° /16° | 0.6 mm | 6 | |
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Important Notice
Our weather forecast for Garden Grove in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Garden Grove forecast closer to your planned date for the most up-to-date weather information.
Garden Grove in September - FAQ
What are the expected maximum and minimum temperatures in Garden Grove during September?
During September, expect a variety of temperatures with highs around 25° and lows near 17°, suitable for diverse activities and preferences.
How much rainfall should be expected in Garden Grove during September?
Rainfall in Garden Grove during September is rare to nonexistent, with the total expected rainfall being less than 10 mm and approximately 2 days seeing any precipitation. Planning without the concern for rain is generally straightforward during this very dry period.
What are the typical wind conditions in Garden Grove during September?
The average wind speed in Garden Grove during September is 16 km/h, suggesting breezy to windy conditions, depending on your activities.
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