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Garden Grove (CA)
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Garden Grove (CA)
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United States weather

Weather in Garden Grove, California for September 2025

Your guide to Garden Grove weather in September - trends and predictions

    Official Weather Alert ⚠️

  • Beach Hazards Statement - See hour by hour.

    • Temperatures

  • Until now, September 2025 in Garden Grove has been nearly identical to the historical average, with a temperature of 28.2 °F (showing only a slight deviation of -0.4 °F).

  • The forecast for the next days in Garden Grove predicts temperatures to be around 29 °F, close to the historical average.

  • In general, the average temperature in Garden Grove at the beginning of September is 29.6 °F. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 26.6 °F by the end of September.

    • Rain 🌧️

  • Precipitation in Garden Grove during September is a rare event, with an average of fewer than 2 rainy days.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
29
Dry days
Average rainy days
1
Rainy days
Average snowy days
0
Snow days
Average temperatures
25°/18°
Temperatures
Average wind speed
16 km/h
Avg max wind
Average humidity
66 %
Avg humidity

Garden Grove Weather September

Move between months or click on a day
August
October
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Patchy rain possible
28°
2
Cloudy
30°
3
Overcast
30°
4
Overcast
28°
5
Overcast
30°
6
Overcast
29°
7
Cloudy
32°
8
Partly cloudy
32°
9
Partly cloudy
30°
10
Cloudy
27°
11
Partly cloudy
26°
12
Mist
25°
13
Overcast
24°
14
Overcast
25°
15
Weather Alert Sunny
32°
16
Sunny
35°
17
Cloudy
26°
18
Moderate rain
26°
19
Patchy rain possible
25°
20
Sunny
27°
21
Sunny
30°
22
Sunny
31°
23
Sunny
30°
24
Sunny
31°
25
Sunny
30°
26
Sunny
26°
27
Sunny
26°
28
Sunny
25°
29
Overcast
25°
30
Light rain shower
23°

Temperatures trend during September in Garden Grove

See the weather trend as well as the moving average line

September weather in Garden Grove day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
Sept. 1 Patchy rain possible
Patchy rain possible
 28° /20° 1 mm 7
Sept. 2 Cloudy
Cloudy
 30° /21° 0 mm 7
Sept. 3 Overcast
Overcast
 30° /21° 0 mm 7
Sept. 4 Overcast
Overcast
 28° /20° 0 mm 7
Sept. 5 Overcast
Overcast
 30° /20° 0 mm 7
Sept. 6 Overcast
Overcast
 29° /20° 0 mm 7
Sept. 7 Cloudy
Cloudy
 32° /20° 0 mm 8
Sept. 8 Partly cloudy
Partly cloudy
 32° /21° 0 mm 7
Sept. 9 Partly cloudy
Partly cloudy
 30° /21° 0 mm 7
Sept. 10 Cloudy
Cloudy
 27° /20° 0 mm 6
Sept. 11 Partly cloudy
Partly cloudy
 26° /19° 0 mm 6
Sept. 12 Mist
Mist
 25° /18° 0 mm 6
Sept. 13 Overcast
Overcast
 24° /17° 0 mm 5
Sept. 14 Overcast
Overcast
 25° /17° 0 mm 6
Sept. 15 Sunny
Sunny
 32° /19° 0 mm 1.9
Sept. 16 Sunny
Sunny
 35° /20° 0 mm 1.9
Sept. 17 Cloudy
Cloudy
 26° /20° 0 mm 1.5
Sept. 18 Moderate rain
Moderate rain
 26° /23° 7.4 mm 1.9
Sept. 19 Patchy rain possible
Patchy rain possible
 25° /22° 2 mm 0
Sept. 20 Sunny
Sunny
 27° /21° 0 mm 6
Sept. 21 Sunny
Sunny
 30° /22° 0 mm 7
Sept. 22 Sunny
Sunny
 31° /24° 0 mm 7
Sept. 23 Sunny
Sunny
 30° /24° 0 mm 7
Sept. 24 Sunny
Sunny
 31° /23° 0 mm 7
Sept. 25 Sunny
Sunny
 30° /23° 0 mm 7
Sept. 26 Sunny
Sunny
 26° /21° 0 mm 6
Sept. 27 Sunny
Sunny
 26° /20° 0 mm 6
Sept. 28 Sunny
Sunny
 25° /20° 0 mm 6
Sept. 29 Overcast
Overcast
 25° /15° 0 mm 6
Sept. 30 Light rain shower
Light rain shower
 23° /16° 0.6 mm 6
Next
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.
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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 18°, 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 1 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.

September rainfall patterns in Garden Grove

Explore the daily rainfall trends and prepare for Garden Groves September weather 💧

UV exposure in Garden Grove during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️

Quick links

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Location coordinates Where is Garden Grove?

Get accurate weather forecasts for Garden Grove, located at latitude 33.774 and longitude -117.941. Stay updated with localized weather information tailored for Garden Grove.

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