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Weather in Santa Ana for September 2025

Your guide to Santa Ana weather in September - trends and predictions
  • In general, the average temperature in Santa Ana at the beginning of September is 30.4 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 26.9 °F by the end of September.

  • With an average of 2 rainy days, Santa Ana experiences minimal rainfall in September, ensuring that most days remain pleasantly dry.

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Average dry days
28
Dry days
Average rainy days
2
Rainy days
Average snowy days
0
Snow days
Average temperatures
26°/17°
Temperatures
Average wind speed
16 km/h
Avg max wind
Average humidity
66 %
Avg humidity

Santa Ana in September average weather

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Temperatures trend during September in Santa Ana

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
Patchy rain possible
29° /19° 1.5 mm 7
Sept. 2 Cloudy
Cloudy
29° /20° 0 mm 7
Sept. 3 Overcast
Overcast
28° /19° 0 mm 7
Sept. 4 Overcast
Overcast
29° /19° 0 mm 7
Sept. 5 Overcast
Overcast
31° /20° 0 mm 8
Sept. 6 Overcast
Overcast
33° /21° 0 mm 8
Sept. 7 Partly cloudy
Partly cloudy
34° /20° 0 mm 9
Sept. 8 Sunny
Sunny
36° /22° 0.1 mm 8
Sept. 9 Sunny
Sunny
34° /23° 0 mm 9
Sept. 10 Overcast
Overcast
31° /21° 0 mm 8
Sept. 11 Partly cloudy
Partly cloudy
29° /19° 0 mm 8
Sept. 12 Partly cloudy
Partly cloudy
28° /17° 0 mm 8
Sept. 13 Cloudy
Cloudy
25° /17° 0 mm 6
Sept. 14 Cloudy
Cloudy
25° /16° 0 mm 7
Sept. 15 Overcast
Overcast
24° /16° 0 mm 6
Sept. 16 Overcast
Overcast
23° /16° 0.1 mm 5
Sept. 17 Overcast
Overcast
23° /16° 0 mm 6
Sept. 18 Overcast
Overcast
23° /15° 0 mm 5
Sept. 19 Overcast
Overcast
23° /15° 0 mm 5
Sept. 20 Overcast
Overcast
22° /14° 0 mm 5
Sept. 21 Patchy rain possible
Patchy rain possible
22° /14° 0.1 mm 5
Sept. 22 Overcast
Overcast
26° /15° 0 mm 6
Sept. 23 Cloudy
Cloudy
28° /16° 0 mm 7
Sept. 24 Mist
Mist
27° /15° 0 mm 7
Sept. 25 Cloudy
Cloudy
27° /15° 0 mm 7
Sept. 26 Overcast
Overcast
26° /14° 0 mm 7
Sept. 27 Partly cloudy
Partly cloudy
28° /15° 0 mm 7
Sept. 28 Partly cloudy
Partly cloudy
27° /15° 0 mm 7
Sept. 29 Cloudy
Cloudy
27° /15° 0 mm 6
Sept. 30 Light rain shower
Light rain shower
26° /15° 0.7 mm 7
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Important Notice
Our weather forecast for Santa Ana 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 Santa Ana forecast closer to your planned date for the most up-to-date weather information.

Santa Ana in September - FAQ

What are the expected maximum and minimum temperatures in Santa Ana during September?
During September, expect a variety of temperatures with highs around 26° and lows near 17°, suitable for diverse activities and preferences.
How much rainfall should be expected in Santa Ana during September?
Rainfall in Santa Ana 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 Santa Ana during September?
The average wind speed in Santa Ana during September is 16 km/h, suggesting breezy to windy conditions, depending on your activities.

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Location coordinates Where is Santa Ana?

Get accurate weather forecasts for Santa Ana, located at latitude 33.746 and longitude -117.868. Stay updated with localized weather information tailored for Santa Ana.

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