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Weather in Los Angeles, California for September 2025

Your guide to Los Angeles weather in September - trends and predictions

    Temperatures

  • Until now, September 2025 in Los Angeles is cooler than usual, with temperatures averaging 28.2 °F, this is -3.4 °F below the typical seasonal average.

  • Expect cooler weather in the next days in Los Angeles with the forecast suggesting a temperature of 29.8 °F, lower than the historical average.

  • In general, the average temperature in Los Angeles at the beginning of September is 32.1 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 28.7 °F by the end of September.

    • Rain 🌧️

  • Precipitation in Los Angeles 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
29°/19°
Temperatures
Average wind speed
16 km/h
Avg max wind
Average humidity
55 %
Avg humidity

Los Angeles Weather September

Move between months or click on a day
August
October
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Sunny
31°
2
Sunny
31°
3
Sunny
32°
4
Sunny
32°
5
Sunny
34°
6
Sunny
32°
7
Sunny
33°
8
Sunny
34°
9
Sunny
33°
10
Sunny
29°
11
Sunny
29°
12
Sunny
29°
13
Sunny
27°
14
Partly cloudy
30°
15
Sunny
34°
16
Sunny
34°
17
Sunny
32°
18
Patchy rain possible
29°
19
Sunny
29°
20
Patchy rain possible
28°
21
Patchy rain possible
29°
22
Patchy rain possible
28°
23
Patchy rain possible
24°
24
Sunny
30°
25
Sunny
31°
26
Sunny
30°
27
Sunny
28°
28
Partly cloudy
28°
29
Partly cloudy
27°
30
Sunny
27°

Temperatures trend during September in Los Angeles

See the weather trend as well as the moving average line

September weather in Los Angeles day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
Sept. 1 Sunny
Sunny
 31° /20° 0 mm 8
Sept. 2 Sunny
Sunny
 31° /21° 0 mm 8
Sept. 3 Sunny
Sunny
 32° /21° 0 mm 8
Sept. 4 Sunny
Sunny
 32° /21° 0.1 mm 8
Sept. 5 Sunny
Sunny
 34° /21° 0 mm 8
Sept. 6 Sunny
Sunny
 32° /21° 0 mm 8
Sept. 7 Sunny
Sunny
 33° /21° 0 mm 8
Sept. 8 Sunny
Sunny
 34° /22° 0 mm 8
Sept. 9 Sunny
Sunny
 33° /23° 2.5 mm 8
Sept. 10 Sunny
Sunny
 29° /21° 0.3 mm 7
Sept. 11 Sunny
Sunny
 29° /20° 0.1 mm 7
Sept. 12 Sunny
Sunny
 29° /19° 0.2 mm 7
Sept. 13 Sunny
Sunny
 27° /19° 0 mm 6
Sept. 14 Partly cloudy
Partly cloudy
 30° /18° 0 mm 1.9
Sept. 15 Sunny
Sunny
 34° /19° 0 mm 1.9
Sept. 16 Sunny
Sunny
 34° /23° 0 mm 1.9
Sept. 17 Sunny
Sunny
 32° /24° 0 mm 1.9
Sept. 18 Patchy rain possible
Patchy rain possible
 29° /23° 0.2 mm 0
Sept. 19 Sunny
Sunny
 29° /22° 0 mm 6
Sept. 20 Patchy rain possible
Patchy rain possible
 28° /21° 0.8 mm 5
Sept. 21 Patchy rain possible
Patchy rain possible
 29° /22° 0.2 mm 5
Sept. 22 Patchy rain possible
Patchy rain possible
 28° /22° 0.2 mm 5
Sept. 23 Patchy rain possible
Patchy rain possible
 24° /21° 4.5 mm 5
Sept. 24 Sunny
Sunny
 30° /22° 0 mm 7
Sept. 25 Sunny
Sunny
 31° /25° 0 mm 7
Sept. 26 Sunny
Sunny
 30° /23° 0 mm 7
Sept. 27 Sunny
Sunny
 28° /17° 0 mm 7
Sept. 28 Partly cloudy
Partly cloudy
 28° /17° 0 mm 7
Sept. 29 Partly cloudy
Partly cloudy
 27° /17° 0 mm 7
Sept. 30 Sunny
Sunny
 27° /16° 0.5 mm 7
Next
Important Notice
Our weather forecast for Los Angeles 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 Los Angeles forecast closer to your planned date for the most up-to-date weather information.
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Los Angeles in September - FAQ

What are the expected maximum and minimum temperatures in Los Angeles during September?
During September, expect a variety of temperatures with highs around 29° and lows near 19°, suitable for diverse activities and preferences.
How much rainfall should be expected in Los Angeles during September?
Rainfall in Los Angeles 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 Los Angeles during September?
The average wind speed in Los Angeles during September is 16 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Los Angeles

Explore the daily rainfall trends and prepare for Los Angeless September weather 💧

UV exposure in Los Angeles during September

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

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Get accurate weather forecasts for Los Angeles, located at latitude 34.052 and longitude -118.244. Stay updated with localized weather information tailored for Los Angeles.

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