Long Beach
September
Weather in Long Beach for September 2025
Your guide to Long Beach weather in September - trends and predictions
In general, the average temperature in Long Beach at the beginning of September is 27.4 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 23.7 °F by the end of September.
With an average of 2 rainy days, Long Beach experiences minimal rainfall in September.
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28
Dry days
2
Rainy days
0
Snow days
24°/17°
Temperatures
16 km/h
Avg max wind
71 %
Avg humidity
Long Beach in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  26° | 2 27° | 3  26° | 4 26° | 5 28° | 6 29° | 7  30° |
| 8  33° | 9 32° | 10 28° | 11 26° | 12 25° | 13 24° | 14 23° |
| 15 22° | 16 22° | 17 23° | 18 22° | 19 22° | 20 22° | 21  21° |
| 22 24° | 23 25° | 24 24° | 25 24° | 26 23° | 27 24° | 28 23° |
| 29 24° | 30 24° |
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Temperatures trend during September in Long Beach
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 | Cloudy | 26° /19° | 0 mm | 7 | |
| Sept. 2 | Cloudy | 27° /20° | 0 mm | 7 | |
| Sept. 3 | Overcast | 26° /20° | 0 mm | 6 | |
| Sept. 4 | Overcast | 26° /19° | 0 mm | 6 | |
| Sept. 5 | Overcast | 28° /20° | 0 mm | 7 | |
| Sept. 6 | Overcast | 29° /21° | 0 mm | 7 | |
| Sept. 7 | Mist | 30° /20° | 0 mm | 7 | |
| Sept. 8 | Partly cloudy | 33° /21° | 0 mm | 8 | |
| Sept. 9 | Partly cloudy | 32° /23° | 0 mm | 8 | |
| Sept. 10 | Cloudy | 28° /21° | 0 mm | 7 | |
| Sept. 11 | Cloudy | 26° /19° | 0 mm | 6 | |
| Sept. 12 | Mist | 25° /18° | 0 mm | 6 | |
| Sept. 13 | Mist | 24° /18° | 0 mm | 6 | |
| Sept. 14 | Overcast | 23° /17° | 0 mm | 6 | |
| Sept. 15 | Overcast | 22° /17° | 0 mm | 5 | |
| Sept. 16 | Mist | 22° /17° | 0.1 mm | 5 | |
| Sept. 17 | Mist | 23° /16° | 0 mm | 6 | |
| Sept. 18 | Overcast | 22° /16° | 0 mm | 5 | |
| Sept. 19 | Overcast | 22° /16° | 0 mm | 5 | |
| Sept. 20 | Overcast | 22° /16° | 0 mm | 5 | |
| Sept. 21 | Patchy rain possible | 21° /16° | 0.2 mm | 5 | |
| Sept. 22 | Overcast | 24° /16° | 0 mm | 6 | |
| Sept. 23 | Mist | 25° /16° | 0 mm | 6 | |
| Sept. 24 | Mist | 24° /15° | 0 mm | 6 | |
| Sept. 25 | Mist | 24° /15° | 0 mm | 6 | |
| Sept. 26 | Overcast | 23° /15° | 0 mm | 5 | |
| Sept. 27 | Mist | 24° /15° | 0 mm | 6 | |
| Sept. 28 | Mist | 23° /15° | 0 mm | 5 | |
| Sept. 29 | Overcast | 24° /15° | 0 mm | 6 | |
| Sept. 30 | Light rain shower | 24° /15° | 0.7 mm | 6 | |
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Important Notice
Our weather forecast for Long Beach 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 Long Beach forecast closer to your planned date for the most up-to-date weather information.
Long Beach in September - FAQ
What are the expected maximum and minimum temperatures in Long Beach during September?
During September, expect a variety of temperatures with highs around 24° and lows near 17°, suitable for diverse activities and preferences.
How much rainfall should be expected in Long Beach during September?
Rainfall in Long Beach 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 Long Beach during September?
The average wind speed in Long Beach during September is 16 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Long Beach
Explore the daily rainfall trends and prepare for Long Beachs September weather 💧
UV exposure in Long Beach during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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