Los Angeles Weather: September
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Average Day Temperature: | 85.9°F |
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Average Night Temperature: | 71.7°F |
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Sea Water Temperature: | 71.3°F |
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Number of Sunny Days: | 24 days |
| Sunshine Hours: | 11.9 - 12.9 hours | |
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Number of Rainy Days: | 0 days |
| Precipitation Totals: | 0.1 in | |
| detailed information | ||
forecast
| Los Angeles |
Temperature
| Los Angeles |
Air Temperature in September, °F
The highest day temperature in September 2025 was 99°F. The lowest night temperature was 64°F. The average values for day and night temperatures during September were 87.2°F и 70.6°F respectivly.
Los Angeles Water Sea Temperature in September, °F
The average sea surface temperature in September 2025 for Los Angeles was 72.9°F. The maximum and minimum values were 69.4°F and 76.4°F respectively.
Most of the days in September are sunny but you can also expect cloudy and gloomy days.
Precipitation Totals in September, in
Precipitation total in September for Los Angeles is 0.1 in. It makes september one of the least rainy months of the year.
The average wind speed in September is 5.2 mph. This value is relatively stable throughout the year.
We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Los Angeles in September is 10.5 hours.
| Chicago | ![]() |
0 |
| Hawaii | ![]() |
+78 |
| Honolulu | ![]() |
+78 |
| Houston | ![]() |
+46 |
| Las Vegas | ![]() |
+40 |
| Los Angeles | ![]() |
+52 |
| Maui | ![]() |
+72 |
| Miami | ![]() |
+72 |
| Miami Beach | ![]() |
+80 |
| New York | ![]() |
+18 |
| San Diego | ![]() |
+54 |
| San Francisco | ![]() |
+46 |
| Sarasota | ![]() |
+62 |
| Tampa | ![]() |
+62 |
| Washington | ![]() |
+28 |
| 0000 | ![]() |
52°F | S 4 mph |
| 0300 | ![]() |
50°F | S 3 mph |
| 0600 | ![]() |
50°F | SW 2 mph |
| 0900 | ![]() |
52°F | SW 2 mph |
| 1200 | ![]() |
68°F | N 2 mph |
| 1500 | ![]() |
72°F | NE 4 mph |
| 1800 | ![]() |
64°F | NE 5 mph |
| 2100 | ![]() |
60°F | E 2 mph |































