Long Beach Weather: September
 |
Average Day Temperature: | 88.5°F |
|
Average Night Temperature: | 77.1°F |
|
Sea Water Temperature: | 87.3°F |
|
Number of Sunny Days: | 14 days |
| Sunshine Hours: | 11.9 - 12.8 hours | |
|
Number of Rainy Days: | 4 days |
| Precipitation Totals: | 2.8 in | |
| detailed information | ||
forecast
| Long Beach |
Temperature
| Long Beach |
Air Temperature in September, °F
The highest day temperature in September 2025 was 98°F. The lowest night temperature was 69°F. The average values for day and night temperatures during September were 94.3°F и 76.4°F respectivly.
Long Beach Water Sea Temperature in September, °F
The average sea surface temperature in September 2025 for Long Beach was 87.8°F. The maximum and minimum values were 85.2°F and 89.6°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 Long Beach is 2.8 in. It makes september the most rainy month of the year.
The average wind speed in September is 7.0 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 Long Beach in September is 7.9 hours.
Long Beach on the Weather Map
| Chicago |  |
-2 |
| Hawaii | |
+78 |
| Honolulu | |
+78 |
| Houston | |
+44 |
| 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 |
| 0300 |  |
48°F | S 11 mph |
| 0600 | |
48°F | S 8 mph |
| 0900 | |
48°F | S 8 mph |
| 1200 | |
52°F | S 9 mph |
| 1500 | |
56°F | SE 4 mph |
| 1800 |  |
54°F | SW 7 mph |
| 2100 | |
52°F | S 5 mph |
| 0000 | |
50°F | S 2 mph |