Long Beach in September
Find out everything about the water temperature in Long Beach in September. Average, minimum and maximum recorded temperatures as well as daily temperature in September for the last two years. Compare the current month's sea temperature data with other months of the year.
Water temperature in September
Minimum:
69.9 °F
Average:
76.9 °F
Maximum:
85.0 °F
Sea water temperature in Long Beach in September
In the city of Long Beach, the month of September is a great time for swimming. The minimum recorded temperature during this month was 69.9°F on September 27, 2020, with an average temperature being 76.9°F and a maximum temperature reaching 85.0°F on September 6, 2018.
| Date | 10 years average | 2024 | 2023 |
|---|---|---|---|
| Sep 1 | 80.3°F | 78.9°F | 79.6°F |
| Sep 2 | 80.0°F | 79.1°F | 78.6°F |
| Sep 3 | 79.6°F | 78.7°F | 78.1°F |
| Sep 4 | 79.7°F | 77.9°F | 79.4°F |
| Sep 5 | 79.6°F | 77.3°F | 78.9°F |
| Sep 6 | 79.4°F | 76.2°F | 79.3°F |
| Sep 7 | 79.1°F | 75.6°F | 80.5°F |
| Sep 8 | 78.9°F | 75.0°F | 80.3°F |
| Sep 9 | 78.9°F | 75.4°F | 80.1°F |
| Sep 10 | 78.4°F | 74.3°F | 80.3°F |
| Sep 11 | 78.1°F | 73.8°F | 80.8°F |
| Sep 12 | 77.8°F | 74.7°F | 81.3°F |
| Sep 13 | 77.7°F | 75.8°F | 80.7°F |
| Sep 14 | 77.5°F | 75.2°F | 80.7°F |
| Sep 15 | 77.3°F | 75.2°F | 80.7°F |
| Sep 16 | 76.9°F | 75.3°F | 78.7°F |
| Sep 17 | 76.5°F | 74.8°F | 78.2°F |
| Sep 18 | 76.5°F | 74.6°F | 77.0°F |
| Sep 19 | 76.2°F | 74.2°F | 75.6°F |
| Sep 20 | 76.1°F | 73.9°F | 75.8°F |
| Sep 21 | 75.9°F | 75.0°F | 75.9°F |
| Sep 22 | 75.4°F | 74.3°F | 75.4°F |
| Sep 23 | 75.3°F | 74.8°F | 74.7°F |
| Sep 24 | 74.8°F | 74.3°F | 74.1°F |
| Sep 25 | 74.1°F | 73.7°F | 72.8°F |
| Sep 26 | 73.7°F | 72.9°F | 71.9°F |
| Sep 27 | 73.5°F | 73.0°F | 71.6°F |
| Sep 28 | 73.3°F | 73.1°F | 71.4°F |
| Sep 29 | 73.0°F | 74.1°F | 70.7°F |
| Sep 30 | 72.9°F | 74.2°F | 70.5°F |
In Long Beach, the months June through September offer comfortable swimming conditions, which amounts to 106 swimming days.
The warmest water in Long Beach was recorded on August 17, 2016, reaching a 85.7°F. While the coldest temperature occurred on February 20, 2015, dipping to 32.0°F. The average readings by season are 42.0°F in Winter, 53.3°F in Spring, 78.6°F in Summer, and 67.2°F in Autumn.
September's average temperature is a slight drop from August's average of 81.1°F. In October, the temperature is expected to decrease further, potentially averaging around 67.8°F.
