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:
58.6 °F
Average:
61.5 °F
Maximum:
64.7 °F
Sea water temperature in Long Beach in September
In the city of Long Beach, the month of September is somewhat too cool for swimming. The minimum recorded temperature during this month was 58.6°F on September 28, 2018, with an average temperature being 61.5°F and a maximum temperature reaching 64.7°F on September 18, 2023.
| Date | 10 years average | 2024 | 2023 |
|---|---|---|---|
| Sep 1 | 61.7°F | 61.5°F | 62.3°F |
| Sep 2 | 61.5°F | 61.3°F | 62.1°F |
| Sep 3 | 61.5°F | 61.3°F | 62.9°F |
| Sep 4 | 61.4°F | 61.7°F | 62.3°F |
| Sep 5 | 61.4°F | 61.4°F | 62.0°F |
| Sep 6 | 61.4°F | 62.3°F | 61.8°F |
| Sep 7 | 61.5°F | 62.1°F | 63.1°F |
| Sep 8 | 61.4°F | 62.2°F | 62.9°F |
| Sep 9 | 61.2°F | 60.4°F | 62.4°F |
| Sep 10 | 61.2°F | 61.0°F | 62.4°F |
| Sep 11 | 61.2°F | 60.4°F | 61.6°F |
| Sep 12 | 61.1°F | 60.1°F | 61.5°F |
| Sep 13 | 61.3°F | 60.5°F | 61.7°F |
| Sep 14 | 61.4°F | 61.2°F | 62.7°F |
| Sep 15 | 61.4°F | 59.9°F | 63.1°F |
| Sep 16 | 61.7°F | 61.8°F | 62.8°F |
| Sep 17 | 61.7°F | 61.5°F | 62.5°F |
| Sep 18 | 61.9°F | 61.7°F | 64.7°F |
| Sep 19 | 61.8°F | 61.7°F | 64.1°F |
| Sep 20 | 61.7°F | 60.6°F | 64.3°F |
| Sep 21 | 61.5°F | 61.9°F | 63.9°F |
| Sep 22 | 61.6°F | 62.7°F | 63.8°F |
| Sep 23 | 61.5°F | 61.7°F | 63.8°F |
| Sep 24 | 61.4°F | 61.2°F | 63.5°F |
| Sep 25 | 61.3°F | 62.1°F | 63.3°F |
| Sep 26 | 61.3°F | 61.8°F | 63.7°F |
| Sep 27 | 61.4°F | 61.7°F | 63.4°F |
| Sep 28 | 61.7°F | 61.7°F | 63.6°F |
| Sep 29 | 61.9°F | 61.8°F | 63.3°F |
| Sep 30 | 62.1°F | 61.8°F | 64.1°F |
In an average year, Long Beach offers no days when the water temperature is warm enough to swim comfortably.
The warmest water in Long Beach was recorded on February 23, 2016, reaching a 75.6°F. While the coldest temperature occurred on August 20, 2022, dipping to 57.5°F. The average readings by season are 70.4°F in Winter, 69.8°F in Spring, 62.5°F in Summer, and 63.5°F in Autumn.
The average temperature in September is slightly warmer than August's average of 60.8°F. And in October, the temperature is expected to rise further, potentially reaching an average of 63.4°F.