Santa Monica in September
Find out everything about the water temperature in Santa Monica 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:
63.4 °F
Average:
66.5 °F
Maximum:
72.1 °F
Sea water temperature in Santa Monica in September
In the city of Santa Monica, the month of September is somewhat comfortable for swimming. The minimum recorded temperature during this month was 63.4°F on September 3, 2019, with an average temperature being 66.5°F and a maximum temperature reaching 72.1°F on September 25, 2023.
| Date | 10 years average | 2024 | 2023 |
|---|---|---|---|
| Sep 1 | 65.4°F | 64.9°F | 64.3°F |
| Sep 2 | 65.4°F | 65.3°F | 64.2°F |
| Sep 3 | 65.1°F | 64.5°F | 63.9°F |
| Sep 4 | 65.2°F | 65.8°F | 64.9°F |
| Sep 5 | 65.2°F | 65.0°F | 65.0°F |
| Sep 6 | 65.2°F | 64.9°F | 66.3°F |
| Sep 7 | 65.1°F | 64.7°F | 64.8°F |
| Sep 8 | 65.3°F | 65.9°F | 65.6°F |
| Sep 9 | 65.7°F | 66.7°F | 65.5°F |
| Sep 10 | 66.2°F | 66.7°F | 65.7°F |
| Sep 11 | 66.3°F | 67.3°F | 66.5°F |
| Sep 12 | 66.6°F | 68.9°F | 67.5°F |
| Sep 13 | 66.3°F | 67.5°F | 67.4°F |
| Sep 14 | 66.5°F | 67.4°F | 67.2°F |
| Sep 15 | 66.6°F | 67.3°F | 68.1°F |
| Sep 16 | 66.4°F | 67.0°F | 67.0°F |
| Sep 17 | 66.5°F | 66.7°F | 68.3°F |
| Sep 18 | 66.4°F | 66.7°F | 67.9°F |
| Sep 19 | 66.8°F | 67.6°F | 68.7°F |
| Sep 20 | 66.9°F | 67.4°F | 68.5°F |
| Sep 21 | 67.1°F | 67.2°F | 69.5°F |
| Sep 22 | 67.4°F | 67.6°F | 71.2°F |
| Sep 23 | 67.6°F | 68.3°F | 71.0°F |
| Sep 24 | 67.9°F | 68.5°F | 72.0°F |
| Sep 25 | 67.6°F | 68.0°F | 72.1°F |
| Sep 26 | 67.5°F | 67.2°F | 71.4°F |
| Sep 27 | 67.4°F | 67.1°F | 70.8°F |
| Sep 28 | 67.6°F | 68.9°F | 69.5°F |
| Sep 29 | 67.8°F | 69.4°F | 69.0°F |
| Sep 30 | 67.9°F | 70.0°F | 68.7°F |
In Santa Monica, the months December through April offer comfortable swimming conditions, which amounts to 162 swimming days.
The warmest water in Santa Monica was recorded on February 11, 2024, reaching a 83.2°F. While the coldest temperature occurred on June 14, 2016, dipping to 59.3°F. The average readings by season are 77.8°F in Winter, 74.8°F in Spring, 65.5°F in Summer, and 69.3°F in Autumn.
The average temperature in September is slightly warmer than August's average of 65.0°F. And in October, the temperature is expected to rise further, potentially reaching an average of 69.2°F.