Saint-Louis in September
Find out everything about the water temperature in Saint-Louis 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:
80.8 °F
Average:
83.4 °F
Maximum:
86.2 °F
Sea water temperature in Saint-Louis in September
In the city of Saint-Louis, the month of September is a great time for swimming. The minimum recorded temperature during this month was 80.8°F on September 11, 2018, with an average temperature being 83.4°F and a maximum temperature reaching 86.2°F on September 25, 2023.
| Date | 10 years average | 2023 | 2022 |
|---|---|---|---|
| Sep 1 | 83.2°F | 84.5°F | 83.3°F |
| Sep 2 | 82.9°F | 83.5°F | 83.9°F |
| Sep 3 | 83.2°F | 83.5°F | 83.8°F |
| Sep 4 | 83.1°F | 83.5°F | 83.7°F |
| Sep 5 | 83.3°F | 83.0°F | 83.5°F |
| Sep 6 | 83.6°F | 84.3°F | 84.0°F |
| Sep 7 | 83.4°F | 84.3°F | 83.9°F |
| Sep 8 | 83.3°F | 84.2°F | 83.3°F |
| Sep 9 | 83.8°F | 85.2°F | 83.5°F |
| Sep 10 | 83.4°F | 84.0°F | 83.3°F |
| Sep 11 | 83.4°F | 83.6°F | 83.4°F |
| Sep 12 | 83.7°F | 83.9°F | 83.3°F |
| Sep 13 | 84.0°F | 83.6°F | 84.5°F |
| Sep 14 | 83.8°F | 83.0°F | 84.6°F |
| Sep 15 | 83.6°F | 83.0°F | 84.4°F |
| Sep 16 | 83.4°F | 83.3°F | 83.7°F |
| Sep 17 | 83.4°F | 82.4°F | 84.1°F |
| Sep 18 | 83.5°F | 82.8°F | 83.8°F |
| Sep 19 | 83.6°F | 82.7°F | 83.6°F |
| Sep 20 | 83.4°F | 82.2°F | 83.3°F |
| Sep 21 | 83.5°F | 84.6°F | 84.0°F |
| Sep 22 | 83.4°F | 84.3°F | 83.8°F |
| Sep 23 | 83.6°F | 86.1°F | 84.5°F |
| Sep 24 | 83.5°F | 85.2°F | 83.9°F |
| Sep 25 | 83.4°F | 86.2°F | 84.0°F |
| Sep 26 | 83.5°F | 84.8°F | 83.6°F |
| Sep 27 | 83.3°F | 85.0°F | 84.2°F |
| Sep 28 | 83.5°F | 85.2°F | 84.0°F |
| Sep 29 | 83.1°F | 84.9°F | 84.0°F |
| Sep 30 | 83.4°F | 85.4°F | 83.8°F |
In Saint-Louis, the months June through November offer comfortable swimming conditions, which amounts to 171 swimming days.
The warmest water in Saint-Louis was recorded on September 25, 2023, reaching a 86.2°F. While the coldest temperature occurred on February 10, 2018, dipping to 59.6°F. The average readings by season are 67.2°F in Winter, 66.2°F in Spring, 78.9°F in Summer, and 80.5°F in Autumn.
In September, the temperature is higher than August's average of 82.3°F and October's average of 82.0°F.