Water temperature in Apalachicola (FL) in September
Is it warm enough to swim in Apalachicola in September? Average water temperature in Apalachicola in September is 83.7°F and therefore suitable for comfortable swimming. The warmest sea in Apalachicola in September is 87.1°F, and the coldest is 78.6°F. Average high air temperature in Apalachicola in September is 89°F, and average low temperature is 71°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Apalachicola
Changes water temperature in Apalachicola in September 2025, 2024
To get an accurate forecast for the water temperature in Apalachicola for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Apalachicola, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of September.
You can choose any other years:
| Day | 2025 | 2024 | Min | Max |
|---|---|---|---|---|
| September 1 | 84°F | 86.9°F | 82.2°F | 87.1°F |
| September 2 | 83.8°F | 86.4°F | 82.2°F | 86.9°F |
| September 3 | 82.8°F | 87.1°F | 82.2°F | 87.1°F |
| September 4 | 82.8°F | 86.7°F | 82.4°F | 86.7°F |
| September 5 | 83.8°F | 86.4°F | 82.8°F | 86.9°F |
| September 6 | 84.2°F | 86.2°F | 83.1°F | 86.7°F |
| September 7 | 85.1°F | 85.8°F | 82.8°F | 86.9°F |
| September 8 | 85.1°F | 85.5°F | 82.8°F | 86.5°F |
| September 9 | 83.3°F | 85.5°F | 82.8°F | 86.7°F |
| September 10 | 83.1°F | 85.1°F | 82.8°F | 86.4°F |
| September 11 | 82.8°F | 85.1°F | 82.4°F | 86.4°F |
| September 12 | 83.1°F | 84.4°F | 82.2°F | 86.4°F |
| September 13 | 83.1°F | 83.1°F | 81.7°F | 86.4°F |
| September 14 | 81.3°F | 81.9°F | 80.8°F | 86.2°F |
| September 15 | 82°F | 81.9°F | 80.4°F | 86.2°F |
| Day | 2025 | 2024 | Min | Max |
|---|---|---|---|---|
| September 16 | 81.7°F | 81.1°F | 80.8°F | 86.2°F |
| September 17 | 81.9°F | 81.3°F | 81.1°F | 86.7°F |
| September 18 | 82.4°F | 82°F | 81.3°F | 86.9°F |
| September 19 | 82.4°F | 82.6°F | 81.7°F | 86.7°F |
| September 20 | 82.8°F | 83.7°F | 81.7°F | 86.9°F |
| September 21 | 83.7°F | 83.7°F | 81.1°F | 86.5°F |
| September 22 | 84.4°F | 83.8°F | 81°F | 86.4°F |
| September 23 | 84.6°F | 84°F | 81.3°F | 85.5°F |
| September 24 | 85.1°F | 84.4°F | 81.5°F | 85.6°F |
| September 25 | 84.9°F | 84°F | 79.7°F | 85.8°F |
| September 26 | 83.5°F | 79.9°F | 85.6°F | |
| September 27 | 81.9°F | 79.9°F | 85.6°F | |
| September 28 | 78.6°F | 78.6°F | 85.3°F | |
| September 29 | 80.6°F | 79.7°F | 85.3°F | |
| September 30 | 80.1°F | 79.3°F | 85.5°F |
Average water temperature in Apalachicola in September over a decade
| 2015 | 2016 | 2017 | 2018 | 2019 |
| 83.1°F | 84.6°F | 82.8°F | 85.3°F | 84.7°F |
| 2020 | 2021 | 2022 | 2023 | 2024 |
| 83.5°F | 82.8°F | 84°F | 84°F | 83.8°F |
Apalachicola sea state in September
Chart comparing the height of waves in Apalachicola in September over the past years. The red line indicates the height of the waves when swimming in the sea is prohibited. To view the current sea conditions, click on the graph.
Weather and climate in Apalachicola in September
This data display average monthly climate indicators in Apalachicola in September based on our historical weather readings over a period of ten years. In addition to temperature, we include data on the number of rainy and sunny days so you can have all the information about your destination before your trip
- Average HIGH temperature89°F
- Average LOW temperature71°F
- Average rainfall days9 days
- Average rainfall180mm/7.1''
- Average sunshine8.4h
Apalachicola water temperature during other months:
You can also view information about water temperature for other months by clicking on the month button below
