Fort Walton Beach Weather: September
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Average Day Temperature: | 88.4°F |
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Average Night Temperature: | 78.2°F |
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Sea Water Temperature: | 87.8°F |
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Number of Sunny Days: | 15 days |
| Sunshine Hours: | 11.9 - 12.8 hours | |
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Number of Rainy Days: | 3 days |
| Precipitation Totals: | 1.8 in | |
| detailed information | ||
forecast
| Fort Walton Beach |
Temperature
| Fort Walton Beach |
Air Temperature in September, °F
The highest day temperature in September 2025 was 98°F. The lowest night temperature was 73°F. The average values for day and night temperatures during September were 93.1°F и 76.5°F respectivly.
Fort Walton Beach Water Sea Temperature in September, °F
The average sea surface temperature in September 2025 for Fort Walton Beach was 86.9°F. The maximum and minimum values were 86.0°F and 88.2°F respectively.
Most of the days in September are sunny but you can also expect cloudy and gloomy days.
Precipitation Totals in September, in
Precipitation total in September for Fort Walton Beach is 1.8 in. It makes september one of the most rainy months of the year.
The average wind speed in September is 7.5 mph. It makes September one of the most windless months of the year for Fort Walton Beach.
We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Fort Walton Beach in September is 7.8 hours.
| Chicago | ![]() |
-2 |
| Hawaii | ![]() |
+78 |
| Honolulu | ![]() |
+78 |
| Houston | ![]() |
+44 |
| Las Vegas | ![]() |
+40 |
| Los Angeles | ![]() |
+52 |
| Maui | ![]() |
+72 |
| Miami | ![]() |
+72 |
| Miami Beach | ![]() |
+80 |
| New York | ![]() |
+20 |
| San Diego | ![]() |
+54 |
| San Francisco | ![]() |
+46 |
| Sarasota | ![]() |
+62 |
| Tampa | ![]() |
+62 |
| Washington | ![]() |
+28 |
| 0600 | ![]() |
54°F | NE 5 mph |
| 0900 | ![]() |
52°F | SE 9 mph |
| 1200 | ![]() |
52°F | S 9 mph |
| 1500 | ![]() |
52°F | S 11 mph |
| 1800 | ![]() |
54°F | S 9 mph |
| 2100 | ![]() |
54°F | S 6 mph |
| 0000 | ![]() |
52°F | SW 5 mph |
| 0300 | ![]() |
50°F | S 6 mph |
































