St. Petersburg Weather: September
 |
Average Day Temperature: | 89.5°F |
|
Average Night Temperature: | 83.0°F |
|
Sea Water Temperature: | 89.0°F |
|
Number of Sunny Days: | 8 days |
| Sunshine Hours: | 11.9 - 12.7 hours | |
|
Number of Rainy Days: | 4 days |
| Precipitation Totals: | 1.8 in | |
| detailed information | ||
forecast
| St. Petersburg |
Temperature
| St. Petersburg |
Air Temperature in September, °F
The highest day temperature in September 2025 was 98°F. The lowest night temperature was 76°F. The average values for day and night temperatures during September were 91.2°F и 79.4°F respectivly.
St. Petersburg Water Sea Temperature in September, °F
The average sea surface temperature in September 2025 for St. Petersburg was 87.9°F. The maximum and minimum values were 85.4°F and 90.4°F respectively.
Most of the days in September are cloudy but you can also expect sunny or gloomy days.
Precipitation Totals in September, in
Precipitation total in September for St. Petersburg is 1.8 in. It makes september one of the most rainy months of the year.
The average wind speed in September is 9.6 mph. It makes September one of the most windless months of the year for St. Petersburg.
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 St. Petersburg in September is 6.6 hours.
St. Petersburg on the Weather Map
| Boston |  |
+92 |
| Chicago | |
+86 |
| Hawaii |  |
+80 |
| Houston |  |
+80 |
| Las Vegas | |
+120 |
| Los Angeles | |
+106 |
| Maui |  |
+76 |
| Miami | |
+96 |
| Myrtle Beach | |
+96 |
| New York | |
+110 |
| San Diego | |
+96 |
| San Francisco | |
+76 |
| Santa Monica | |
+84 |
| Sarasota | |
+102 |
| Tampa | |
+100 |
| 1800 |  |
96°F | E 13 mph |
| 2100 |  |
92°F | SE 14 mph |
| 0000 |  |
90°F | SE 9 mph |
| 0300 | |
90°F | SE 10 mph |
| 0600 | |
88°F | SE 9 mph |
| 0900 | |
90°F | S 9 mph |
| 1200 |  |
92°F | SE 7 mph |
| 1500 | |
94°F | SE 12 mph |