Port St. Lucie Weather: September
 |
Average Day Temperature: | 89.5°F |
|
Average Night Temperature: | 81.5°F |
|
Sea Water Temperature: | 88.3°F |
|
Number of Sunny Days: | 6 days |
| Sunshine Hours: | 11.9 - 12.7 hours | |
|
Number of Rainy Days: | 4 days |
| Precipitation Totals: | 2.4 in | |
| detailed information | ||
forecast
| Port St. Lucie |
Temperature
| Port St. Lucie |
Air Temperature in September, °F
The highest day temperature in September 2025 was 94°F. The lowest night temperature was 76°F. The average values for day and night temperatures during September were 89.8°F и 79.6°F respectivly.
Port St. Lucie Water Sea Temperature in September, °F
The average sea surface temperature in September 2025 for Port St. Lucie was 88.1°F. The maximum and minimum values were 86.8°F and 89.6°F respectively.
Most of the days in September are gloomy but you can also expect sunny days.
Precipitation Totals in September, in
Precipitation total in September for Port St. Lucie is 2.4 in. It makes september the most rainy month of the year.
The average wind speed in September is 8.2 mph. It makes September one of the most windless months of the year for Port St. Lucie.
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 Port St. Lucie in September is 5.8 hours.
Port St. Lucie on the Weather Map
| Chicago |  |
-2 |
| Hawaii | |
+78 |
| Honolulu | |
+78 |
| Houston | |
+44 |
| Las Vegas |  |
+40 |
| Los Angeles | |
+52 |
| Maui | |
+72 |
| Miami | |
+72 |
| Miami Beach |  |
+80 |
| New York | |
+18 |
| San Diego | |
+54 |
| San Francisco | |
+46 |
| Sarasota | |
+62 |
| Tampa | |
+62 |
| Washington | |
+28 |
| 0600 |  |
66°F | NW 7 mph |
| 0900 |  |
72°F | N 6 mph |
| 1200 | |
76°F | N 9 mph |
| 1500 |  |
84°F | NE 7 mph |
| 1800 | |
82°F | NE 3 mph |
| 2100 |  |
78°F | NE 1 mph |
| 0000 | |
72°F | NE 5 mph |
| 0300 | |
68°F | E 6 mph |