Port Saint Lucie (FL)
September
Weather in Port Saint Lucie, Florida for September 2025
Your guide to Port Saint Lucie weather in September - trends and predictions
Rip Current Statement - See hour by hour.
Until now, September 2025 in Port Saint Lucie is slightly cooler than the historical average by -1.2 °F.
The forecast for the next days in Port Saint Lucie predicts temperatures to be around 31 °F, close to the historical average.
In general, the average temperature in Port Saint Lucie at the beginning of September is 30.6 °F. As the month progressed, temperatures tended to remain steady, reaching an average of 30.6 °F by the end of September.
Port Saint Lucie experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 309.1 mm.
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Temperatures
Rain 🌧️
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2
Dry days
28
Rainy days
0
Snow days
30°/25°
Temperatures
19 km/h
Avg max wind
77 %
Avg humidity
Port Saint Lucie Weather September
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Temperatures trend during September in Port Saint Lucie
See the weather trend as well as the moving average line
September weather in Port Saint Lucie day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Light rain shower | 32° /24° | 7.2 mm | 7 | |
| Sept. 2 |  Overcast | 29° /24° | 2.3 mm | 6 | |
| Sept. 3 | Patchy rain possible | 30° /25° | 9.2 mm | 7 | |
| Sept. 4 | Light rain shower | 31° /25° | 4.3 mm | 7 | |
| Sept. 5 |  Partly cloudy | 30° /25° | 5.4 mm | 7 | |
| Sept. 6 | Overcast | 31° /23° | 23.7 mm | 7 | |
| Sept. 7 |  Thundery outbreaks possible | 31° /23° | 61 mm | 7 | |
| Sept. 8 | Thundery outbreaks possible | 31° /23° | 4 mm | 7 | |
| Sept. 9 | Patchy rain possible | 31° /24° | 17.6 mm | 7 | |
| Sept. 10 | Patchy rain possible | 31° /24° | 9.7 mm | 7 | |
| Sept. 11 |  Mist | 31° /24° | 4.4 mm | 7 | |
| Sept. 12 | Mist | 30° /25° | 5.4 mm | 7 | |
| Sept. 13 |  Cloudy | 30° /24° | 24.3 mm | 7 | |
| Sept. 14 | Light rain shower | 31° /24° | 5.9 mm | 7 | |
| Sept. 15 | Partly cloudy | 31° /24° | 0 mm | 2.3 | |
| Sept. 16 |  Sunny | 33° /25° | 0 mm | 2.2 | |
| Sept. 17 | Cloudy | 30° /25° | 0 mm | 1.4 | |
| Sept. 18 |  Moderate rain | 31° /23° | 16.4 mm | 0.3 | |
| Sept. 19 | Moderate rain | 29° /24° | 18.9 mm | 0 | |
| Sept. 20 | Patchy rain possible | 29° /25° | 2.9 mm | 6 | |
| Sept. 21 | Moderate rain | 30° /26° | 5.7 mm | 6 | |
| Sept. 22 | Patchy rain possible | 31° /25° | 0.4 mm | 6 | |
| Sept. 23 | Patchy rain possible | 32° /26° | 0.1 mm | 6 | |
| Sept. 24 | Patchy rain possible | 31° /26° | 4.1 mm | 6 | |
| Sept. 25 | Moderate rain | 30° /25° | 6.9 mm | 6 | |
| Sept. 26 | Patchy rain possible | 27° /25° | 4.1 mm | 6 | |
| Sept. 27 | Patchy rain possible | 32° /25° | 0.2 mm | 6 | |
| Sept. 28 | Sunny | 31° /21° | 0 mm | 7 | |
| Sept. 29 |  Moderate or heavy rain shower | 31° /24° | 23.1 mm | 7 | |
| Sept. 30 | Moderate or heavy rain shower | 32° /25° | 6 mm | 7 | |
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Important Notice
Our weather forecast for Port Saint Lucie in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Port Saint Lucie forecast closer to your planned date for the most up-to-date weather information.
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Port Saint Lucie in September - FAQ
What are the expected maximum and minimum temperatures in Port Saint Lucie during September?
During September, expect a variety of temperatures with highs around 30° and lows near 25°, suitable for diverse activities and preferences.
How much rainfall should be expected in Port Saint Lucie during September?
Significant rainfall exceeding 309.1 mm is expected in Port Saint Lucie during September, occurring over more than 28 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Port Saint Lucie during September?
The average wind speed in Port Saint Lucie during September is 19 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Port Saint Lucie
Explore the daily rainfall trends and prepare for Port Saint Lucies September weather 💧
UV exposure in Port Saint Lucie during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Where is Port Saint Lucie?Get accurate weather forecasts for Port Saint Lucie, located at latitude 27.294 and longitude -80.35. Stay updated with localized weather information tailored for Port Saint Lucie.
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