Saint Lucie County (Port Saint Lucie)
September
Weather in Saint Lucie County, Florida for September 2027
Your guide to Saint Lucie County weather in September - trends and predictions
In general, the average temperature in Saint Lucie County at the beginning of September is 30.5 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 29.9 °C by the end of September.
Saint Lucie County experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 701.9 mm.
Is September a good time to visit Saint Lucie County? check out the best time to travel to Saint Lucie County page.
✨ Is September a good time to visit Saint Lucie County? – Ask the AI Weatherman
Temperatures
Rain 🌧️
More
8
Dry days
22
Rainy days
0
Snow days
30°/24°
Temperatures
18 km/h
Avg max wind
79 %
Avg humidity
Saint Lucie County Weather September
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Temperatures trend during September in Saint Lucie County
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September weather in Saint Lucie County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Heavy rain | 31° /25° | 235.8 mm | 7 | |
| Sept. 2 | Heavy rain | 29° /25° | 26.9 mm | 6 | |
| Sept. 3 |  Light rain | 30° /25° | 8 mm | 6 | |
| Sept. 4 |  Moderate rain | 31° /25° | 20.4 mm | 8 | |
| Sept. 5 | Heavy rain | 30° /25° | 33.7 mm | 8 | |
| Sept. 6 | Heavy rain | 32° /24° | 26.4 mm | 8 | |
| Sept. 7 |  Thundery outbreaks possible | 31° /24° | 59.8 mm | 8 | |
| Sept. 8 | Light rain | 31° /24° | 3.1 mm | 7 | |
| Sept. 9 | Moderate rain | 31° /25° | 15.8 mm | 7 | |
| Sept. 10 |  Moderate or heavy rain shower | 31° /25° | 8.4 mm | 6 | |
| Sept. 11 | Moderate rain | 31° /24° | 16.6 mm | 7 | |
| Sept. 12 | Heavy rain | 30° /25° | 30.5 mm | 6 | |
| Sept. 13 | Moderate rain | 30° /25° | 21.3 mm | 6 | |
| Sept. 14 | Light rain | 31° /24° | 4.8 mm | 8 | |
| Sept. 15 | Light rain | 31° /25° | 4.1 mm | 7 | |
| Sept. 16 | Moderate rain | 30° /25° | 10.9 mm | 6 | |
| Sept. 17 | Light rain | 30° /25° | 6.1 mm | 6 | |
| Sept. 18 | Moderate rain | 31° /24° | 17.2 mm | 6 | |
| Sept. 19 | Light rain | 29° /24° | 7.9 mm | 7 | |
| Sept. 20 |  Patchy light rain with thunder | 30° /23° | 11.8 mm | 7 | |
| Sept. 21 | Moderate rain | 29° /24° | 19.5 mm | 6 | |
| Sept. 22 | Moderate rain | 30° /24° | 16.6 mm | 6 | |
| Sept. 23 |  Patchy rain possible | 30° /24° | 2.1 mm | 5 | |
| Sept. 24 | Light rain | 30° /25° | 4.6 mm | 6 | |
| Sept. 25 | Patchy light rain with thunder | 30° /25° | 6.5 mm | 6 | |
| Sept. 26 |  Moderate or heavy rain with thunder | 30° /23° | 27.9 mm | 7 | |
| Sept. 27 | Moderate rain | 30° /24° | 10.1 mm | 8 | |
| Sept. 28 | Moderate or heavy rain with thunder | 30° /23° | 25.2 mm | 6 | |
| Sept. 29 | Moderate rain | 29° /24° | 14 mm | 5 | |
| Sept. 30 | Moderate or heavy rain shower | 31° /24° | 5.9 mm | 6 | |
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Important Notice
Our weather forecast for Saint Lucie County 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 Saint Lucie County forecast closer to your planned date for the most up-to-date weather information.
Change Month
Saint Lucie County in September - FAQ
What are the expected maximum and minimum temperatures in Saint Lucie County during September?
During September, expect a variety of temperatures with highs around 30° and lows near 24°, suitable for diverse activities and preferences.
How much rainfall should be expected in Saint Lucie County during September?
Significant rainfall exceeding 701.9 mm is expected in Saint Lucie County during September, occurring over more than 22 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Saint Lucie County during September?
The average wind speed in Saint Lucie County during September is 18 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Saint Lucie County
Explore the daily rainfall trends and prepare for Saint Lucie Countys September weather 💧
Typically, Saint Lucie County has 22 rainy days in September with a total of 701.9 mm of rainfall.
UV exposure in Saint Lucie County during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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