Collier County (Naples)
September
Weather in Collier County, Florida for September 2027
Your guide to Collier County weather in September - trends and predictions
In general, the average temperature in Collier County at the beginning of September is 31 °C. As the month progressed, temperatures tended to slightly decrease, reaching an average of 31 °C by the end of September.
Collier County experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 455.1 mm.
Is September a good time to visit Collier County? check out the best time to travel to Collier County page.
✨ Is September a good time to visit Collier County? – Ask the AI Weatherman
Temperatures
Rain 🌧️
More
8
Dry days
22
Rainy days
0
Snow days
31°/25°
Temperatures
19 km/h
Avg max wind
77 %
Avg humidity
Collier County Weather September
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Temperatures trend during September in Collier County
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September weather in Collier County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Light rain | 31° /25° | 7.4 mm | 7 | |
| Sept. 2 |  Moderate rain | 31° /25° | 17.2 mm | 6 | |
| Sept. 3 | Light rain | 31° /25° | 5.1 mm | 7 | |
| Sept. 4 |  Patchy light rain with thunder | 32° /26° | 14.3 mm | 7 | |
| Sept. 5 |  Heavy rain | 31° /26° | 37 mm | 8 | |
| Sept. 6 | Heavy rain | 30° /25° | 81.8 mm | 7 | |
| Sept. 7 | Moderate rain | 31° /26° | 15.7 mm | 7 | |
| Sept. 8 | Light rain | 32° /25° | 2.6 mm | 6 | |
| Sept. 9 | Moderate rain | 30° /25° | 20.5 mm | 5 | |
| Sept. 10 | Heavy rain | 31° /26° | 37.2 mm | 6 | |
| Sept. 11 | Light rain | 32° /24° | 8.9 mm | 6 | |
| Sept. 12 | Light rain | 30° /25° | 7.1 mm | 7 | |
| Sept. 13 | Moderate rain | 30° /25° | 18 mm | 6 | |
| Sept. 14 |  Patchy rain possible | 31° /25° | 1.4 mm | 7 | |
| Sept. 15 | Patchy rain possible | 31° /26° | 2 mm | 7 | |
| Sept. 16 | Patchy rain possible | 31° /25° | 1.2 mm | 7 | |
| Sept. 17 | Moderate rain | 30° /25° | 24.4 mm | 7 | |
| Sept. 18 |  Thundery outbreaks possible | 31° /25° | 6.2 mm | 8 | |
| Sept. 19 | Moderate rain | 31° /24° | 12.1 mm | 8 | |
| Sept. 20 | Moderate rain | 30° /24° | 10.3 mm | 8 | |
| Sept. 21 | Light rain | 31° /23° | 2.8 mm | 7 | |
| Sept. 22 |  Moderate or heavy rain shower | 31° /25° | 8.8 mm | 6 | |
| Sept. 23 | Moderate rain | 32° /24° | 13.3 mm | 5 | |
| Sept. 24 | Light rain | 33° /24° | 4.4 mm | 6 | |
| Sept. 25 |  Moderate or heavy rain with thunder | 32° /25° | 46.8 mm | 8 | |
| Sept. 26 | Moderate rain | 30° /24° | 11.5 mm | 8 | |
| Sept. 27 | Moderate rain | 29° /25° | 12.6 mm | 7 | |
| Sept. 28 | Moderate rain | 31° /24° | 16.7 mm | 6 | |
| Sept. 29 | Light rain | 31° /24° | 6.7 mm | 6 | |
| Sept. 30 | Patchy rain possible | 31° /24° | 1.1 mm | 6 | |
| Next | |||||
Important Notice
Our weather forecast for Collier 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 Collier County forecast closer to your planned date for the most up-to-date weather information.
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Collier County in September - FAQ
What are the expected maximum and minimum temperatures in Collier County during September?
During September, expect a variety of temperatures with highs around 31° and lows near 25°, suitable for diverse activities and preferences.
How much rainfall should be expected in Collier County during September?
Significant rainfall exceeding 455.1 mm is expected in Collier 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 Collier County during September?
The average wind speed in Collier County during September is 19 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Collier County
Explore the daily rainfall trends and prepare for Collier Countys September weather 💧
Typically, Collier County has 22 rainy days in September with a total of 455.1 mm of rainfall.
UV exposure in Collier County during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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