September Weather in Fort Myers Shores, United States

Last updated: June 24, 2025

In September, the average temperature in Fort Myers Shores, United States is a warm 28°C (82°F), with a comfortable minimum of 20°C (69°F) and a sweltering maximum of 35°C (96°F). Expect 186 mm (7.3 in) of precipitation spread over 22 days, resulting in an average humidity of 83%. Be prepared for a tropical experience!

September Temperature in Fort Myers Shores

In September in Fort Myers Shores, the average temperature is 28°C (82°F), with maximums reaching up to 35°C (96°F) and minimums dropping as low as 20°C (69°F). It's a perfect time to enjoy warm weather activities and explore the vibrant surroundings.

September Weather in Fort Myers Shores: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Fort Myers Shores, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Fort Myers Shores, September typically has an average temperature of 28°C (82°F), with highs reaching up to 35°C (96°F) and lows dropping to around 20°C (69°F).

Data source: Temperature data for Fort Myers Shores generated using information from the Copernicus Climate Change Service.

September Precipitation in Fort Myers Shores

In Fort Myers Shores in September, the total precipitation amount reaches 186 mm (7.3 in) over the course of 22 days.

September Precipitation Trends in Fort Myers Shores

The chart displays monthly precipitation patterns in Fort Myers Shores, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Fort Myers Shores, September typically receives around 186 mm (7.3 inches) of precipitation spread over approximately 22 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

September Humidity in Fort Myers Shores

In Fort Myers Shores in September humidity is 83%. With an average temperature of 28°C (82°F), this humidity feels like stepping into a warm, thick blanket, making travel languid and drenched in sweat.

September Average Humidity in Fort Myers Shores

This chart illustrates the average monthly humidity levels in Fort Myers Shores, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Fort Myers Shores is approximately 83%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Fort Myers Shores

In Fort Myers Shores in September, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Fort Myers Shores.

Maximum UV Index Levels in Fort Myers Shores for September

The chart shows the monthly maximum UV Index (UVI) for Fort Myers Shores in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Fort Myers Shores typically reaches 11, which falls under the extreme exposure category.

Data source: Fort Myers Shores September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How September Weather in Fort Myers Shores Compares to Other Months

Weather in Fort Myers Shores varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Fort Myers Shores, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Fort Myers Shores, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	18°C (65°F)	37 mm (1.4 inches)	83%	high
February Weather	21°C (71°F)	44 mm (1.7 inches)	80%	very high
March Weather	22°C (72°F)	22 mm (0.9 inches)	75%	very high
April Weather	25°C (77°F)	51 mm (2.0 inches)	68%	extreme
May Weather	27°C (80°F)	148 mm (5.8 inches)	65%	extreme
June Weather	28°C (82°F)	239 mm (9.4 inches)	73%	extreme
July Weather	28°C (82°F)	278 mm (10.9 inches)	77%	extreme
August Weather	28°C (83°F)	239 mm (9.4 inches)	80%	extreme
September Weather	28°C (82°F)	186 mm (7.3 inches)	83%	extreme
October Weather	26°C (80°F)	88 mm (3.5 inches)	83%	very high
November Weather	22°C (72°F)	46 mm (1.8 inches)	83%	high
December Weather	20°C (68°F)	51 mm (2.0 inches)	84%	moderate