Temperature for September
In Fort Myers, FL during September the average high temperature is 90.6°F. The hottest day on record was September 11, 1989 when the temperature hit 106.0°F.
Precipitation for September
In September the average monthly rainfall in Fort Myers, FL is 6.92 inches with rain usually falling on between 13 and 14 days. 1944 was the driest September with only 0.00 inches of rain falling, and 2003 was the wettest September with 17.21 inches of rain. The wettest single day in September was 8 September 1995 when 7.01 inches of rain fell.
There are thunderstorms on between 11 and 12 days in September.