Tampa Weather in September

September's weather is similar to the rest of summer at Tampa, Florida, except that it's a little less rainy now.

This page gives detailed information on the typical September temperature, precipitation, sun, humidity, wind and storms for Tampa. The numbers here are historical averages based on climate data gathered at the Tampa International Airport, located near Tampa Bay and the city center.

Temperature Weather iconTemperature

90 °F September average high 32 °C
75 °F September average low 24 °C
18 days 90 °F max. or more (32 °C)
2 days 70 °F min. or less (21 °C)

The temperature usually rises every day in September to over 80 degrees Fahrenheit (26 degrees Celsius) in Tampa. Temperatures above 100 °F (38 °C) are not expected here this month.

September does not normally cool down to 60 °F (16 °C).

Rainy Weather iconRain

6.1 in total precipitation 155 mm
13 days of rain

Half the time, Tampa receives 4.1 to 8.0 inches (103 to 204 mm) of rainfall in September. One in four years has drier weather, while another one in four is wetter.

Sunny Weather iconSun

62 % sunshine
5 days clear skies

The sun's rays reach the ground in Tampa during 62 percent of daylight hours on average in September, for a total of 229 hours in the month. Typically on 5 days this month the sky is mainly clear, with at most 30 percent cloud cover.

Sunlight in September at Tampa lasts for 12 hours and 18 minutes a day on average. The longest day of the month is the 1st with 12 hours and 42 minutes of daylight. By the end of the month, the days have shortened to 11:54 from sunrise to sunset. These durations can vary by a minute or two from year to year.

Humid Weather iconHumidity

78 % September average humidity

The relative humidity in Tampa during September usually peaks at 91 percent in the morning then drops to 62 percent by early afternoon.

Local Time1 am4 am7 am10 am1 pm4 pm7 pm10 pm
Humidity % 87 90 91 72 62 63 75 82

Windy Weather iconWind

7.5 mph September wind speed average 12.1 kph

September is less windy than most other months in Tampa.

Stormy Weather iconStorms

4 days rainfall of 0.5 inches (13 mm) or more
11 days with thunderstorms in September
12 % chance a named storm approaches

There's a four percent probability that a hurricane will approach within 100 miles (165 km) of Tampa during September. The chance of a major category 3 to 5 hurricane reaching the area is two percent.


The weather data here are long-term averages provided by the US National Centers for Environmental Information (NCEI). Temperature and precipitation are 1991-2020 normals while humidity and thunderstorms are 1961-1990 normals. The named storm probabilities come from the Atlantic Oceanographic and Meteorological Laboratory, Hurricane Research Division.

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