September weather forecast and climate
Tampa, FL

The Hillsborough River flowing under the bridge in Tampa, Florida, with a beautiful skyline above
The Hillsborough River flowing under the bridge in Tampa, Florida, with a beautiful skyline above
By mid-September, the daily temperatures drop below 86°F (30°C), and the rain also subsides a little. The combination of humidity at a high level of 77.6% and the sea temperature at an average of 84°F (28.9°C) do not make it a comfortable atmosphere for open sea activities.
Add the fact that the ultraviolet index of the sun is at 9, and it cancels out any possibilities of moving around the city during the day in shorts.

What is the temperature in September in Tampa?

The average high-temperature, in September, is 88.9°F (31.6°C), while the average low-temperature is 74.5°F (23.6°C).

What is the average humidity in September in Tampa?

The average relative humidity in September in Tampa is 77.6%.

How many days does it rain in September in Tampa?

In September, in Tampa, Florida, the rain falls for 12.2 days. Throughout September, 5.9" (149mm) of precipitation is accumulated.

How warm is the water in September in Tampa?

In September, the average ocean temperature in Tampa, Florida, is 84.4°F (29.1°C). For any water activity, surface water temperatures between 77°F (25°C) and 84.2°F (29°C) are considered as excellent and extremely pleasant for lengthened periods.

How many hours of daylight does Tampa have in September?

In Tampa, Florida, the average length of the day in September is 12.3h.

How many hours of sunshine does Tampa have in September?

In September, the average sunshine in Tampa is 7.4h.

What is the UV index intensity in September in Tampa?

In Tampa, the average daily maximum UV index in September is 9. A UV Index value of 8 to 10 symbolizes a very high hazard to health from unprotected exposure to the UV radiation.
Average temperature in September - Tampa, FL
  • Average high temperature in September: 88.9°F

The warmest month (with the highest average high temperature) is August (90.2°F).
The month with the lowest average high temperature is January (69.9°F).

  • Average low temperature in September: 74.5°F

The month with the highest average low temperature is August (76.2°F).
The coldest month (with the lowest average low temperature) is January (51.6°F).

Average humidity in September - Tampa, FL
  • Average humidity in September: 77.6%

The month with the highest relative humidity is August (78.4%).
The month with the lowest relative humidity is April (69%).

Average rainfall in September - Tampa, FL
  • Average rainfall in September: 5.9"

The wettest month (with the highest rainfall) is August (7.3").
The driest month (with the lowest rainfall) is April (1.5").

Average rainfall days in September - Tampa, FL
  • Average rainfall days in September: 12.2 days

The month with the highest number of rainy days is August (16 days).
The month with the lowest number of rainy days is April (4.9 days).

Average sea temperature in September - Tampa, FL
  • Average sea temperature in September: 84.4°F

The best month for swimming (with the highest average sea temperature) is August (86.5°F).
The coldest month (with the lowest average sea temperature) is January (64.8°F).

Average daylight in September / Average sunshine in September - Tampa, FL
  • Average daylight in September: 12.3h

The month with the longest days is June (Average daylight: 13.9h).
The month with shortest days is December (Average daylight: 10.4h).

  • Average sunshine in September: 7.4h

The month with most sunshine is May (Average sunshine: 10.1h).
The month with least sunshine is December (Average sunshine: 6.2h).

Average UV index in September - Tampa, FL
  • Average UV index in September: 9

Months with the highest UV index are June, July and August (UV index 11).
The month with the lowest UV index is December (UV index 4).

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