Treasure Island weather in September 2021

Get the latest coronavirus (COVID-19) updates for the USA with current travel advice, statistics and online resources.

  • 32°C maximum daytime temperature in September in Treasure Island32
    32°C max day temperature
  • 8 hours of sunshine per day
  • 12 days with some rainfall in September in Treasure Island12
    12 days with some rainfall
  • 23°C minimum night-time temperature in September in Treasure Island23
    23°C min night temperature
  • 12 hours of daylight per day in September in Treasure Island12
    12 hours of daylight per day
  • Very high heat & humidity in September in Treasure IslandVH
    Very High heat & humidity
  • 165 mm monthly rainfall in September in Treasure Island165
    165 mm of monthly rainfall
  • UV (maximum) index 10 (Very High) in September in Treasure Island10
    10 (Very High) UV index
  • 29°C sea temperature in September in Treasure Island29
    29°C sea temperature

Recommended for Florida

  • Top deals & discounts
  • Treasure Island weather overview
  • Treasure Island climate averages by month
  • More destinations
  • Best time to go to Treasure Island
  • Treasure Island 5-day weather forecast

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

The September weather guide for Treasure Island, Florida shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

  • Save EXTRA 10% on 3-5* hotels worldwide with Priceline
  • Discount available on Pay Now & Express Deal Hotels
  • Book hotels for 2 nights or more. Not combinable
Show discount codeShow discount code ******020

Expires at 23:59 on Monday 30th Nov 2020 · View all Priceline offers

PricelineHotel deal finder

How hot is it in Treasure Island in September?

Daytime temperatures usually reach 32°C in Treasure Island in September with very high heat and humidity, falling to 23°C at night.

How sunny is it in Treasure Island in September?

There are normally 8 hours of bright sunshine each day in Treasure Island in September - that's 62% of daylight hours.

How warm is the sea around Treasure Island in September?

The average sea temperature around Treasure Island in September is 29°C.

Does it rain in Treasure Island in September?

There are usually 12 days with some rain in Treasure Island in September and the average monthly rainfall is 165mm.

What is the chance of a hurricane in Treasure Island in September?

On average 1.1 days in September in Treasure Island are likely to be affected by the passage of one or more tropical storms.

Treasure Island sunrise & sunset times for September 2021

Browse the sunrise & sunset times for Treasure Island in September 2021. Select a month to view Treasure Island sunrise & sunset times for the next twelve months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st September 2021 07:10 19:51
Wednesday, 15th September 2021 07:16 19:35
Thursday, 30th September 2021 07:23 19:18
  • Save EXTRA 10% on 3-5* hotels worldwide with Priceline
  • Discount available on Pay Now & Express Deal Hotels
  • Book hotels for 2 nights or more. Not combinable
Show discount codeShow discount code ******020

Expires at 23:59 on Monday 30th Nov 2020 · View all Priceline offers

PricelineHotel deal finder

Metric (°C / mm)  |  Imperial (°F / inches)

Back to top

Discover more about Florida

Where is hot in Florida in September for 2021/2022?

Below are average maximum temperatures at popular destinations in Florida in September. Select a destination to see more weather parameters.

More destinations & map >>

Related posts

Popular travel offers

Top ^

*affiliate links: find out how we are funded and why this helps us remain free to use.