Duck Key weather in September 2021

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  • 32°C maximum daytime temperature in September in Duck Key32
    32°C max day temperature
  • 9 hours of sunshine per day
  • 16 days with some rainfall in September in Duck Key16
    16 days with some rainfall
  • 23°C minimum night-time temperature in September in Duck Key23
    23°C min night temperature
  • 12 hours of daylight per day in September in Duck Key12
    12 hours of daylight per day
  • Very high heat & humidity in September in Duck KeyVH
    Very High heat & humidity
  • 210 mm monthly rainfall in September in Duck Key210
    210 mm of monthly rainfall
  • UV (maximum) index 10 (Very High) in September in Duck Key10
    10 (Very High) UV index
  • 29°C sea temperature in September in Duck Key29
    29°C sea temperature

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The September weather guide for Duck Key, 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.

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How hot is it in Duck Key in September?

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

How sunny is it in Duck Key in September?

There are normally 9 hours of bright sunshine each day in Duck Key in September - that's 72% of daylight hours.

How warm is the sea around Duck Key in September?

The average sea temperature around Duck Key in September is 29°C.

Does it rain in Duck Key in September?

There are usually 16 days with some rain in Duck Key in September and the average monthly rainfall is 210mm.

What is the chance of a hurricane in Duck Key in September?

On average less than 1 day in September in Duck Key is likely to be affected by the passage of one or more tropical storms.

Duck Key sunrise & sunset times for September 2021

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st September 2021 07:05 19:42
Wednesday, 15th September 2021 07:10 19:27
Thursday, 30th September 2021 07:15 19:11
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Metric (°C / mm)  |  Imperial (°F / inches)

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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.

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