Fort Myers Beach weather in September 2025

Expect 90°F daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Fort Myers Beach in September. Check more long-term weather averages for Fort Myers Beach in September before you book your next holiday to Florida in 2025/2026.

  • 90°F maximum daytime temperature in September in Fort Myers Beach90
    90°F max day temperature
  • 8 hours of sunshine per day
  • 14 days with some rainfall in September in Fort Myers Beach14
    14 days with some rainfall
  • 73°F minimum night-time temperature in September in Fort Myers Beach73
    73°F min night temperature
  • 12 hours of daylight per day in September in Fort Myers Beach12
    12 hours of daylight per day
  • Very high heat & humidity in September in Fort Myers BeachVH
    Very High heat & humidity
  • 8.0 inches monthly rainfall in September in Fort Myers Beach8.0
    8.0 inches of monthly rainfall
  • UV (maximum) index 10 (Very High) in September in Fort Myers Beach10
    10 (Very High) UV index
  • 84°F sea temperature in September in Fort Myers Beach84
    84°F sea temperature

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The September weather guide for Florida (Fort Myers Beach) 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.

Metric (°C)  |  Imperial (°F)

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How hot is it in Fort Myers Beach in September?

Daytime temperatures usually reach 90°F in Fort Myers Beach in September with very high heat and humidity, falling to 73°F at night.

How sunny is it in Fort Myers Beach in September?

There are normally 8 hours of bright sunshine each day in Fort Myers Beach in September - that's 68% of daylight hours.

How warm is the sea around Fort Myers Beach in September?

The average sea temperature around Fort Myers Beach in September is 84°F.

Does it rain in Fort Myers Beach in September?

There are usually 14 days with some rain in Fort Myers Beach in September and the average monthly rainfall is 8.0 inches.

What is the chance of a hurricane in Fort Myers Beach in September?

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

Fort Myers Beach September sunrise & sunset times

Browse the sunrise and sunset times for Fort Myers Beach in September 2025. Select a month to view Fort Myers Beach sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:08 18:47
Monday, 15th September 2025 06:14 18:32
Tuesday, 30th September 2025 06:20 18:15

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