Key West weather in October 2025

Expect 84°F daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Key West in October. Check more long-term weather averages for Key West in October before you book your next holiday to Florida in 2025/2026.

  • 84°F maximum daytime temperature in October in Key West84
    84°F max day temperature
  • 8 hours of sunshine per day
  • 11 days with some rainfall in October in Key West11
    11 days with some rainfall
  • 73°F minimum night-time temperature in October in Key West73
    73°F min night temperature
  • 12 hours of daylight per day in October in Key West12
    12 hours of daylight per day
  • High heat & humidity in October in Key WestH
    High heat & humidity
  • 4.5 inches monthly rainfall in October in Key West4.5
    4.5 inches of monthly rainfall
  • UV (maximum) index 9 (Very High) in October in Key West9
    9 (Very High) UV index
  • 82°F sea temperature in October in Key West82
    82°F sea temperature

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The October weather guide for Florida (Key West) 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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More about Florida

How hot is it in Key West in October?

Daytime temperatures usually reach 84°F in Key West in October with high heat and humidity, falling to 73°F at night.

How sunny is it in Key West in October?

There are normally 8 hours of bright sunshine each day in Key West in October - that's 71% of daylight hours.

How warm is the sea around Key West in October?

The average sea temperature around Key West in October is 82°F.

Does it rain in Key West in October?

There are usually 11 days with some rain in Key West in October and the average monthly rainfall is 4.5 inches.

What is the chance of a hurricane in Key West in October?

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

Key West October sunrise & sunset times

Browse the sunrise and sunset times for Key West in October 2025. Select a month to view Key West sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st October 2025 06:19 18:14
Thursday, 16th October 2025 06:26 17:59
Friday, 31st October 2025 06:34 17:48

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