Key West weather in January 2026

Expect 24°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Key West in January based on long-term weather averages. There is usually 6 days with some rainfall and 47 mm of average monthly rainfall in January.

  • 24°C maximum daytime temperature in January in Key West24
    24°C max day temperature
  • 8 hours of sunshine per day
  • 6 days with some rainfall in January in Key West6
    6 days with some rainfall
  • 17°C minimum night-time temperature in January in Key West17
    17°C min night temperature
  • 11 hours of daylight per day in January in Key West11
    11 hours of daylight per day
  • No heat & humidity in January in Key West0
    No heat & humidity
  • 47 mm monthly rainfall in January in Key West47
    47 mm of monthly rainfall
  • UV (maximum) index 6 (High) in January in Key West6
    6 (High) UV index
  • 23°C sea temperature in January in Key West23
    23°C sea temperature

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The January 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 / mm)  |  Imperial (°F / inches)

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More about Florida

How hot is it in Key West in January?

Daytime temperatures usually reach 24°C in Key West in January, falling to 17°C at night.

How sunny is it in Key West in January?

There are normally 8 hours of bright sunshine each day in Key West in January - that's 73% of daylight hours.

How warm is the sea around Key West in January?

The average sea temperature around Key West in January is 23°C.

Does it rain in Key West in January?

There are usually 6 days with some rain in Key West in January and the average monthly rainfall is 47mm.

Key West January sunrise & sunset times

Browse the sunrise and sunset times for Key West in January 2026. Select a month to view Key West sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st January 2026 07:11 17:50
Friday, 16th January 2026 07:13 18:01
Saturday, 31st January 2026 07:09 18:12

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