Key West weather in October 2019

29
29°C max day temperature
8
8 hours of sunshine per day
11
11 days with some rainfall
23
23°C min night temperature
12
12 hours of daylight per day
H
High heat & humidity
115
115 mm of monthly rainfall
9
9 (Very High) UV index
28
28°C sea temperature

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

The October weather guide for Key West, 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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Metric (°C / mm) | Imperial (°F / inches)

Guide to Key West weather in October

The average maximum daytime temperature in Key West in October is a warm 29°C (84°F) with high heat & humidity. The average night-time temperature is usually a warm 23°C (73°F). There are usually 8 hours of bright sunshine each day, which represents 71% of the 12 hours of daylight.

Expect 115mm (4.5 inches) of rainfall across the whole of October with 11 days with some rain falling. Maximum UV levels will be very high (9 UV index) at midday when the skies are clear.

The average sea temperature in and around Key West in October is 28°C (82°F).