Best year time to visit Key West

General weather information about Key West

Average annual temperature is 26.1 °C

Absolute maximum temperature: 31.9 °C

Absolute minimum temperature: 14.3 °C

Number of sunny days: 135

Number of rainy days: 230

Number of snow days:

Average annual precipitation: 923 mm

Look at detailed online map of Key West

* Weather data for Key West United States is based on climate observations for 2023 year

Key West air temperature forecast for each month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Absolute maximum temperature (°C) 25.1 26.4 26.8 28.4 29.2 30.4 31.7 31.9 30.8 30.7 27.6 26.6
Average daytime temperature (°C) 23.3 24.9 25.2 26.5 27.2 29.1 30.7 30.6 29.7 28.1 26.1 23.8
Average temperature (°C) 22.3 24 24.3 25.6 26.3 28 29.6 29.6 28.7 27 25.1 22.7
Average night temperature (°C) 21.1 23.1 23.5 24.5 25.2 26.3 28.2 28.3 27.2 25.9 24.2 21.7
Absolute minimum temperature (°C) 14.3 19.2 19.1 21.8 22.4 23.3 26 26.1 23.9 21.9 20.5 16.9

Key West monthly weather indicators

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daylight maximum duration (h) 11 11.6 12.4 13.1 13.6 13.7 13.6 13.3 12.6 11.9 11.2 10.7
Daylight mean duration (h) 10.8 11.3 12 12.7 13.3 13.6 13.5 13 12.3 11.6 11 10.7
Daylight minimum duration (h) 10.7 11.1 11.7 12.4 13.1 13.6 13.3 12.7 12 11.3 10.7 10.6
Sunshine mean duration (h) 9.8 10.4 10.5 11.4 12.3 12.1 12.1 11.1 10 10.2 9.6 7.4
Precipitation (mm) 5 11 40 79 65 105 92 149 107 53 78 139
Sunny days 21 16 17 10 15 7 9 4 3 7 13 13
Rainy days 10 12 14 20 16 23 22 27 27 24 17 18

Key West - weather forecast by months

January February March April May June July August September October November December

Best time to visit Key West:

The largest precipitation sum in Key West is at

  • June — 105(mm)
  • August — 149(mm)
  • September — 107(mm)
  • December — 139(mm)

Weather forecast in the closest to Key West admin centers