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Get the monthly weather forecast for Key West, FL, including daily high/low, historical averages, to help you plan ahead.
Key West, Florida - Winter. January weather forecast. Average monthly weather with temperature, pressure, humidity, precipitation, wind, daylight, sunshine, visibility, and UV index data.
- What time of the year is the coldest in Key West?In Key West, the average lowest temperatures are observed in January , with a high of 72.7°F and a low of 68.5°F .
- What is the usual temperature for Key West in January?In January, the average high-temperature and low-temperature are 72.7°F and 68.5°F respectively.
- What is the average humidity in January in Key West?In January, the average relative humidity in Key West, Florida, is 76% .
- How many days does it rain in January in Key West?In Key West, Florida, in January, it is raining for 12.3 days , with typically 1.34" of accumulated precipitation .
- What are the months with the coldest ocean in Key West?The months with the coldest seawater are January and February , with an average ocean temperature of 71.2°F .
- How cold is the water in January in Key West?In Key West, Florida, in January, the average water temperature is 71.2°F . For swimming, a surface water temperature of 71.2°F is not enjoyable...
- How many hours of daylight does Key West have in January?In Key West, Florida, the average day length in January is 10h and 49min .
- When is the sunrise / sunset in January in Key West?In January, on the first day of the month, sunrise is at 7:11 am and sunset at 5:50 pm . On the last day of the month, in Key West, sunrise...
- How many hours of sunshine does Key West have in January?In January, the average sunshine duration in Key West, Florida, is 7.2h .
Explore comprehensive January 2026 weather forecasts for Key West, including daily high and low temperatures, precipitation risks, and monthly temperature trends. Featuring detailed day-by-day forecasts, dynamic graphs of daily rain probabilities, and temperature trends to help you plan ahead.
Check accurate weather in January in Key West (FL). Expect Key West January temperature around 24°C (75°F). Read clothing tips & recommended activities.
November 2023 to October 2024. Winter will be warmer than normal, with the coldest temperatures in late December, late January, and early February. Winter rainfall will be above normal in the north and below normal in the south. April and May will be warmer and wetter than normal.
Weather reports from January 2021 in Key West, Florida, USA with highs and lows.
