Weather in Key West, United States in December

So you're interested in going to Key West, United States in December

December is a warm and slightly rainy time for sunbathing in Key West. December is a good month for swimming in Key West with warm sea temperatures. Consider visiting Key West in the months of March, April, May, December, for the best beach weather. Also consider one of our other suggestions for December.

Temperature in Key West in December

The average maximum temperature in Key West in December is 25°. The average maximum temperature is 26° in the previous month and 24° in the next month.

The average temperature in Key West in December is 22°. The average temperature ranges is 24° in the previous month and 21° in the next month.

The average minimum temperature in Key West in December is 20°. The minimum temperature is 22° in the previous month and 18° in the next month.

Sunshine in Key West in December

The average day light hours per day in Key West in December are 10.6 and there are 6.9 hours of sunshine per day on average during December making it a quite sunny month with some cloud cover.

The ultraviolet index in Key West in December is typically 5.6 during December. An ultraviolet index reading of 3 to 5 indicates there is a moderate risk of harm from unprotected sun exposure. Keep out of the sun during the strongest hours around midday when unprotected skin risks burning in less than 30 minutes. For the sensitive wear protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 30+ sunscreen every 2 hours, even on cloudy days, and after swimming or sweating. Tanning for hours is possible with the right application of sun cream. Watch out for relections from water that may increase ultraviolet exposure.

Sea Temperature in Key West in December

The average sea water temperature in Key West in December is 24.9° which is warm and pleasant for relaxing and swimming for long periods.

Rainfall in Key West in December

The average total rainfall in Key West in December is 44.5cm and on average there are 8.2 rainy days in December making it a slightly wet time to visit the beach.

Humidity in Key West in December

The maximum dew point (an indicator of humidity) in Key West in December is 19° which is somewhat uncomfortable for most people in cities but fine on a beach. The dew point is 20° in the previous month and 18° in the next month.

The average maximum relative humidity in Key West in December is typically 87.5%. The maximum relative humidity is 84.9% in the previous month and 87.5% in the next month.

The average relative humidity in Key West in December is typically 76.7%. The average relative humidity is 73.6% in the previous month and 75.7% in the next month.

Wind Speed in Key West in December

The average maximum wind speed in Key West in December is typically 28kmh. The average maximum wind speed is 29kmh in the previous month and 29kmh in the next month.

The average wind speed in Key West in December is typically 16kmh. The average wind speed is 17kmh in the previous month and 17kmh in the next month.

The average wind direction in Key West in December is from the North-Northeast.

Monthly Averages

Suggested Beaches in December

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