Key West Weather in December

Averages By Month

December Overview

The most popular month in terms of number of visitors coming to Key West is December. The hurricane season has ended. Air temperatures are still very pleasant and warm, being between 73°F (23°C) and 83°F (28°C). With seven and a half hours of sunshine per day and sea temperatures of about 75°F (24°C), you can spend lovely days on the beach and enjoy swimming in the Atlantic Ocean. Like in November, you only have to expect around six rainy days, offering perfect conditions for outdoor activities. All in all, December might be the perfect month for visiting Key West.

Seize the pleasant weather of December and go on exciting adventures to discover Key West! Book a tour for dolphin watching and snorkeling, take a chance for your first parasailing experience or become a little romantic on the glass-bottom boat trip to the reef at sunset. For activities on land, you can take part in a guided bike tour or get on the charming conch train that travels through Key West and find out more about the lovely city. To experience nightlife in Key West, pay a visit to excellent bars like the famous Sloppy Joe’s or Sunset Pier where you can watch the Sunset Celebration every night of the year. For a bite to eat, make sure to stop by at the live music restaurant Willie T’s, the Italian restaurant La Trattoria or Latitudes for fine dining.

High and Low Temperature in December °F

Water Temperature in December °F

Current Weather Key West

85°F few clouds
Local Time

Hourly 10 Days

Averages Key West

  J F M A M J J A S O N D

High °F

76° 77° 80° 83° 86° 89° 90° 91° 89° 86° 81° 78°

Low °F

66° 67° 69° 73° 76° 79° 81° 81° 79° 77° 72° 68°


8 9 10 11 11 11 11 10 9 8 8 8

Rain days

7 5 5 5 8 11 12 15 16 12 6 6

Water °F

71° 71° 73° 78° 81° 83° 86° 87° 86° 83° 78° 75°

Key West Weather by Month

Best Time to Visit Key West

As the area of Key West is characterized by traits of tropical climates, air and water temperatures remain typically warm throughout the whole year. However, the amount of rainfall shows significant monthly variations: From May through October, rainy days are very common with an average temperature of 84°F (29°C). This is the wet season. In the dry season however, days only have minimal rain but a lot of sunny and dry weather. The average temperature is slightly less than in the wet season at  74°F (23°C). Yet the range of monthly temperature averages only amounts to 15°F (8°C), implying that there are hardly any variations in temperature throughout the year. Taking the hurricane season into account as well, which occurs from June to November, the best time to pay a visit to Key West is from December to April. Accordingly, Key West has its highest visitor count in the months of December and January. During fall however, the numbers of visitors are at a minimum.

Days in Key West during the wet season (May through October) are characterized by rain and humidity. Heavy showers, especially during morning time, shortly followed by strong sunlight are typical. Precipitation reaches a peak in August through October being additionally affected by hurricanes and tropical thunderstorms at times. Visiting Key West during these months, rapidly changing weather conditions have to be expected.

Dry season (November through April) brings a lot of sunny days with low precipitation levels to Key West. Due to the dry climate, the average precipitation amounts to only 40 mm per year, causing Key West to be the driest place within Florida. While low rainfall is favorable for visits, the temperature at this time of the year can be somewhat cooler than in summer.

Due to changeable weather situations, it is highly recommended to keep an eye on local weather reports during your journey in Key West particularly to avoid major storms during hurricane season.

Things to know about Key West

Key West Location

Other destinations by month

Terms & Conditions | Privacy Policy | Cookies