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Sea Temperature in Key West in December
Complete information on the sea temperature range in the Gulf of Mexico (Gulf of America) in Key West in December. Historical daily data. Climate details for December. Tips on swimming conditions and beach relaxation in Key West. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.
Water Temperature Range in Key West in December
70°F
MINIMUN
75°F
AVERAGE
81°F
MAXIMUM
Historical Data of Water Temperature in December in Key West
Water Temperature Chart for Gulf of Mexico (Gulf of America) in Key West in December
Sea Temperature Table in Key West in December Over the Past Years
| Day | 2024 | 2023 | 2022 | Average |
|---|---|---|---|---|
| Dec 1 | 77°C | 75°C | 79°C | 78°C |
| Dec 2 | 77°C | 75°C | 79°C | 77°C |
| Dec 3 | 75°C | 77°C | 79°C | 78°C |
| Dec 4 | 73°C | 77°C | 77°C | 77°C |
| Dec 5 | 73°C | 79°C | 81°C | 78°C |
| Dec 6 | 73°C | 77°C | 79°C | 77°C |
| Dec 7 | 73°C | 79°C | 77°C | 77°C |
| Dec 8 | 72°C | 73°C | 75°C | 74°C |
| Dec 9 | 72°C | 72°C | 75°C | 74°C |
| Dec 10 | 73°C | 75°C | 77°C | 76°C |
| Dec 11 | 72°C | 75°C | 77°C | 76°C |
| Dec 12 | 73°C | 75°C | 77°C | 76°C |
| Dec 13 | 75°C | 77°C | 77°C | 77°C |
| Dec 14 | 72°C | 75°C | 77°C | 76°C |
| Dec 15 | 72°C | 73°C | 75°C | 75°C |
| Dec 16 | 72°C | 73°C | 77°C | 75°C |
| Dec 17 | 72°C | 75°C | 77°C | 75°C |
| Dec 18 | 72°C | 73°C | 77°C | 75°C |
| Dec 19 | 72°C | 75°C | 77°C | 76°C |
| Dec 20 | 75°C | 73°C | 75°C | 76°C |
| Dec 21 | 73°C | 73°C | 75°C | 76°C |
| Dec 22 | 70°C | 72°C | 75°C | 74°C |
| Dec 23 | 72°C | 72°C | 77°C | 74°C |
| Dec 24 | 70°C | 72°C | 77°C | 74°C |
| Dec 25 | 70°C | 72°C | 75°C | 73°C |
| Dec 26 | 72°C | 72°C | 75°C | 73°C |
| Dec 27 | 72°C | 73°C | 75°C | 74°C |
| Dec 28 | 72°C | 73°C | 73°C | 74°C |
| Dec 29 | 73°C | 73°C | 72°C | 74°C |
| Dec 30 | 72°C | 73°C | 72°C | 73°C |
Key West Climate and Swimming Opportunities in December
75°F
Average Day Air Temperature
63°F
Average Night Air Temperature
2 in
Precipitation Amount per Month
7 days
Number of Rainy Days
10 hrs
Daylight
per Day
7 hrs
Sunshine
per Day
11 mph
Average Wind Speed
75%
Average
humidity
Key West lies within the Florida in United States. The average daytime temperature in Key West in December is 76°F (24°C), while the nighttime average is 63°F (17°C). There are typically seven rainy days during the month, with a total precipitation of 1.7 inches (42 mm). The daylight duration in December in Key West is 10 hours, with an average of 7 hours of sunshine per day. The average wind speed in December is 11 mph (18 km/h), and the humidity level is around 75%.
The water temperature in Key West in December ranges from 73°F to 77°F (23°C to 25°C). At the beginning of the month, the average temperature is around 77°F (25°C), shifting to 75°F (24°C) by mid-December and reaching 75°F (24°C) in the last ten days. Overall, the average sea temperature in Key West for December is 75°F (24°C). Optimal swimming conditions. The water is warm, and the air is comfortable for drying off and sunbathing.
Sea Temperature in December in Nearby Cities
Frequently Asked Questions About Water Temperatures in December in Key West
What is the sea temperature in Key West in December?
The water temperature in the Gulf of Mexico (Gulf of America) in Key West in December ranges from 73°F to 77°F (23°C to 25°C).
Is it possible to swim in the Gulf of Mexico (Gulf of America) in Key West in December?
The average sea temperature in Key West in December is 75°F (24°C), and the air temperature is 76°F (24°C), so optimal swimming conditions. The water is warm, and the air is comfortable for drying off and sunbathing.