Sea Temperature in Siesta Key in December

Complete information on the sea temperature range in the Gulf of Mexico (Gulf of America) in Siesta Key in December. Historical daily data. Climate details for December. Tips on swimming conditions and beach relaxation in Siesta Key. 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 Siesta Key in December

16°C

MINIMUN

20°C

AVERAGE

24°C

MAXIMUM

Historical Data of Water Temperature in December in Siesta Key

Water Temperature Chart for Gulf of Mexico (Gulf of America) in Siesta Key in December

Sea Temperature Table in Siesta Key in December Over the Past Years

Day	2024	2023	2022	Average
Dec 1	22°C	20°C	23°C	21.3°C
Dec 2	21°C	21°C	23°C	21.3°C
Dec 3	21°C	22°C	22°C	21.3°C
Dec 4	21°C	21°C	22°C	20.8°C
Dec 5	20°C	22°C	23°C	21.3°C
Dec 6	19°C	22°C	22°C	21.0°C
Dec 7	19°C	21°C	23°C	20.8°C
Dec 8	19°C	19°C	20°C	20.0°C
Dec 9	20°C	19°C	20°C	20.5°C
Dec 10	19°C	20°C	23°C	21.0°C
Dec 11	19°C	20°C	23°C	21.0°C
Dec 12	20°C	20°C	23°C	21.3°C
Dec 13	19°C	20°C	22°C	21.0°C
Dec 14	18°C	19°C	22°C	20.3°C
Dec 15	18°C	19°C	23°C	20.8°C
Dec 16	18°C	19°C	22°C	20.5°C
Dec 17	18°C	19°C	22°C	20.3°C
Dec 18	18°C	19°C	22°C	20.5°C
Dec 19	19°C	19°C	22°C	20.8°C
Dec 20	19°C	19°C	21°C	20.5°C
Dec 21	19°C	18°C	20°C	19.8°C
Dec 22	18°C	18°C	20°C	19.5°C
Dec 23	18°C	18°C	20°C	19.5°C
Dec 24	17°C	17°C	20°C	19.0°C
Dec 25	18°C	17°C	19°C	19.0°C
Dec 26	19°C	17°C	18°C	19.0°C
Dec 27	19°C	18°C	17°C	18.8°C
Dec 28	18°C	18°C	17°C	18.8°C
Dec 29	18°C	18°C	17°C	18.5°C
Dec 30	19°C	18°C	17°C	19.0°C

Siesta Key Climate and Swimming Opportunities in December

24°C

Average Day Air Temperature

12°C

Average Night Air Temperature

58 mm

Precipitation Amount per Month

7 days

Number of Rainy Days

10 hrs

Daylight
per Day

6 hrs

Sunshine
per Day

13 km/h

Average Wind Speed

75%

Average
humidity

Siesta Key lies within the Florida in United States. The average daytime temperature in Siesta Key in December is 75°F (24°C), while the nighttime average is 54°F (12°C). There are typically seven rainy days during the month, with a total precipitation of 2.3 inches (58 mm). The daylight duration in December in Siesta Key is 10 hours, with an average of 6 hours of sunshine per day. The average wind speed in December is 8 mph (13 km/h), and the humidity level is around 75%.

The water temperature in Siesta Key in December ranges from 64°F to 70°F (18°C to 21°C). At the beginning of the month, the average temperature is around 70°F (21°C), shifting to 70°F (21°C) by mid-December and reaching 66°F (19°C) in the last ten days. Overall, the average sea temperature in Siesta Key for December is 68°F (20°C). Very comfortable swimming conditions. The water is fresh but not too cold, and the air temperature is pleasant.

Sea Temperature in December in Nearby Cities

Frequently Asked Questions About Water Temperatures in December in Siesta Key

What is the sea temperature in Siesta Key in December?

The water temperature in the Gulf of Mexico (Gulf of America) in Siesta Key in December ranges from 64°F to 70°F (18°C to 21°C).

Is it possible to swim in the Gulf of Mexico (Gulf of America) in Siesta Key in December?

The average sea temperature in Siesta Key in December is 68°F (20°C), and the air temperature is 75°F (24°C), so very comfortable swimming conditions. The water is fresh but not too cold, and the air temperature is pleasant.