Sea Temperature in Key West in January

Complete information on the sea temperature range in the Gulf of Mexico (Gulf of America) in Key West in January. Historical daily data. Climate details for January. 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 January

19°C

MINIMUN

21.5°C

AVERAGE

24°C

MAXIMUM

Historical Data of Water Temperature in January in Key West

Water Temperature Chart for Gulf of Mexico (Gulf of America) in Key West in January

Sea Temperature Table in Key West in January Over the Past Years

Day	2024	2023	2022	Average
Jan 1	23°C	24°C	19°C	22.5°C
Jan 2	23°C	19°C	22°C	22.3°C
Jan 3	24°C	19°C	19°C	21.5°C
Jan 4	24°C	24°C	20°C	23.0°C
Jan 5	24°C	20°C	23°C	22.8°C
Jan 6	23°C	23°C	22°C	22.3°C
Jan 7	23°C	21°C	23°C	22.3°C
Jan 8	23°C	24°C	22°C	22.8°C
Jan 9	24°C	22°C	23°C	22.8°C
Jan 10	22°C	20°C	21°C	21.0°C
Jan 11	23°C	21°C	19°C	21.0°C
Jan 12	23°C	21°C	21°C	21.5°C
Jan 13	23°C	20°C	21°C	21.3°C
Jan 14	23°C	24°C	24°C	22.8°C
Jan 15	23°C	23°C	22°C	22.0°C
Jan 16	22°C	19°C	22°C	20.8°C
Jan 17	23°C	21°C	24°C	22.3°C
Jan 18	22°C	20°C	24°C	21.5°C
Jan 19	22°C	24°C	24°C	22.8°C
Jan 20	22°C	21°C	23°C	22.0°C
Jan 21	23°C	19°C	19°C	20.8°C
Jan 22	22°C	24°C	24°C	23.0°C
Jan 23	22°C	21°C	21°C	21.5°C
Jan 24	23°C	24°C	23°C	23.0°C
Jan 25	23°C	23°C	20°C	21.5°C
Jan 26	24°C	20°C	20°C	21.0°C
Jan 27	24°C	19°C	22°C	21.3°C
Jan 28	23°C	20°C	21°C	21.0°C
Jan 29	23°C	21°C	22°C	21.8°C
Jan 30	24°C	21°C	19°C	21.5°C

Key West Climate and Swimming Opportunities in January

23°C

Average Day Air Temperature

16°C

Average Night Air Temperature

44 mm

Precipitation Amount per Month

8 days

Number of Rainy Days

11 hrs

Daylight
per Day

7 hrs

Sunshine
per Day

18 km/h

Average Wind Speed

75%

Average
humidity

Key West lies within the Florida in United States. The average daytime temperature in Key West in January is 74°F (23°C), while the nighttime average is 61°F (16°C). There are typically eight rainy days during the month, with a total precipitation of 1.7 inches (44 mm). The daylight duration in January in Key West is 11 hours, with an average of 7 hours of sunshine per day. The average wind speed in January is 11 mph (18 km/h), and the humidity level is around 75%.

The water temperature in Key West in January ranges from 68°F to 73°F (20°C to 23°C). At the beginning of the month, the average temperature is around 72°F (22°C), shifting to 72°F (22°C) by mid-January and reaching 72°F (22°C) in the last ten days. Overall, the average sea temperature in Key West for January is 72°F (22°C). Optimal swimming conditions. The water is warm, and the air is comfortable for drying off and sunbathing.

Sea Temperature in January in Nearby Cities

Frequently Asked Questions About Water Temperatures in January in Key West

What is the sea temperature in Key West in January?

The water temperature in the Gulf of Mexico (Gulf of America) in Key West in January ranges from 68°F to 73°F (20°C to 23°C).

Is it possible to swim in the Gulf of Mexico (Gulf of America) in Key West in January?

The average sea temperature in Key West in January is 72°F (22°C), and the air temperature is 74°F (23°C), so optimal swimming conditions. The water is warm, and the air is comfortable for drying off and sunbathing.