Key West Water Temperature

Key West is a beautiful sandy island on the straits of Florida. Around 90km from Cuba, it is a very popular tourist destination for those seeking some relaxation and pleasure in the sun.


It is also an historic cultural hotspot, with famous authors and playwrights such as Tennessee Williams and Ernest Hemingway known to have lived there.

Key West is a town close to gulf of mexico. tropical savanna climate with wet summer would be the climate here. August is the month with the highest water temperature at 86.5°F / 30.3°C. The month with the lowest is January with an average water temperature of 73.6°F / 23.1°C. The avg. air temperature is around 82.6°F / 28.1°C, August is the month with the highest temperature. January is the coolest with 67.1°F / 19.5°C average air temperature. January is the month with the min. precipitation of 0in / 0mm and September with the max. precipitation in a year with 4.5in / 115.1mm. If you plan to visit this place, the month March, April, May, June, September, October, November would be the best time.

Key West Summary

Description Value
Current water temperature 78.8 °F / 26 °C
Warmest Month Water Temperature: August with 86.5°F / 30.3°C
Coldest Month Water Temperature: January with 73.6°F / 23.1°C
Warmest Month Air Temperature: August with 82.6°F / 28.1°C
Coldest Month Air Temperature: January with 67.1°F / 19.5°C
Wettest Month: September with 4.5in / 115.1mm
Highest Humidity September with 79.1%
Lowest Humidity April with 64.4%
Best Time to Visit: March, April, May, June, September, October, November
Climate Classification tropical savanna climate with wet summer

Water Temperature gulf of mexico

Key West,United States of America: The current water temperature 78.8 °F

The temperature is suitable for swimming

gulf of mexico water temperature by month

Max. Water

Temperature

(°F)

ø. Water

Temperature

(°F)

Min. Water

Temperature

(°F)

January

75.2 73.8 72.7

February

74.7 73.6 73

March

76.3 75.2 74.1

April

79 77.5 76.3
May 82.2 80.6 78.8

June

84.9 83.8 82.4

July

86.4 85.5 84.7

August

86.7 86.4 85.8

September

86.2 85.5 84.4

October

84.6 83.1 80.8

November

80.8 79 77.4

December

77.2 76.1 74.8

Key West,United States of America: The current water temperature 26 °C

The temperature is suitable for swimming

gulf of mexico water temperature by month

Max. Water

Temperature

(°C)

ø. Water

Temperature

(°C)

Min. Water

Temperature

(°C)

January

24 23.2 22.6

February

23.7 23.1 22.8

March

24.6 24 23.4

April

26.1 25.3 24.6
May 27.9 27 26

June

29.4 28.8 28

July

30.2 29.7 29.3

August

30.4 30.2 29.9

September

30.1 29.7 29.1

October

29.2 28.4 27.1

November

27.1 26.1 25.2

December

25.1 24.5 23.8
The highest water temperature will be reached in August with around 86.5°F / 30.3°C. The lowest in January with an average water temperature of 73.6°F / 23.1°C.

Key West is characterised by its warm waters. In the recommended visiting period, which runs from March until May, the water temperature typically falls between 75 and 82 degrees.

The water temperature at Key West is warmest in July and August, when it reaches around 87 degrees, however this is also the time of the hurricane season. Swimmers who want clear skies and warm waters should aim to visit between March and May, then. But swimmers who are happy to brave the rain for even warmer waters could consider visiting in June, July, or August.

Key West weather forecast for the next 14 days

Date Weather High Temp. Low Temp. Rain? Windspeed Precipitation Humidity
Nov 25.
Patchy rain nearby
79 °F
26 °C
79 °F
26 °C
84 %
15.5 mph
25 km/h
0.1 inch
2.7 mm
79%
Nov 26.
Patchy rain nearby
79 °F
26 °C
79 °F
26 °C
87 %
15.5 mph
25 km/h
0.2 inch
4 mm
80%
Nov 27.
Patchy rain nearby
77 °F
25 °C
75 °F
24 °C
81 %
14.3 mph
23 km/h
0 inch
0.6 mm
79%
Nov 28.
Patchy rain nearby
75 °F
24 °C
63 °F
17 °C
77 %
13 mph
21 km/h
0 inch
0.2 mm
75%
Nov 29.
Cloudy
72 °F
22 °C
61 °F
16 °C
0 %
14.3 mph
23 km/h
0 inch
0 mm
73%
Nov 30.
Partly Cloudy
77 °F
25 °C
64 °F
18 °C
0 %
16.8 mph
27 km/h
0 inch
0 mm
79%
Dec 01.
Partly Cloudy
77 °F
25 °C
77 °F
25 °C
0 %
13.7 mph
22 km/h
0 inch
0 mm
77%
Date Weather High Temp. Low Temp. Rain? Windspeed Precipitation Humidity
Dec 02.
Partly Cloudy
77 °F
25 °C
77 °F
25 °C
0 %
10.6 mph
17 km/h
0 inch
0 mm
72%
Dec 03.
Patchy rain nearby
77 °F
25 °C
77 °F
25 °C
89 %
21.1 mph
34 km/h
0.1 inch
1.5 mm
81%
Dec 04.
Partly Cloudy
73 °F
23 °C
59 °F
15 °C
0 %
16.2 mph
26 km/h
0 inch
0.1 mm
74%
Dec 05.
Partly Cloudy
66 °F
19 °C
50 °F
10 °C
0 %
15.5 mph
25 km/h
0 inch
0 mm
56%
Dec 06.
Partly Cloudy
66 °F
19 °C
52 °F
11 °C
0 %
11.8 mph
19 km/h
0 inch
0 mm
57%
Dec 07.
Patchy rain nearby
68 °F
20 °C
52 °F
11 °C
88 %
14.9 mph
24 km/h
0.1 inch
2.1 mm
69%
Dec 08.
Partly Cloudy
70 °F
21 °C
59 °F
15 °C
0 %
19.3 mph
31 km/h
0 inch
0 mm
66%

Key West weather by month

Max.

Temperature

(°F)

ø.

Temperature

(°F)

Min.

Temperature

(°F)

Precip.

(inch)

Rainy Days

(day)

Rel. Humidity

(%)

January

78.3 67.1 58.3 0 0 68.5%

February

80.1 69.4 59.4 0.1 0 69.8%

March

81.9 71.8 62.4 0.1 0 65.1%

April

85.3 75.6 66.9 0 0 64.4%

May

87.4 79 70.5 1 0 67.2%

June

88.2 81.1 75 4.5 14.9 76.3%

July

89.4 82.2 76.8 3.3 14 76.4%

August

89.6 82.6 77.5 4.5 14 77%

September

88.2 81 75.7 4.5 17.6 79.1%

October

86.4 78.3 70 1.6 0 73.7%

November

83.3 73.2 63.3 0.1 0 68.8%

December

79.3 70.5 62.4 0.2 0 71.5%
Max.

Temperature

(°C)

ø.

Temperature

(°C)

Min.

Temperature

(°C)

Precip.

(mm)

Rainy Days

(days)

Rel. Humidity

(%)

January

25.7 19.5 14.6 0 0 68.5%

February

26.7 20.8 15.2 1.8 0 69.8%

March

27.7 22.1 16.9 1.7 0 65.1%

April

29.6 24.2 19.4 0 0 64.4%

May

30.8 26.1 21.4 26.3 0 67.2%

June

31.2 27.3 23.9 114.5 14.9 76.3%

July

31.9 27.9 24.9 83 14 76.4%

August

32 28.1 25.3 114.4 14 77%

September

31.2 27.2 24.3 115.1 17.6 79.1%

October

30.2 25.7 21.1 40.8 0 73.7%

November

28.5 22.9 17.4 1.8 0 68.8%

December

26.3 21.4 16.9 3.9 0 71.5%
The hottest avg. temperature is around 82.6°F / 28.1°C, August is the month with the highest temperature. January is the coolest with 67.1°F / 19.5°C average temperature. January is the month with the lowest precipitation of 0in / 0mm and September with the maximum precipitation in a year with 4.5in / 115.1mm.

Best time to visit Key West

Key West is a popular tourist destination, and there are several factors to keep in mind when deciding which time to visit. This region tends to be very popular the Christmas holidays, whilst the hurricane season falls between June and November.

Thus, one of the best times to visit Key West is between March and May, as the area will be quieter and less expensive, and the temperature will be a delightfully warm 70 or 80 degrees. Key West has its own airport, with connecting flights from major airports such as Florida and the Bahamas, making it easily reachable by plane.

Activities & POI in Key West

Type of Activity List
Beach Smathers Beach, South Beach, Truman Beach, Higgs Beach
Marina for Sailing, Boat adventures, fishing Key West Bight Marina, Oceanside Marina, Murray Marine, Key West Harbour
Attraction Southernmost Point, Key West Extreme Adventures, Southernmost point in the US, Nancy Forrester's Secret Garden, Dolphin Watch, Mallory Square
Golf Course Key West City Golf Club
Caravan Site Boyd's Key West Campground

Picture Copyright: Flickr CC 2.0 jdeeringdavis

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