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.
The coldest month is January with an average water temperature of 73.6°F / 23.1°C.
January is the driest at 0in / 0mm and September the wettest month with 4.5in / 115.1mm.
With an average air temperature of 82.6°F / 28.1°C, August is the warmest month in a year. January is the coldest with 67.1°F / 19.5°C average air temperature.
The Climate is described as tropical savanna climate with wet summer. Best time to Visit would be in March, April, May, June, September, October, November.
Key West Summary
| Description | Value |
|---|---|
| Current water temperature | / |
| 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 |
| Driest Month: | January with 0in / 0mm |
| 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 |
Key West water temperature by month
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 |
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 by month / climate table
Max. Temperature °F | ø. Temperature °F | Min. Temperature (°F) |
Precip. (in) |
Rainy Days (d) |
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 | 15 | 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 | 18 | 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 (d) |
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 | 15 | 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 | 18 | 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% |
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
