The most detailed information about the water temperature in Key West in Gulf of Mexico (Florida, United States). Forecast of changes in water temperature for the next 10 days. Statistics by months for recent years. Information about the neighboring resorts. Weather forecast in Key West for a week.
Water temperature in Key West right now
data updated 9 minutes ago75°F
yesterday: 75°F
a week ago: 76°F
Trend: slow rise
Today water temperature in Key West is 75.0°F. It is the most comfortable swimming water in any body of water, especially on a hot day. This temperature range is recognized as the most optimal for prolonged bathing. In any case, the general weather is also important. So, the air temperature at the same time will reach 76°F.
Analysis and forecast
The water temperature today is slightly lower than the average on this day in recent years. Its value has rise both over the past 20 days and over the past week. Exactly a year ago, on this day, the water temperature in this location was 77°F. Water temperature range in Key West in April is from 73 to 82 degrees.
According to our forecast, the water temperature in Key West will slowly rise for at least the next 10 days and reach a value of 76°F.
Table of water temperature values in Key West
| Day | Fact* | Average** | Forecast*** |
| Apr 12 | 23.9°C | 25.0°C | |
| Apr 13 | 23.9°C | 25.0°C | |
| Apr 14 | 24.4°C | 25.3°C | |
| Apr 15 | 25.0°C | 25.8°C | |
| Apr 16 | 24.7°C | 25.5°C | |
| Apr 17 | 24.7°C | 26.0°C | |
| Apr 18 | 24.2°C | 25.5°C | |
| Apr 19 | 23.9°C | 26.5°C | |
| Apr 20 | 26.8°C | 24.2°C | |
| Apr 21 | 26.3°C | 23.7°C | |
| Apr 22 | 26.5°C | 23.9°C | |
| Apr 23 | 26.3°C | 23.7°C | |
| Apr 24 | 26.5°C | 23.9°C | |
| Apr 25 | 27.0°C | 24.4°C | |
| Apr 26 | 26.5°C | 23.9°C |
** Average - Average water temperature on this day in past years
*** Forecast - Our forecast for the water temperature
Actual nearshore temperatures may vary by several degrees from the indicated values. This is noticeable after heavy rain or after prolonged periods of strong winds. Some downstream winds cause cold, deep waters to replace surface waters that have been warmed by the sun.
To develop a forecast, we use our own mathematical model, which takes into account the current change in water temperature, historical data and the main weather trends, wind strength and direction, air temperature in each specific region. We also take into account data for other resorts in United States.
Annual graph of average water temperature change in Key West
Water temperature in Key West by month
Key West located in the northern hemisphere, at latitude 24 degrees. The swimming season in this location lasts all year round. Average annual water temperature on the coast in Key West is 79°F, by the seasons: in winter 72°F, in spring 78°F, in summer 85°F, in autumn 81°F. Minimum water temperature (68°F) in Key West it happens in January, maximum (89°F) in August.
You can find out detailed data on how the water temperature in Key West changes in each specific month:
Key West: general information and map
Neighboring cities and resorts
| City | Water* | Distance** |
| Stock Island | 75°C  | 5km |
| Big Coppitt Key | 75°C | 13km |
| Upper Sugarloaf Key | 75°C | 29km |
| Cudjoe Key | 75°C | 32km |
| Little Torch Key | 76°C | 42km |
| Big Pine Key | 76°C | 46km |
| Marathon | 75°C | 72km |
| Duck Key | 76°C | 91km |
** Straight line distance in kilometers
The warmest water today in United States recorded in Lantana, its value is 79°F. Lowest - in Nome, there water temperature now 27°F. Average water temperature in the country today - 56°F.
Water temperature data in Key West and neighboring towns and resorts collected from various sources, using buoys, using satellite maps of sea, river and lake surfaces of the NOAA agency.
We use data from various local authorities in each specific location of the world to more accurately reflect temperature values.
The nearest airport is located in a 2 kilometers. This is Key West International (EYW) airport. We have no information as to whether it is valid and what flights it receives or sends.
Key West: weather forecast
The weather forecast is shown in local time in Key West
25km/hhumidity: 79%, clouds: 83%
21km/hhumidity: 79%, clouds: 55%
23km/hhumidity: 78%, clouds: 63%
18km/hhumidity: 77%, clouds: 46%
18km/hhumidity: 75%, clouds: 28%
15km/hhumidity: 72%, clouds: 33%
18km/hhumidity: 71%, clouds: 65%
19km/hhumidity: 70%, clouds: 67%
20km/hhumidity: 70%, clouds: 33%
16km/hhumidity: 73%, clouds: 3%
18km/hhumidity: 75%, clouds: 7%
23km/hhumidity: 76%, clouds: 1%
19km/hhumidity: 75%, clouds: 0%
16km/hhumidity: 74%, clouds: 0%
19km/hhumidity: 74%, clouds: 0%
23km/hhumidity: 76%, clouds: 18%
22km/hhumidity: 76%, clouds: 24%
22km/hhumidity: 76%, clouds: 33%
24km/hhumidity: 77%, clouds: 17%
21km/hhumidity: 76%, clouds: 0%
22km/hhumidity: 75%, clouds: 0%
15km/hhumidity: 72%, clouds: 32%
17km/hhumidity: 76%, clouds: 67%
20km/hhumidity: 77%, clouds: 0%
22km/hhumidity: 78%, clouds: 0%
16km/hhumidity: 76%, clouds: 0%
14km/hhumidity: 75%, clouds: 0%
12km/hhumidity: 73%, clouds: 4%
7km/hhumidity: 71%, clouds: 5%
1km/hhumidity: 70%, clouds: 2%
14km/hhumidity: 72%, clouds: 2%
23km/hhumidity: 78%, clouds: 5%
20km/hhumidity: 79%, clouds: 3%
20km/hhumidity: 83%, clouds: 4%
16km/hhumidity: 81%, clouds: 8%
16km/hhumidity: 80%, clouds: 2%
12km/hhumidity: 78%, clouds: 1%
