Water temperature in Key West
72.8
°F
December 21, 12:51
Trend:
stableYesterday:
73.5°FTomorrow:
72.9°F
Sunrise:
Sunset:
Day Length:
10 h. 37 min.Key West in December
Minimum:
71.7°FAverage:
73.6°FMaximum:
75.6°FSea water temperature in Key West today
As of now, in Key West, the water temperature is 72.8°F. Swimming in water of this temperature is seen as relatively warm and enjoyable for some individuals, although many might find it slightly too cool. Today's reading is 2.4°F lower than the average recorded on this particular day in recent years. The sea temperature remains approximately unchanged from yesterday. According to the forecast, we expect the temperature to stay about the same.Recent sea temperature and forecast
The water temperature today is above average for the last two weeks, showing a small increase in temperature. It is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 78.0°F on 2016, while the historical minimum was 71.0°F on 2023.
Daily water temperature in Key West
| Date |
Current Year
actual* / forecast** |
last year | 10 years average |
|---|---|---|---|
| Dec 7 | 73.9°F | 77.8°F | 76.7°F |
| Dec 8 | 72.1°F | 77.2°F | 76.3°F |
| Dec 9 | 70.7°F | 76.3°F | 76.0°F |
| Dec 10 | 72.6°F | 76.0°F | 76.0°F |
| Dec 11 | 72.4°F | 75.6°F | 75.8°F |
| Dec 12 | 73.5°F | 74.9°F | 76.0°F |
| Dec 13 | 71.7°F | 75.1°F | 75.7°F |
| Dec 14 | 71.0°F | 75.8°F | 75.8°F |
| Dec 15 | 71.3°F | 74.7°F | 75.7°F |
| Dec 16 | 71.6°F | 74.8°F | 75.8°F |
| Dec 17 | 72.4°F | 74.7°F | 76.0°F |
| Dec 18 | 73.5°F | 74.0°F | 75.9°F |
| Dec 19 | 74.2°F | 74.2°F | 75.8°F |
| Dec 20 | 73.5°F | 73.9°F | 75.6°F |
| Dec 21 | 72.8°F | 71.0°F | 75.2°F |
| Dec 22 | 72.9°F | 72.4°F | 75.3°F |
| Dec 23 | 72.7°F | 73.9°F | 75.1°F |
| Dec 24 | 72.4°F | 72.5°F | 74.8°F |
| Dec 25 | 72.4°F | 72.5°F | 74.8°F |
| Dec 26 | 72.1°F | 72.2°F | 74.5°F |
| Dec 27 | 72.2°F | 74.1°F | 74.7°F |
| Dec 28 | 72.2°F | 73.1°F | 74.6°F |
* actual - actual temperature values
** forecast - projected values for the next week
Real-time coastal temperatures could deviate by several degrees from the provided readings. These deviations often become evident following intense rainfall or strong winds.
Our forecasting methodology leverages a mathematical model, that uses current water and weather conditions, historical records, wind intensity and direction.