
The most detailed information about the water temperature in Florida Keys 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 Florida Keys for a week.
Water temperature in Florida Keys right now
data updated 46 minutes ago72°F

yesterday: 73°F
a week ago: 76°F
Trend: stability
Today water temperature in Florida Keys is 72.3°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 over the last week, but has drop compared to 20 days ago. Exactly a year ago, on this day, the water temperature in this location was 77°F. Water temperature range in Florida Keys in March is from 68 to 84 degrees.
According to our forecast, the water temperature in Florida Keys will move in different directions, in the coming days the water will become warmer, but after 10 days it will still get a little colder to 71°F.
Table of water temperature values in Florida Keys
Day | Fact* | Average** | Forecast*** |
Mar 18 | 24.5°C | 24.5°C | |
Mar 19 | 23.5°C | 24.8°C | |
Mar 20 | 23.9°C | 24.8°C | |
Mar 21 | 23.5°C | 23.8°C | |
Mar 22 | 23.1°C | 24.0°C | |
Mar 23 | 22.3°C | 24.3°C | |
Mar 24 | 22.9°C | 24.0°C | |
Mar 25 | 22.4°C | 25.3°C | |
Mar 26 | 25.5°C | 22.6°C | |
Mar 27 | 26.0°C | 23.0°C | |
Mar 28 | 26.5°C | 23.5°C | |
Mar 29 | 26.0°C | 23.0°C | |
Mar 30 | 25.8°C | 22.8°C | |
Mar 31 | 26.0°C | 23.0°C | |
Apr 1 | 24.8°C | 22.0°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 Florida Keys

Water temperature in Florida Keys by month
Florida Keys located in the northern hemisphere, at latitude 25 degrees. The swimming season in this location lasts all year round. Average annual water temperature on the coast in Florida Keys is 79°F, by the seasons: in winter 73°F, in spring 78°F, in summer 85°F, in autumn 81°F. Minimum water temperature (68°F) in Florida Keys it happens in January, maximum (88°F) in August.
You can find out detailed data on how the water temperature in Florida Keys changes in each specific month:
Florida Keys: general information and map
Neighboring cities and resorts
City | Water* | Distance** |
Key Largo | 73°C ![]() ![]() | 11km |
Tavernier | 73°C ![]() ![]() | 13km |
Islamorada | 73°C ![]() ![]() | 24km |
North Key Largo | 73°C ![]() ![]() | 27km |
Everglades | 73°C ![]() ![]() | 37km |
Layton | 73°C ![]() ![]() | 43km |
Duck Key | 74°C ![]() ![]() | 54km |
Cutler | 74°C ![]() ![]() | 59km |
Palmetto Bay | 75°C ![]() ![]() | 60km |
Coconut Grove | 75°C ![]() ![]() | 71km |
Marathon | 74°C ![]() ![]() | 72km |
Key Biscayne | 75°C ![]() ![]() | 74km |
** Straight line distance in kilometers

The warmest water today in United States recorded in Kahaluu Keauhou, its value is 76°F. Lowest - in Dillingham, there water temperature now 27°F. Average water temperature in the country today - 51°F.
Water temperature data in Florida Keys 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 15 kilometers. This is Port Largo (KYL) airport. We have no information as to whether it is valid and what flights it receives or sends.
Florida Keys: weather forecast
The weather forecast is shown in local time in Florida Keys


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