The most detailed information about the water temperature in Marathon 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 Marathon for a week.
Water temperature in Marathon right now
data updated 34 minutes ago78°F
yesterday: 77°F
a week ago: 78°F
Trend: stability
Today water temperature in Marathon is 78.8°F. It is very warm and comfortable water for long swimming in any body of water. It is believed that these are the ideal conditions under which one can be without the slightest discomfort. But it is worth remembering that at such a water temperature, various disease-causing organisms multiply very quickly. In any case, the general weather is also important. So, the air temperature at the same time will reach 75°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 82°F. Water temperature range in Marathon in April is from 71 to 82 degrees.
According to our forecast, in the next 5-6 days the water temperature in Marathon will become lower than today, but in 10 days it will still slightly rise, its value will be 78°F.
Table of water temperature values in Marathon
| Day | Fact* | Average** | Forecast*** |
| Apr 18 | 24.5°C | 26.5°C | |
| Apr 19 | 24.8°C | 26.0°C | |
| Apr 20 | 24.6°C | 26.5°C | |
| Apr 21 | 24.4°C | 26.3°C | |
| Apr 22 | 25.2°C | 26.8°C | |
| Apr 23 | 25.4°C | 27.0°C | |
| Apr 24 | 25.2°C | 26.5°C | |
| Apr 25 | 26.0°C | 27.3°C | |
| Apr 26 | 27.0°C | 25.7°C | |
| Apr 27 | 27.5°C | 26.2°C | |
| Apr 28 | 27.5°C | 26.2°C | |
| Apr 29 | 27.3°C | 26.0°C | |
| Apr 30 | 27.8°C | 26.5°C | |
| May 1 | 27.0°C | 25.7°C | |
| May 2 | 26.8°C | 25.5°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 Marathon
Water temperature in Marathon by month
Marathon 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 Marathon is 79°F, by the seasons: in winter 73°F, in spring 78°F, in summer 85°F, in autumn 82°F. Minimum water temperature (68°F) in Marathon it happens in February, maximum (87°F) in July.
You can find out detailed data on how the water temperature in Marathon changes in each specific month:
Marathon: general information and map
Neighboring cities and resorts
| City | Water* | Distance** |
| Duck Key | 79°C | 19km |
| Big Pine Key | 80°C | 27km |
| Layton | 78°C | 31km |
| Little Torch Key | 79°C | 31km |
| Cudjoe Key | 78°C | 41km |
| Upper Sugarloaf Key | 78°C | 44km |
| Islamorada | 78°C | 52km |
| Big Coppitt Key | 78°C | 59km |
| Everglades | 79°C | 65km |
| Tavernier | 79°C | 67km |
| Stock Island | 79°C | 68km |
| Key West | 78°C | 72km |
** Straight line distance in kilometers
The warmest water today in United States recorded in Big Pine Key, its value is 80°F. Lowest - in Nome, there water temperature now 28°F. Average water temperature in the country today - 57°F.
Water temperature data in Marathon 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 4 kilometers. This is The Florida Keys Marathon (MTH) airport. We have no information as to whether it is valid and what flights it receives or sends.
Marathon: weather forecast
The weather forecast is shown in local time in Marathon
24km/hhumidity: 64%, clouds: 0%
28km/hhumidity: 63%, clouds: 0%
29km/hhumidity: 64%, clouds: 0%
29km/hhumidity: 64%, clouds: 0%
28km/hhumidity: 66%, clouds: 0%
25km/hhumidity: 65%, clouds: 0%
24km/hhumidity: 63%, clouds: 0%
28km/hhumidity: 63%, clouds: 0%
29km/hhumidity: 63%, clouds: 0%
34km/hhumidity: 64%, clouds: 1%
39km/hhumidity: 65%, clouds: 3%
38km/hhumidity: 67%, clouds: 98%
36km/hhumidity: 69%, clouds: 84%
36km/hhumidity: 67%, clouds: 70%
34km/hhumidity: 69%, clouds: 82%
38km/hhumidity: 70%, clouds: 98%
41km/hhumidity: 70%, clouds: 93%
38km/hhumidity: 66%, clouds: 100%
38km/hhumidity: 65%, clouds: 99%
39km/hhumidity: 60%, clouds: 100%
38km/hhumidity: 61%, clouds: 100%
33km/hhumidity: 63%, clouds: 97%
37km/hhumidity: 71%, clouds: 99%
38km/hhumidity: 74%, clouds: 100%
38km/hhumidity: 69%, clouds: 100%
35km/hhumidity: 65%, clouds: 100%
33km/hhumidity: 64%, clouds: 90%
42km/hhumidity: 69%, clouds: 80%
34km/hhumidity: 67%, clouds: 86%
30km/hhumidity: 64%, clouds: 4%
31km/hhumidity: 67%, clouds: 8%
31km/hhumidity: 63%, clouds: 0%
33km/hhumidity: 73%, clouds: 0%
35km/hhumidity: 73%, clouds: 0%
34km/hhumidity: 74%, clouds: 0%
40km/hhumidity: 76%, clouds: 41%
38km/hhumidity: 72%, clouds: 44%
30km/hhumidity: 72%, clouds: 91%
28km/hhumidity: 71%, clouds: 66%
