
The most detailed information about the water temperature in Jacksonville in Atlantic Ocean (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 Jacksonville for a week.
Water temperature in Jacksonville right now
data updated 35 minutes ago64°F

yesterday: 64°F
a week ago: 66°F
Trend: slow rise
Today water temperature in Jacksonville is 64.4°F. This is cool bathing water, but acceptable for short dives for physically fit and hardened people. Continuous exposure to such water for more than four hours can lead to severe hypothermia. 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 roughly corresponds to the average value 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 62°F. Water temperature range in Jacksonville in March is from 53 to 69 degrees.
According to our forecast, the water temperature in Jacksonville will slowly rise for at least the next 10 days and reach a value of 64°F.
Table of water temperature values in Jacksonville
Day | Fact* | Average** | Forecast*** |
Mar 18 | 18.3°C | 17.8°C | |
Mar 19 | 18.9°C | 18.3°C | |
Mar 20 | 18.6°C | 18.5°C | |
Mar 21 | 18.8°C | 17.8°C | |
Mar 22 | 18.3°C | 17.5°C | |
Mar 23 | 18.3°C | 17.8°C | |
Mar 24 | 18.3°C | 17.8°C | |
Mar 25 | 18.0°C | 18.3°C | |
Mar 26 | 18.8°C | 18.5°C | |
Mar 27 | 18.8°C | 18.5°C | |
Mar 28 | 19.0°C | 18.7°C | |
Mar 29 | 19.5°C | 19.2°C | |
Mar 30 | 19.3°C | 19.0°C | |
Mar 31 | 19.5°C | 19.2°C | |
Apr 1 | 18.8°C | 18.5°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 Jacksonville

Water temperature in Jacksonville by month
Jacksonville located in the northern hemisphere, at latitude 30 degrees. The comfortable water temperature for swimming is set here in April, almost always only at the end of the month. During a year in Jacksonville there are 212 days of swimming. In general, the swimming season ends In November. Average annual water temperature on the coast in Jacksonville is 71°F, by the seasons: in winter 59°F, in spring 67°F, in summer 81°F, in autumn 76°F. Minimum water temperature (55°F) in Jacksonville it happens in January, maximum (85°F) in August.
You can find out detailed data on how the water temperature in Jacksonville changes in each specific month:
Jacksonville: general information and map
Neighboring cities and resorts
City | Water* | Distance** |
Fernandina Beach | 64°C ![]() ![]() | 42km |
Saint Augustine | 65°C ![]() ![]() | 44km |
Palm Coast | 66°C ![]() ![]() | 82km |
Jekyll Island | 63°C ![]() ![]() | 87km |
Flagler Beach | 66°C ![]() ![]() | 93km |
Brunswick | 63°C ![]() ![]() | 93km |
Saint Simons | 63°C ![]() ![]() | 95km |
** 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 Jacksonville 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 12 kilometers. This is Jacksonville Executive at Craig (CRG) airport. We have no information as to whether it is valid and what flights it receives or sends.
Jacksonville: weather forecast
The weather forecast is shown in local time in Jacksonville


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