The most detailed information about the water temperature in Charleston in Atlantic Ocean (South Carolina, 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 Charleston for a week.
Water temperature in Charleston right now
data updated 36 minutes ago65°F
yesterday: 64°F
a week ago: 61°F
Trend: slow rise
Today water temperature in Charleston is 65.7°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 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 66°F. Water temperature range in Charleston in April is from 59 to 73 degrees.
According to our forecast, the water temperature in Charleston will slowly rise for at least the next 10 days and reach a value of 67°F.
Table of water temperature values in Charleston
| Day | Fact* | Average** | Forecast*** |
| Apr 11 | 17.2°C | 18.8°C | |
| Apr 12 | 18.0°C | 19.3°C | |
| Apr 13 | 17.1°C | 18.8°C | |
| Apr 14 | 17.3°C | 19.0°C | |
| Apr 15 | 17.5°C | 19.5°C | |
| Apr 16 | 18.9°C | 20.0°C | |
| Apr 17 | 18.3°C | 19.3°C | |
| Apr 18 | 18.7°C | 19.8°C | |
| Apr 19 | 20.3°C | 19.2°C | |
| Apr 20 | 20.0°C | 18.9°C | |
| Apr 21 | 20.3°C | 19.2°C | |
| Apr 22 | 20.3°C | 19.2°C | |
| Apr 23 | 21.0°C | 19.8°C | |
| Apr 24 | 21.0°C | 19.8°C | |
| Apr 25 | 21.3°C | 20.1°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 Charleston
Water temperature in Charleston by month
Charleston located in the northern hemisphere, at latitude 32 degrees. The comfortable water temperature for swimming is set here in April, usually in the middle of the month. During a year in Charleston there are 233 days of swimming. In general, the swimming season ends In December. Average annual water temperature on the coast in Charleston is 72°F, by the seasons: in winter 62°F, in spring 68°F, in summer 82°F, in autumn 77°F. Minimum water temperature (56°F) in Charleston it happens in January, maximum (86°F) in July.
You can find out detailed data on how the water temperature in Charleston changes in each specific month:
Charleston: general information and map
Neighboring cities and resorts
| City | Water* | Distance** |
| Sullivan's Island | 65°C | 8km |
| Folly Beach | 64°C | 13km |
| Isle of Palms | 65°C | 17km |
| Kiawah Island | 64°C | 22km |
| Dewees Island | 64°C | 22km |
| Seabrook Island | 64°C | 32km |
| Boneyard Beach | 66°C | 35km |
| Edisto Beach | 64°C | 49km |
| Fripp Island | 64°C | 73km |
| Parris Island | 65°C  | 88km |
| Hilton Head Island | 65°C | 99km |
** 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 Charleston 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 17 kilometers. This is Charleston Air Force Base-International (CHS) airport. We have no information as to whether it is valid and what flights it receives or sends.
Charleston: weather forecast
The weather forecast is shown in local time in Charleston
20km/hhumidity: 66%, clouds: 13%
10km/hhumidity: 83%, clouds: 12%
10km/hhumidity: 86%, clouds: 6%
12km/hhumidity: 88%, clouds: 9%
9km/hhumidity: 89%, clouds: 75%
3km/hhumidity: 80%, clouds: 89%
4km/hhumidity: 61%, clouds: 94%
14km/hhumidity: 60%, clouds: 65%
13km/hhumidity: 65%, clouds: 38%
10km/hhumidity: 83%, clouds: 58%
12km/hhumidity: 86%, clouds: 48%
11km/hhumidity: 89%, clouds: 74%
10km/hhumidity: 89%, clouds: 10%
7km/hhumidity: 85%, clouds: 26%
10km/hhumidity: 65%, clouds: 60%
13km/hhumidity: 59%, clouds: 55%
16km/hhumidity: 84%, clouds: 76%
17km/hhumidity: 90%, clouds: 88%
6km/hhumidity: 93%, clouds: 90%
3km/hhumidity: 95%, clouds: 96%
6km/hhumidity: 97%, clouds: 100%
14km/hhumidity: 97%, clouds: 98%
17km/hhumidity: 89%, clouds: 98%
11km/hhumidity: 82%, clouds: 96%
11km/hhumidity: 86%, clouds: 100%
12km/hhumidity: 94%, clouds: 100%
12km/hhumidity: 96%, clouds: 100%
7km/hhumidity: 96%, clouds: 100%
9km/hhumidity: 95%, clouds: 99%
10km/hhumidity: 92%, clouds: 99%
9km/hhumidity: 87%, clouds: 100%
11km/hhumidity: 83%, clouds: 100%
16km/hhumidity: 84%, clouds: 100%
20km/hhumidity: 84%, clouds: 100%
14km/hhumidity: 91%, clouds: 26%
10km/hhumidity: 95%, clouds: 16%
