HomeForecastsSouth Carolina ForecastsFort Sumter, SC Marine Weather

Fort Sumter, SC Marine Weather Forecast

Station CHTS1 - 8665530 - Charleston, Cooper River Entrance, SC

June 20, 2025 6:30 pm EDT
Location: 32.781N 79.924W
Wind Direction: S (190°)
Wind Speed: 9.9 knots
Wind Gust: 13.0 knots
Atmospheric Pressure: 30.04 in (1017.3 mb)
Air Temperature: 83.5°F (28.6°C)
Water Temperature: 82.4°F (28.0°C)


This Afternoon - 87°F
Jun 20, 2025
9 to 16 mph S
Mostly Sunny
Mostly sunny, with a high near 87. South wind 9 to 16 mph.
Tonight - 79°F
Jun 20, 2025
1 to 16 mph SW
Mostly Clear
Mostly clear, with a low around 79. Southwest wind 1 to 16 mph.
Saturday - 89°F
Jun 21, 2025
0 to 10 mph S
Sunny then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms between noon and 4pm. Sunny, with a high near 89. Heat index values as high as 102. South wind 0 to 10 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Saturday Night - 76°F
Jun 21, 2025
2 to 9 mph S
Mostly Clear
Mostly clear, with a low around 76. South wind 2 to 9 mph. New rainfall amounts less than a tenth of an inch possible.
Sunday - 89°F
Jun 22, 2025
2 to 9 mph S
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms between 8am and 2pm. Sunny, with a high near 89. South wind 2 to 9 mph. Chance of precipitation is 20%.
Sunday Night - 75°F
Jun 22, 2025
2 to 8 mph S
Mostly Clear
Mostly clear, with a low around 75.
Monday - 91°F
Jun 23, 2025
2 to 9 mph SW
Sunny
Sunny, with a high near 91.
Monday Night - 75°F
Jun 23, 2025
2 to 8 mph SW
Clear
Clear, with a low around 75.
Tuesday - 92°F
Jun 24, 2025
2 to 9 mph SW
Sunny
Sunny, with a high near 92.
Tuesday Night - 76°F
Jun 24, 2025
3 to 9 mph SW
Mostly Clear
Mostly clear, with a low around 76.
Wednesday - 93°F
Jun 25, 2025
3 to 10 mph SW
Sunny
Sunny, with a high near 93.
Wednesday Night - 76°F
Jun 25, 2025
5 to 9 mph SW
Mostly Clear
Mostly clear, with a low around 76.
Thursday - 93°F
Jun 26, 2025
5 to 10 mph SW
Sunny
Sunny, with a high near 93.
Thursday Night - 76°F
Jun 26, 2025
6 to 10 mph SW
Mostly Clear
Mostly clear, with a low around 76.

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