Nearby Harbors
32.8333’ N, 79.7267’ W

South Dewees Island, SC

77°
H -°
L 75°
SW
3mph
Low tide
3:01 am
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South Dewees Island, SC Weather Forecast and Current Conditions

Day Sky High / Low Precip Wind Humidity
Fri
Sep 11 		Scattered Thunderstorms -º / 75º 42% SW 3 mph 97%
Sat
Sep 12 		Partly Cloudy
View Hourly 		85º / 77º 24% SSW 10 mph 87%
12am Isolated Thunderstorms 77º 34% SW 3 mph 97%
1am Isolated Thunderstorms 77º 34% SW 3 mph 95%
2am Partly Cloudy 77º 11% SW 3 mph 97%
3am Mostly Cloudy 77º 8% SW 3 mph 98%
4am Partly Cloudy 77º 9% WSW 3 mph 97%
5am Partly Cloudy 76º 11% WSW 2 mph 98%
6am Partly Cloudy 76º 13% WSW 1 mph 100%
7am Partly Cloudy 76º 24% W 1 mph 100%
8am Mostly Cloudy 77º 22% WSW 2 mph 97%
9am Mostly Cloudy 79º 22% WSW 3 mph 93%
10am Mostly Cloudy 81º 23% WSW 3 mph 88%
11am Mostly Cloudy 83º 24% SW 2 mph 83%
12pm Mostly Cloudy 84º 23% SSW 4 mph 82%
1pm Mostly Cloudy 84º 24% S 7 mph 83%
2pm Mostly Cloudy 84º 21% S 7 mph 82%
3pm Partly Cloudy 84º 24% S 8 mph 83%
4pm Mostly Cloudy 84º 14% S 9 mph 84%
5pm Partly Cloudy 83º 8% S 10 mph 83%
6pm Partly Cloudy 83º 12% S 9 mph 86%
7pm Partly Cloudy 82º 12% S 9 mph 88%
8pm Partly Cloudy 81º 17% S 7 mph 90%
9pm Partly Cloudy 81º 15% SSW 7 mph 90%
10pm Partly Cloudy 80º 15% SSW 6 mph 93%
11pm Mostly Cloudy 80º 15% SSW 6 mph 92%
Sun
Sep 13 		PM Thunderstorms
View Hourly 		88º / 76º 42% SW 9 mph 82%
12am Mostly Cloudy 80º 9% SSW 6 mph 92%
1am Mostly Cloudy 80º 9% SSW 6 mph 94%
2am Partly Cloudy 79º 19% SSW 6 mph 97%
3am Mostly Cloudy 79º 15% SW 5 mph 94%
4am Mostly Cloudy 79º 19% WSW 5 mph 95%
5am Mostly Cloudy 78º 24% WSW 4 mph 96%
6am Mostly Cloudy 78º 22% WSW 3 mph 95%
7am Mostly Cloudy 78º 15% WSW 2 mph 95%
8am Mostly Cloudy 79º 9% W 3 mph 94%
9am Partly Cloudy 81º 8% W 4 mph 90%
10am Partly Cloudy 83º 7% W 4 mph 84%
11am Partly Cloudy 84º 8% W 4 mph 79%
12pm Partly Cloudy 86º 8% SW 5 mph 76%
1pm Partly Cloudy 86º 22% SSW 7 mph 77%
2pm Scattered Thunderstorms 87º 37% SSW 8 mph 77%
3pm Mostly Cloudy 86º 24% SSW 8 mph 77%
4pm Isolated Thunderstorms 86º 33% SSW 8 mph 77%
5pm Scattered Thunderstorms 85º 42% SSW 8 mph 79%
6pm Mostly Cloudy 84º 15% SSW 7 mph 84%
7pm Partly Cloudy 83º 13% SSW 7 mph 87%
8pm Partly Cloudy 82º 14% SW 6 mph 90%
9pm Clear 81º 13% SW 5 mph 92%
10pm Mostly Clear 81º 10% SW 5 mph 93%
11pm Partly Cloudy 81º 11% SW 4 mph 94%
Mon
Sep 14 		Mostly Sunny 90º / 76º 17% N 6 mph 80%
Tue
Sep 15 		AM Showers 84º / 71º 33% ENE 17 mph 78%
Wed
Sep 16 		Partly Cloudy 83º / 71º 15% NE 16 mph 71%
Thu
Sep 17 		Mostly Sunny 84º / 72º 10% NE 12 mph 74%
Fri
Sep 18 		Partly Cloudy 85º / 73º 22% ENE 8 mph 78%

Weather Radar for South Dewees Island, SC See Radar

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* Playback displays weather for the past 6 hours.

NOAA Weather Marine Forecast for South Dewees Island, SC

Overnight
Low : 78ºF
SW wind around 7 kt. A slight chance of showers and thunderstorms after 2am. Seas around 2 ft.
Saturday
High : 83ºF
Variable winds less than 5 kt becoming SSW 5 to 8 kt in the afternoon. A chance of showers and thunderstorms, mainly between 7am and 3pm. Seas 1 to 2 ft.
Saturday Night
Low : 79ºF
S wind 7 to 9 kt. A chance of showers and thunderstorms, mainly after 4am. Seas around 2 ft.
Sunday
High : 83ºF
WSW wind 5 to 9 kt becoming SSW in the afternoon. A chance of showers and thunderstorms before 8am, then a chance of showers and thunderstorms after 2pm. Seas around 2 ft.
Sunday Night
Low : 79ºF
SSW wind 5 to 8 kt becoming WSW after midnight. A chance of showers and thunderstorms, mainly before 8pm. Seas around 2 ft.
Monday
High : 85ºF
Variable winds 5 kt or less. A slight chance of showers and thunderstorms after 2pm. Seas around 2 ft.
Monday Night
Low : 78ºF
Variable winds less than 5 kt becoming NE around 6 kt after midnight. A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers and thunderstorms after 2am. Seas around 2 ft.
Tuesday
High : 82ºF
ENE wind 15 to 19 kt, with gusts as high as 25 kt. A slight chance of showers and thunderstorms. Seas 2 ft building to 4 ft.
Tuesday Night
Low : 73ºF
ENE wind 13 to 15 kt, with gusts as high as 21 kt. Partly cloudy. Seas around 4 ft.

NOAA Buoy Data Near South Dewees Island, SC See Map

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    Wind Speed Forecast for South Dewees Island, SC

    SaturdaySundayMonday
    Wind Speed (MPH) 332497653586
    4am8am12pm4pm8pm12am4am8am12pm4pm8pm12am
    MPH 332497653586
    DIR SWWSWWSWSSWSSSSWWSWWSWSSWSW

    Current Weather Conditions In South Dewees Island, SC

    As Of: 29 minutes ago

    • 77ºF
    • 77ºF
    • 3mph
    • 0º (SW)
    • 3mph
    • Isolated Thunderstorms
    • 8mi
    • 29.99"
    • 97%
    • 0ºF

    The weather right now in South Dewees Island, SC is Isolated Thunderstorms. The current temperature is 77°F, and the expected high and low for today, Saturday, September 12, 2026, are -° high temperature and 75°F low temperature. The wind is currently blowing at 3 miles per hour, and coming from the Southwest. The wind is gusting to 3 mph. With the wind and the atmosphere the temperature feels like 77° Fahrenheit. Expected precipitation is 34 percent, with current humidity at 97 percent, and air pressure at 29.99 in. Visibility is 8 nautical miles. There are no current weather alert(s).

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