Nearby Harbors
32.8333’ N, 79.7267’ W

South Dewees Island, SC

70°
H -°
L 66°
NNE
6mph
Low tide
10:34 pm
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South Dewees Island, SC Weather Forecast and Current Conditions

Day Sky High / Low Precip Wind Humidity
Mon
Oct 5 		Rain Early
Close Hourly 		-º / 66º 100% NNE 8 mph 97%
5pm Light Rain 70º 86% NNE 6 mph 97%
6pm Showers 70º 52% NNE 5 mph 96%
7pm Cloudy 70º 4% NNE 4 mph 96%
8pm Cloudy 70º 2% NNE 5 mph 96%
9pm Cloudy 69º 3% NNE 6 mph 98%
10pm Cloudy 69º 3% NNE 6 mph 99%
11pm Cloudy 68º 4% NNE 8 mph 100%
Tue
Oct 6 		Cloudy
View Hourly 		78º / 63º 18% NE 16 mph 78%
12am Cloudy 68º 8% NNE 6 mph 100%
1am Cloudy 67º 7% NNE 6 mph 100%
2am Cloudy 67º 8% NNE 7 mph 97%
3am Cloudy 67º 8% NNE 7 mph 96%
4am Cloudy 67º 7% NNE 8 mph 94%
5am Cloudy 67º 11% NNE 8 mph 92%
6am Cloudy 67º 10% NNE 8 mph 91%
7am Cloudy 68º 12% NNE 8 mph 89%
8am Cloudy 67º 14% NNE 10 mph 92%
9am Cloudy 69º 17% NE 10 mph 88%
10am Cloudy 71º 19% NE 11 mph 83%
11am Cloudy 73º 5% NE 12 mph 79%
12pm Cloudy 75º 5% NE 14 mph 76%
1pm Cloudy 76º 5% NE 15 mph 73%
2pm Cloudy 77º 6% NE 16 mph 72%
3pm Cloudy 77º 6% NE 16 mph 72%
4pm Cloudy 76º 6% NE 15 mph 71%
5pm Cloudy 75º 4% NE 15 mph 72%
6pm Cloudy 75º 4% NE 13 mph 72%
7pm Cloudy 74º 4% NE 12 mph 73%
8pm Mostly Cloudy 72º 2% NE 10 mph 79%
9pm Cloudy 71º 2% NE 10 mph 84%
10pm Partly Cloudy 71º 2% NE 10 mph 84%
11pm Mostly Cloudy 70º 2% NE 9 mph 86%
Wed
Oct 7 		Partly Cloudy
View Hourly 		80º / 64º 4% NE 11 mph 75%
12am Mostly Cloudy 69º 3% NNE 9 mph 87%
1am Mostly Cloudy 68º 3% NNE 8 mph 89%
2am Partly Cloudy 67º 4% NNE 8 mph 89%
3am Mostly Cloudy 66º 4% NNE 8 mph 90%
4am Mostly Cloudy 66º 4% NNE 8 mph 88%
5am Cloudy 65º 4% NNE 8 mph 88%
6am Mostly Cloudy 65º 4% NNE 9 mph 89%
7am Cloudy 64º 5% NNE 9 mph 89%
8am Mostly Cloudy 64º 5% NNE 9 mph 91%
9am Mostly Cloudy 66º 4% NNE 10 mph 88%
10am Partly Cloudy 69º 3% NNE 10 mph 82%
11am Partly Cloudy 73º 2% NNE 11 mph 76%
12pm Partly Cloudy 75º 1% NE 11 mph 73%
1pm Mostly Sunny 77º 1% NE 11 mph 69%
2pm Partly Cloudy 78º 0% NE 11 mph 67%
3pm Partly Cloudy 79º 0% NE 11 mph 64%
4pm Partly Cloudy 78º 0% ENE 11 mph 64%
Thu
Oct 8 		Cloudy 81º / 67º 4% NE 8 mph 72%
Fri
Oct 9 		Cloudy 79º / 68º 19% NE 11 mph 80%
Sat
Oct 10 		Rain 75º / 69º 77% ENE 18 mph 93%
Sun
Oct 11 		Thunderstorms 77º / 67º 78% ESE 14 mph 93%
Mon
Oct 12 		Showers 76º / 64º 64% WNW 11 mph 89%

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

Late Afternoon
High : 73ºF
NNE wind around 10 kt. A slight chance of showers before 5pm. Seas around 2 ft.
Tonight
Low : 68ºF
NE wind 10 to 12 kt. Cloudy. Seas around 2 ft.
Tuesday
High : 74ºF
NE wind 16 to 19 kt increasing to 21 to 24 kt in the afternoon. A slight chance of showers, mainly between 2pm and 3pm. Seas 3 ft building to 5 ft.
Tuesday Night
Low : 68ºF
NE wind 17 to 20 kt decreasing to 14 to 17 kt after midnight. Mostly cloudy. Seas 5 to 6 ft.
Wednesday
High : 75ºF
NE wind 15 to 17 kt. Partly sunny. Seas 4 to 5 ft.
Wednesday Night
Low : 66ºF
NNE wind 7 to 10 kt. Mostly cloudy. Seas 3 to 4 ft.
Thursday
High : 76ºF
NNE wind around 10 kt. Partly sunny. Seas around 3 ft.
Thursday Night
Low : 68ºF
ENE wind around 6 kt becoming variable and less than 5 kt. Mostly cloudy. Seas 2 to 3 ft.
Friday
High : 77ºF
ENE wind 8 to 11 kt increasing to 11 to 14 kt in the afternoon. Winds could gust as high as 20 kt. A slight chance of showers. Seas around 3 ft.

NOAA Buoy Data Near South Dewees Island, SC See Map

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    Wind Speed Forecast for South Dewees Island, SC

    MondayTuesdayWednesday
    Wind Speed (MPH) 666810151510881011
    9pm1am5am9am1pm5pm9pm1am5am9am1pm5pm
    MPH 666810151510881011
    DIR NNENNENNENNENENENENENNENNENNENE

    Current Weather Conditions In South Dewees Island, SC

    As Of: 20 minutes ago

    • 70ºF
    • 70ºF
    • 6mph
    • 0º (NNE)
    • 6mph
    • Light Rain
    • 6mi
    • 29.99"
    • 97%
    • 0ºF

    The weather right now in South Dewees Island, SC is Light Rain. The current temperature is 70°F, and the expected high and low for today, Monday, October 5, 2026, are -° high temperature and 66°F low temperature. The wind is currently blowing at 6 miles per hour, and coming from the North Northeast. The wind is gusting to 6 mph. With the wind and the atmosphere the temperature feels like 70° Fahrenheit. Expected precipitation is 86 percent, with current humidity at 97 percent, and air pressure at 29.99 in. Visibility is 6 nautical miles. There are 2 current weather alert(s).

    Weather Alerts
    Rip Current Statement - 2:17pm Mon Oct 5 2026

    ...HIGH RIP CURRENT RISK IN EFFECT FROM TUESDAY MORNING THROUGH TUESDAY EVENING...

    WHAT: Dangerous rip currents expected.

    WHERE: South Carolina Beaches, and Georgia Beaches.

    WHEN: From Tuesday morning through Tuesday evening.

    IMPACTS: Rip currents can sweep even the best swimmers away
    from shore into deeper water.

    ADDITIONAL DETAILS: High surf with breaking waves of 4 to 6
    feet along the lower South Carolina coast and 5 to 7 feet along
    the Georgia coast will occur. The combination of strong
    northeast winds, elevated tides and large breaking waves will
    increase the risk for significant beach erosion. A High Surf
    Advisory may be issued for Tuesday and Tuesday night.

    PRECAUTIONARY / PREPAREDNESS ACTIONS:

    Swim near a lifeguard. If caught in a rip current, relax and
    float. Don't swim against the current. If able, swim in a
    direction following the shoreline. If unable to escape, face the
    shore and call or wave for help.

    &&

    Gale Warning - 2:14pm Mon Oct 5 2026

    ...GALE WARNING IN EFFECT FROM 5 AM TUESDAY TO 2 AM EDT WEDNESDAY...

    WHAT: Northeast winds 25 to 30 kt with gusts up to 35 kt and
    seas 5 to 8 ft expected.

    WHERE: South Santee River to Edisto Beach out 20 NM.

    WHEN: From 5 AM Tuesday to 2 AM EDT Wednesday.

    IMPACTS: Strong winds will cause hazardous seas which could
    capsize or damage vessels and reduce visibility.

    PRECAUTIONARY / PREPAREDNESS ACTIONS:

    Mariners should alter plans to avoid these hazardous conditions.
    Remain in port, seek safe harbor, alter course, and/or secure the
    vessel for hazardous conditions.

    &&

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