Nearby Harbors
32.7533’ N, 79.8767’ W

Fort Sumter, SC

78°
H 79°
L 69°
ENE
4mph
High tide
7:10 pm
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Fort Sumter, SC Weather Forecast and Current Conditions

Day Sky High / Low Precip Wind Humidity
Thu
Oct 8 		Partly Cloudy
Close Hourly 		79º / 69º 2% ENE 5 mph 66%
3pm Partly Cloudy 78º 1% ENE 4 mph 64%
4pm Partly Cloudy 78º 1% ENE 4 mph 64%
5pm Mostly Cloudy 77º 1% ENE 4 mph 68%
6pm Cloudy 76º 2% ENE 5 mph 74%
7pm Cloudy 75º 2% ENE 4 mph 80%
8pm Cloudy 73º 2% NE 3 mph 85%
9pm Cloudy 72º 3% NE 3 mph 87%
10pm Cloudy 71º 5% NE 3 mph 90%
11pm Cloudy 71º 6% NE 3 mph 92%
Fri
Oct 9 		Cloudy
View Hourly 		79º / 73º 16% NE 12 mph 80%
12am Cloudy 71º 6% NNE 3 mph 94%
1am Cloudy 70º 6% NNE 3 mph 96%
2am Cloudy 70º 12% NNE 4 mph 97%
3am Cloudy 70º 8% NNE 5 mph 97%
4am Cloudy 70º 11% NNE 5 mph 95%
5am Cloudy 70º 8% NNE 5 mph 95%
6am Cloudy 70º 7% NNE 6 mph 93%
7am Cloudy 70º 7% NNE 6 mph 93%
8am Cloudy 70º 11% NNE 6 mph 92%
9am Cloudy 72º 10% NNE 7 mph 84%
10am Cloudy 74º 12% NNE 8 mph 78%
11am Cloudy 76º 9% NE 9 mph 74%
12pm Cloudy 77º 10% NE 10 mph 74%
1pm Cloudy 78º 12% NE 12 mph 72%
2pm Cloudy 77º 12% ENE 11 mph 77%
3pm Cloudy 77º 13% ENE 12 mph 79%
4pm Cloudy 77º 13% ENE 11 mph 79%
5pm Cloudy 77º 10% ENE 11 mph 80%
6pm Cloudy 76º 17% NE 11 mph 80%
7pm Cloudy 75º 18% NE 11 mph 87%
8pm Few Showers 74º 33% NE 10 mph 91%
9pm Showers 74º 38% NE 11 mph 92%
10pm Showers 74º 37% NE 11 mph 92%
11pm Showers 75º 40% ENE 11 mph 92%
Sat
Oct 10 		Heavy Thunderstorms
View Hourly 		79º / 75º 96% E 15 mph 95%
12am Rain 74º 66% ENE 12 mph 92%
1am Showers 74º 58% ENE 11 mph 95%
2am Rain 74º 62% ENE 12 mph 94%
3am Rain 74º 61% ENE 12 mph 95%
4am Rain 74º 65% ENE 12 mph 95%
5am Rain 74º 76% ENE 12 mph 96%
6am Rain 74º 78% ENE 14 mph 97%
7am Thunderstorms 74º 76% E 12 mph 96%
8am Thunderstorms 74º 91% E 13 mph 95%
9am Thunderstorms 75º 92% E 13 mph 95%
10am Thunderstorms 75º 85% E 12 mph 96%
11am Thunderstorms 76º 70% E 14 mph 95%
12pm Thunderstorms 77º 96% E 13 mph 94%
1pm Heavy Thunderstorms 78º 91% E 14 mph 94%
2pm Heavy Thunderstorms 78º 97% E 14 mph 94%
Sun
Oct 11 		Thunderstorms 81º / 65º 81% SSW 14 mph 87%
Mon
Oct 12 		Mostly Sunny 83º / 66º 19% WNW 9 mph 74%
Tue
Oct 13 		Sunny 85º / 66º 6% WNW 4 mph 72%
Wed
Oct 14 		Sunny 85º / 68º 6% WSW 7 mph 74%
Thu
Oct 15 		Mostly Sunny 83º / 67º 7% ENE 8 mph 75%

Weather Radar for Fort Sumter, SC See Radar

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* Playback displays weather for the past 6 hours.

NOAA Weather Marine Forecast for Fort Sumter, SC

This Afternoon
High : 77ºF
ENE wind around 9 kt. Mostly cloudy. Seas around 2 ft.
Tonight
Low : 72ºF
ENE wind around 7 kt. Cloudy. Seas around 2 ft.
Friday
High : 77ºF
NNE wind 12 to 17 kt. Mostly cloudy. Seas 2 to 3 ft.
Friday Night
Low : 75ºF
ENE wind 18 to 22 kt. A chance of showers after 2am. Seas 4 to 5 ft.
Saturday
High : 78ºF
E wind 24 to 27 kt, with gusts as high as 33 kt. Showers, with thunderstorms also possible after 11am. Some of the storms could produce heavy rainfall. Seas 5 to 6 ft.
Saturday Night
Low : 76ºF
E wind 25 to 28 kt becoming SE 22 to 25 kt after midnight. Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Seas 6 to 7 ft.
Sunday
High : 79ºF
SSW wind 17 to 19 kt. Showers and possibly a thunderstorm. Seas 4 to 5 ft.
Sunday Night
Low : 72ºF
SSW wind 14 to 16 kt becoming WSW after midnight. Winds could gust as high as 22 kt. Showers likely and possibly a thunderstorm before 2am, then a chance of showers and thunderstorms after 2am. Seas 3 to 4 ft.
Columbus Day
High : 80ºF
W wind around 13 kt. A chance of showers and thunderstorms before 8am. Seas 2 to 3 ft.

NOAA Buoy Data Near Fort Sumter, SC See Map

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    Wind Speed Forecast for Fort Sumter, SC

    ThursdayFridaySaturday
    Wind Speed (MPH) 443569121111121214
    7pm11pm3am7am11am3pm7pm11pm3am7am11am3pm
    MPH 443569121111121214
    DIR ENEENENENNENNENEENENEENEENEEE

    Current Weather Conditions In Fort Sumter, SC

    As Of: 37 minutes ago

    • 78ºF
    • 78ºF
    • 4mph
    • 0º (ENE)
    • 4mph
    • Partly Cloudy
    • 10mi
    • 29.98"
    • 64%
    • 0ºF

    The weather right now in Fort Sumter, SC is Partly Cloudy. The current temperature is 78°F, and the expected high and low for today, Thursday, October 8, 2026, are 79° high temperature and 69°F low temperature. The wind is currently blowing at 4 miles per hour, and coming from the East Northeast. The wind is gusting to 4 mph. With the wind and the atmosphere the temperature feels like 78° Fahrenheit. Expected precipitation is 1 percent, with current humidity at 64 percent, and air pressure at 29.98 in. Visibility is 10 nautical miles. There are 1 current weather alert(s).

    Weather Alerts
    Coastal Flood Advisory - 10:49am Thu Oct 8 2026

    ...COASTAL FLOOD ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO 8 PM EDT THIS EVENING...

    WHAT: Up to one half foot of inundation above ground level
    expected along shorelines and tidal waterways (7.0 to 7.2 feet
    Mean Lower Low Water at Charleston).

    WHERE: Coastal Colleton and Charleston Counties.

    WHEN: From 5 PM this afternoon to 8 PM EDT this evening.

    IMPACTS: This could result in some roads becoming impassable.

    ADDITIONAL DETAILS: High tide will occur around 7:08 PM today
    at Charleston. Saltwater inundation will be possible 1 to 2
    hours before and after high tide.

    PRECAUTIONARY / PREPAREDNESS ACTIONS:

    If travel is required, allow extra time as some roads may be
    closed. Do not drive around barricades or through water of
    unknown depth. Take the necessary actions to protect flood-prone
    property.

    Visit water.weather.gov for additional water level and flood
    impact information.

    &&

    Time of high total tides are approximate to the nearest hour.

    Charleston Harbor SC
    MLLW Categories - Minor 7.0 ft, Moderate 7.5 ft, Major 8.0 ft
    MHHW Categories - Minor 1.2 ft, Moderate 1.7 ft, Major 2.2 ft

    Total Total Departure
    Day/Time Tide Tide from Norm Waves Flood
    ft MLLW ft MHHW ft ft Impact
    -------- --------- --------- --------- ------- --------
    08/07 PM 7.1 1.3 0.8 N/A Minor
    09/08 AM 7.1 1.3 0.7 N/A Minor
    09/08 PM 7.0 1.2 0.8 N/A Minor
    10/09 AM 7.7 1.9 1.3 N/A Moderate
    10/08 PM 7.5 1.7 1.6 N/A Moderate

    &&

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