National Weather Service Marine Forecast FZUS52 KCHS

FZUS52 KCHS 111050
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
650 AM EDT Fri Sep 11 2026

South Santee River SC to Altamaha Sound GA out 60 NM, including Charleston Harbor and Grays Reef National Marine Sanctuary

AMZ300-120000
650 AM EDT Fri Sep 11 2026

.Synopsis for the coastal waters of south coastal South Carolina and north coastal Georgia... High pressure will persist in the Atlantic while unsettled conditions prevail over the Southeast U.S. These conditions will last through the weekend, and possibly into the middle of next week.

---

AMZ340-120000
Charleston Harbor
650 AM EDT Fri Sep 11 2026

TODAY
SW winds 5 to 10 kt. A slight chance of showers and tstms late this morning. A chance of showers and tstms this afternoon.

TONIGHT
SW winds 5 to 10 kt. A slight chance of showers and tstms in the evening, then a chance of showers and tstms after midnight.

SAT
SW winds 5 to 10 kt. A chance of showers. A slight chance of tstms in the morning, then a chance of tstms in the afternoon.

SAT NIGHT
SW winds 5 to 10 kt. A slight chance of showers and tstms in the evening, then showers likely with a chance of tstms after midnight.

SUN
SW winds 5 to 10 kt. A chance of tstms. Showers likely, mainly in the morning.

SUN NIGHT
SW winds 5 to 10 kt. A chance of showers and tstms.

MON
SW winds 5 kt. A slight chance of showers and tstms.

MON NIGHT
E winds 5 kt.

TUE
NE winds 10 to 15 kt. A slight chance of showers and tstms.

TUE NIGHT
E winds 10 to 15 kt.

Winds and waves higher in and near tstms.

Unless otherwise noted, waves 1 foot or less.

Charleston Harbor water temperature 84 degrees.

---

AMZ360-120000
Coastal waters from South Santee River to Edisto Beach SC out 20 NM
650 AM EDT Fri Sep 11 2026

TODAY
SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 8 seconds and S 1 foot at 4 seconds. A slight chance of showers and tstms this morning, then a chance of showers and tstms early this afternoon.

TONIGHT
SW winds 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and S 2 ft at 4 seconds. A slight chance of showers and tstms after midnight.

SAT
SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 4 seconds and SE 2 ft at 8 seconds. A chance of showers and tstms, mainly in the morning.

SAT NIGHT
SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and S 2 ft at 4 seconds. Showers likely with a chance of tstms after midnight.

SUN
SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and S 2 ft at 4 seconds. Showers likely with a chance of tstms in the morning, then a slight chance of showers and tstms in the afternoon.

SUN NIGHT
SW winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 9 seconds. A chance of showers and tstms.

MON
SW winds 5 to 10 kt. Seas 2 to 3 ft.

MON NIGHT
E winds 5 to 10 kt. Seas 2 ft.

TUE
NE winds 15 to 20 kt. Seas 3 to 4 ft. A slight chance of showers and tstms.

TUE NIGHT
E winds 15 to 20 kt. Seas 4 to 5 ft.

Winds and seas higher in and near tstms.

---

AMZ362-120000
Coastal waters from Edisto Beach SC to Savannah GA out 20 NM
650 AM EDT Fri Sep 11 2026

TODAY
SW winds 5 to 10 kt, becoming S late. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds. A chance of showers and tstms early this morning, then a slight chance of showers and tstms late this morning and early afternoon.

TONIGHT
SW winds 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds. A slight chance of showers and tstms in the evening, then a chance of showers and tstms after midnight.

SAT
SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 4 seconds and SE 2 ft at 8 seconds. A chance of showers and tstms in the morning.

SAT NIGHT
SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and S 2 ft at 4 seconds. A slight chance of showers and tstms in the evening, then showers likely with a chance of tstms after midnight.

SUN
SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 4 seconds and SE 2 ft at 8 seconds. Showers likely with a chance of tstms in the morning, then a slight chance of showers and tstms in the afternoon.

SUN NIGHT
SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 9 seconds. A chance of showers and tstms.

MON
SW winds 5 to 10 kt. Seas 2 to 3 ft.

MON NIGHT
SE winds 5 kt. Seas 2 ft. A slight chance of showers and tstms.

TUE
NE winds 15 to 20 kt. Seas 3 to 4 ft. A chance of showers with a slight chance of tstms.

TUE NIGHT
E winds 15 to 20 kt. Seas 4 to 5 ft.

Winds and seas higher in and near tstms.

---

AMZ364-120000
Coastal waters from Savannah GA to Altamaha Sound GA out 20 nm, including Grays Reef National Marine Sanctuary
650 AM EDT Fri Sep 11 2026

TODAY
SW winds 5 to 10 kt, becoming S late. Seas 2 to 3 ft. Wave Detail: E 3 ft at 7 seconds. A slight chance of showers and tstms early this morning. A slight chance of showers and tstms late.

TONIGHT
SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds and S 1 foot at 4 seconds. A slight chance of showers and tstms in the evening, then a chance of showers and tstms after midnight.

SAT
SW winds 5 to 10 kt, becoming S in the afternoon. Seas 2 ft. Wave Detail: SE 2 ft at 8 seconds and S 1 foot at 4 seconds. A slight chance of showers and tstms.

SAT NIGHT
S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and S 2 ft at 4 seconds. A chance of showers and tstms.

SUN
W winds 5 to 10 kt, becoming S in the afternoon. Seas 2 ft. Wave Detail: SE 2 ft at 4 seconds and SE 2 ft at 8 seconds. A slight chance of tstms. A chance of showers, mainly in the morning.

SUN NIGHT
SW winds 5 to 10 kt. Seas 2 ft. Wave Detail: SE 2 ft at 9 seconds. A chance of showers and tstms.

MON
SW winds 5 to 10 kt. Seas 2 ft.

MON NIGHT
SE winds 5 kt. Seas 2 ft. A slight chance of showers and tstms.

TUE
NE winds 15 to 20 kt. Seas 3 to 4 ft. A chance of showers and tstms.

TUE NIGHT
E winds 20 to 25 kt. Seas 4 to 5 ft. A slight chance of showers and tstms.

Winds and seas higher in and near tstms.

---

AMZ380-120000
Waters from South Santee River SC to Edisto Beach SC extending from 20 to 60 NM
650 AM EDT Fri Sep 11 2026

TODAY
SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and SW 2 ft at 4 seconds. A chance of showers and tstms until late afternoon.

TONIGHT
SW winds 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and SW 2 ft at 4 seconds. A chance of showers and tstms after midnight.

SAT
SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and SW 2 ft at 4 seconds. A chance of showers and tstms.

SAT NIGHT
SW winds 10 to 15 kt. Seas 3 ft. Wave Detail: SE 3 ft at 8 seconds and SW 2 ft at 4 seconds. A slight chance of showers and tstms in the evening, then showers likely with a chance of tstms after midnight.

SUN
SW winds 10 kt. Seas 3 ft. Wave Detail: SE 3 ft at 9 seconds and SW 2 ft at 4 seconds. A chance of tstms. Showers likely, mainly in the morning.

SUN NIGHT
SW winds 10 kt. Seas 3 ft. Wave Detail: SE 3 ft at 9 seconds. A chance of tstms. A chance of showers in the evening, then showers likely after midnight.

MON
NW winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance of showers and tstms.

MON NIGHT
E winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance of showers and tstms.

TUE
NE winds 15 to 20 kt. Seas 3 to 4 ft. A slight chance of showers and tstms.

TUE NIGHT
E winds 15 to 20 kt. Seas 4 to 5 ft.

Winds and seas higher in and near tstms.

---

AMZ382-120000
Waters from Edisto Beach SC to Savannah GA extending from 20 to 60 NM
650 AM EDT Fri Sep 11 2026

TODAY
SW winds 5 to 10 kt. Seas 3 ft. Wave Detail: E 3 ft at 8 seconds and S 2 ft at 4 seconds. A chance of showers and tstms early this morning, then a slight chance of showers and tstms late this morning and early afternoon.

TONIGHT
SW winds 10 kt. Seas 3 ft. Wave Detail: SE 3 ft at 8 seconds. A slight chance of showers and tstms in the evening, then a chance of showers and tstms after midnight.

SAT
SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and SW 2 ft at 4 seconds. A chance of showers and tstms in the morning.

SAT NIGHT
SW winds 10 to 15 kt. Seas 3 ft. Wave Detail: SE 3 ft at 8 seconds and S 2 ft at 4 seconds. Showers likely with a chance of tstms after midnight.

SUN
SW winds 5 to 10 kt. Seas 3 ft. Wave Detail: SE 3 ft at 8 seconds and S 2 ft at 4 seconds. A chance of tstms. Showers likely, mainly in the morning.

SUN NIGHT
SW winds 10 kt. Seas 3 ft. Wave Detail: SE 3 ft at 9 seconds. A chance of showers and tstms.

MON
W winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance of showers and tstms.

MON NIGHT
E winds 5 to 10 kt. Seas 2 to 3 ft.

TUE
NE winds 15 to 20 kt. Seas 3 to 4 ft. A chance of showers with a slight chance of tstms.

TUE NIGHT
E winds 15 to 20 kt. Seas 4 to 5 ft.

Winds and seas higher in and near tstms.

---

AMZ384-120000
Waters from Savannah GA to Altamaha Sound GA extending from 20 to 60 NM
650 AM EDT Fri Sep 11 2026

TODAY
SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds. A slight chance of showers and tstms this morning.

TONIGHT
S winds 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and S 2 ft at 3 seconds. A slight chance of showers and tstms.

SAT
SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and SE 2 ft at 8 seconds. A chance of showers and tstms in the morning.

SAT NIGHT
S winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and S 2 ft at 4 seconds. A slight chance of showers and tstms in the evening, then showers likely with a chance of tstms after midnight.

SUN
SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and S 2 ft at 4 seconds. Showers likely with a chance of tstms in the morning, then a slight chance of showers and tstms in the afternoon.

SUN NIGHT
SW winds 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 9 seconds. A chance of showers and tstms.

MON
W winds 5 to 10 kt. Seas 2 to 3 ft. A slight chance of showers and tstms.

MON NIGHT
SE winds 5 kt. Seas 2 ft.

TUE
NE winds 15 to 20 kt. Seas 3 to 4 ft. A chance of showers and tstms.

TUE NIGHT
E winds 15 to 20 kt. Seas 4 to 5 ft. A slight chance of showers and tstms.

Winds and seas higher in and near tstms.