National Weather Service Marine Forecast FZUS52 KCHS

FZUS52 KCHS 081839
CWFCHS

Coastal Waters Forecast
National Weather Service Charleston SC
239 PM EDT Wed Jul 8 2026

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

AMZ300-090800
239 PM EDT Wed Jul 8 2026

.Synopsis for the coastal waters of south coastal South Carolina and north coastal Georgia... High pressure will persist over the region through this week.

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AMZ340-090800
Charleston Harbor
239 PM EDT Wed Jul 8 2026

TONIGHT
SW winds 10 to 15 kt with gusts to 20 kt.

THU
W winds 10 kt, becoming SW with gusts to 20 kt in the afternoon.

THU NIGHT
SW winds 10 to 15 kt with gusts to 20 kt.

FRI
SW winds 10 to 15 kt.

FRI NIGHT
SW winds 10 to 15 kt with gusts to 20 kt.

SAT
SW winds 10 to 15 kt. A slight chance of showers and tstms in the afternoon.

SAT NIGHT
SW winds 10 to 15 kt with gusts to 20 kt, diminishing to 5 to 10 kt after midnight. A chance of showers and tstms.

SUN
W winds 5 to 10 kt. Showers and tstms likely.

SUN NIGHT
SW winds 5 to 10 kt. Showers likely with a chance of tstms.

MON
N winds 5 to 10 kt. Showers and tstms likely.

MON NIGHT
NE winds 5 to 10 kt. Showers likely with a chance of tstms.

Winds and waves higher in and near tstms.

Unless otherwise noted, waves 1 foot or less.

Charleston Harbor water temperature 87 degrees.

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AMZ360-090800
Coastal waters from South Santee River to Edisto Beach SC out 20 NM
239 PM EDT Wed Jul 8 2026

TONIGHT
SW winds 15 to 20 kt. Seas 3 to 4 ft. Wave Detail: SW 4 ft at 5 seconds and SE 2 ft at 9 seconds.

THU
W winds 10 to 15 kt, becoming SW 15 to 20 kt in the afternoon. Seas 3 to 4 ft. Wave Detail: SW 4 ft at 5 seconds and SE 2 ft at 9 seconds.

THU NIGHT
SW winds 15 to 20 kt with gusts to 25 kt. Seas 4 to 5 ft. Wave Detail: SW 4 ft at 5 seconds and SE 2 ft at 9 seconds.

FRI
SW winds 15 to 20 kt with gusts to 25 kt. Seas 3 to 4 ft, building to 4 to 5 ft in the afternoon. Wave Detail: S 4 ft at 6 seconds and SE 2 ft at 9 seconds, becoming S 4 ft at 7 seconds.

FRI NIGHT
SW winds 15 to 20 kt with gusts to 25 kt. Seas 4 to 5 ft. Wave Detail: S 5 ft at 5 seconds and SE 2 ft at 9 seconds. A slight chance of showers and tstms in the evening.

SAT
SW winds 15 to 20 kt with gusts to 25 kt. Seas 4 to 5 ft, subsiding to 3 to 4 ft in the afternoon. Wave Detail: S 4 ft at 7 seconds. A slight chance of showers and tstms in the afternoon.

SAT NIGHT
SW winds 15 to 20 kt with gusts to 25 kt. Seas 4 to 5 ft, subsiding to 3 to 4 ft after midnight. A chance of showers and tstms.

SUN
SW winds 10 to 15 kt. Seas 3 to 4 ft. Showers likely with a chance of tstms.

SUN NIGHT
SW winds 10 to 15 kt. Seas 2 to 3 ft. Showers likely with a chance of tstms.

MON
N winds 10 to 15 kt. Seas 2 to 3 ft. Showers likely with a chance of tstms.

MON NIGHT
NE winds 10 to 15 kt. Seas 2 to 3 ft. Showers likely with a chance of tstms.

Winds and seas higher in and near tstms.

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AMZ362-090800
Coastal waters from Edisto Beach SC to Savannah GA out 20 NM
239 PM EDT Wed Jul 8 2026

TONIGHT
SW winds 15 to 20 kt. Seas 3 to 4 ft. Wave Detail: S 3 ft at 4 seconds and SE 2 ft at 9 seconds.

THU
W winds 10 to 15 kt, becoming SW 15 to 20 kt in the afternoon. Seas 3 to 4 ft. Wave Detail: S 3 ft at 5 seconds and SE 2 ft at 9 seconds.

THU NIGHT
SW winds 15 to 20 kt with gusts to 25 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft at 5 seconds and SE 2 ft at 9 seconds.

FRI
W winds 10 to 15 kt, becoming SW 15 to 20 kt in the afternoon. Seas 3 to 4 ft. Wave Detail: S 3 ft at 6 seconds and SE 2 ft at 9 seconds.

FRI NIGHT
SW winds 15 to 20 kt with gusts to 25 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft at 5 seconds and SE 2 ft at 8 seconds.

SAT
W winds 10 to 15 kt, becoming SW 15 to 20 kt in the afternoon. Seas 3 to 4 ft. Wave Detail: S 3 ft at 7 seconds.

SAT NIGHT
SW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Seas 3 to 4 ft. A chance of showers and tstms.

SUN
SW winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers and tstms.

SUN NIGHT
SW winds 10 to 15 kt. Seas 2 to 3 ft. Showers likely with a chance of tstms.

MON
W winds 10 kt. Seas 2 to 3 ft. Showers likely with a chance of tstms.

MON NIGHT
E winds 10 kt. Seas 2 to 3 ft. Showers likely with a chance of tstms.

Winds and seas higher in and near tstms.

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AMZ364-090800
Coastal waters from Savannah GA to Altamaha Sound GA out 20 nm, including Grays Reef National Marine Sanctuary
239 PM EDT Wed Jul 8 2026

TONIGHT
SW winds 10 to 15 kt with gusts to 20 kt, becoming SW 10 to 15 kt late. Seas 3 ft. Wave Detail: S 3 ft at 4 seconds and SE 2 ft at 9 seconds.

THU
W winds 10 to 15 kt, becoming S with gusts to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 5 seconds and SE 3 ft at 9 seconds.

THU NIGHT
SW winds 10 to 15 kt with gusts to 20 kt. Seas 3 to 4 ft. Wave Detail: S 3 ft at 5 seconds and SE 2 ft at 9 seconds.

FRI
W winds 10 to 15 kt, becoming S 15 to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 6 seconds and SE 2 ft at 9 seconds.

FRI NIGHT
SW winds 15 to 20 kt with gusts to 25 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft at 5 seconds and SE 1 foot at 8 seconds.

SAT
W winds 10 kt, becoming S with gusts to 20 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 5 seconds and SE 3 ft at 8 seconds.

SAT NIGHT
S winds 15 to 20 kt, becoming SW 10 to 15 kt after midnight. Seas 3 to 4 ft, subsiding to 2 to 3 ft after midnight. A slight chance of showers and tstms.

SUN
SW winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers and tstms.

SUN NIGHT
SW winds 10 kt. Seas 2 ft. Showers likely with a chance of tstms.

MON
W winds 5 to 10 kt. Seas 2 ft. Showers and tstms likely.

MON NIGHT
W winds 5 to 10 kt. Seas 2 ft. Showers likely with a chance of tstms.

Winds and seas higher in and near tstms.

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AMZ380-090800
Waters from South Santee River SC to Edisto Beach SC extending from 20 to 60 NM
239 PM EDT Wed Jul 8 2026

TONIGHT
SW winds 15 to 20 kt with gusts to 25 kt. Seas 4 to 5 ft. Wave Detail: SW 4 ft at 5 seconds and SE 2 ft at 9 seconds.

THU
SW winds 15 to 20 kt with gusts to 25 kt. Seas 4 to 5 ft. Wave Detail: SW 4 ft at 6 seconds and SE 2 ft at 9 seconds.

THU NIGHT
SW winds 15 to 20 kt with gusts to 25 kt. Seas 4 to 5 ft, building to 5 to 6 ft after midnight. Wave Detail: SW 4 ft at 5 seconds and SE 2 ft at 9 seconds, becoming SW 5 ft at 6 seconds and SE 2 ft at 9 seconds.

FRI
SW winds 15 to 20 kt with gusts to 25 kt. Seas 4 to 5 ft. Wave Detail: SW 5 ft at 6 seconds and SE 3 ft at 8 seconds.

FRI NIGHT
SW winds 20 kt with gusts to 25 kt. Seas 5 to 6 ft. Wave Detail: SW 5 ft at 5 seconds and SE 2 ft at 8 seconds.

SAT
SW winds 15 to 20 kt with gusts to 25 kt. Seas 4 to 6 ft, subsiding to 4 to 5 ft in the afternoon. Wave Detail: S 5 ft at 7 seconds, becoming S 4 ft at 7 seconds.

SAT NIGHT
SW winds 15 to 20 kt with gusts to 25 kt. Seas 4 to 5 ft. A chance of showers and tstms.

SUN
W winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers and tstms.

SUN NIGHT
W winds 10 to 15 kt. Seas 3 ft. Showers with a chance of tstms.

MON
NW winds 10 to 15 kt. Seas 3 ft. Showers likely with a chance of tstms.

MON NIGHT
NE winds 10 to 15 kt. Seas 3 ft. Showers likely with a chance of tstms.

Winds and seas higher in and near tstms.

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AMZ382-090800
Waters from Edisto Beach SC to Savannah GA extending from 20 to 60 NM
239 PM EDT Wed Jul 8 2026

TONIGHT
SW winds 15 to 20 kt with gusts to 25 kt. Seas 3 to 4 ft. Wave Detail: SW 4 ft at 5 seconds and SE 2 ft at 9 seconds.

THU
W winds 10 to 15 kt, becoming SW 15 to 20 kt in the afternoon. Seas 3 to 4 ft. Wave Detail: SW 3 ft at 5 seconds and SE 2 ft at 9 seconds.

THU NIGHT
SW winds 15 to 20 kt with gusts to 30 kt. Seas 4 to 5 ft. Wave Detail: SW 5 ft at 6 seconds and SE 2 ft at 9 seconds.

FRI
SW winds 15 to 20 kt with gusts to 25 kt. Seas 4 to 5 ft, subsiding to 3 to 4 ft in the afternoon. Wave Detail: S 4 ft at 7 seconds, becoming SW 3 ft at 5 seconds and SE 2 ft at 8 seconds.

FRI NIGHT
SW winds 15 to 20 kt with gusts to 25 kt. Seas 4 to 5 ft. Wave Detail: SW 5 ft at 5 seconds and SE 3 ft at 9 seconds.

SAT
SW winds 15 to 20 kt with gusts to 25 kt. Seas 4 to 5 ft, subsiding to 3 to 4 ft in the afternoon. Wave Detail: S 4 ft at 7 seconds, becoming SW 3 ft at 5 seconds and SE 2 ft at 8 seconds.

SAT NIGHT
SW winds 15 to 20 kt with gusts to 25 kt. Seas 3 to 4 ft. A chance of showers and tstms.

SUN
W winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers and tstms.

SUN NIGHT
SW winds 10 to 15 kt. Seas 3 ft. Showers likely with a chance of tstms.

MON
W winds 10 to 15 kt. Seas 2 to 3 ft. Showers likely with a chance of tstms.

MON NIGHT
SW winds 10 to 15 kt. Seas 2 to 3 ft. Showers likely with a chance of tstms.

Winds and seas higher in and near tstms.

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AMZ384-090800
Waters from Savannah GA to Altamaha Sound GA extending from 20 to 60 NM
239 PM EDT Wed Jul 8 2026

TONIGHT
SW winds 15 kt. Gusts to 25 kt. Seas 3 to 4 ft. Wave Detail: SW 3 ft at 4 seconds and SE 2 ft at 9 seconds.

THU
SW winds 10 to 15 kt with gusts to 20 kt. Seas 3 to 4 ft. Wave Detail: SW 3 ft at 5 seconds and SE 3 ft at 9 seconds.

THU NIGHT
SW winds 15 to 20 kt with gusts to 25 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft at 5 seconds and SE 3 ft at 9 seconds.

FRI
SW winds 10 to 15 kt with gusts to 20 kt. Seas 3 to 4 ft. Wave Detail: S 3 ft at 7 seconds.

FRI NIGHT
SW winds 15 to 20 kt with gusts to 25 kt. Seas 3 to 4 ft. Wave Detail: S 4 ft at 5 seconds and SE 2 ft at 8 seconds.

SAT
SW winds 10 to 15 kt with gusts to 20 kt. Seas 3 to 4 ft. Wave Detail: S 3 ft at 5 seconds and SE 3 ft at 8 seconds.

SAT NIGHT
SW winds 15 to 20 kt. Seas 3 to 4 ft. A slight chance of showers and tstms.

SUN
SW winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers and tstms.

SUN NIGHT
SW winds 10 to 15 kt. Seas 2 to 3 ft. Showers likely with a chance of tstms.

MON
W winds 10 kt. Seas 2 to 3 ft. Showers likely with a chance of tstms.

MON NIGHT
SW winds 5 to 10 kt. Seas 2 to 3 ft. Showers likely with a chance of tstms.

Winds and seas higher in and near tstms.