875
FZUS52 KCHS 210939
CWFCHS
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE CHARLESTON SC
539 AM EDT MON SEP 21 2026
SOUTH SANTEE RIVER SC TO ALTAMAHA SOUND GA OUT 60 NM, INCLUDING
CHARLESTON HARBOR AND GRAYS REEF NATIONAL MARINE SANCTUARY
AMZ300-212300-
539 AM EDT MON SEP 21 2026
.SYNOPSIS FOR THE COASTAL WATERS OF SOUTH COASTAL SOUTH CAROLINA
AND NORTH COASTAL GEORGIA...
A COLD FRONT WILL PUSH THROUGH THE AREA MID-WEEK. HIGH PRESSURE
WILL PREVAIL THEREAFTER.
AMZ340-212300-
CHARLESTON HARBOR-
539 AM EDT MON SEP 21 2026
TODAY
NE WINDS 5 KT, BECOMING E THIS AFTERNOON. A SLIGHT
CHANCE OF SHOWERS AND TSTMS EARLY THIS MORNING, THEN A SLIGHT
CHANCE OF SHOWERS LATE THIS MORNING.
TONIGHT
E WINDS 5 KT. A CHANCE OF SHOWERS AND TSTMS AFTER
MIDNIGHT.
TUE
NE WINDS 5 TO 10 KT. A CHANCE OF TSTMS. A CHANCE OF
SHOWERS IN THE MORNING, THEN SHOWERS LIKELY IN THE AFTERNOON.
TUE NIGHT
NE WINDS 5 TO 10 KT. SHOWERS LIKELY WITH A CHANCE OF
TSTMS.
WED
NE WINDS 10 TO 15 KT. SHOWERS LIKELY WITH A SLIGHT CHANCE
OF TSTMS IN THE MORNING, THEN SHOWERS LIKELY WITH A CHANCE OF
TSTMS IN THE AFTERNOON.
WED NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. A SLIGHT
CHANCE OF TSTMS. SHOWERS LIKELY, MAINLY IN THE EVENING.
THU
N WINDS 15 KT. A SLIGHT CHANCE OF SHOWERS AND TSTMS.
THU NIGHT
N WINDS 10 TO 15 KT.
FRI
N WINDS 10 TO 15 KT.
FRI NIGHT
N WINDS 5 TO 10 KT.
WINDS AND WAVES HIGHER IN AND NEAR TSTMS.
UNLESS OTHERWISE NOTED, WAVES 1 FOOT OR LESS.
CHARLESTON HARBOR WATER TEMPERATURE 84 DEGREES.
AMZ360-212300-
COASTAL WATERS FROM SOUTH SANTEE RIVER TO EDISTO BEACH SC OUT
20 NM-
539 AM EDT MON SEP 21 2026
TODAY
NE WINDS 5 KT, BECOMING E THIS AFTERNOON. SEAS 2 FT.
WAVE DETAIL: SE 2 FT AT 8 SECONDS. A SLIGHT CHANCE OF SHOWERS AND
TSTMS EARLY THIS MORNING, THEN A SLIGHT CHANCE OF SHOWERS LATE
THIS MORNING.
TONIGHT
E WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: E 2 FT AT
8 SECONDS. A CHANCE OF SHOWERS AND TSTMS AFTER MIDNIGHT.
TUE
NE WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: E 2 FT AT
8 SECONDS. A CHANCE OF SHOWERS AND TSTMS.
TUE NIGHT
NE WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: E 2 FT
AT 8 SECONDS. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
WED
NE WINDS 15 TO 20 KT. SEAS 2 TO 3 FT, BUILDING TO 3 TO
4 FT IN THE AFTERNOON. WAVE DETAIL: NE 3 FT AT 7 SECONDS,
BECOMING NE 4 FT AT 5 SECONDS. SHOWERS LIKELY WITH A SLIGHT
CHANCE OF TSTMS.
WED NIGHT
NE WINDS 20 TO 25 KT. SEAS 3 TO 4 FT, BUILDING TO
4 TO 5 FT AFTER MIDNIGHT. WAVE DETAIL: NE 4 FT AT 5 SECONDS,
BECOMING NE 5 FT AT 6 SECONDS. SHOWERS LIKELY WITH A CHANCE OF
TSTMS IN THE EVENING, THEN A CHANCE OF SHOWERS WITH A SLIGHT
CHANCE OF TSTMS AFTER MIDNIGHT.
THU
N WINDS 20 TO 25 KT. SEAS 4 TO 6 FT. A CHANCE OF SHOWERS
WITH A SLIGHT CHANCE OF TSTMS.
THU NIGHT
N WINDS 25 TO 30 KT. SEAS 5 TO 7 FT. A SLIGHT CHANCE
OF SHOWERS AND TSTMS.
FRI
N WINDS 20 TO 25 KT. SEAS 5 TO 7 FT.
FRI NIGHT
N WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
AMZ362-212300-
COASTAL WATERS FROM EDISTO BEACH SC TO SAVANNAH GA OUT 20 NM-
539 AM EDT MON SEP 21 2026
TODAY
NE WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: SE 2 FT AT
8 SECONDS. A SLIGHT CHANCE OF SHOWERS AND TSTMS EARLY THIS
MORNING.
TONIGHT
E WINDS 5 KT. SEAS 2 FT. WAVE DETAIL: E 2 FT AT
8 SECONDS. A CHANCE OF SHOWERS AND TSTMS AFTER MIDNIGHT.
TUE
NE WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: E 2 FT AT
8 SECONDS AND SE 1 FOOT AT 4 SECONDS. A CHANCE OF SHOWERS. A
SLIGHT CHANCE OF TSTMS IN THE MORNING, THEN A CHANCE OF TSTMS IN
THE AFTERNOON.
TUE NIGHT
E WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: E 2 FT
AT 8 SECONDS AND SE 1 FOOT AT 4 SECONDS. A CHANCE OF TSTMS. A
CHANCE OF SHOWERS IN THE EVENING, THEN SHOWERS LIKELY AFTER
MIDNIGHT.
WED
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. SEAS 2 TO 3 FT.
WAVE DETAIL: NE 3 FT AT 8 SECONDS. SHOWERS LIKELY. A SLIGHT
CHANCE OF TSTMS IN THE MORNING, THEN A CHANCE OF TSTMS IN THE
AFTERNOON.
WED NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 4 TO
5 FT. WAVE DETAIL: NE 5 FT AT 6 SECONDS. A CHANCE OF SHOWERS. A
CHANCE OF TSTMS, MAINLY IN THE EVENING.
THU
N WINDS 15 TO 20 KT. SEAS 4 TO 5 FT. A SLIGHT CHANCE OF
SHOWERS AND TSTMS.
THU NIGHT
N WINDS 20 TO 25 KT. SEAS 5 TO 7 FT.
FRI
N WINDS 20 TO 25 KT. SEAS 5 TO 7 FT.
FRI NIGHT
NE WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
AMZ364-212300-
COASTAL WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA OUT 20 NM,
INCLUDING GRAYS REEF NATIONAL MARINE SANCTUARY-
539 AM EDT MON SEP 21 2026
TODAY
NE WINDS 5 KT, BECOMING E LATE. SEAS 2 FT. WAVE DETAIL:
SE 2 FT AT 8 SECONDS. A SLIGHT CHANCE OF SHOWERS AND TSTMS THIS
MORNING.
TONIGHT
E WINDS 5 TO 10 KT, DIMINISHING TO 5 KT AFTER
MIDNIGHT. SEAS 2 FT. WAVE DETAIL: SE 2 FT AT 8 SECONDS. A SLIGHT
CHANCE OF SHOWERS AND TSTMS AFTER MIDNIGHT.
TUE
NE WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: E 2 FT AT
8 SECONDS. A CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF TSTMS.
TUE NIGHT
E WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: E 2 FT
AT 8 SECONDS. A SLIGHT CHANCE OF TSTMS. A SLIGHT CHANCE OF
SHOWERS IN THE EVENING, THEN SHOWERS LIKELY AFTER MIDNIGHT.
WED
NE WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: NE 3 FT
AT 5 SECONDS. SHOWERS LIKELY WITH A SLIGHT CHANCE OF TSTMS.
WED NIGHT
NE WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT
AFTER MIDNIGHT. SEAS 3 TO 4 FT, BUILDING TO 4 TO 5 FT AFTER
MIDNIGHT. WAVE DETAIL: NE 4 FT AT 5 SECONDS, BECOMING NE 5 FT AT
5 SECONDS. SHOWERS LIKELY WITH A CHANCE OF TSTMS IN THE EVENING,
THEN A CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF TSTMS AFTER
MIDNIGHT.
THU
NE WINDS 20 TO 25 KT. SEAS 4 TO 6 FT. A CHANCE OF SHOWERS
WITH A SLIGHT CHANCE OF TSTMS.
THU NIGHT
N WINDS 25 TO 30 KT. SEAS 5 TO 7 FT. A SLIGHT CHANCE
OF SHOWERS.
FRI
NE WINDS 20 TO 25 KT. SEAS 5 TO 7 FT.
FRI NIGHT
NE WINDS 10 TO 15 KT. SEAS 4 TO 5 FT.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
AMZ380-212300-
WATERS FROM SOUTH SANTEE RIVER SC TO EDISTO BEACH SC EXTENDING
FROM 20 TO 60 NM-
539 AM EDT MON SEP 21 2026
TODAY
NE WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E 3 FT
AT 8 SECONDS. A SLIGHT CHANCE OF SHOWERS AND TSTMS.
TONIGHT
E WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E
3 FT AT 8 SECONDS. A CHANCE OF SHOWERS AND TSTMS IN THE EVENING,
THEN SHOWERS LIKELY WITH A CHANCE OF TSTMS AFTER MIDNIGHT.
TUE
NE WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E 3 FT
AT 8 SECONDS. A CHANCE OF SHOWERS AND TSTMS.
TUE NIGHT
NE WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E
3 FT AT 8 SECONDS. A CHANCE OF TSTMS. SHOWERS.
WED
NE WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT IN THE
AFTERNOON. SEAS 2 TO 3 FT, BUILDING TO 3 TO 4 FT IN THE
AFTERNOON. WAVE DETAIL: NE 3 FT AT 7 SECONDS, BECOMING NE 4 FT AT
5 SECONDS. SHOWERS. A CHANCE OF TSTMS, MAINLY IN THE MORNING.
WED NIGHT
NE WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. SEAS 4 TO
5 FT, BUILDING TO 5 TO 6 FT AFTER MIDNIGHT. WAVE DETAIL: NE 5 FT
AT 5 SECONDS, BECOMING NE 6 FT AT 6 SECONDS. SHOWERS WITH A
CHANCE OF TSTMS.
THU
N WINDS 25 TO 30 KT. SEAS 7 TO 9 FT. SHOWERS LIKELY WITH A
CHANCE OF TSTMS.
THU NIGHT
N WINDS 25 TO 30 KT. SEAS 8 TO 10 FT. A CHANCE OF
SHOWERS AND TSTMS.
FRI
N WINDS 20 TO 25 KT. SEAS 7 TO 9 FT.
FRI NIGHT
N WINDS 10 TO 15 KT. SEAS 6 TO 8 FT.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
AMZ382-212300-
WATERS FROM EDISTO BEACH SC TO SAVANNAH GA EXTENDING FROM 20 TO
60 NM-
539 AM EDT MON SEP 21 2026
TODAY
NE WINDS 5 KT, BECOMING E THIS AFTERNOON. SEAS 2 TO
3 FT. WAVE DETAIL: E 3 FT AT 8 SECONDS. A SLIGHT CHANCE OF
SHOWERS AND TSTMS THIS MORNING, THEN A SLIGHT CHANCE OF SHOWERS
EARLY THIS AFTERNOON.
TONIGHT
E WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E
3 FT AT 8 SECONDS. A SLIGHT CHANCE OF SHOWERS AND TSTMS IN THE
EVENING, THEN A CHANCE OF SHOWERS AND TSTMS AFTER MIDNIGHT.
TUE
NE WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: E 2 FT AT
8 SECONDS AND SE 1 FOOT AT 3 SECONDS. A CHANCE OF SHOWERS. A
CHANCE OF TSTMS, MAINLY IN THE MORNING.
TUE NIGHT
NE WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: E 2 FT
AT 8 SECONDS AND SE 1 FOOT AT 3 SECONDS. A CHANCE OF SHOWERS WITH
A SLIGHT CHANCE OF TSTMS IN THE EVENING, THEN SHOWERS LIKELY WITH
A CHANCE OF TSTMS AFTER MIDNIGHT.
WED
NE WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT IN THE
AFTERNOON. SEAS 2 TO 3 FT, BUILDING TO 3 TO 4 FT IN THE
AFTERNOON. WAVE DETAIL: NE 3 FT AT 8 SECONDS, BECOMING NE 4 FT AT
5 SECONDS. A CHANCE OF TSTMS. SHOWERS LIKELY.
WED NIGHT
NE WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT
AFTER MIDNIGHT. SEAS 4 TO 5 FT, BUILDING TO 5 TO 6 FT AFTER
MIDNIGHT. WAVE DETAIL: NE 5 FT AT 5 SECONDS, BECOMING NE 6 FT AT
6 SECONDS. A CHANCE OF TSTMS. SHOWERS LIKELY.
THU
N WINDS 25 TO 30 KT. SEAS 6 TO 8 FT. A CHANCE OF SHOWERS
AND TSTMS.
THU NIGHT
N WINDS 25 TO 30 KT. SEAS 8 TO 10 FT. A SLIGHT
CHANCE OF SHOWERS AND TSTMS.
FRI
N WINDS 20 TO 25 KT. SEAS 7 TO 9 FT.
FRI NIGHT
N WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
AMZ384-212300-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA EXTENDING FROM 20 TO
60 NM-
539 AM EDT MON SEP 21 2026
TODAY
NE 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, THEN A SLIGHT CHANCE OF SHOWERS EARLY THIS AFTERNOON.
TONIGHT
E WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. WAVE DETAIL: E
3 FT AT 8 SECONDS. A CHANCE OF SHOWERS AND TSTMS AFTER MIDNIGHT.
TUE
NE WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: E 2 FT AT
8 SECONDS. A CHANCE OF SHOWERS. A CHANCE OF TSTMS, MAINLY IN THE
MORNING.
TUE NIGHT
E WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: E 2 FT
AT 8 SECONDS. A SLIGHT CHANCE OF SHOWERS AND TSTMS IN THE
EVENING, THEN A CHANCE OF SHOWERS AND TSTMS AFTER MIDNIGHT.
WED
NE WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT IN THE
AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: NE 3 FT AT 8 SECONDS.
SHOWERS LIKELY. A CHANCE OF TSTMS, MAINLY IN THE MORNING.
WED NIGHT
NE WINDS 15 TO 20 KT, INCREASING TO 20 TO 25 KT
AFTER MIDNIGHT. SEAS 4 TO 5 FT. WAVE DETAIL: NE 5 FT AT
5 SECONDS. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
THU
N WINDS 25 TO 30 KT. SEAS 6 TO 8 FT. A CHANCE OF SHOWERS
WITH A SLIGHT CHANCE OF TSTMS.
THU NIGHT
N WINDS 25 TO 30 KT. SEAS 7 TO 9 FT. A SLIGHT CHANCE
OF SHOWERS AND TSTMS.
FRI
N WINDS 20 TO 25 KT. SEAS 7 TO 9 FT.
FRI NIGHT
NE WINDS 10 TO 15 KT. SEAS 5 TO 7 FT.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
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