181
FZUS52 KCHS 300939
CWFCHS
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE CHARLESTON SC
539 AM EDT TUE JUN 30 2026
SOUTH SANTEE RIVER SC TO ALTAMAHA SOUND GA OUT 60 NM, INCLUDING
CHARLESTON HARBOR AND GRAYS REEF NATIONAL MARINE SANCTUARY
AMZ300-302300-
539 AM EDT TUE JUN 30 2026
.SYNOPSIS FOR THE COASTAL WATERS OF SOUTH COASTAL SOUTH CAROLINA
AND NORTH COASTAL GEORGIA...
HIGH PRESSURE CENTERED OVER THE ATLANTIC WILL REMAIN THE PRIMARY
FEATURE ACROSS THE REGION THROUGH MUCH OF THE WEEK.
AMZ340-302300-
CHARLESTON HARBOR-
539 AM EDT TUE JUN 30 2026
TODAY
NE WINDS 5 KT, INCREASING TO 10 TO 15 KT WITH GUSTS TO
20 KT LATE THIS MORNING. A SLIGHT CHANCE OF SHOWERS LATE THIS
MORNING.
TONIGHT
E WINDS 10 TO 15 KT WITH GUSTS TO 20 KT, DIMINISHING
TO 5 TO 10 KT AFTER MIDNIGHT.
WED
NE WINDS 5 TO 10 KT, BECOMING E 10 TO 15 KT WITH GUSTS TO
20 KT IN THE AFTERNOON.
WED NIGHT
E WINDS 5 TO 10 KT.
THU
E WINDS 5 TO 10 KT.
THU NIGHT
E WINDS 5 TO 10 KT, DIMINISHING TO 5 KT AFTER
MIDNIGHT.
FRI
SE WINDS 5 TO 10 KT. A SLIGHT CHANCE OF SHOWERS.
FRI NIGHT
S WINDS 5 TO 10 KT.
SAT
S WINDS 5 TO 10 KT. A SLIGHT CHANCE OF SHOWERS AND TSTMS.
SAT NIGHT
S 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 86 DEGREES.
AMZ360-302300-
COASTAL WATERS FROM SOUTH SANTEE RIVER TO EDISTO BEACH SC OUT
20 NM-
539 AM EDT TUE JUN 30 2026
TODAY
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT, BECOMING E
15 TO 20 KT LATE. SEAS 2 TO 3 FT, BUILDING TO 3 TO 4 FT THIS
AFTERNOON. WAVE DETAIL: NE 2 FT AT 3 SECONDS AND SE 2 FT AT
10 SECONDS, BECOMING E 4 FT AT 5 SECONDS AND SE 2 FT AT
10 SECONDS.
TONIGHT
E WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT AFTER
MIDNIGHT. SEAS 3 TO 4 FT. WAVE DETAIL: E 4 FT AT 6 SECONDS AND E
4 FT AT 10 SECONDS.
WED
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. SEAS 3 TO 4 FT.
WAVE DETAIL: E 4 FT AT 8 SECONDS.
WED NIGHT
E WINDS 10 TO 15 KT WITH GUSTS TO 20 KT, DIMINISHING
TO 5 TO 10 KT AFTER MIDNIGHT. SEAS 3 TO 4 FT. WAVE DETAIL: E 4 FT
AT 8 SECONDS.
THU
NE WINDS 5 TO 10 KT, BECOMING E 10 TO 15 KT IN THE
AFTERNOON. SEAS 3 TO 4 FT. WAVE DETAIL: E 4 FT AT 8 SECONDS.
THU NIGHT
E WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL: E
4 FT AT 8 SECONDS. A SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT.
FRI
SE WINDS 5 TO 10 KT. SEAS 2 TO 3 FT.
FRI NIGHT
S WINDS 10 KT. SEAS 2 TO 3 FT.
SAT
S WINDS 10 TO 15 KT. SEAS 2 TO 3 FT.
SAT NIGHT
S WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. A SLIGHT CHANCE
OF SHOWERS AND TSTMS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
AMZ362-302300-
COASTAL WATERS FROM EDISTO BEACH SC TO SAVANNAH GA OUT 20 NM-
539 AM EDT TUE JUN 30 2026
TODAY
NE WINDS 10 TO 15 KT. SEAS 2 TO 3 FT, BUILDING TO 3 TO
4 FT THIS AFTERNOON. WAVE DETAIL: E 2 FT AT 3 SECONDS AND SE 2 FT
AT 10 SECONDS, BECOMING E 3 FT AT 5 SECONDS AND SE 2 FT AT
10 SECONDS.
TONIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: E
4 FT AT 6 SECONDS AND SE 2 FT AT 9 SECONDS.
WED
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. SEAS 3 TO 4 FT.
WAVE DETAIL: E 4 FT AT 8 SECONDS.
WED NIGHT
E WINDS 10 TO 15 KT WITH GUSTS TO 20 KT, DIMINISHING
TO 5 TO 10 KT AFTER MIDNIGHT. SEAS 3 TO 4 FT. WAVE DETAIL: E 4 FT
AT 8 SECONDS.
THU
NE WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL: E 4 FT
AT 8 SECONDS.
THU NIGHT
E WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL: E
4 FT AT 8 SECONDS. A SLIGHT CHANCE OF SHOWERS AND TSTMS AFTER
MIDNIGHT.
FRI
E WINDS 5 TO 10 KT. SEAS 2 TO 3 FT.
FRI NIGHT
S WINDS 10 KT. SEAS 2 TO 3 FT. A SLIGHT CHANCE OF
SHOWERS AND TSTMS.
SAT
S WINDS 10 TO 15 KT. SEAS 2 TO 3 FT.
SAT NIGHT
S WINDS 10 TO 15 KT. SEAS 3 FT. A SLIGHT CHANCE OF
SHOWERS AND TSTMS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
AMZ364-302300-
COASTAL WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA OUT 20 NM,
INCLUDING GRAYS REEF NATIONAL MARINE SANCTUARY-
539 AM EDT TUE JUN 30 2026
TODAY
E WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT THIS
AFTERNOON. SEAS 2 TO 3 FT. WAVE DETAIL: E 2 FT AT 4 SECONDS AND
SE 2 FT AT 10 SECONDS.
TONIGHT
E WINDS 10 TO 15 KT. SEAS 3 FT. WAVE DETAIL: E 3 FT AT
5 SECONDS AND SE 2 FT AT 9 SECONDS.
WED
NE WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: E 3 FT
AT 6 SECONDS AND SE 2 FT AT 9 SECONDS.
WED NIGHT
E WINDS 10 TO 15 KT, DIMINISHING TO 5 TO 10 KT AFTER
MIDNIGHT. SEAS 3 TO 4 FT. WAVE DETAIL: E 3 FT AT 8 SECONDS.
THU
NE WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL: E 4 FT
AT 8 SECONDS. A SLIGHT CHANCE OF SHOWERS.
THU NIGHT
SE WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL: E
3 FT AT 8 SECONDS. A SLIGHT CHANCE OF SHOWERS AND TSTMS AFTER
MIDNIGHT.
FRI
E WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. A SLIGHT CHANCE OF
SHOWERS AND TSTMS.
FRI NIGHT
S WINDS 10 KT. SEAS 2 TO 3 FT. A SLIGHT CHANCE OF
SHOWERS AND TSTMS.
SAT
S WINDS 10 TO 15 KT. SEAS 2 TO 3 FT.
SAT NIGHT
S WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. A SLIGHT CHANCE
OF SHOWERS AND TSTMS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
AMZ380-302300-
WATERS FROM SOUTH SANTEE RIVER SC TO EDISTO BEACH SC EXTENDING
FROM 20 TO 60 NM-
539 AM EDT TUE JUN 30 2026
TODAY
NE WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT LATE
THIS MORNING. SEAS 4 TO 5 FT. WAVE DETAIL: NE 5 FT AT 7 SECONDS
AND SE 2 FT AT 10 SECONDS.
TONIGHT
E WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT AFTER
MIDNIGHT. SEAS 4 TO 5 FT. WAVE DETAIL: NE 5 FT AT 7 SECONDS AND
SE 2 FT AT 10 SECONDS.
WED
NE WINDS 15 KT WITH GUSTS TO 20 KT. SEAS 4 TO 5 FT. WAVE
DETAIL: E 5 FT AT 8 SECONDS.
WED NIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 5 FT. WAVE DETAIL: E
5 FT AT 8 SECONDS. A SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT.
THU
NE WINDS 10 KT. SEAS 4 FT. WAVE DETAIL: E 4 FT AT
8 SECONDS. A SLIGHT CHANCE OF SHOWERS.
THU NIGHT
E WINDS 5 TO 10 KT, BECOMING SE AFTER MIDNIGHT. SEAS
3 TO 4 FT. WAVE DETAIL: E 4 FT AT 8 SECONDS. A SLIGHT CHANCE OF
SHOWERS. A SLIGHT CHANCE OF TSTMS AFTER MIDNIGHT.
FRI
SE WINDS 5 TO 10 KT. SEAS 2 TO 3 FT.
FRI NIGHT
S WINDS 5 TO 10 KT. SEAS 2 TO 3 FT.
SAT
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. A SLIGHT CHANCE OF
SHOWERS AND TSTMS.
SAT NIGHT
S WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. A SLIGHT CHANCE
OF SHOWERS AND TSTMS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
AMZ382-302300-
WATERS FROM EDISTO BEACH SC TO SAVANNAH GA EXTENDING FROM 20 TO
60 NM-
539 AM EDT TUE JUN 30 2026
TODAY
NE WINDS 10 TO 15 KT, INCREASING TO 15 TO 20 KT LATE.
SEAS 3 TO 4 FT, BUILDING TO 4 TO 5 FT THIS AFTERNOON. WAVE
DETAIL: NE 3 FT AT 4 SECONDS AND SE 3 FT AT 10 SECONDS, BECOMING
NE 4 FT AT 5 SECONDS AND SE 2 FT AT 10 SECONDS.
TONIGHT
E WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT AFTER
MIDNIGHT. SEAS 4 TO 5 FT. WAVE DETAIL: NE 4 FT AT 6 SECONDS AND
SE 2 FT AT 9 SECONDS.
WED
NE WINDS 15 KT WITH GUSTS TO 20 KT. SEAS 4 TO 5 FT. WAVE
DETAIL: E 5 FT AT 8 SECONDS.
WED NIGHT
E WINDS 10 TO 15 KT. SEAS 4 TO 5 FT. WAVE DETAIL: E
5 FT AT 8 SECONDS. A SLIGHT CHANCE OF SHOWERS AND TSTMS AFTER
MIDNIGHT.
THU
NE WINDS 10 TO 15 KT. SEAS 4 TO 5 FT. WAVE DETAIL: E 5 FT
AT 9 SECONDS. A SLIGHT CHANCE OF SHOWERS.
THU NIGHT
E WINDS 5 TO 10 KT. SEAS 3 TO 4 FT. WAVE DETAIL: E
4 FT AT 8 SECONDS. A SLIGHT CHANCE OF SHOWERS AND TSTMS.
FRI
SE WINDS 5 TO 10 KT. SEAS 3 FT.
FRI NIGHT
S WINDS 5 TO 10 KT. SEAS 3 FT.
SAT
S WINDS 10 TO 15 KT. SEAS 3 FT.
SAT NIGHT
S WINDS 15 KT. SEAS 3 TO 4 FT. A CHANCE OF SHOWERS
WITH A SLIGHT CHANCE OF TSTMS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
AMZ384-302300-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA EXTENDING FROM 20 TO
60 NM-
539 AM EDT TUE JUN 30 2026
TODAY
NE WINDS 5 TO 10 KT, INCREASING TO 10 TO 15 KT WITH
GUSTS TO 20 KT LATE THIS MORNING. SEAS 2 TO 3 FT, BUILDING TO
3 TO 4 FT THIS AFTERNOON. WAVE DETAIL: SE 3 FT AT 9 SECONDS,
BECOMING E 3 FT AT 5 SECONDS AND SE 2 FT AT 9 SECONDS.
TONIGHT
E WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: E
4 FT AT 6 SECONDS AND SE 2 FT AT 9 SECONDS.
WED
NE WINDS 10 TO 15 KT. SEAS 4 TO 5 FT. WAVE DETAIL: NE 4 FT
AT 7 SECONDS AND E 3 FT AT 9 SECONDS.
WED NIGHT
E WINDS 10 TO 15 KT, DIMINISHING TO 5 TO 10 KT AFTER
MIDNIGHT. SEAS 4 TO 5 FT. WAVE DETAIL: NE 4 FT AT 7 SECONDS AND E
4 FT AT 9 SECONDS.
THU
NE WINDS 5 TO 10 KT. SEAS 4 TO 5 FT. WAVE DETAIL: E 4 FT
AT 8 SECONDS. A CHANCE OF SHOWERS.
THU NIGHT
E WINDS 5 TO 10 KT, BECOMING SE AFTER MIDNIGHT. SEAS
3 TO 4 FT. WAVE DETAIL: E 4 FT AT 9 SECONDS. A SLIGHT CHANCE OF
SHOWERS AND TSTMS.
FRI
S WINDS 5 TO 10 KT. SEAS 3 FT. A SLIGHT CHANCE OF SHOWERS
AND TSTMS.
FRI NIGHT
S WINDS 5 TO 10 KT. SEAS 3 FT. A SLIGHT CHANCE OF
SHOWERS AND TSTMS.
SAT
S WINDS 5 TO 10 KT. SEAS 2 TO 3 FT.
SAT NIGHT
S WINDS 10 TO 15 KT. SEAS 3 FT. A CHANCE OF SHOWERS
WITH A SLIGHT CHANCE OF TSTMS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
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