850
FZUS52 KCHS 210939
CWFCHS
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE CHARLESTON SC
538 AM EDT SUN JUN 21 2026
SOUTH SANTEE RIVER SC TO ALTAMAHA SOUND GA OUT 60 NM, INCLUDING
CHARLESTON HARBOR AND GRAYS REEF NATIONAL MARINE SANCTUARY
AMZ300-212300-
538 AM EDT SUN JUN 21 2026
.SYNOPSIS FOR THE COASTAL WATERS OF SOUTH COASTAL SOUTH CAROLINA
AND NORTH COASTAL GEORGIA...
BROAD HIGH PRESSURE WILL RESIDE OVER THE AREA THROUGH MONDAY. A
COLD FRONT WILL APPROACH THE AREA MONDAY NIGHT INTO TUESDAY AND
STALL ACROSS SOUTHEAST SOUTH CAROLINA AND SOUTHEAST GEORGIA
THROUGH THE END OF THE WEEK.
AMZ340-212300-
CHARLESTON HARBOR-
538 AM EDT SUN JUN 21 2026
TODAY
NW WINDS 5 KT, BECOMING S THIS AFTERNOON. A SLIGHT
CHANCE OF SHOWERS AND TSTMS LATE.
TONIGHT
SW WINDS 5 TO 10 KT.
MON
W WINDS 5 TO 10 KT, BECOMING SW 10 TO 15 KT WITH GUSTS TO
20 KT IN THE AFTERNOON.
MON NIGHT
SW WINDS 10 TO 15 KT. A SLIGHT CHANCE OF SHOWERS AND
TSTMS IN THE EVENING.
TUE
W WINDS 10 KT, BECOMING SW WITH GUSTS TO 20 KT IN THE
AFTERNOON. A SLIGHT CHANCE OF SHOWERS. A SLIGHT CHANCE OF TSTMS
IN THE AFTERNOON.
TUE NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT, BECOMING W
5 KT AFTER MIDNIGHT. A SLIGHT CHANCE OF SHOWERS AND TSTMS.
WED
NE WINDS 5 TO 10 KT. A CHANCE OF SHOWERS AND TSTMS.
WED NIGHT
S WINDS 5 TO 10 KT. A CHANCE OF SHOWERS AND TSTMS.
THU
S WINDS 5 TO 10 KT. A CHANCE OF SHOWERS AND TSTMS.
THU NIGHT
SW WINDS 5 TO 10 KT. A CHANCE OF SHOWERS AND TSTMS.
WINDS AND WAVES HIGHER IN AND NEAR TSTMS.
UNLESS OTHERWISE NOTED, WAVES 1 FOOT OR LESS.
CHARLESTON HARBOR WATER TEMPERATURE 82 DEGREES.
AMZ360-212300-
COASTAL WATERS FROM SOUTH SANTEE RIVER TO EDISTO BEACH SC OUT
20 NM-
538 AM EDT SUN JUN 21 2026
TODAY
W WINDS 5 KT, BECOMING S THIS AFTERNOON. SEAS 2 FT. WAVE
DETAIL: SE 2 FT AT 7 SECONDS.
TONIGHT
SW WINDS 10 KT. SEAS 2 FT. WAVE DETAIL: S 2 FT AT
6 SECONDS.
MON
W WINDS 10 TO 15 KT, BECOMING SW 15 TO 20 KT WITH GUSTS TO
25 KT IN THE AFTERNOON. SEAS 2 FT, BUILDING TO 3 TO 4 FT IN THE
AFTERNOON. WAVE DETAIL: SW 2 FT AT 4 SECONDS AND SE 2 FT AT
7 SECONDS, BECOMING SW 3 FT AT 4 SECONDS AND SE 1 FOOT AT
7 SECONDS.
MON NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 3 TO
4 FT. WAVE DETAIL: S 4 FT AT 6 SECONDS. A SLIGHT CHANCE OF
SHOWERS AND TSTMS.
TUE
SW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 3 TO 4 FT.
WAVE DETAIL: S 4 FT AT 6 SECONDS. A SLIGHT CHANCE OF SHOWERS AND
TSTMS IN THE AFTERNOON.
TUE NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT, BECOMING W
10 TO 15 KT AFTER MIDNIGHT. SEAS 3 TO 4 FT, SUBSIDING TO 2 TO
3 FT AFTER MIDNIGHT. WAVE DETAIL: SW 4 FT AT 5 SECONDS AND SE
1 FOOT AT 8 SECONDS, BECOMING SW 3 FT AT 5 SECONDS AND SE 1 FOOT
AT 8 SECONDS. A SLIGHT CHANCE OF SHOWERS AND TSTMS.
WED
NE WINDS 5 TO 10 KT. SEAS 2 FT.
WED NIGHT
SE WINDS 5 TO 10 KT. SEAS 2 FT. A CHANCE OF SHOWERS
AND TSTMS.
THU
S WINDS 10 TO 15 KT. SEAS 2 FT. A SLIGHT CHANCE OF SHOWERS
AND TSTMS.
THU NIGHT
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. A CHANCE OF
SHOWERS AND TSTMS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
AMZ362-212300-
COASTAL WATERS FROM EDISTO BEACH SC TO SAVANNAH GA OUT 20 NM-
538 AM EDT SUN JUN 21 2026
TODAY
W WINDS 5 KT, BECOMING SW THIS AFTERNOON. SEAS 2 FT.
WAVE DETAIL: SE 2 FT AT 7 SECONDS AND SW 1 FOOT AT 3 SECONDS.
TONIGHT
SW WINDS 10 KT. SEAS 2 FT. WAVE DETAIL: SE 2 FT AT
7 SECONDS AND SW 1 FOOT AT 4 SECONDS. A SLIGHT CHANCE OF SHOWERS
AND TSTMS IN THE EVENING.
MON
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT
AT 3 SECONDS AND SE 1 FOOT AT 7 SECONDS.
MON NIGHT
SW WINDS 15 KT WITH GUSTS TO 20 KT. SEAS 2 TO 3 FT.
WAVE DETAIL: S 3 FT AT 4 SECONDS AND SE 1 FOOT AT 7 SECONDS.
TUE
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. SEAS 2 TO 3 FT.
WAVE DETAIL: SW 3 FT AT 4 SECONDS AND SE 1 FOOT AT 7 SECONDS. A
CHANCE OF SHOWERS AND TSTMS IN THE AFTERNOON.
TUE NIGHT
W WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW
3 FT AT 4 SECONDS AND SE 2 FT AT 7 SECONDS. A CHANCE OF SHOWERS
AND TSTMS, MAINLY IN THE EVENING.
WED
W WINDS 5 TO 10 KT. SEAS 2 FT.
WED NIGHT
S WINDS 5 TO 10 KT. SEAS 2 FT. A CHANCE OF SHOWERS
AND TSTMS.
THU
SW WINDS 5 TO 10 KT. SEAS 2 FT. A SLIGHT CHANCE OF SHOWERS
AND TSTMS.
THU NIGHT
SW WINDS 10 TO 15 KT. SEAS 2 FT. A CHANCE OF SHOWERS
AND TSTMS.
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-
538 AM EDT SUN JUN 21 2026
TODAY
W WINDS 5 TO 10 KT, BECOMING S LATE. SEAS 1 FOOT OR
LESS, THEN AROUND 2 FT THIS AFTERNOON. WAVE DETAIL: SW 1 FOOT AT
4 SECONDS AND SE 1 FOOT AT 7 SECONDS. A SLIGHT CHANCE OF SHOWERS
AND TSTMS LATE.
TONIGHT
SW WINDS 10 KT. SEAS 2 FT. WAVE DETAIL: S 1 FOOT AT
3 SECONDS AND SE 1 FOOT AT 7 SECONDS. A CHANCE OF SHOWERS WITH A
SLIGHT CHANCE OF TSTMS IN THE EVENING.
MON
SW WINDS 10 TO 15 KT. SEAS 2 FT. WAVE DETAIL: SW 2 FT AT
3 SECONDS AND SE 1 FOOT AT 7 SECONDS. A SLIGHT CHANCE OF SHOWERS
AND TSTMS IN THE AFTERNOON.
MON NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. SEAS 2 FT.
WAVE DETAIL: S 2 FT AT 4 SECONDS AND SE 1 FOOT AT 7 SECONDS. A
SLIGHT CHANCE OF SHOWERS AND TSTMS IN THE EVENING.
TUE
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT
AT 4 SECONDS AND SE 1 FOOT AT 7 SECONDS. A CHANCE OF SHOWERS AND
TSTMS IN THE AFTERNOON.
TUE NIGHT
W WINDS 10 TO 15 KT. SEAS 2 FT. WAVE DETAIL: SW 2 FT
AT 4 SECONDS AND SE 2 FT AT 7 SECONDS. A CHANCE OF SHOWERS AND
TSTMS, MAINLY IN THE EVENING.
WED
SW WINDS 5 TO 10 KT. SEAS 2 FT.
WED NIGHT
S WINDS 5 TO 10 KT. SEAS 2 FT. A CHANCE OF SHOWERS
AND TSTMS.
THU
SW WINDS 5 TO 10 KT. SEAS 2 FT. A CHANCE OF SHOWERS AND
TSTMS.
THU NIGHT
SW WINDS 10 KT. SEAS 2 FT. A CHANCE OF SHOWERS AND
TSTMS.
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-
538 AM EDT SUN JUN 21 2026
TODAY
NW WINDS 5 KT, BECOMING S THIS AFTERNOON. SEAS 2 FT.
WAVE DETAIL: SE 2 FT AT 7 SECONDS AND SW 1 FOOT AT 4 SECONDS.
TONIGHT
SW WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: S 2 FT AT
6 SECONDS.
MON
W WINDS 10 TO 15 KT, BECOMING SW 15 TO 20 KT IN THE
AFTERNOON. SEAS 2 TO 3 FT, BUILDING TO 3 TO 4 FT IN THE
AFTERNOON. WAVE DETAIL: SW 2 FT AT 4 SECONDS AND SE 2 FT AT
7 SECONDS, BECOMING SW 3 FT AT 4 SECONDS AND SE 2 FT AT
7 SECONDS. A SLIGHT CHANCE OF SHOWERS AND TSTMS IN THE MORNING.
MON NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 4 TO
5 FT. WAVE DETAIL: S 4 FT AT 6 SECONDS. A SLIGHT CHANCE OF
SHOWERS AND TSTMS.
TUE
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 8 SECONDS. A
SLIGHT CHANCE OF SHOWERS AND TSTMS.
TUE NIGHT
SW WINDS 15 TO 20 KT, BECOMING W 10 TO 15 KT AFTER
MIDNIGHT. SEAS 4 TO 5 FT, SUBSIDING TO 3 TO 4 FT AFTER MIDNIGHT.
WAVE DETAIL: SW 4 FT AT 5 SECONDS AND SE 1 FOOT AT 8 SECONDS,
BECOMING SW 3 FT AT 5 SECONDS AND SE 2 FT AT 8 SECONDS. A CHANCE
OF SHOWERS AND TSTMS.
WED
N WINDS 5 TO 10 KT. SEAS 2 TO 3 FT.
WED NIGHT
S WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. A CHANCE OF
SHOWERS AND TSTMS.
THU
S WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. A CHANCE OF SHOWERS
WITH A SLIGHT CHANCE OF TSTMS.
THU NIGHT
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. SHOWERS LIKELY
WITH A CHANCE OF TSTMS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
AMZ382-212300-
WATERS FROM EDISTO BEACH SC TO SAVANNAH GA EXTENDING FROM 20 TO
60 NM-
538 AM EDT SUN JUN 21 2026
TODAY
W WINDS 5 TO 10 KT, BECOMING SW LATE. SEAS 2 FT. WAVE
DETAIL: SE 2 FT AT 7 SECONDS AND W 1 FOOT AT 4 SECONDS.
TONIGHT
SW WINDS 10 KT. SEAS 2 FT. WAVE DETAIL: SW 2 FT AT
3 SECONDS AND SE 2 FT AT 7 SECONDS.
MON
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT
AT 4 SECONDS AND SE 1 FOOT AT 7 SECONDS. A SLIGHT CHANCE OF
SHOWERS AND TSTMS IN THE MORNING.
MON NIGHT
SW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 3 TO
4 FT. WAVE DETAIL: S 4 FT AT 6 SECONDS. A SLIGHT CHANCE OF
SHOWERS AND TSTMS.
TUE
SW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 3 TO 4 FT.
WAVE DETAIL: W 3 FT AT 5 SECONDS AND SE 1 FOOT AT 7 SECONDS. A
SLIGHT CHANCE OF TSTMS. A SLIGHT CHANCE OF SHOWERS IN THE
MORNING, THEN A CHANCE OF SHOWERS IN THE AFTERNOON.
TUE NIGHT
SW WINDS 15 TO 20 KT, BECOMING W 10 TO 15 KT AFTER
MIDNIGHT. SEAS 3 TO 4 FT, SUBSIDING TO 2 TO 3 FT AFTER MIDNIGHT.
WAVE DETAIL: SW 3 FT AT 4 SECONDS AND SE 1 FOOT AT 8 SECONDS,
BECOMING SW 3 FT AT 4 SECONDS AND SE 2 FT AT 8 SECONDS. A CHANCE
OF SHOWERS AND TSTMS.
WED
W WINDS 5 TO 10 KT. SEAS 2 TO 3 FT.
WED NIGHT
S WINDS 5 TO 10 KT. SEAS 2 FT. A CHANCE OF SHOWERS
AND TSTMS.
THU
SW WINDS 5 TO 10 KT. SEAS 2 FT. A SLIGHT CHANCE OF SHOWERS
AND TSTMS.
THU NIGHT
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. A CHANCE OF
SHOWERS AND TSTMS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
AMZ384-212300-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA EXTENDING FROM 20 TO
60 NM-
538 AM EDT SUN JUN 21 2026
TODAY
W WINDS 5 TO 10 KT, BECOMING SW LATE. SEAS 2 FT. WAVE
DETAIL: SE 2 FT AT 7 SECONDS AND W 1 FOOT AT 4 SECONDS.
TONIGHT
SW WINDS 5 TO 10 KT. SEAS 2 FT. WAVE DETAIL: SE 2 FT
AT 7 SECONDS AND SW 1 FOOT AT 3 SECONDS. A SLIGHT CHANCE OF
SHOWERS AND TSTMS IN THE EVENING.
MON
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 2 FT
AT 3 SECONDS AND SE 2 FT AT 7 SECONDS. A SLIGHT CHANCE OF SHOWERS
AND TSTMS IN THE MORNING.
MON NIGHT
SW WINDS 15 KT WITH GUSTS TO 20 KT. SEAS 2 TO 3 FT.
WAVE DETAIL: SW 3 FT AT 4 SECONDS AND SE 1 FOOT AT 7 SECONDS.
TUE
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL: SW 3 FT
AT 4 SECONDS AND SE 2 FT AT 7 SECONDS. A SLIGHT CHANCE OF SHOWERS
AND TSTMS IN THE AFTERNOON.
TUE NIGHT
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. WAVE DETAIL:
SW 2 FT AT 4 SECONDS AND SE 2 FT AT 7 SECONDS. A SLIGHT CHANCE OF
SHOWERS AND TSTMS.
WED
W WINDS 5 TO 10 KT. SEAS 2 FT.
WED NIGHT
S WINDS 5 TO 10 KT. SEAS 2 FT. A CHANCE OF SHOWERS
AND TSTMS.
THU
SW WINDS 5 TO 10 KT. SEAS 2 FT.
THU NIGHT
SW WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. A CHANCE OF
SHOWERS AND TSTMS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page