National Weather Service Marine Forecast FZUS52 KCHS
FZUS52 KCHS 281815
CWFCHS
Coastal Waters Forecast
National Weather Service Charleston SC
214 PM EDT Thu May 28 2026
South Santee River SC to Altamaha Sound GA out 60 NM, including Charleston Harbor and Grays Reef National Marine Sanctuary
AMZ300-290800
214 PM EDT Thu May 28 2026
.Synopsis for the coastal waters of south coastal South Carolina and north coastal Georgia... A cold front will move into the area tonight, stalling in the vicinity through the weekend. High pressure is expected to return by the middle of next week.
AMZ340-290800
Charleston Harbor
214 PM EDT Thu May 28 2026
THIS AFTERNOON
SW winds 10 kt. A chance of tstms. A chance of
showers early, then showers likely late.
TONIGHT
SW winds 5 to 10 kt, becoming NW after midnight. A
chance of showers. A chance of tstms, mainly in the evening.
FRI
E winds 10 to 15 kt with gusts to 20 kt. A slight chance
of showers and tstms.
FRI NIGHT
SE winds 10 kt, becoming S after midnight. Showers
likely with a slight chance of tstms after midnight.
SAT
SW winds 5 to 10 kt. Showers with a chance of tstms.
SAT NIGHT
E winds 5 to 10 kt, increasing to 10 to 15 kt with
gusts to 20 kt after midnight. Showers with a chance of tstms in
the evening, then showers likely after midnight.
SUN
E winds 15 to 20 kt. Waves 1 to 2 ft. A chance of showers
with a slight chance of tstms.
SUN NIGHT
E winds 10 to 15 kt. A chance of showers and tstms.
MON
E winds 5 to 10 kt. A chance of showers and tstms.
MON NIGHT
S winds 5 to 10 kt. A chance of showers with a
slight chance of tstms.
Winds and waves higher in and near tstms.
AMZ360-290800
Coastal waters from South Santee River to Edisto Beach SC out
20 NM
214 PM EDT Thu May 28 2026
THIS AFTERNOON
SW winds 10 kt. Seas 3 to 4 ft. Wave Detail: SE
4 ft at 9 seconds. A chance of showers. A slight chance of tstms
early, then a chance of tstms late.
TONIGHT
SW winds 5 to 10 kt, becoming NW after midnight. Seas
3 to 4 ft. Wave Detail: SE 4 ft at 8 seconds. A chance of showers
and tstms.
FRI
E winds 15 to 20 kt with gusts to 25 kt. Seas 3 to 4 ft.
Wave Detail: E 4 ft at 5 seconds and SE 3 ft at 8 seconds. A
slight chance of showers and tstms.
FRI NIGHT
SE winds 10 to 15 kt with gusts to 20 kt, becoming S
5 to 10 kt after midnight. Seas 3 to 4 ft. Wave Detail: E 4 ft at
5 seconds and SE 4 ft at 8 seconds. Showers likely with a slight
chance of tstms after midnight.
SAT
SW winds 5 to 10 kt, becoming S in the afternoon. Seas
2 to 3 ft. Wave Detail: E 2 ft at 7 seconds. A chance of tstms.
Showers.
SAT NIGHT
E winds 10 kt, becoming NE 20 to 25 kt after
midnight. Seas 2 to 3 ft, building to 3 to 4 ft after midnight.
Wave Detail: E 2 ft at 7 seconds, becoming E 3 ft at 7 seconds.
Showers likely with a chance of tstms in the evening, then
showers likely after midnight.
SUN
E winds 20 to 25 kt. Seas 5 to 7 ft. A chance of showers.
SUN NIGHT
E winds 15 to 20 kt. Seas 5 to 7 ft. A chance of
showers with a slight chance of tstms.
MON
E winds 10 kt. Seas 3 to 4 ft. A chance of showers and
tstms.
MON NIGHT
S winds 5 to 10 kt. Seas 2 to 3 ft. A chance of
showers with a slight chance of tstms.
Winds and seas higher in and near tstms.
AMZ362-290800
Coastal waters from Edisto Beach SC to Savannah GA out 20 NM
214 PM EDT Thu May 28 2026
THIS AFTERNOON
SW winds 5 to 10 kt. Seas 3 ft. Wave Detail: SE
3 ft at 8 seconds. A slight chance of showers and tstms.
TONIGHT
SW winds 5 to 10 kt, becoming W after midnight. Seas
3 ft. Wave Detail: SE 3 ft at 8 seconds. A chance of showers and
tstms.
FRI
NE winds 10 to 15 kt, becoming E in the afternoon. Seas
2 to 3 ft, building to 3 to 4 ft in the afternoon. Wave Detail:
SE 3 ft at 8 seconds. A chance of showers. A slight chance of
tstms in the morning, then a chance of tstms in the afternoon.
FRI NIGHT
SE winds 10 to 15 kt with gusts to 20 kt, becoming S
5 to 10 kt after midnight. Seas 3 to 4 ft. Wave Detail: E 3 ft at
5 seconds and SE 3 ft at 8 seconds. A slight chance of showers
and tstms in the evening, then showers likely with a chance of
tstms after midnight.
SAT
SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft
at 7 seconds. A chance of tstms. Showers.
SAT NIGHT
SE winds 5 to 10 kt, becoming NE 15 to 20 kt with
gusts to 25 kt after midnight. Seas 2 to 3 ft. Wave Detail: E
3 ft at 7 seconds. Showers with a chance of tstms in the evening,
then showers likely after midnight.
SUN
E winds 20 to 25 kt. Seas 4 to 6 ft. Showers likely with a
slight chance of tstms.
SUN NIGHT
E winds 15 to 20 kt. Seas 5 to 7 ft. Showers likely
with a chance of tstms.
MON
E winds 5 to 10 kt. Seas 3 to 4 ft. Showers likely with a
chance of tstms.
MON NIGHT
S winds 5 to 10 kt. Seas 2 to 3 ft. A chance of
showers with a slight chance of tstms.
Winds and seas higher in and near tstms.
AMZ364-290800
Coastal waters from Savannah GA to Altamaha Sound GA out 20 nm,
including Grays Reef National Marine Sanctuary
214 PM EDT Thu May 28 2026
THIS AFTERNOON
SW winds 5 to 10 kt. Seas 3 ft. Wave Detail: SE
3 ft at 8 seconds and E 1 foot at 8 seconds. A chance of showers
and tstms.
TONIGHT
SW winds 5 to 10 kt, becoming W after midnight. Seas
2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and E 1 foot at
8 seconds. A chance of showers. A chance of tstms, mainly in the
evening. Patchy fog after midnight.
FRI
N winds 5 to 10 kt, becoming E in the afternoon. Seas 2 to
3 ft. Wave Detail: SE 3 ft at 8 seconds and E 1 foot at
8 seconds. A chance of tstms. A chance of showers in the morning,
then showers likely in the afternoon.
FRI NIGHT
SE winds 5 to 10 kt, becoming S after midnight. Seas
2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and E 2 ft at
5 seconds. A chance of tstms. A chance of showers in the evening,
then showers likely after midnight.
SAT
SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft
at 5 seconds and SE 2 ft at 8 seconds. Showers likely with a
slight chance of tstms in the morning, then showers with a chance
of tstms in the afternoon.
SAT NIGHT
W winds 5 to 10 kt, becoming NE 10 to 15 kt with
gusts to 20 kt after midnight. Seas 2 to 3 ft. Wave Detail: E
2 ft at 7 seconds and SW 1 foot at 3 seconds. Showers. A chance
of tstms, mainly in the evening.
SUN
E winds 20 to 25 kt. Seas 4 to 5 ft. Showers likely with a
chance of tstms.
SUN NIGHT
E winds 15 to 20 kt. Seas 4 to 6 ft. Showers likely
with a chance of tstms.
MON
NE winds 5 to 10 kt. Seas 3 to 4 ft. Showers likely with a
chance of tstms.
MON NIGHT
NE winds 5 to 10 kt. Seas 3 to 4 ft. A chance of
showers with a slight chance of tstms.
Winds and seas higher in and near tstms.
AMZ380-290800
Waters from South Santee River SC to Edisto Beach SC extending
from 20 to 60 NM
214 PM EDT Thu May 28 2026
THIS AFTERNOON
SW winds 10 to 15 kt. Seas 4 to 5 ft. Wave
Detail: SE 4 ft at 8 seconds. A slight chance of showers and
tstms.
TONIGHT
SW winds 10 kt, becoming NW after midnight. Seas 3 to
4 ft. Wave Detail: SE 4 ft at 8 seconds. A slight chance of
showers and tstms in the evening, then a chance of showers and
tstms after midnight.
FRI
E winds 15 to 20 kt. Seas 3 to 4 ft, building to 4 to 5 ft
in the afternoon. Wave Detail: E 3 ft at 4 seconds and SE 3 ft at
8 seconds, becoming E 4 ft at 5 seconds and SE 3 ft at 8 seconds.
A slight chance of tstms. A chance of showers, mainly in the
morning.
FRI NIGHT
SE winds 10 to 15 kt, becoming S 5 to 10 kt after
midnight. Seas 3 to 4 ft. Wave Detail: E 3 ft at 7 seconds.
Showers likely with a chance of tstms after midnight.
SAT
SW winds 5 to 10 kt, becoming SE in the afternoon. Seas
3 ft. Wave Detail: E 3 ft at 7 seconds. A chance of tstms.
Showers.
SAT NIGHT
SE winds 10 kt, becoming NE 20 to 25 kt after
midnight. Seas 3 ft, building to 4 to 5 ft after midnight. Wave
Detail: E 2 ft at 7 seconds, becoming E 4 ft at 7 seconds.
Showers likely with a chance of tstms in the evening, then
showers likely after midnight.
SUN
E winds 20 to 25 kt. Seas 5 to 7 ft. A chance of showers.
SUN NIGHT
E winds 15 to 20 kt. Seas 5 to 7 ft. A chance of
showers with a slight chance of tstms.
MON
E winds 10 to 15 kt. Seas 4 to 5 ft. A chance of showers
and tstms.
MON NIGHT
S winds 5 to 10 kt. Seas 3 to 4 ft. A chance of
showers and tstms.
Winds and seas higher in and near tstms.
AMZ382-290800
Waters from Edisto Beach SC to Savannah GA extending from 20 to
60 NM
214 PM EDT Thu May 28 2026
THIS AFTERNOON
SW winds 10 kt. Seas 4 ft. Wave Detail: SE 4 ft
at 8 seconds.
TONIGHT
W winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SE
4 ft at 8 seconds. A chance of showers and tstms.
FRI
NE winds 10 to 15 kt, becoming E 15 to 20 kt in the
afternoon. Seas 3 to 4 ft. Wave Detail: E 3 ft at 5 seconds and
SE 3 ft at 8 seconds. A chance of showers and tstms.
FRI NIGHT
SE winds 10 to 15 kt, becoming S 5 to 10 kt after
midnight. Seas 3 to 4 ft. Wave Detail: E 3 ft at 5 seconds and SE
3 ft at 8 seconds. A slight chance of showers and tstms in the
evening, then showers likely with a chance of tstms after
midnight.
SAT
SW winds 5 to 10 kt. Seas 3 ft. Wave Detail: E 2 ft at
7 seconds and W 1 foot at 3 seconds. Showers with a chance of
tstms.
SAT NIGHT
SE winds 10 kt, becoming NE 15 to 20 kt with gusts
to 25 kt after midnight. Seas 3 to 4 ft. Wave Detail: E 3 ft at
7 seconds and SW 1 foot at 4 seconds. Showers likely with a
chance of tstms in the evening, then showers with a slight chance
of tstms after midnight.
SUN
E winds 25 to 30 kt. Seas 5 to 7 ft. Showers likely with a
slight chance of tstms.
SUN NIGHT
E winds 15 to 20 kt. Seas 5 to 7 ft. Showers likely
with a chance of tstms.
MON
E winds 10 to 15 kt. Seas 4 to 5 ft. A chance of showers
and tstms.
MON NIGHT
NE winds 5 to 10 kt. Seas 3 to 4 ft. A chance of
showers with a slight chance of tstms.
Winds and seas higher in and near tstms.
AMZ384-290800
Waters from Savannah GA to Altamaha Sound GA extending from 20 to
60 NM
214 PM EDT Thu May 28 2026
THIS AFTERNOON
SW winds 5 to 10 kt. Seas 3 to 4 ft. Wave
Detail: SE 4 ft at 8 seconds and E 1 foot at 8 seconds. A slight
chance of showers and tstms late.
TONIGHT
SW winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: SE
3 ft at 8 seconds and E 1 foot at 8 seconds. A chance of showers
and tstms. Patchy fog after midnight.
FRI
N winds 5 to 10 kt, becoming E in the afternoon. Seas
3 ft. Wave Detail: SE 3 ft at 8 seconds and E 1 foot at
9 seconds. A chance of tstms. A chance of showers in the morning,
then showers likely in the afternoon.
FRI NIGHT
SE winds 5 to 10 kt, becoming S after midnight. Seas
2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds and NE 2 ft at
4 seconds. A chance of tstms. A chance of showers in the evening,
then showers likely after midnight.
SAT
W winds 5 to 10 kt. Seas 3 ft. Wave Detail: E 2 ft at
7 seconds and SW 1 foot at 3 seconds. Showers likely with a
chance of tstms in the morning, then showers with a slight chance
of tstms in the afternoon.
SAT NIGHT
SW winds 5 to 10 kt, becoming N 10 to 15 kt with
gusts to 20 kt after midnight. Seas 2 to 3 ft. Wave Detail: E
2 ft at 7 seconds and SW 1 foot at 3 seconds. Showers. A chance
of tstms, mainly in the evening.
SUN
E winds 20 to 25 kt. Seas 4 to 6 ft. Showers likely with a
chance of tstms.
SUN NIGHT
E winds 15 to 20 kt. Seas 5 to 6 ft. A chance of
showers and tstms.
MON
E winds 10 to 15 kt. Seas 4 to 5 ft. Showers likely with a
chance of tstms.
MON NIGHT
N winds 5 to 10 kt. Seas 3 to 4 ft. A chance of
showers and tstms.
Winds and seas higher in and near tstms.
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