Sea weather in Charleston in the United States (USA) All the beach weather in Charleston

All the essential weather information for enjoying the beach in Charleston in the United States (USA), for swimming, tanning or water sports! Our sea weather data is reliable, easy to read and updated every day.

Weather: When should you go to the beach in Charleston over the next 7 days?

Discover the best moment to go to the beach in Charleston in the United States (USA) this week to enjoy the best weather and calmest sea possible. Our opinion is based on reliable sea weather forecasts in Charleston. You can see full forecasts by clicking on the day you want to see in the table below.

Date Outside temp. Our opinion
Saturday 13 December 202550°F to 59°Frecommended
Sunday 14 December 202532°F to 63°Fdiscouraged
Monday 15 December 202529°F to 40°Fnot recommended
Tuesday 16 December 202540°F to 50°Frecommended
Wednesday 17 December 202549°F to 61°Frecommended
Thursday 18 December 202556°F to 65°Frecommended
Friday 19 December 202554°F to 67°Frecommended

Sea Weather: Your daily and hourly sea weather in Charleston

Sea weather on Saturday 13 December 2025

On Saturday 13 December 2025, the sun will rise at 07:14 and will set at 17:15 on the beach(es) of Charleston. The outside temperature will be a high of 59°F t and a low of 50°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 11.2mph km/h (with gusts up to 21.1mph). Wave height will be up to 1.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature12°C (54°F)11°C (53°F)11°C (51°F)12°C (54°F)14°C (57°F)15°C (58°F)11°C (51°F)15°C (58°F)
Perceived temperature11°C (51°F)10°C (50°F)9°C (48°F)11°C (51°F)13°C (55°F)13°C (56°F)9°C (48°F)13°C (56°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity73%68%70%71%65%70%82%77%
Barometric pressure1020 hPa1021 hPa1021 hPa1022 hPa1022 hPa1019 hPa1019 hPa1019 hPa
Cloud cover2%2%2%2%1%3%0%0%
Heat index12°C (54°F)11°C (53°F)11°C (51°F)12°C (54°F)14°C (57°F)15°C (58°F)11°C (51°F)15°C (58°F)
Dew point8°C (46°F)6°C (42°F)6°C (42°F)7°C (45°F)7°C (45°F)9°C (49°F)8°C (46°F)10°C (51°F)
Wind
Speed14km/h (9mph)14km/h (9mph)13km/h (8mph)13km/h (8mph)10km/h (6mph)16km/h (10mph)16km/h (10mph)18km/h (11mph)
Gusts27km/h (17mph)27km/h (17mph)25km/h (15mph)21km/h (13mph)21km/h (13mph)34km/h (21mph)33km/h (21mph)22km/h (14mph)
Direction 229°
SW
243°
WSW
257°
WSW
255°
WSW
219°
SW
207°
SSW
202°
SSW
212°
SSW
Wind chill11°C (51°F)10°C (50°F)9°C (48°F)11°C (51°F)13°C (55°F)13°C (56°F)9°C (48°F)13°C (56°F)
Waves
Height0.3m (0.9ft)0.3m (0.9ft)0.3m (0.9ft)0.3m (1.0ft)0.3m (0.9ft)0.3m (1.1ft)0.4m (1.3ft)0.5m (1.5ft)
Direction 125°
SE
125°
SE
125°
SE
125°
SE
129°
SE
128°
SE
149°
SSE
149°
SSE
Period7.9 sec.7.8 sec.4.5 sec.6.4 sec.8.3 sec.8.2 sec.8.0 sec.7.9 sec.
Significant height0.3m (1ft)0.3m (1ft)0.4m (1.3ft)0.4m (1.3ft)0.3m (1ft)0.5m (1.6ft)0.6m (2ft)0.7m (2.3ft)
Sea water temperature
Water temperature12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)

Sea weather on Sunday 14 December 2025

On Sunday 14 December 2025, the sun will rise at 07:15 and will set at 17:15 on the beach(es) of Charleston. The outside temperature will be a high of 63°F t and a low of 32°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 22.4mph km/h (with gusts up to 29.8mph). Wave height will be up to 4.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature14°C (58°F)14°C (57°F)14°C (57°F)14°C (58°F)16°C (60°F)10°C (49°F)4°C (39°F)3°C (37°F)
Perceived temperature13°C (56°F)13°C (55°F)13°C (55°F)13°C (55°F)16°C (60°F)6°C (42°F)-1°C (29°F)-3°C (27°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity79%77%74%77%75%57%47%42%
Barometric pressure1018 hPa1018 hPa1017 hPa1017 hPa1017 hPa1020 hPa1024 hPa1029 hPa
Cloud cover13%17%36%85%11%27%0%0%
Heat index14°C (58°F)14°C (57°F)14°C (57°F)14°C (58°F)16°C (60°F)10°C (49°F)4°C (39°F)3°C (37°F)
Dew point11°C (51°F)10°C (50°F)9°C (49°F)10°C (51°F)11°C (52°F)2°C (35°F)-6°C (21°F)-9°C (17°F)
Wind
Speed15km/h (9mph)16km/h (10mph)18km/h (11mph)20km/h (13mph)24km/h (15mph)36km/h (22mph)32km/h (20mph)36km/h (22mph)
Gusts32km/h (20mph)34km/h (21mph)36km/h (22mph)33km/h (20mph)40km/h (25mph)48km/h (30mph)36km/h (22mph)44km/h (27mph)
Direction 232°
SW
238°
WSW
240°
WSW
245°
WSW
298°
WNW
360°
N
15°
NNE
15°
NNE
Wind chill13°C (56°F)13°C (55°F)13°C (55°F)13°C (55°F)16°C (60°F)6°C (42°F)-1°C (29°F)-3°C (27°F)
Waves
Height0.5m (1.7ft)0.5m (1.8ft)0.6m (2.0ft)0.7m (2.2ft)0.6m (2.1ft)0.8m (2.5ft)1.1m (3.6ft)1.3m (4.4ft)
Direction 195°
SSW
194°
SSW
195°
SSW
198°
SSW
201°
SSW
347°
NNW
31°
NNE
43°
NE
Period7.8 sec.7.8 sec.7.7 sec.7.8 sec.5.5 sec.4.4 sec.9.5 sec.9.5 sec.
Significant height0.7m (2.3ft)0.8m (2.6ft)0.7m (2.3ft)0.9m (3ft)0.8m (2.6ft)1.4m (4.6ft)1.5m (4.9ft)1.7m (5.6ft)
Sea water temperature
Water temperature14°C (56°F)14°C (56°F)14°C (56°F)14°C (56°F)14°C (56°F)14°C (56°F)14°C (56°F)14°C (56°F)

Sea weather on Monday 15 December 2025

On Monday 15 December 2025, the sun will rise at 07:15 and will set at 17:15 on the beach(es) of Charleston. The outside temperature will be a high of 40°F t and a low of 29°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 21.1mph km/h (with gusts up to 25.5mph). Wave height will be up to 4.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature-1°C (31°F)-1°C (29°F)-1°C (30°F)0°C (32°F)1°C (34°F)2°C (35°F)-0°C (31°F)4°C (39°F)
Perceived temperature-8°C (18°F)-8°C (17°F)-8°C (18°F)-5°C (23°F)-2°C (28°F)1°C (33°F)-1°C (29°F)3°C (37°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity46%49%47%45%40%43%56%58%
Barometric pressure1030 hPa1031 hPa1031 hPa1032 hPa1032 hPa1029 hPa1028 hPa1028 hPa
Cloud cover0%0%0%0%0%0%0%0%
Heat index-1°C (31°F)-1°C (29°F)-1°C (30°F)0°C (32°F)1°C (34°F)2°C (35°F)-0°C (31°F)4°C (39°F)
Dew point-11°C (13°F)-11°C (13°F)-11°C (12°F)-10°C (13°F)-11°C (13°F)-10°C (15°F)-8°C (18°F)-4°C (25°F)
Wind
Speed34km/h (21mph)32km/h (20mph)26km/h (16mph)20km/h (12mph)12km/h (7mph)4km/h (2mph)4km/h (2mph)4km/h (3mph)
Gusts41km/h (25mph)36km/h (23mph)30km/h (19mph)24km/h (15mph)20km/h (12mph)8km/h (5mph)8km/h (5mph)7km/h (4mph)
Direction 10°
N
15°
NNE
27°
NNE
34°
NE
43°
NE
112°
ESE
185°
S
248°
WSW
Wind chill-8°C (18°F)-8°C (17°F)-8°C (18°F)-5°C (23°F)-2°C (28°F)1°C (33°F)-1°C (29°F)3°C (37°F)
Waves
Height1.4m (4.7ft)1.3m (4.2ft)1.2m (4.0ft)1.1m (3.5ft)0.9m (3.0ft)0.8m (2.6ft)0.7m (2.3ft)0.7m (2.2ft)
Direction 37°
NE
83°
E
85°
E
90°
E
101°
ESE
108°
ESE
113°
ESE
114°
ESE
Period9.5 sec.9.6 sec.9.7 sec.8.2 sec.8.7 sec.9.2 sec.9.4 sec.9.4 sec.
Significant height1.8m (5.9ft)1.4m (4.6ft)1.2m (3.9ft)0.8m (2.6ft)0.5m (1.6ft)0.2m (0.7ft)0.1m (0.3ft)0.1m (0.3ft)
Sea water temperature
Water temperature14°C (56°F)14°C (56°F)14°C (56°F)14°C (56°F)14°C (56°F)14°C (56°F)14°C (56°F)14°C (56°F)

Sea weather on Tuesday 16 December 2025

On Tuesday 16 December 2025, the sun will rise at 07:16 and will set at 17:16 on the beach(es) of Charleston. The outside temperature will be a high of 50°F t and a low of 40°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 6.8mph km/h (with gusts up to 14.3mph). Wave height will be up to 2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature4°C (39°F)4°C (39°F)4°C (38°F)5°C (41°F)8°C (46°F)9°C (48°F)6°C (43°F)10°C (50°F)
Perceived temperature2°C (36°F)1°C (34°F)1°C (34°F)3°C (38°F)6°C (43°F)7°C (45°F)4°C (39°F)9°C (48°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity56%63%69%61%47%48%64%68%
Barometric pressure1027 hPa1026 hPa1026 hPa1027 hPa1026 hPa1024 hPa1024 hPa1025 hPa
Cloud cover0%4%0%4%0%0%0%0%
Heat index4°C (39°F)4°C (39°F)4°C (38°F)5°C (41°F)8°C (46°F)9°C (48°F)6°C (43°F)10°C (50°F)
Dew point-4°C (25°F)-3°C (27°F)-2°C (29°F)-2°C (29°F)-3°C (26°F)-2°C (29°F)-0°C (32°F)4°C (40°F)
Wind
Speed7km/h (4mph)9km/h (6mph)10km/h (6mph)8km/h (5mph)9km/h (5mph)10km/h (6mph)11km/h (7mph)10km/h (6mph)
Gusts12km/h (7mph)16km/h (10mph)17km/h (11mph)11km/h (7mph)16km/h (10mph)21km/h (13mph)23km/h (15mph)19km/h (12mph)
Direction 255°
WSW
269°
W
284°
WNW
289°
WNW
242°
WSW
205°
SSW
206°
SSW
231°
SW
Wind chill2°C (36°F)1°C (34°F)1°C (34°F)3°C (38°F)6°C (43°F)7°C (45°F)4°C (39°F)9°C (48°F)
Waves
Height0.6m (2.0ft)0.6m (1.9ft)0.5m (1.8ft)0.5m (1.7ft)0.5m (1.6ft)0.5m (1.6ft)0.5m (1.6ft)0.5m (1.5ft)
Direction 116°
ESE
117°
ESE
119°
ESE
120°
ESE
122°
ESE
123°
ESE
125°
SE
126°
SE
Period9.3 sec.9.6 sec.9.5 sec.9.5 sec.9.6 sec.9.6 sec.9.5 sec.9.4 sec.
Significant height0.1m (0.3ft)0.2m (0.7ft)0.2m (0.7ft)0.2m (0.7ft)0.1m (0.3ft)0.3m (1ft)0.4m (1.3ft)0.2m (0.7ft)
Sea water temperature
Water temperature14°C (56°F)14°C (56°F)14°C (56°F)14°C (56°F)14°C (56°F)14°C (56°F)14°C (56°F)14°C (56°F)

Sea weather on Wednesday 17 December 2025

On Wednesday 17 December 2025, the sun will rise at 07:16 and will set at 17:16 on the beach(es) of Charleston. The outside temperature will be a high of 61°F t and a low of 49°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 8.1mph km/h (with gusts up to 16.2mph). Wave height will be up to 1.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature10°C (50°F)9°C (48°F)9°C (49°F)11°C (51°F)15°C (59°F)15°C (59°F)14°C (57°F)14°C (56°F)
Perceived temperature9°C (47°F)7°C (45°F)7°C (45°F)9°C (49°F)14°C (57°F)14°C (58°F)13°C (56°F)13°C (56°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity73%77%78%77%69%69%78%82%
Barometric pressure1025 hPa1025 hPa1024 hPa1025 hPa1024 hPa1022 hPa1023 hPa1023 hPa
Cloud cover0%32%93%100%100%5%32%9%
Heat index10°C (50°F)9°C (48°F)9°C (49°F)11°C (51°F)15°C (59°F)15°C (59°F)14°C (57°F)14°C (56°F)
Dew point5°C (42°F)5°C (42°F)6°C (42°F)7°C (44°F)9°C (48°F)9°C (49°F)10°C (50°F)10°C (51°F)
Wind
Speed10km/h (6mph)10km/h (6mph)12km/h (7mph)12km/h (7mph)13km/h (8mph)12km/h (8mph)8km/h (5mph)8km/h (5mph)
Gusts20km/h (12mph)21km/h (13mph)23km/h (14mph)20km/h (12mph)20km/h (13mph)26km/h (16mph)17km/h (11mph)16km/h (10mph)
Direction 255°
WSW
272°
W
266°
W
267°
W
243°
WSW
234°
SW
255°
WSW
235°
SW
Wind chill9°C (47°F)7°C (45°F)7°C (45°F)9°C (49°F)14°C (57°F)14°C (58°F)13°C (56°F)13°C (56°F)
Waves
Height0.5m (1.5ft)0.4m (1.5ft)0.5m (1.5ft)0.5m (1.6ft)0.5m (1.7ft)0.5m (1.6ft)0.5m (1.6ft)0.4m (1.3ft)
Direction 128°
SE
129°
SE
129°
SE
129°
SE
129°
SE
129°
SE
129°
SE
129°
SE
Period9.5 sec.9.6 sec.9.6 sec.9.6 sec.9.6 sec.9.6 sec.9.6 sec.9.7 sec.
Significant height0.1m (0.3ft)0.2m (0.7ft)0.7m (2.3ft)0.6m (2ft)0.6m (2ft)0.6m (2ft)0.6m (2ft)0.5m (1.6ft)
Sea water temperature
Water temperature12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)

Sea weather on Thursday 18 December 2025

On Thursday 18 December 2025, the sun will rise at 07:17 and will set at 17:16 on the beach(es) of Charleston. The outside temperature will be a high of 65°F t and a low of 56°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 10.6mph km/h (with gusts up to 18.6mph). Wave height will be up to 3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature13°C (56°F)13°C (55°F)13°C (55°F)15°C (58°F)17°C (62°F)18°C (64°F)16°C (61°F)16°C (61°F)
Perceived temperature14°C (57°F)12°C (54°F)12°C (53°F)14°C (58°F)17°C (62°F)18°C (64°F)16°C (61°F)16°C (61°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity84%86%87%83%81%79%83%89%
Barometric pressure1023 hPa1024 hPa1023 hPa1024 hPa1023 hPa1021 hPa1021 hPa1020 hPa
Cloud cover33%10%100%55%42%30%16%9%
Heat index13°C (56°F)13°C (55°F)13°C (55°F)15°C (58°F)17°C (62°F)18°C (64°F)16°C (61°F)16°C (61°F)
Dew point11°C (51°F)10°C (51°F)11°C (51°F)12°C (53°F)14°C (56°F)14°C (57°F)13°C (56°F)14°C (58°F)
Wind
Speed4km/h (2mph)6km/h (4mph)10km/h (6mph)10km/h (6mph)9km/h (5mph)12km/h (8mph)14km/h (9mph)17km/h (11mph)
Gusts8km/h (5mph)14km/h (8mph)20km/h (13mph)18km/h (11mph)16km/h (10mph)26km/h (16mph)30km/h (19mph)27km/h (17mph)
Direction 258°
WSW
338°
NNW
32°
NNE
75°
ENE
143°
SE
191°
S
197°
SSW
202°
SSW
Wind chill14°C (57°F)12°C (54°F)12°C (53°F)14°C (58°F)17°C (62°F)18°C (64°F)16°C (61°F)16°C (61°F)
Waves
Height0.4m (1.3ft)0.4m (1.3ft)0.4m (1.5ft)0.6m (2.0ft)0.7m (2.3ft)0.7m (2.3ft)0.9m (3.0ft)0.9m (3.0ft)
Direction 128°
SE
128°
SE
128°
SE
127°
SE
128°
SE
142°
SE
148°
SSE
146°
SE
Period9.7 sec.9.6 sec.9.5 sec.9.4 sec.9.3 sec.9.2 sec.7.1 sec.6.3 sec.
Significant height0.5m (1.6ft)0.5m (1.6ft)0.6m (2ft)0.6m (2ft)0.7m (2.3ft)0.7m (2.3ft)1.1m (3.6ft)1.2m (3.9ft)
Sea water temperature
Water temperature12°C (53°F)12°C (53°F)12°C (53°F)14°C (56°F)14°C (56°F)14°C (56°F)14°C (56°F)14°C (56°F)

Sea weather on Friday 19 December 2025

On Friday 19 December 2025, the sun will rise at 07:18 and will set at 17:17 on the beach(es) of Charleston. The outside temperature will be a high of 67°F t and a low of 54°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 11.8mph km/h (with gusts up to 20.5mph). Wave height will be up to 3.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature16°C (61°F)16°C (60°F)15°C (59°F)16°C (61°F)19°C (65°F)18°C (64°F)14°C (57°F)14°C (57°F)
Perceived temperature16°C (61°F)16°C (60°F)15°C (58°F)16°C (61°F)19°C (65°F)18°C (64°F)13°C (55°F)13°C (55°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity91%90%87%83%75%67%61%65%
Barometric pressure1019 hPa1019 hPa1019 hPa1021 hPa1021 hPa1020 hPa1022 hPa1024 hPa
Cloud cover17%26%62%57%30%8%0%0%
Heat index16°C (61°F)16°C (60°F)15°C (59°F)16°C (61°F)19°C (65°F)18°C (64°F)14°C (57°F)14°C (57°F)
Dew point15°C (59°F)14°C (57°F)13°C (55°F)14°C (56°F)14°C (57°F)11°C (52°F)6°C (43°F)8°C (46°F)
Wind
Speed19km/h (12mph)17km/h (11mph)15km/h (10mph)17km/h (11mph)13km/h (8mph)8km/h (5mph)10km/h (6mph)17km/h (11mph)
Gusts24km/h (15mph)30km/h (18mph)32km/h (20mph)31km/h (19mph)24km/h (15mph)17km/h (11mph)22km/h (13mph)33km/h (20mph)
Direction 217°
SW
240°
WSW
247°
WSW
243°
WSW
270°
W
310°
NW
110°
ESE
40°
NE
Wind chill16°C (61°F)16°C (60°F)15°C (58°F)16°C (61°F)19°C (65°F)18°C (64°F)13°C (55°F)13°C (55°F)
Waves
Height0.8m (2.6ft)0.8m (2.6ft)0.8m (2.6ft)0.8m (2.6ft)0.8m (2.6ft)0.8m (2.6ft)0.9m (3.0ft)1.0m (3.3ft)
Direction 142°
SE
137°
SE
134°
SE
134°
SE
134°
SE
134°
SE
134°
SE
134°
SE
Period6.3 sec.6.9 sec.7.6 sec.7.9 sec.8.1 sec.8.1 sec.8.2 sec.8.2 sec.
Significant height1.2m (3.9ft)1.1m (3.6ft)1.2m (3.9ft)1.2m (3.9ft)1.2m (3.9ft)1.2m (3.9ft)1.2m (3.9ft)1.1m (3.6ft)
Sea water temperature
Water temperature14°C (56°F)14°C (56°F)14°C (56°F)14°C (56°F)14°C (56°F)14°C (56°F)14°C (56°F)14°C (56°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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