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
Monday 20 July 202681°F to 86°Fdiscouraged
Tuesday 21 July 202681°F to 86°Fdiscouraged
Wednesday 22 July 202683°F to 86°Fdiscouraged
Thursday 23 July 202679°F to 86°Fdiscouraged
Friday 24 July 202677°F to 83°Frecommended
Saturday 25 July 202677°F to 86°Frecommended

Sea Weather: Your daily and hourly sea weather in Charleston

Sea weather on Monday 20 July 2026

On Monday 20 July 2026, the sun will rise at 06:25 and will set at 20:26 on the beach(es) of Charleston. The outside temperature will be a high of 86°F t and a low of 81°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 16.8mph km/h (with gusts up to 24.9mph). Wave height will be up to 3.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature28°C (83°F)28°C (82°F)28°C (82°F)29°C (85°F)27°C (80°F)28°C (82°F)28°C (83°F)28°C (83°F)
Perceived temperature33°C (91°F)32°C (90°F)32°C (90°F)34°C (94°F)29°C (84°F)31°C (87°F)32°C (90°F)33°C (91°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity80%80%82%73%66%68%75%81%
Barometric pressure1014 hPa1013 hPa1014 hPa1015 hPa1015 hPa1014 hPa1013 hPa1014 hPa
Cloud cover15%13%72%22%13%12%6%3%
Heat index33°C (91°F)32°C (90°F)32°C (90°F)34°C (94°F)29°C (84°F)31°C (87°F)32°C (90°F)33°C (91°F)
Dew point24°C (76°F)24°C (76°F)24°C (76°F)24°C (75°F)20°C (68°F)22°C (71°F)23°C (74°F)25°C (76°F)
Wind
Speed26km/h (16mph)23km/h (14mph)19km/h (12mph)22km/h (13mph)24km/h (15mph)24km/h (15mph)23km/h (14mph)27km/h (17mph)
Gusts38km/h (24mph)34km/h (21mph)29km/h (18mph)28km/h (17mph)25km/h (16mph)24km/h (15mph)37km/h (23mph)40km/h (25mph)
Direction 211°
SSW
216°
SW
212°
SSW
218°
SW
203°
SSW
197°
SSW
191°
S
201°
SSW
Wind chill28°C (83°F)28°C (82°F)28°C (82°F)29°C (85°F)27°C (80°F)28°C (82°F)28°C (83°F)28°C (83°F)
Waves
Height1.0m (3.4ft)1.0m (3.3ft)0.9m (3.1ft)0.9m (3.0ft)0.9m (3.1ft)0.9m (2.9ft)0.9m (3.1ft)0.9m (3.1ft)
Direction 178°
S
172°
S
166°
SSE
166°
SSE
165°
SSE
164°
SSE
181°
S
172°
S
Period12.6 sec.12.5 sec.12.4 sec.12.4 sec.12.3 sec.12.1 sec.12.0 sec.11.9 sec.
Significant height1.1m (3.6ft)1.0m (3.3ft)0.8m (2.6ft)0.8m (2.6ft)1.0m (3.3ft)0.9m (3ft)1.0m (3.3ft)0.9m (3ft)
Sea water temperature
Water temperature27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)

Sea weather on Tuesday 21 July 2026

On Tuesday 21 July 2026, the sun will rise at 06:26 and will set at 20:26 on the beach(es) of Charleston. The outside temperature will be a high of 86°F t and a low of 81°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 19.3mph km/h (with gusts up to 28.6mph). Wave height will be up to 3.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature28°C (83°F)28°C (83°F)28°C (83°F)30°C (85°F)27°C (81°F)28°C (83°F)28°C (83°F)28°C (83°F)
Perceived temperature33°C (92°F)33°C (91°F)32°C (90°F)34°C (94°F)29°C (84°F)31°C (88°F)32°C (90°F)33°C (92°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity81%78%79%70%67%68%76%81%
Barometric pressure1014 hPa1013 hPa1014 hPa1015 hPa1015 hPa1014 hPa1013 hPa1014 hPa
Cloud cover74%79%82%85%14%7%4%78%
Heat index33°C (92°F)33°C (91°F)32°C (90°F)34°C (94°F)29°C (84°F)31°C (88°F)32°C (90°F)33°C (92°F)
Dew point25°C (76°F)24°C (76°F)24°C (75°F)24°C (75°F)20°C (69°F)22°C (71°F)24°C (74°F)25°C (77°F)
Wind
Speed25km/h (15mph)21km/h (13mph)20km/h (13mph)20km/h (13mph)25km/h (15mph)29km/h (18mph)28km/h (18mph)31km/h (19mph)
Gusts37km/h (23mph)31km/h (19mph)31km/h (19mph)27km/h (17mph)30km/h (19mph)34km/h (21mph)45km/h (28mph)46km/h (28mph)
Direction 200°
SSW
211°
SSW
225°
SW
219°
SW
202°
SSW
204°
SSW
194°
SSW
205°
SSW
Wind chill28°C (83°F)28°C (83°F)28°C (83°F)30°C (85°F)27°C (81°F)28°C (83°F)28°C (83°F)28°C (83°F)
Waves
Height1.0m (3.3ft)1.0m (3.4ft)1.0m (3.2ft)0.9m (2.9ft)0.9m (3.0ft)1.0m (3.2ft)1.1m (3.6ft)1.2m (3.9ft)
Direction 171°
S
167°
SSE
160°
SSE
160°
SSE
158°
SSE
178°
S
172°
S
169°
S
Period11.9 sec.11.9 sec.5.8 sec.5.6 sec.5.6 sec.5.6 sec.5.6 sec.5.6 sec.
Significant height1.0m (3.3ft)1.0m (3.3ft)1.4m (4.6ft)1.3m (4.3ft)0.9m (3ft)1.0m (3.3ft)1.0m (3.3ft)1.2m (3.9ft)
Sea water temperature
Water temperature27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)

Sea weather on Wednesday 22 July 2026

On Wednesday 22 July 2026, the sun will rise at 06:27 and will set at 20:25 on the beach(es) of Charleston. The outside temperature will be a high of 86°F t and a low of 83°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 19.9mph km/h (with gusts up to 28.6mph). Wave height will be up to 4.3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature29°C (84°F)29°C (83°F)28°C (82°F)30°C (85°F)30°C (86°F)30°C (86°F)29°C (85°F)29°C (84°F)
Perceived temperature34°C (93°F)33°C (91°F)31°C (88°F)34°C (92°F)35°C (94°F)36°C (96°F)35°C (94°F)34°C (93°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity75%76%75%68%65%72%75%74%
Barometric pressure1014 hPa1013 hPa1014 hPa1015 hPa1015 hPa1013 hPa1013 hPa1013 hPa
Cloud cover87%9%21%35%21%50%24%84%
Heat index34°C (93°F)33°C (91°F)31°C (88°F)34°C (92°F)35°C (94°F)36°C (96°F)35°C (94°F)34°C (93°F)
Dew point24°C (75°F)24°C (75°F)23°C (73°F)23°C (74°F)23°C (73°F)24°C (76°F)25°C (76°F)24°C (75°F)
Wind
Speed31km/h (19mph)21km/h (13mph)24km/h (15mph)24km/h (15mph)31km/h (19mph)32km/h (20mph)26km/h (16mph)25km/h (15mph)
Gusts46km/h (28mph)32km/h (20mph)35km/h (22mph)31km/h (19mph)44km/h (28mph)43km/h (27mph)36km/h (22mph)38km/h (24mph)
Direction 210°
SSW
232°
SW
238°
WSW
235°
SW
209°
SSW
204°
SSW
203°
SSW
208°
SSW
Wind chill29°C (84°F)29°C (83°F)28°C (82°F)30°C (85°F)30°C (86°F)30°C (86°F)29°C (85°F)29°C (84°F)
Waves
Height1.3m (4.4ft)1.2m (4.0ft)1.0m (3.4ft)1.1m (3.5ft)1.1m (3.6ft)1.2m (3.8ft)1.1m (3.7ft)1.2m (4.0ft)
Direction 171°
S
166°
SSE
157°
SSE
160°
SSE
168°
SSE
185°
S
183°
S
182°
S
Period5.6 sec.6.8 sec.6.3 sec.6.2 sec.6.5 sec.6.5 sec.6.5 sec.6.5 sec.
Significant height1.4m (4.6ft)1.5m (4.9ft)0.8m (2.6ft)1.5m (4.9ft)1.5m (4.9ft)1.2m (3.9ft)1.1m (3.6ft)1.3m (4.3ft)
Sea water temperature
Water temperature27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)

Sea weather on Thursday 23 July 2026

On Thursday 23 July 2026, the sun will rise at 06:27 and will set at 20:24 on the beach(es) of Charleston. The outside temperature will be a high of 86°F t and a low of 79°F. Precipitation is in the forecast (0.5in throughout the day): choose the right time to go to the beach and dodge the raindrops. The sea will be generally calm, with a wind speed of up to 15.5mph km/h (with gusts up to 25.5mph). Wave height will be up to 3.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature29°C (84°F)28°C (82°F)27°C (81°F)29°C (85°F)28°C (83°F)30°C (85°F)29°C (84°F)27°C (80°F)
Perceived temperature34°C (93°F)32°C (90°F)31°C (89°F)34°C (93°F)33°C (91°F)35°C (95°F)34°C (93°F)30°C (87°F)
Precipitation0.1in0in0in0in0in0in0.2in0.1in
Humidity76%82%83%73%77%75%79%85%
Barometric pressure1014 hPa1013 hPa1014 hPa1014 hPa1014 hPa1013 hPa1013 hPa1014 hPa
Cloud cover85%76%82%86%65%76%83%75%
Heat index34°C (93°F)32°C (90°F)31°C (89°F)34°C (93°F)33°C (91°F)35°C (95°F)34°C (93°F)30°C (87°F)
Dew point24°C (76°F)24°C (76°F)24°C (76°F)24°C (75°F)24°C (75°F)25°C (77°F)25°C (76°F)24°C (75°F)
Wind
Speed25km/h (16mph)18km/h (11mph)18km/h (11mph)19km/h (12mph)17km/h (11mph)20km/h (13mph)12km/h (8mph)8km/h (5mph)
Gusts41km/h (25mph)32km/h (20mph)33km/h (20mph)26km/h (16mph)34km/h (21mph)29km/h (18mph)25km/h (16mph)16km/h (10mph)
Direction 212°
SSW
232°
SW
225°
SW
239°
WSW
225°
SW
216°
SW
242°
WSW
256°
WSW
Wind chill29°C (84°F)28°C (82°F)27°C (81°F)29°C (85°F)28°C (83°F)30°C (85°F)29°C (84°F)27°C (80°F)
Waves
Height1.2m (4.0ft)1.0m (3.4ft)0.9m (3.0ft)0.8m (2.7ft)0.7m (2.4ft)0.7m (2.2ft)0.6m (2.0ft)0.6m (2.1ft)
Direction 177°
S
174°
S
169°
SSE
167°
SSE
167°
SSE
169°
S
170°
S
160°
SSE
Period6.5 sec.5.7 sec.5.9 sec.5.9 sec.6.7 sec.6.9 sec.5.1 sec.5.4 sec.
Significant height1.3m (4.3ft)0.7m (2.3ft)1.3m (4.3ft)1.1m (3.6ft)0.7m (2.3ft)0.7m (2.3ft)0.1m (0.3ft)0.5m (1.6ft)
Sea water temperature
Water temperature27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)27°C (81°F)

Sea weather on Friday 24 July 2026

On Friday 24 July 2026, the sun will rise at 06:28 and will set at 20:24 on the beach(es) of Charleston. The outside temperature will be a high of 83°F t and a low of 77°F. Precipitation is in the forecast (0.3in throughout the day): choose the right time to go to the beach and dodge the raindrops. The sea will be generally calm, with a wind speed of up to 9.9mph km/h (with gusts up to 17.4mph). Wave height will be up to 3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature26°C (79°F)25°C (78°F)25°C (77°F)26°C (79°F)28°C (82°F)27°C (81°F)27°C (80°F)26°C (80°F)
Perceived temperature30°C (85°F)28°C (83°F)28°C (82°F)29°C (85°F)31°C (88°F)31°C (88°F)30°C (86°F)30°C (85°F)
Precipitation0.1in0in0in0in0.1in0.1in0.1in0in
Humidity88%91%92%85%76%79%84%83%
Barometric pressure1014 hPa1014 hPa1014 hPa1015 hPa1015 hPa1015 hPa1015 hPa1015 hPa
Cloud cover56%60%90%74%53%58%73%77%
Heat index30°C (85°F)28°C (83°F)28°C (82°F)29°C (85°F)31°C (88°F)31°C (88°F)30°C (86°F)30°C (85°F)
Dew point24°C (75°F)24°C (75°F)24°C (74°F)23°C (74°F)23°C (73°F)23°C (74°F)24°C (75°F)23°C (74°F)
Wind
Speed10km/h (6mph)10km/h (6mph)13km/h (8mph)13km/h (8mph)11km/h (7mph)16km/h (10mph)15km/h (9mph)9km/h (5mph)
Gusts23km/h (14mph)14km/h (9mph)19km/h (12mph)18km/h (11mph)15km/h (9mph)27km/h (17mph)28km/h (17mph)16km/h (10mph)
Direction 283°
WNW
321°
NW
360°
N
11°
N
36°
NE
69°
ENE
85°
E
98°
E
Wind chill26°C (79°F)25°C (78°F)25°C (77°F)26°C (79°F)28°C (82°F)27°C (81°F)27°C (80°F)26°C (80°F)
Waves
Height0.8m (2.6ft)0.9m (2.9ft)0.9m (2.8ft)0.9m (3.0ft)0.9m (3.0ft)0.9m (3.0ft)0.8m (2.6ft)0.7m (2.3ft)
Direction 120°
ESE
91°
E
91°
E
85°
E
86°
E
92°
E
115°
ESE
125°
SE
Period5.1 sec.5.6 sec.7.2 sec.7.9 sec.6.8 sec.5.4 sec.6.0 sec.7.0 sec.
Significant height0.9m (3ft)0.9m (3ft)0.9m (3ft)1.0m (3.3ft)1.0m (3.3ft)0.9m (3ft)0.8m (2.6ft)0.6m (2ft)
Sea water temperature
Water temperature29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)

Sea weather on Saturday 25 July 2026

On Saturday 25 July 2026, the sun will rise at 06:29 and will set at 20:23 on the beach(es) of Charleston. The outside temperature will be a high of 86°F t and a low of 77°F. Precipitation is in the forecast (0.2in throughout the day): choose the right time to go to the beach and dodge the raindrops. The sea will be generally calm, with a wind speed of up to 12.4mph km/h (with gusts up to 16.2mph). Wave height will be up to 3.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature26°C (80°F)26°C (80°F)26°C (79°F)28°C (82°F)30°C (85°F)29°C (84°F)26°C (79°F)25°C (77°F)
Perceived temperature29°C (85°F)30°C (85°F)29°C (85°F)31°C (89°F)34°C (93°F)33°C (91°F)30°C (85°F)28°C (82°F)
Precipitation0in0in0in0in0in0.1in0.1in0.1in
Humidity82%84%86%78%68%75%90%92%
Barometric pressure1015 hPa1014 hPa1014 hPa1015 hPa1014 hPa1013 hPa1013 hPa1014 hPa
Cloud cover57%42%25%19%40%82%91%96%
Heat index29°C (85°F)30°C (85°F)29°C (85°F)31°C (89°F)34°C (93°F)33°C (91°F)30°C (85°F)28°C (82°F)
Dew point23°C (74°F)23°C (74°F)24°C (74°F)24°C (74°F)23°C (74°F)24°C (75°F)24°C (75°F)24°C (74°F)
Wind
Speed5km/h (3mph)6km/h (4mph)6km/h (4mph)10km/h (6mph)14km/h (9mph)10km/h (6mph)20km/h (13mph)17km/h (11mph)
Gusts8km/h (5mph)9km/h (6mph)10km/h (6mph)14km/h (9mph)19km/h (12mph)15km/h (10mph)26km/h (16mph)24km/h (15mph)
Direction 182°
S
226°
SW
268°
W
272°
W
219°
SW
229°
SW
97°
E
64°
ENE
Wind chill26°C (80°F)26°C (80°F)26°C (79°F)28°C (82°F)30°C (85°F)29°C (84°F)26°C (79°F)25°C (77°F)
Waves
Height0.7m (2.3ft)0.6m (2.0ft)0.6m (2.0ft)0.5m (1.6ft)0.5m (1.6ft)0.7m (2.3ft)1.1m (3.6ft)1.0m (3.3ft)
Direction 124°
ESE
123°
ESE
122°
ESE
121°
ESE
120°
ESE
110°
ESE
99°
E
105°
ESE
Period7.3 sec.7.7 sec.7.9 sec.7.9 sec.7.8 sec.5.2 sec.4.3 sec.4.9 sec.
Significant height0.5m (1.6ft)0.5m (1.6ft)0.7m (2.3ft)0.4m (1.3ft)0.2m (0.7ft)1.1m (3.6ft)1.4m (4.6ft)0.6m (2ft)
Sea water temperature
Water temperature29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)29°C (85°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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