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
Wednesday 16 July 202581°F to 85°Fdiscouraged
Thursday 17 July 202579°F to 85°Fdiscouraged
Friday 18 July 202581°F to 88°Fdiscouraged
Saturday 19 July 202577°F to 88°Fdiscouraged
Sunday 20 July 202581°F to 92°Fdiscouraged
Monday 21 July 202581°F to 92°Fdiscouraged
Tuesday 22 July 202579°F to 85°Frecommended

Sea Weather: Your daily and hourly sea weather in Charleston

Sea weather on Wednesday 16 July 2025

On Wednesday 16 July 2025, the sun will rise at 06:23 and will set at 20:28 on the beach(es) of Charleston. The outside temperature will be a high of 85°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 13.1mph km/h (with gusts up to 21.8mph). Wave height will be up to 3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature28°C (82°F)27°C (81°F)28°C (82°F)29°C (84°F)29°C (84°F)27°C (81°F)29°C (83°F)28°C (82°F)
Perceived temperature32°C (89°F)31°C (88°F)31°C (88°F)33°C (91°F)32°C (90°F)29°C (85°F)32°C (90°F)32°C (89°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity83%80%79%69%68%67%73%81%
Barometric pressure1018 hPa1018 hPa1018 hPa1020 hPa1020 hPa1018 hPa1018 hPa1018 hPa
Cloud cover82%84%73%82%74%7%26%11%
Heat index32°C (89°F)31°C (88°F)31°C (88°F)33°C (91°F)32°C (90°F)29°C (85°F)32°C (90°F)32°C (89°F)
Dew point24°C (76°F)24°C (75°F)24°C (75°F)23°C (73°F)22°C (72°F)20°C (69°F)23°C (74°F)24°C (76°F)
Wind
Speed18km/h (11mph)17km/h (11mph)18km/h (11mph)18km/h (11mph)19km/h (12mph)19km/h (12mph)19km/h (12mph)21km/h (13mph)
Gusts26km/h (16mph)26km/h (16mph)27km/h (17mph)23km/h (14mph)28km/h (17mph)35km/h (22mph)25km/h (16mph)30km/h (19mph)
Direction 169°
SSE
174°
S
173°
S
185°
S
183°
S
181°
S
179°
S
178°
S
Wind chill28°C (82°F)27°C (81°F)28°C (82°F)29°C (84°F)29°C (84°F)27°C (81°F)29°C (83°F)28°C (82°F)
Waves
Height0.9m (3.1ft)0.9m (3.1ft)0.9m (3.0ft)0.9m (2.9ft)0.8m (2.7ft)0.8m (2.6ft)0.7m (2.5ft)0.7m (2.5ft)
Direction 146°
SE
149°
SSE
149°
SSE
150°
SSE
149°
SSE
148°
SSE
148°
SSE
146°
SE
Period1.0 sec.1.0 sec.1.0 sec.6.0 sec.5.9 sec.5.8 sec.5.8 sec.5.8 sec.
Significant height1.5m (4.9ft)1.5m (4.9ft)1.5m (4.9ft)1.4m (4.6ft)1.4m (4.6ft)1.4m (4.6ft)1.4m (4.6ft)1.5m (4.9ft)
Sea water temperature
Water temperature26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)

Sea weather on Thursday 17 July 2025

On Thursday 17 July 2025, the sun will rise at 06:24 and will set at 20:28 on the beach(es) of Charleston. The outside temperature will be a high of 85°F t and a low of 79°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 15.5mph km/h (with gusts up to 22.4mph). Wave height will be up to 3ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature28°C (82°F)27°C (81°F)27°C (81°F)29°C (84°F)26°C (79°F)28°C (82°F)28°C (82°F)28°C (82°F)
Perceived temperature32°C (90°F)31°C (88°F)31°C (88°F)33°C (91°F)28°C (82°F)30°C (85°F)31°C (88°F)31°C (89°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity83%83%84%73%67%65%73%82%
Barometric pressure1019 hPa1019 hPa1019 hPa1021 hPa1021 hPa1019 hPa1019 hPa1020 hPa
Cloud cover74%74%11%9%7%6%5%7%
Heat index32°C (90°F)31°C (88°F)31°C (88°F)33°C (91°F)28°C (82°F)30°C (85°F)31°C (88°F)31°C (89°F)
Dew point25°C (76°F)24°C (76°F)24°C (75°F)24°C (74°F)20°C (67°F)20°C (69°F)22°C (72°F)24°C (75°F)
Wind
Speed25km/h (15mph)22km/h (13mph)19km/h (12mph)21km/h (13mph)24km/h (15mph)25km/h (15mph)22km/h (14mph)21km/h (13mph)
Gusts36km/h (22mph)32km/h (20mph)29km/h (18mph)27km/h (17mph)30km/h (19mph)26km/h (16mph)35km/h (22mph)32km/h (20mph)
Direction 189°
S
202°
SSW
208°
SSW
211°
SSW
201°
SSW
198°
SSW
199°
SSW
201°
SSW
Wind chill28°C (82°F)27°C (81°F)27°C (81°F)29°C (84°F)26°C (79°F)28°C (82°F)28°C (82°F)28°C (82°F)
Waves
Height0.8m (2.8ft)0.9m (2.8ft)0.8m (2.7ft)0.7m (2.5ft)0.8m (2.6ft)0.8m (2.6ft)0.8m (2.5ft)0.8m (2.5ft)
Direction 145°
SE
145°
SE
146°
SE
145°
SE
158°
SSE
156°
SSE
153°
SSE
150°
SSE
Period5.8 sec.5.8 sec.5.8 sec.5.8 sec.5.8 sec.5.8 sec.6.0 sec.6.4 sec.
Significant height1.6m (5.2ft)1.6m (5.2ft)1.5m (4.9ft)1.5m (4.9ft)1.6m (5.2ft)1.6m (5.2ft)0.9m (3ft)1.0m (3.3ft)
Sea water temperature
Water temperature26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)

Sea weather on Friday 18 July 2025

On Friday 18 July 2025, the sun will rise at 06:24 and will set at 20:27 on the beach(es) of Charleston. The outside temperature will be a high of 88°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 24.2mph). Wave height will be up to 2.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature28°C (82°F)27°C (81°F)27°C (81°F)30°C (85°F)30°C (86°F)30°C (85°F)29°C (84°F)28°C (83°F)
Perceived temperature32°C (90°F)31°C (88°F)31°C (88°F)34°C (94°F)34°C (94°F)35°C (95°F)33°C (92°F)33°C (91°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity83%84%83%70%66%72%76%81%
Barometric pressure1020 hPa1019 hPa1020 hPa1021 hPa1021 hPa1019 hPa1019 hPa1020 hPa
Cloud cover15%16%71%70%17%23%19%19%
Heat index32°C (90°F)31°C (88°F)31°C (88°F)34°C (94°F)34°C (94°F)35°C (95°F)33°C (92°F)33°C (91°F)
Dew point25°C (76°F)24°C (76°F)24°C (75°F)24°C (74°F)23°C (73°F)24°C (76°F)24°C (75°F)24°C (76°F)
Wind
Speed21km/h (13mph)19km/h (12mph)17km/h (11mph)11km/h (7mph)18km/h (11mph)27km/h (17mph)23km/h (14mph)22km/h (14mph)
Gusts30km/h (19mph)29km/h (18mph)26km/h (16mph)15km/h (9mph)28km/h (17mph)39km/h (24mph)35km/h (22mph)35km/h (22mph)
Direction 210°
SSW
223°
SW
226°
SW
238°
WSW
191°
S
185°
S
202°
SSW
214°
SW
Wind chill28°C (82°F)27°C (81°F)27°C (81°F)30°C (85°F)30°C (86°F)30°C (85°F)29°C (84°F)28°C (83°F)
Waves
Height0.8m (2.6ft)0.8m (2.5ft)0.7m (2.3ft)0.6m (2.1ft)0.7m (2.3ft)0.8m (2.5ft)0.8m (2.7ft)0.8m (2.7ft)
Direction 149°
SSE
148°
SSE
134°
SE
134°
SE
133°
SE
147°
SSE
159°
SSE
157°
SSE
Period6.5 sec.6.7 sec.6.8 sec.7.0 sec.7.1 sec.7.5 sec.7.5 sec.7.6 sec.
Significant height1.0m (3.3ft)0.9m (3ft)0.8m (2.6ft)0.8m (2.6ft)0.9m (3ft)1.1m (3.6ft)0.9m (3ft)1.0m (3.3ft)
Sea water temperature
Water temperature26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)

Sea weather on Saturday 19 July 2025

On Saturday 19 July 2025, the sun will rise at 06:25 and will set at 20:27 on the beach(es) of Charleston. The outside temperature will be a high of 88°F t and a low of 77°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 16.2mph km/h (with gusts up to 24.2mph). Wave height will be up to 2.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature28°C (82°F)25°C (78°F)25°C (77°F)28°C (83°F)28°C (83°F)31°C (88°F)29°C (85°F)28°C (82°F)
Perceived temperature31°C (88°F)28°C (82°F)28°C (82°F)31°C (88°F)30°C (86°F)36°C (97°F)34°C (93°F)32°C (90°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity76%83%84%69%60%65%71%81%
Barometric pressure1020 hPa1019 hPa1020 hPa1021 hPa1019 hPa1017 hPa1017 hPa1018 hPa
Cloud cover10%11%13%15%13%25%71%11%
Heat index31°C (88°F)28°C (82°F)28°C (82°F)31°C (88°F)30°C (86°F)36°C (97°F)34°C (93°F)32°C (90°F)
Dew point23°C (74°F)22°C (72°F)22°C (72°F)22°C (72°F)20°C (67°F)23°C (74°F)24°C (74°F)24°C (76°F)
Wind
Speed22km/h (14mph)13km/h (8mph)11km/h (7mph)16km/h (10mph)13km/h (8mph)26km/h (16mph)16km/h (10mph)21km/h (13mph)
Gusts32km/h (20mph)21km/h (13mph)17km/h (11mph)20km/h (12mph)26km/h (16mph)39km/h (24mph)26km/h (16mph)34km/h (21mph)
Direction 263°
W
255°
WSW
234°
SW
276°
W
194°
SSW
194°
SSW
236°
WSW
211°
SSW
Wind chill28°C (82°F)25°C (78°F)25°C (77°F)28°C (83°F)28°C (83°F)31°C (88°F)29°C (85°F)28°C (82°F)
Waves
Height0.8m (2.8ft)0.7m (2.4ft)0.7m (2.3ft)0.6m (2.1ft)0.6m (2.1ft)0.8m (2.5ft)0.8m (2.6ft)0.6m (2.1ft)
Direction 184°
S
133°
SE
133°
SE
133°
SE
133°
SE
149°
SSE
151°
SSE
133°
SE
Period8.0 sec.6.9 sec.6.7 sec.5.5 sec.7.8 sec.7.8 sec.5.3 sec.4.0 sec.
Significant height0.9m (3ft)1.0m (3.3ft)0.8m (2.6ft)0.8m (2.6ft)0.9m (3ft)1.1m (3.6ft)0.9m (3ft)0.3m (1ft)
Sea water temperature
Water temperature26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)

Sea weather on Sunday 20 July 2025

On Sunday 20 July 2025, 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 92°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 14.3mph km/h (with gusts up to 23.6mph). Wave height will be up to 2.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature28°C (83°F)28°C (82°F)27°C (80°F)31°C (87°F)33°C (91°F)31°C (89°F)29°C (84°F)27°C (81°F)
Perceived temperature33°C (91°F)31°C (89°F)29°C (85°F)35°C (94°F)37°C (99°F)37°C (98°F)33°C (92°F)30°C (86°F)
Precipitation0in0in0in0in0in0in0.1in0in
Humidity82%80%73%60%55%64%72%77%
Barometric pressure1018 hPa1016 hPa1017 hPa1017 hPa1016 hPa1014 hPa1016 hPa1016 hPa
Cloud cover21%11%13%11%31%45%78%74%
Heat index33°C (91°F)31°C (89°F)29°C (85°F)35°C (94°F)37°C (99°F)37°C (98°F)33°C (92°F)30°C (86°F)
Dew point25°C (76°F)24°C (75°F)22°C (71°F)22°C (72°F)22°C (72°F)24°C (75°F)24°C (75°F)23°C (73°F)
Wind
Speed23km/h (14mph)20km/h (13mph)15km/h (9mph)12km/h (7mph)13km/h (8mph)21km/h (13mph)19km/h (12mph)3km/h (2mph)
Gusts34km/h (21mph)33km/h (21mph)26km/h (16mph)17km/h (10mph)24km/h (15mph)38km/h (23mph)29km/h (18mph)6km/h (4mph)
Direction 222°
SW
241°
WSW
256°
WSW
264°
W
225°
SW
206°
SSW
296°
WNW
12°
NNE
Wind chill28°C (83°F)28°C (82°F)27°C (80°F)31°C (87°F)33°C (91°F)31°C (89°F)29°C (84°F)27°C (81°F)
Waves
Height0.6m (2.0ft)0.7m (2.4ft)0.7m (2.2ft)0.6m (2.0ft)0.6m (1.9ft)0.7m (2.3ft)0.8m (2.7ft)0.7m (2.3ft)
Direction 133°
SE
133°
SE
133°
SE
133°
SE
132°
SE
132°
SE
175°
S
188°
S
Period8.2 sec.8.2 sec.8.1 sec.4.2 sec.5.5 sec.7.8 sec.7.7 sec.7.7 sec.
Significant height0.7m (2.3ft)1.0m (3.3ft)0.8m (2.6ft)0.2m (0.7ft)0.7m (2.3ft)1.0m (3.3ft)1.2m (3.9ft)0.8m (2.6ft)
Sea water temperature
Water temperature26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)26°C (79°F)

Sea weather on Monday 21 July 2025

On Monday 21 July 2025, 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 92°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 13.7mph km/h (with gusts up to 21.1mph). Wave height will be up to 2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature28°C (82°F)27°C (81°F)27°C (80°F)30°C (87°F)33°C (91°F)31°C (88°F)30°C (85°F)28°C (82°F)
Perceived temperature33°C (91°F)31°C (87°F)29°C (85°F)35°C (95°F)39°C (101°F)37°C (99°F)35°C (95°F)32°C (90°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity83%83%79%66%61%67%76%84%
Barometric pressure1015 hPa1014 hPa1014 hPa1014 hPa1013 hPa1012 hPa1012 hPa1013 hPa
Cloud cover80%84%30%21%38%45%26%47%
Heat index33°C (91°F)31°C (87°F)29°C (85°F)35°C (95°F)39°C (101°F)37°C (99°F)35°C (95°F)32°C (90°F)
Dew point25°C (77°F)24°C (75°F)23°C (73°F)23°C (74°F)24°C (75°F)24°C (76°F)25°C (77°F)25°C (76°F)
Wind
Speed13km/h (8mph)14km/h (9mph)14km/h (9mph)11km/h (7mph)15km/h (9mph)19km/h (12mph)21km/h (13mph)22km/h (13mph)
Gusts23km/h (15mph)26km/h (16mph)26km/h (16mph)17km/h (11mph)24km/h (15mph)32km/h (20mph)34km/h (21mph)34km/h (21mph)
Direction 205°
SSW
253°
WSW
276°
W
258°
WSW
219°
SW
197°
SSW
197°
SSW
220°
SW
Wind chill28°C (82°F)27°C (81°F)27°C (80°F)30°C (87°F)33°C (91°F)31°C (88°F)30°C (85°F)28°C (82°F)
Waves
Height0.6m (2.1ft)0.6m (1.8ft)0.5m (1.6ft)0.5m (1.6ft)0.4m (1.3ft)0.5m (1.6ft)0.5m (1.6ft)0.4m (1.3ft)
Direction 186°
S
187°
S
186°
S
178°
S
172°
S
172°
S
174°
S
172°
S
Period7.6 sec.5.1 sec.4.6 sec.4.4 sec.4.6 sec.7.4 sec.6.0 sec.7.2 sec.
Significant height0.7m (2.3ft)0.4m (1.3ft)0.4m (1.3ft)0.2m (0.7ft)0.4m (1.3ft)0.5m (1.6ft)0.6m (2ft)0.5m (1.6ft)
Sea water temperature
Water temperature26°C (79°F)26°C (79°F)26°C (79°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)

Sea weather on Tuesday 22 July 2025

On Tuesday 22 July 2025, 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 85°F t and a low of 79°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 12.4mph 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 temperature27°C (80°F)26°C (79°F)26°C (78°F)28°C (82°F)29°C (84°F)29°C (83°F)28°C (82°F)27°C (81°F)
Perceived temperature30°C (87°F)29°C (85°F)29°C (84°F)31°C (88°F)33°C (91°F)32°C (89°F)31°C (88°F)31°C (87°F)
Precipitation0.1in0in0in0in0in0in0in0in
Humidity86%90%90%77%70%70%73%78%
Barometric pressure1013 hPa1012 hPa1012 hPa1013 hPa1013 hPa1013 hPa1013 hPa1014 hPa
Cloud cover65%70%64%37%42%27%14%27%
Heat index30°C (87°F)29°C (85°F)29°C (84°F)31°C (88°F)33°C (91°F)32°C (89°F)31°C (88°F)31°C (87°F)
Dew point24°C (76°F)24°C (75°F)24°C (75°F)23°C (74°F)23°C (73°F)23°C (73°F)23°C (73°F)23°C (74°F)
Wind
Speed14km/h (9mph)13km/h (8mph)12km/h (7mph)13km/h (8mph)20km/h (12mph)19km/h (12mph)14km/h (9mph)14km/h (9mph)
Gusts25km/h (16mph)21km/h (13mph)17km/h (11mph)17km/h (10mph)26km/h (16mph)26km/h (16mph)21km/h (13mph)21km/h (13mph)
Direction 214°
SW
257°
WSW
110°
ESE
18°
NNE
63°
ENE
106°
ESE
102°
ESE
121°
ESE
Wind chill27°C (80°F)26°C (79°F)26°C (78°F)28°C (82°F)29°C (84°F)29°C (83°F)28°C (82°F)27°C (81°F)
Waves
Height0.5m (1.6ft)0.5m (1.6ft)0.5m (1.6ft)0.5m (1.6ft)0.5m (1.6ft)0.5m (1.6ft)0.4m (1.3ft)0.4m (1.3ft)
Direction 163°
SSE
158°
SSE
162°
SSE
164°
SSE
164°
SSE
164°
SSE
165°
SSE
166°
SSE
Period8.4 sec.6.0 sec.4.7 sec.4.5 sec.4.4 sec.7.0 sec.8.3 sec.5.8 sec.
Significant height0.6m (2ft)0.6m (2ft)0.8m (2.6ft)0.6m (2ft)0.5m (1.6ft)0.5m (1.6ft)0.4m (1.3ft)0.4m (1.3ft)
Sea water temperature
Water temperature28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)28°C (82°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

Change units