World Resorts USA Charleston Weather

Charleston Sea Temperature in May

Average sea water temperature in May:
+74.1°F
Minimum sea water temperature in May: 82.9°F
Maximum sea water temperature in May: 66.9°F

Daily sea water temperature in May, °F

Show year:
2025
2024
2023

The average sea water temperature in May of 2025 was 75.5°F. The highest and lowest sea temperatures during the month were 78.6°F and 71.6°F.

Monthly sea water temperature in Charleston, °F

Which USA resorts have warmest sea in May?

Place name May 2025 May 2024
Everglades 84.5°F 84.6°F
Islamorada 83.6°F 84.4°F
Key West 83.5°F 84.6°F
Naples 83.5°F 83.8°F
Marco Island 83.5°F 84.0°F
Key Largo 83.5°F 84.1°F
Cape Coral 83.4°F 83.6°F
Sarasota 82.7°F 82.9°F
Tampa 82.7°F 82.5°F
Clearwater Beach 82.6°F 82.5°F
Miami 82.6°F 83.3°F
Siesta Key 82.5°F 82.6°F
Miami Beach 82.4°F 83.0°F
Fort Lauderdale 81.1°F 81.7°F
Corpus Christi 80.9°F 81.0°F
Pensacola 80.1°F 79.4°F
South Padre Island 80.0°F 81.1°F
Houston 79.5°F 78.9°F
New Orleans 79.5°F 79.9°F
Cocoa Beach 79.4°F 80.0°F

Best time for vacation in Charleston

Sunniest months:
October 15 days
April 15 days
May 15 days
Warmest months:
July 89.5 °F
August 87.7 °F
June 86.2 °F
Warmest sea temp:
August 83.7 °F
July 83.7 °F
September 81.0 °F
Coldest months:
January 55.9 °F
February 60.2 °F
December 60.7 °F
Rainiest months:
August 9 days
July 8 days
June 7 days
Windiest months:
March 9.5 mph
April 9.4 mph
February 9.0 mph

Charleston on a weather map

Charleston
+54°F
NE 2 mph
Feels like: +52°F
Precip.: 67%
Places in USA:
Name
°F
+30°F
+75°F
+75°F
+45°F
+55°F
+70°F
+77°F
+70°F
+25°F
+57°F
+48°F
+63°F
+63°F
+46°F
+5°F
24 Hours Forecast
Charleston
Local time: 00:45
December 05, friday
0300
54°F
NW
3 mph
0600
54°F
SW
4 mph
0900
54°F
SW
7 mph
1200
52°F
SW
4 mph
1500
50°F
S
7 mph
1800
48°F
SE
6 mph
2100
48°F
SE
2 mph
December 06, saturday
0000
46°F
SE
4 mph
Units of measurement: °C / °F