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
Sanibel Island 83.1°F 83.2°F
Tampa 82.7°F 82.5°F
Sarasota 82.7°F 82.9°F
St. Petersburg 82.6°F 82.4°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
West Palm Beach 81.1°F 81.5°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
Pass Christian 79.8°F 79.8°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 60.5 °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
+46°F
E 9 mph
Feels like: +43°F
Precip.: 0%
Places in USA:
Name
°F
+28°F
+72°F
+72°F
+48°F
+55°F
+46°F
+59°F
+66°F
+19°F
+61°F
+54°F
+46°F
+48°F
+63°F
+14°F
24 Hours Forecast
Charleston
Local time: 06:46
January 02, friday
0900
48°F
E
9 mph
1200
57°F
NE
10 mph
1500
63°F
NE
11 mph
1800
61°F
NE
9 mph
2100
59°F
NE
8 mph
January 03, saturday
0000
57°F
NE
8 mph
0300
55°F
NE
6 mph
0600
57°F
NE
9 mph
Units of measurement: °C / °F