World Resorts USA Charlestown Weather

Charlestown Sea Temperature in April

Average sea water temperature in April:
+44.8°F
Minimum sea water temperature in April: 49.8°F
Maximum sea water temperature in April: 39.0°F

Daily sea water temperature in April, °F

Show year:
2026
2025
2024

The average sea water temperature in April of 2026 was 42.9°F. The highest and lowest sea temperatures during the month were 47.3°F and 39.0°F.

Monthly sea water temperature in Charlestown, °F

Which USA resorts have warmest sea in April?

Place name April 2026 April 2025
Everglades 78.6°F 78.8°F
Key Largo 78.2°F 78.5°F
West Palm Beach 78.2°F 78.3°F
Key West 78.2°F 78.0°F
Fort Lauderdale 78.1°F 78.0°F
Miami Beach 78.0°F 78.3°F
Hialeah 77.7°F 77.9°F
Miami 77.5°F 77.9°F
Honolulu 76.5°F 77.4°F
Cape Coral 76.4°F 77.2°F
Marco Island 76.3°F 77.3°F
Hawaii 76.2°F 77.3°F
Maui 75.9°F 76.6°F
Kauai 75.9°F 74.9°F
Naples 75.8°F 77.0°F
Tampa 75.3°F 76.6°F
St. Petersburg 75.2°F 76.3°F
Cocoa Beach 75.0°F 75.1°F
Corpus Christi 75.0°F 74.7°F
Oahu 74.9°F 76.4°F

Best time for vacation in Charlestown

Sunniest months:
November 17 days
October 14 days
September 14 days
Warmest months:
July 76.7 °F
August 75.5 °F
September 69.9 °F
Warmest sea temp:
August 70.8 °F
July 69.6 °F
September 68.5 °F
Coldest months:
January 36.5 °F
February 36.9 °F
December 41.9 °F
Rainiest months:
October 4 days
November 3 days
January 2 days
Windiest months:
January 13.3 mph
December 13.3 mph
March 13.0 mph

Charlestown on a weather map

Charlestown
+66°F
N 12 mph
Feels like: +66°F
Precip.: 2%
Places in USA:
Name
°F
+79°F
+79°F
+104°F
+77°F
+86°F
+84°F
+75°F
+75°F
+70°F
+63°F
+70°F
+91°F
+97°F
+88°F
+77°F
24 Hours Forecast
Charlestown
Local time: 17:05
June 08, monday
1800
66°F
N
12 mph
2100
61°F
NE
14 mph
June 09, tuesday
0000
61°F
NE
12 mph
0300
61°F
E
14 mph
0600
61°F
E
15 mph
0900
64°F
E
16 mph
1200
66°F
NE
15 mph
1500
66°F
NE
20 mph
Units of measurement: °C / °F