World Resorts USA Charlestown Weather

Charlestown Sea Temperature in May

Average sea water temperature in May:
+52.1°F
Minimum sea water temperature in May: 59.4°F
Maximum sea water temperature in May: 46.4°F

Daily sea water temperature in May, °F

Show year:
2025
2024
2023

The average sea water temperature in May of 2025 was 52.6°F. The highest and lowest sea temperatures during the month were 55.6°F and 47.5°F.

Monthly sea water temperature in Charlestown, °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
Sanibel Island 83.1°F 83.2°F
Sarasota 82.7°F 82.9°F
Tampa 82.7°F 82.5°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

Best time for vacation in Charlestown

Sunniest months:
November 17 days
September 14 days
October 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 37.1 °F
February 37.6 °F
December 42.5 °F
Rainiest months:
October 4 days
November 3 days
January 3 days
Windiest months:
March 13.0 mph
January 12.9 mph
November 12.6 mph

Charlestown on a weather map

Charlestown
+41°F
SE 26 mph
Feels like: +30°F
Precip.: 0%
Places in USA:
Name
°F
+43°F
+73°F
+73°F
+50°F
+61°F
+70°F
+75°F
+64°F
+37°F
+61°F
+55°F
+61°F
+61°F
+68°F
+36°F
24 Hours Forecast
Charlestown
Local time: 07:58
December 24, wednesday
0900
41°F
SE
26 mph
1200
41°F
SE
25 mph
1500
39°F
SE
22 mph
1800
37°F
S
14 mph
2100
32°F
S
9 mph
December 25, thursday
0000
30°F
S
4 mph
0300
30°F
E
7 mph
0600
30°F
NE
11 mph
Units of measurement: °C / °F