World Resorts USA Charlestown Weather

Charlestown Sea Temperature in July

Average sea water temperature in July:
+69.6°F
Minimum sea water temperature in July: 73.9°F
Maximum sea water temperature in July: 63.9°F

Daily sea water temperature in July, °F

Show year:
2025
2024
2023

The average sea water temperature in July of 2025 was 69.1°F. The highest and lowest sea temperatures during the month were 71.8°F and 65.7°F.

Monthly sea water temperature in Charlestown, °F

Which USA resorts have warmest sea in July?

Place name July 2025 July 2024
New Orleans 87.4°F 87.1°F
Clearwater Beach 87.1°F 88.3°F
Sarasota 86.9°F 87.9°F
Siesta Key 86.9°F 87.9°F
Pensacola 86.9°F 87.3°F
Tampa 86.8°F 87.4°F
Key West 86.7°F 87.6°F
Marco Island 86.6°F 87.4°F
Naples 86.6°F 87.2°F
Cape Coral 86.4°F 87.2°F
Islamorada 86.4°F 87.4°F
Miami 86.3°F 86.9°F
Panama City Beach 86.3°F 86.8°F
Houston 86.3°F 86.4°F
Destin 86.3°F 86.6°F
Key Largo 86.2°F 87.1°F
Miramar Beach 86.2°F 86.7°F
Everglades 86.0°F 87.9°F
Miami Beach 86.0°F 86.5°F
Mobile 85.8°F 86.6°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
+21°F
S 12 mph
Feels like: +7°F
Precip.: 0%
Places in USA:
Name
°F
+30°F
+75°F
+75°F
+41°F
+52°F
+70°F
+77°F
+70°F
+21°F
+54°F
+46°F
+61°F
+61°F
+45°F
+3°F
24 Hours Forecast
Charlestown
Local time: 03:30
December 05, friday
0600
19°F
S
9 mph
0900
23°F
S
4 mph
1200
28°F
N
5 mph
1500
30°F
NE
9 mph
1800
32°F
NE
6 mph
2100
36°F
NE
5 mph
December 06, saturday
0000
37°F
NE
4 mph
0300
39°F
NE
2 mph
Units of measurement: °C / °F