World Resorts USA Charlestown Weather

Charlestown Sea Temperature in August

Average sea water temperature in August:
+70.8°F
Minimum sea water temperature in August: 74.8°F
Maximum sea water temperature in August: 67.5°F

Daily sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 69.6°F. The highest and lowest sea temperatures during the month were 72.0°F and 67.8°F.

Monthly sea water temperature in Charlestown, °F

Which USA resorts have warmest sea in August?

Place name August 2025 August 2024
Key West 88.8°F 87.8°F
Naples 88.7°F 87.0°F
St. Petersburg 88.7°F 86.9°F
Tampa 88.6°F 86.4°F
Sarasota 88.6°F 87.2°F
Siesta Key 88.6°F 87.3°F
Clearwater Beach 88.5°F 87.0°F
Miami 88.1°F 86.4°F
Miami Beach 87.9°F 86.5°F
Houston 87.8°F 88.0°F
New Orleans 87.4°F 88.1°F
Fort Lauderdale 87.2°F 85.8°F
Corpus Christi 87.0°F 87.9°F
Cocoa Beach 86.8°F 84.5°F
Panama City Beach 86.2°F 86.8°F
Destin 86.0°F 86.9°F
Jacksonville 84.9°F 82.9°F
Orlando 84.9°F 83.4°F
Daytona Beach 84.6°F 83.1°F
Tybee Island 84.5°F 84.0°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
+72°F
NE 17 mph
Feels like: +77°F
Precip.: 11%
Places in USA:
Name
°F
+91°F
+79°F
+97°F
+73°F
+91°F
+90°F
+75°F
+91°F
+93°F
+70°F
+66°F
+90°F
+95°F
+97°F
+84°F
24 Hours Forecast
Charlestown
Local time: 13:45
June 30, tuesday
1500
72°F
NE
17 mph
1800
72°F
NE
15 mph
2100
66°F
NE
11 mph
July 01, wednesday
0000
66°F
NE
14 mph
0300
70°F
NE
17 mph
0600
70°F
NE
17 mph
0900
72°F
NE
17 mph
1200
73°F
NE
17 mph
Units of measurement: °C / °F