Measurements:
°C
°F
Charlestown
52°F
SW 23 mph
Feels like: 44°F
Precip: 0%
World Resorts USA Charlestown Weather

Charlestown Sea Water Temperature

Current Sea Water Temperature:
+57.0°F
Maximum Sea Water Temperature in November: 62.6°F
Minimum Sea Water Temperature in November: 51.2°F
Average water temperature in November: 57.7°F

Sea Water Temperature for the Last 10 Days:

November 21 57.0°F November 16 58.0°F
November 20 57.6°F November 15 58.6°F
November 19 57.8°F November 08 60.8°F
November 18 58.0°F November 07 60.6°F
November 17 57.6°F November 06 60.6°F

When is the Warmest Sea for Charlestown?

According to our data for the last three years for Charlestown the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2024 2023 2022

The average sea surface temperature in August 2024 for Charlestown was 72.1°F. The maximum and minimum values were 69.4°F and 75.2°F respectively.

Sea Water Temperature in July

Select Year: 2024 2023 2022

The average sea surface temperature in July 2024 for Charlestown was 70.9°F. The maximum and minimum values were 65.4°F and 74.2°F respectively.

Sea Water Temperature in September

Select Year: 2024 2023 2022

The average sea surface temperature in September 2024 for Charlestown was 68.9°F. The maximum and minimum values were 66.2°F and 71.4°F respectively.

Best Time to Visit Charlestown
The most sunny months:
November 17 days
September 14 days
October 13 days
The most warm months:
July 80.6 °F
August 79.3 °F
June 72.5 °F
Warmest sea temperature:
August 73.4 °F
July 71.8 °F
September 70.6 °F
The most cold months:
January 36.1 °F
February 36.6 °F
December 42.1 °F
The most rainy months:
October 4 days
April 3 days
November 3 days
The most windy months:
January 12 mph
March 12 mph
December 12 mph

Charlestown on the Weather Map

USA Resorts:
NAME
Boston +48
Chicago +34
Hawaii +80
Honolulu +80
Houston +74
Las Vegas +60
Los Angeles +74
Maui +74
Miami +86
New York +48
San Diego +72
San Francisco +58
Sarasota +76
Tampa +76
Washington +52
24 Hours Weather Forecast
Charlestown
Local time: 16:12
21 nov, thursday
1800 52°F
W
25 mph
2100 52°F
W
27 mph
22 nov, friday
0000 52°F
W
29 mph
0300 50°F
NE
29 mph
0600 48°F
NE
29 mph
0900 48°F
NE
27 mph
1200 50°F
NE
21 mph
1500 50°F
NE
16 mph