World Resorts USA Charlestown Weather

Charlestown 7 Days Forecast

26.02
thu
Day
36°F
SE 2 mph
Precip.
0%
Night
34°F
S 9 mph
Precip.
0%
27.02
fri
Day
36°F
NE 6 mph
Precip.
0%
Night
36°F
NE 8 mph
Precip.
0%
28.02
sat
Day
32°F
NE 11 mph
Precip.
0%
Night
32°F
SE 5 mph
Precip.
0%
01.03
sun
Day
34°F
S 11 mph
Precip.
100%
Night
23°F
S 16 mph
Precip.
0%
02.03
mon
Day
23°F
SE 6 mph
Precip.
0%
Night
21°F
S 7 mph
Precip.
0%
03.03
tue
Day
30°F
N 7 mph
Precip.
0%
Night
36°F
NW 6 mph
Precip.
100%
04.03
wed
Day
39°F
NE 19 mph
Precip.
100%
Night
36°F
E 6 mph
Precip.
0%

Sea water temperature in February, °F

Show year:
2026
2025
2024

The average sea water temperature in February of 2026 was 35.7°F. The highest and lowest sea temperatures during the month were 37.0°F and 34.9°F.

Sea water temperature in March, °F

Show year:
2025
2024
2023

The average sea water temperature in March of 2025 was 40.7°F. The highest and lowest sea temperatures during the month were 43.9°F and 38.7°F.

Air temperature in Charlestown, °F

Precipitation total in Charlestown, in.

* Charts above show average data for the last 3 years.

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 36.5 °F
February 37.6 °F
December 41.9 °F
Rainiest months:
October 4 days
November 3 days
April 3 days
Windiest months:
January 13.3 mph
December 13.3 mph
March 13.0 mph

Charlestown on a weather map

Charlestown
+39°F
NE 6 mph
Feels like: +34°F
Precip.: 0%
Places in USA:
Name
°F
+55°F
+72°F
+72°F
+82°F
+77°F
+75°F
+73°F
+68°F
+45°F
+81°F
+59°F
+73°F
+77°F
+77°F
+36°F
24 Hours Forecast
Charlestown
Local time: 16:32
February 26, thursday
1800
37°F
SE
3 mph
2100
36°F
S
8 mph
February 27, friday
0000
34°F
S
9 mph
0300
30°F
S
7 mph
0600
28°F
S
6 mph
0900
30°F
S
2 mph
1200
36°F
NE
6 mph
1500
39°F
NE
8 mph
Units of measurement: °C / °F