Please click on any column to get detailed information about Charlestown weather in that particular month. You will get daily weather information for that month for the last several years.
Day & Night air temperature, °F
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
13
26
39
52
65
78
91
104
42.5
51.6
61.3
70.0
76.4
77.6
70.3
60.6
51.3
44.1
37.6
37.1
38.7
45.3
54.9
62.5
68.4
69.1
61.6
51.8
44.1
37.9
32.6
32.9
Day temperature | Night temperature |
The warmest month in Charlestown is july. The average daily temp is 77.6°F. The average nightly temp is 69.1°F.
Sea water temperature, °F
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
12
24
36
48
60
72
84
96
49.1
56.8
63.1
68.6
71.1
69.6
61.6
52.1
45.1
41.5
40.6
43.4
The warmest sea temperature usually observed in August. Average daily sea water temperature during this month is 71.1°F.
Precipitation total, in.
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
0.3
0.5
0.8
1.1
1.3
1.6
1.8
1.4
1.1
1.5
1.3
1.2
1.2
1.1
1.4
1.5
1.3
1.1
1.3
Number of rainy days
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
5
3
3
4
2
3
2
3
3
3
2
3
3
This chart shows averages for the last three years. It shows medium and heavy rains only, it doesn't show light rains.
Wind speed, mph
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
2
4
6
8
10
12
14
16
12.4
11.9
10.1
9.7
8.9
8.6
9.3
10.2
11.4
13
12.2
12.9
Sunny, partly cloudy and cloudy days
1
2
3
4
5
6
7
8
9
10
11
12
0
5
10
15
20
25
30
35
12
6
11
7
8
9
8
9
12
11
11
11
7
8
8
9
12
12
10
11
10
11
9
11
12
16
13
14
11
11
11
11
8
10
8
10
Cloudy days | Partly cloudy days | Sunny days |
Average sunny hours
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
1
2
3
4
5
6
7
8
9
10
4.9
6.6
6.4
7.6
8.2
8.5
8.7
8.3
6.7
6.3
5.3
4.9
Sunny hours are calculated based on the average daily number of hours while sunlight can reach the ground. It depends on day length and cloudiness during the day.
* Charts above show average data for the last 3 years.
sea water
temperature
temperature
Charlestown |
14 days
forecast
forecast
Charlestown |
current
weather
weather
Charlestown |
7 days
forecast
forecast
Charlestown |
Best time for vacation in Charlestown
Charlestown on a weather map
Leaflet | Tiles © Esri
Places in USA:
Name
°F
24 Hours Forecast
Charlestown
Local time: 22:46
April 15, tuesday
0000

46°F
NE
13 mph
13 mph
0300

45°F
NE
14 mph
14 mph
0600

45°F
N
11 mph
11 mph
0900

45°F
NE
11 mph
11 mph
1200

45°F
NE
16 mph
16 mph
1500

46°F
NE
19 mph
19 mph
1800

52°F
NE
19 mph
19 mph
2100

50°F
E
20 mph
20 mph