Current Sea Water Temperature:
+41.6°F
| Maximum Sea Water Temperature in April: | 49.8°F |
| Minimum Sea Water Temperature in April: | 40.6°F |
| Average water temperature in April: | 44.6°F |
| detailed information | |
Sea Water Temperature for the Last 10 Days:
| April 12 | 41.6°F | April 07 | 43.2°F |
| April 11 | 41.6°F | April 06 | 43.2°F |
| April 10 | 42.2°F | April 05 | 40.8°F |
| April 09 | 42.6°F | April 04 | 41.4°F |
| April 08 | 43.0°F | April 03 | 42.2°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
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
0
12
24
36
48
60
72
84
96
49
57.5
64.6
70.6
73.4
71.8
62.9
52.3
44.6
40.5
39.6
42.7
Sea Water Temperature in August
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
65
68
71
74
77
80
83
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
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
61
64
67
70
73
76
79
82
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
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
61
64
67
70
73
76
79
82
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.
USA Resorts:
NAME
F°
| Boston |  |
+36 |
| Chicago |  |
+54 |
| Hawaii | |
+80 |
| Honolulu | |
+80 |
| Houston |  |
+86 |
| Las Vegas |  |
+96 |
| Los Angeles | |
+76 |
| Miami | |
+86 |
| New York | |
+36 |
| Orlando | |
+80 |
| San Diego | |
+68 |
| San Francisco | |
+60 |
| Sarasota | |
+76 |
| Tampa | |
+80 |
| Washington | |
+52 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Charlestown
Local time: 17:51
12 apr, saturday
| 1800 |  |
40°F | SW 30 mph |
| 2100 | |
38°F | SW 30 mph |
13 apr, sunday
| 0000 | |
38°F | SW 29 mph |
| 0300 | |
38°F | SW 25 mph |
| 0600 | |
38°F | S 24 mph |
| 0900 | |
38°F | S 21 mph |
| 1200 | |
38°F | S 17 mph |
| 1500 |  |
40°F | S 11 mph |