Charlestown, Charles River Sea Conditions and Tide Table

Charlestown, Charles River Sea Conditions table showing wave height, swell direction and period.

High and low tide times are also provided on the table along with the moon phase and forecast weather. Sunrise today is at — and sunset is at 06:47 PM.

Days 1–4 Weather Summary

Heavy rain (total 50mm), heaviest during Mon morning. Cool air temperatures (max 17°C on Sun afternoon, min 4°C on Sat morning). Winds decreasing (fresh winds from the S on Sun night, calm by Mon afternoon).

Days 5–7 Weather Summary

Light rain (total 5mm), mostly falling on Mon night. Cool air temperatures (max 13°C on Thu afternoon, min 5°C on Tue morning). Wind will be generally light.

Days 8–10 Weather Summary

Heavy rain (total 20mm), heaviest during Thu night. Later becoming colder with a dusting of snow on Thu night. Freeze-thaw conditions (max 11°C on Thu night, min -3°C on Fri night). Winds increasing (light winds from the WSW on Thu night, fresh winds from the W by Fri afternoon).

Days 11–13 Weather Summary

Light rain (total 3mm), mostly falling on Tue night. Freeze-thaw conditions (max 16°C on Wed afternoon, min -2°C on Mon morning). Wind will be generally light.

Saturday
15
Sunday
16
Monday
17
Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wed
26
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
Wave Height Map
High Tide
00:43AM9.78ft
12:59PM9.91ft
1:16AM9.88ft
1:36PM9.71ft
1:50AM9.88ft
2:14PM9.42ft
2:25AM9.78ft
2:53PM9.02ft
3:03AM9.58ft
3:35PM8.6ft
3:44AM9.35ft
4:21PM8.2ft
4:30AM9.09ft
5:12PM7.84ft
5:22AM8.92ft
6:09PM7.68ft
6:20AM8.89ft
7:09PM7.74ft
7:20AM9.09ft
8:08PM8.1ft
8:20AM9.48ft
9:03PM8.69ft
9:16AM9.97ft
Low Tide
6:31PM0.16ft
6:47AM0.2ft
7:06PM0.3ft
7:25AM0.16ft
7:41PM0.49ft
8:04AM0.23ft
8:17PM0.79ft
8:43AM0.43ft
8:55PM1.15ft
9:25AM0.72ft
9:35PM1.54ft
10:10AM1.05ft
10:20PM1.9ft
11:00AM1.35ft
11:10PM2.2ft
11:55AM1.54ft
00:06AM2.33ft
12:54PM1.48ft
1:06AM2.2ft
1:53PM1.21ft
2:06AM1.8ft
2:49PM0.72ft
3:04AM1.15ft
3:41PM0.13ft
Wave
height (ft) 
direction
period (s) 
part cloud
part cloud
clear
part cloud
cloud
cloud
mod rain
heavy rain
heavy rain
light rain
cloud
part cloud
clear
clear
part cloud
cloud
cloud
cloud
light snow
light snow
cloud
part cloud
part cloud
part cloud
clear
part cloud
part cloud
clear
clear
part cloud
part cloud
part cloud
part cloud
light rain
part cloud
part cloud
some clouds
some clouds
clear
some clouds
cloudy
cloudy
mod rain
heavy rain
heavy rain
light rain
cloudy
some clouds
clear
clear
some clouds
cloudy
cloudy
cloudy
light snow
light snow
cloudy
some clouds
some clouds
some clouds
clear
some clouds
some clouds
clear
clear
some clouds
some clouds
some clouds
some clouds
light rain
some clouds
some clouds
 mph
5
SSW
5
S
10
S
5
SSW
10
SSW
15
SSW
20
SSW
5
S
10
NW
10
NNW
5
N
5
E
0
NE
5
ENE
5
ESE
5
SSE
5
SSE
10
SE
15
WNW
20
W
20
W
20
W
20
WSW
15
W
10
WNW
10
WNW
10
WNW
10
W
10
NW
5
SW
5
SSW
10
S
10
S
10
SSW
5
WSW
5
S
 in 
0.2
0.9
0.8
0.2
0.8
0.1
max°F
43
46
57
50
57
63
59
57
54
50
45
50
45
46
50
48
50
55
52
34
37
30
34
39
34
32
39
37
36
50
45
45
50
48
54
61
Moonrise
7:25
8:27
9:29
10:32
11:37
12:42
1:44
2:42
3:33
4:15
4:50
5:19
Moonset
7:06
7:23
7:41
8:01
8:24
8:51
9:24
10:07
11:00
12:03
1:13
2:29
3:46
Sunrise
6:56
6:54
6:52
6:50
6:50
6:48
6:46
6:43
6:43
6:41
6:39
6:37
Sunset
6:47
6:50
6:51
6:52
6:52
6:53
6:54
6:57
6:58
6:59
7:00
7:00
7:01
Today's sea temperature in Charlestown, Charles River is 38 °F (Statistics for 14 Mar 1981-2005 – mean: 38 max: 41 min: 35°F)
Issued (local time): 7 pm Friday 14 Mar 2025
Forecast update inUpdates in 2 hr 43 min 48 sUpdate imminent
Nearest