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 06:50 AM and sunset is at 06:52 PM.

Days 1–3 Weather Summary

Mostly dry. Cool air temperatures (max 12°C on Thu afternoon, min 3°C on Tue morning). Wind will be generally light.

Days 4–6 Weather Summary

Light rain (total 8mm), mostly falling on Fri morning. Icy conditions (max 13°C on Sat afternoon, min -2°C on Sun night). Winds decreasing (fresh winds from the NW on Fri afternoon, light winds from the SW by Sun night).

Days 7–9 Weather Summary

A light covering of new snow, mostly falling on Mon afternoon. Freeze-thaw conditions (max 9°C on Wed afternoon, min -2°C on Mon morning). Wind will be generally light.

Days 10–12 Weather Summary

Light rain (total 3mm), mostly falling on Thu morning. Freeze-thaw conditions (max 5°C on Fri afternoon, min -3°C on Sat morning). Wind will be generally light.

Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
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
night
Wave Height Map
High Tide
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
9:53PM9.45ft
10:10AM10.53ft
10:40PM10.27ft
11:01AM10.99ft
11:26PM11.02ft
11:50AM11.29ft
00:12AM11.61ft
Low Tide
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
3:58AM0.36ft
4:29PM-0.46ft
4:49AM-0.46ft
5:16PM-0.92ft
5:39AM-1.21ft
6:02PM-1.21ft
Wave
height (ft) 
direction
period (s) 
cloud
part cloud
clear
clear
clear
part cloud
cloud
part cloud
cloud
mod rain
light rain
part cloud
clear
part cloud
part cloud
part cloud
part cloud
clear
cloud
light snow
light snow
cloud
part cloud
part cloud
cloud
cloud
cloud
light rain
light rain
part cloud
clear
cloud
clear
clear
clear
part cloud
cloudy
some clouds
clear
clear
clear
some clouds
cloudy
some clouds
cloudy
mod rain
light rain
some clouds
clear
some clouds
some clouds
some clouds
some clouds
clear
cloudy
light snow
light snow
cloudy
some clouds
some clouds
cloudy
cloudy
cloudy
light rain
light rain
some clouds
clear
cloudy
clear
clear
clear
some clouds
 mph
10
NNE
5
ENE
5
NNE
5
ENE
10
ESE
5
ESE
5
SSE
10
SSE
5
E
5
N
20
NW
15
WNW
10
WNW
10
WSW
10
W
10
WNW
15
NW
5
NNW
5
S
5
ESE
5
W
10
SW
5
WSW
5
WNW
5
NW
5
ENE
5
N
5
NW
10
WNW
10
W
15
WNW
10
WNW
10
WNW
10
NW
10
NW
5
N
 in 
0.3
0.04
0.04
0.08
max°F
41
48
43
43
46
37
46
54
46
46
41
37
48
55
48
43
45
34
34
32
36
39
46
45
45
48
43
36
39
36
32
41
36
32
39
37
Moonrise
11:37
12:42
1:44
2:42
3:33
4:15
4:50
5:19
5:44
6:08
6:31
Moonset
8:24
8:51
9:24
10:07
11:00
12:03
1:13
2:29
3:46
5:04
6:23
7:43
Sunrise
6:50
6:50
6:48
6:46
6:43
6:43
6:41
6:39
6:37
6:35
6:33
6:31
Sunset
6:52
6:53
6:54
6:57
6:58
6:59
7:00
7:00
7:01
7:02
7:04
7:06
Today's sea temperature in Charlestown, Charles River is 39 °F (Statistics for 18 Mar 1981-2005 – mean: 38 max: 41 min: 36°F)
Issued (local time): 1 am Tuesday 18 Mar 2025
Forecast update inUpdates in 2 hr 48 min 58 sUpdate imminent
Nearest