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 04:15 PM.

Days 1–4 Weather Summary

Mostly dry. Icy conditions (max 3°C on Thu morning, min -11°C on Thu night). Wind will be generally light.

Days 5–7 Weather Summary

A dusting of snow turning to light rain (total 3mm) on Mon afternoon. Icy conditions (max 7°C on Mon afternoon, min -6°C on Sat night). Wind will be generally light.

Days 8–10 Weather Summary

Mostly dry. Freeze-thaw conditions (max 1°C on Thu morning, min -5°C on Tue night). Wind will be generally light.

Days 11–13 Weather Summary

A dusting of new snow. Freeze-thaw conditions (max 5°C on Mon morning, min -11°C on Sat night). Wind will be generally light.

Wed
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Thursday
1
Friday
2
Saturday
3
Sunday
4
Mon
5
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
AM
Wave Height Map
High Tide
1:53PM3.00m
2:33AM2.72m
2:39PM2.95m
3:18AM2.79m
3:29PM2.90m
4:05AM2.87m
4:23PM2.84m
4:56AM2.98m
5:21PM2.80m
5:50AM3.10m
6:22PM2.78m
6:45AM3.23m
7:23PM2.80m
7:41AM3.36m
8:22PM2.82m
8:36AM3.45m
9:22PM2.88m
9:34AM3.54m
10:19PM2.95m
10:29AM3.59m
11:14PM3.01m
11:24AM3.59m
00:07AM3.05m
12:17PM3.53m
Low Tide
8:18PM0.07m
8:32AM0.40m
9:03PM0.09m
9:23AM0.37m
9:50PM0.11m
10:17AM0.31m
10:41PM0.14m
11:15AM0.22m
11:34PM0.16m
12:15PM0.10m
00:30AM0.16m
1:15PM-0.05m
1:27AM0.13m
2:15PM-0.20m
2:23AM0.11m
3:11PM-0.30m
3:20AM0.04m
4:07PM-0.41m
4:15AM-0.02m
5:01PM-0.46m
5:09AM-0.06m
5:52PM-0.47m
6:02AM-0.07m
Wave
height (m) 
direction
period (s) 
part cloud
part cloud
part cloud
part cloud
clear
part cloud
part cloud
cloud
cloud
part cloud
clear
clear
part cloud
light snow
light rain
rain showers
clear
part cloud
clear
clear
part cloud
clear
part cloud
cloud
cloud
cloud
cloud
part cloud
part cloud
clear
clear
clear
part cloud
cloud
light snow
part cloud
some clouds
some clouds
some clouds
some clouds
clear
some clouds
some clouds
cloudy
cloudy
some clouds
clear
clear
some clouds
light snow
light rain
rain shwrs
clear
some clouds
clear
clear
some clouds
clear
some clouds
cloudy
cloudy
cloudy
cloudy
some clouds
some clouds
clear
clear
clear
some clouds
cloudy
light snow
some clouds
 km/h
15
NNE
5
W
15
W
20
NW
25
NNW
10
NNW
5
N
5
NNE
15
NNE
10
NNW
10
NW
10
NW
5
WSW
10
SSW
10
S
25
WSW
25
W
30
WSW
25
W
20
W
20
W
15
WSW
20
SW
15
SW
5
SW
10
SW
15
NW
15
NW
15
NW
15
WNW
15
NW
10
NW
5
W
5
SSW
15
SSW
15
SW
 mm 
1
2
max°C
-1
-1
3
2
-7
-7
-6
-6
-5
-4
-5
2
2
2
5
7
2
0
-1
-3
-1
0
-1
1
1
0
0
-2
-4
-8
-7
-10
-6
-4
2
5
Moonrise
10:38
10:59
11:19
11:41
12:07
12:39
1:19
2:12
3:19
4:36
5:56
Moonset
8:53
10:02
11:11
12:22
1:37
2:55
4:16
5:36
6:47
7:46
8:30
9:04
Sunrise
7:11
7:11
7:11
7:11
7:11
7:13
7:13
7:13
7:13
7:13
7:13
7:13
Sunset
4:15
4:15
4:16
4:17
4:17
4:19
4:20
4:21
4:22
4:22
4:23
4:24
Today's sea temperature in Charlestown, Charles River is
5.6° C
(Statistics for 24 Dec 1981-2005 – mean: 6.9 max: 8.5 min: 5.7°C)
Issued (local time): 6 pm Wednesday 24 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest