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 06:16 AM and sunset is at 05:36 PM.

Days 1–3 Weather Summary

A light covering of new snow, mostly falling on Tue afternoon. Icy conditions (max 7°C on Wed afternoon, min -5°C on Mon night). Wind will be generally light.

Days 4–6 Weather Summary

A moderate fall of snow, heaviest on Thu night. Icy conditions (max 11°C on Sun morning, min -1°C on Fri morning). Wind will be generally light.

Days 7–9 Weather Summary

Light rain (total 3mm), mostly falling on Wed morning. Warm (max 20°C on Wed afternoon, min 3°C on Mon night). Wind will be generally light.

Days 10–12 Weather Summary

Light rain (total 7mm), mostly falling on Wed night. Freeze-thaw conditions (max 19°C on Wed night, min 0°C on Fri morning). Wind will be generally light.

Tuesday
3
Wednesday
4
Thursday
5
Friday
6
Saturday
7
Sunday
8
Monday
9
Tuesday
10
Wednesday
11
Thursday
12
Friday
13
Saturday
14
Sunday
15
Monday
16
Tuesday
17
Wed
18
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
AM
PM
night
AM
PM
night
AM
PM
night
AM
Wave Height Map
High Tide
11:00AM3.30m
11:28PM3.13m
11:45AM3.26m
00:09AM3.17m
12:28PM3.18m
00:47AM3.16m
1:10PM3.05m
1:26AM3.11m
1:52PM2.90m
2:06AM3.03m
2:36PM2.73m
3:49AM2.92m
3:23PM2.57m
3:36AM2.81m
4:15PM2.43m
4:28AM2.71m
5:12PM2.32m
5:25AM2.65m
6:12PM2.29m
6:25AM2.65m
7:12PM2.33m
7:23AM2.72m
8:07PM2.44m
8:17AM2.83m
8:55PM2.60m
9:05AM2.95m
9:38PM2.78m
9:50AM3.08m
Low Tide
5:15PM-0.22m
5:31AM-0.12m
5:56PM-0.18m
6:15AM-0.13m
6:36PM-0.09m
6:58AM-0.09m
7:15PM0.03m
7:41AM-0.01m
7:55PM0.18m
8:25AM0.11m
8:37PM0.34m
9:12AM0.25m
9:23PM0.49m
10:02AM0.38m
10:12PM0.63m
10:58AM0.49m
11:07PM0.72m
11:57AM0.54m
00:06AM0.74m
12:56PM0.51m
1:05AM0.69m
1:52PM0.42m
2:00AM0.57m
2:41PM0.29m
2:51AM0.40m
3:24PM0.14m
3:38AM0.21m
4:06PM-0.00m
Wave
height (m) 
direction
period (s) 
cloud
light snow
snow showers
cloud
part cloud
cloud
light snow
light snow
mod snow
light snow
cloud
cloud
cloud
cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
part cloud
part cloud
light rain
light rain
part cloud
light rain
cloud
clear
part cloud
cloud
light rain
rain showers
part cloud
clear
clear
part cloud
light snow
light snow
rain showers
part cloud
part cloud
clear
part cloud
part cloud
cloud
cloudy
light snow
snow shwrs
cloudy
some clouds
cloudy
light snow
light snow
mod snow
light snow
cloudy
cloudy
cloudy
cloudy
some clouds
some clouds
some clouds
some clouds
clear
clear
clear
some clouds
some clouds
light rain
light rain
some clouds
light rain
cloudy
clear
some clouds
cloudy
light rain
rain shwrs
some clouds
clear
clear
some clouds
light snow
light snow
rain shwrs
some clouds
some clouds
clear
some clouds
some clouds
cloudy
 km/h
10
SSW
5
SE
10
WSW
10
WNW
5
NNW
5
SSW
5
NNE
5
NE
15
NE
20
NE
15
ENE
10
ESE
10
SSW
15
SSW
20
SW
15
WNW
5
W
10
SSW
15
WSW
20
WNW
5
WNW
10
SE
20
S
20
SSW
20
SW
15
SW
20
SW
10
NNE
10
NE
15
E
20
ESE
10
SE
25
SW
15
W
25
NW
10
NNW
10
SE
15
S
10
SE
5
NW
15
W
15
NW
10
NNW
5
S
10
W
15
W
 mm 
1
2
3
2
2
1
1
max°C
-2
0
3
6
7
4
0
0
1
0
-1
0
2
6
10
11
11
8
16
15
6
10
10
13
17
20
19
9
9
4
0
7
13
14
12
0
4
5
2
4
8
6
4
5
2
3
Moonrise
6:04
7:12
8:18
9:24
10:30
12:35
1:38
2:37
3:30
4:14
4:51
5:22
5:48
6:11
6:33
Moonset
6:17
6:38
6:57
7:17
7:40
9:05
9:36
10:13
10:58
11:52
12:54
2:01
3:10
4:20
5:32
Sunrise
6:16
6:13
6:11
6:11
6:09
7:07
6:05
6:03
6:01
6:01
5:58
5:56
5:56
5:54
5:52
5:50
Sunset
5:36
5:37
5:37
5:39
5:40
6:42
5:43
5:44
5:45
5:46
5:47
5:49
5:50
5:51
5:52
Today's sea temperature in Charlestown, Charles River is
1.4° C
(Statistics for 03 Mar 1981-2005 – mean: 3.3 max: 4.7 min: 2.0°C)
Issued (local time): 12 am Tuesday 03 Mar 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest