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 07:43 PM.

Days 1–4 Weather Summary

Light rain (total 3mm), mostly falling on Sat morning. Cool air temperatures (max 16°C on Fri afternoon, min 7°C on Sat night). Wind will be generally light.

Days 5–7 Weather Summary

Light rain (total 5mm), mostly falling on Thu morning. Warm air temperatures (max 26°C on Tue afternoon, min 11°C on Mon night). Wind will be generally light.

Days 8–10 Weather Summary

Heavy rain (total 29mm), heaviest during Thu afternoon. Very mild (max 16°C on Sat afternoon, min 6°C on Fri night). Winds decreasing (fresh winds from the W on Fri morning, calm by Sat night).

Days 11–13 Weather Summary

Moderate rain (total 16mm), heaviest on Sun night. Warm (max 20°C on Wed afternoon, min 11°C on Sun afternoon). Wind will be generally light.

Fri
1
Saturday
2
Sunday
3
Monday
4
Tuesday
5
Wednesday
6
Thursday
7
Friday
8
Saturday
9
Sunday
10
Monday
11
Tuesday
12
Wednesday
13
Thursday
14
Friday
15
Saturday
16
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
PM
night
Wave Height Map
High Tide
12:04PM2.89m
00:10AM3.17m
12:43PM2.85m
00:46AM3.15m
1:22PM2.80m
1:24AM3.11m
2:01PM2.73m
2:03AM3.05m
2:42PM2.65m
2:45AM2.98m
3:26PM2.58m
3:29AM2.90m
4:13PM2.53m
4:17AM2.83m
5:02PM2.51m
5:09AM2.78m
5:53PM2.54m
6:03AM2.75m
6:44PM2.62m
6:58AM2.76m
7:35PM2.76m
7:54AM2.82m
8:24PM2.94m
8:48AM2.90m
9:12PM3.15m
9:41AM2.99m
9:59PM3.35m
10:34AM3.07m
Low Tide
5:58PM0.27m
6:30AM-0.01m
6:36PM0.31m
7:09AM0.01m
7:15PM0.37m
7:48AM0.06m
7:54PM0.44m
8:29AM0.14m
8:36PM0.51m
9:12AM0.22m
9:20PM0.58m
9:57AM0.30m
10:07PM0.64m
10:45AM0.37m
10:58PM0.67m
11:35AM0.40m
11:52PM0.66m
12:27PM0.39m
00:49AM0.58m
1:18PM0.34m
1:45AM0.44m
2:10PM0.27m
2:40AM0.24m
3:00PM0.18m
3:33AM0.02m
3:49PM0.09m
4:24AM-0.20m
4:38PM0.00m
Wave
height (m) 
direction
period (s) 
clear
part cloud
light rain
cloud
cloud
rain showers
cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
light rain
light rain
light rain
heavy rain
light rain
cloud
part cloud
clear
part cloud
part cloud
part cloud
light rain
light rain
mod rain
light rain
light rain
part cloud
part cloud
clear
part cloud
clear
part cloud
part cloud
clear
clear
part cloud
part cloud
part cloud
rain showers
clear
clear
clear
clear
some clouds
light rain
cloudy
cloudy
rain shwrs
cloudy
clear
some clouds
some clouds
some clouds
some clouds
some clouds
some clouds
some clouds
light rain
light rain
light rain
heavy rain
light rain
cloudy
some clouds
clear
some clouds
some clouds
some clouds
light rain
light rain
mod rain
light rain
light rain
some clouds
some clouds
clear
some clouds
clear
some clouds
some clouds
clear
clear
some clouds
some clouds
some clouds
rain shwrs
clear
clear
clear
 km/h
15
WNW
10
SSW
15
SSW
10
NW
5
N
15
NNW
20
NW
10
WSW
25
WSW
15
WSW
15
SSW
20
SW
25
SW
20
SSW
30
SSW
25
SSW
15
SSW
5
SSW
15
NE
25
W
30
W
25
W
20
WSW
15
W
15
W
10
SSW
15
S
10
SE
5
SE
15
SSW
10
SW
15
NW
5
NE
15
SE
10
WSW
20
W
20
WNW
10
WNW
15
WNW
15
NW
5
ESE
15
SSE
20
SSW
25
WNW
20
NW
20
W
20
W
 mm 
2
1
1
1
3
24
4
1
2
9
1
4
1
max°C
16
14
9
13
9
9
14
11
16
19
16
21
26
18
21
21
15
14
13
10
10
14
10
13
16
14
10
13
12
15
16
17
18
19
16
18
20
16
16
20
18
19
26
22
15
19
15
Moonrise
8:08
9:13
10:16
11:13
12:03
12:45
1:20
1:49
2:13
2:35
2:56
3:18
3:41
4:08
4:42
Moonset
5:37
6:09
6:49
7:36
8:32
9:33
10:38
11:44
12:51
2:00
3:10
4:22
5:40
7:01
8:24
Sunrise
5:37
5:37
5:35
5:33
5:33
5:31
5:31
5:28
5:28
5:26
5:26
5:24
5:24
5:22
5:22
Sunset
7:43
7:44
7:45
7:45
7:46
7:47
7:49
7:51
7:52
7:52
7:53
7:54
7:55
7:57
7:58
7:59
Today's sea temperature in Charlestown, Charles River is
9.2° C
(Statistics for 01 May 1981-2005 – mean: 7.4 max: 8.8 min: 5.8°C)
Issued (local time): 1 pm Friday 01 May 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest