Boston Sea Conditions and Tide Table

Boston 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 06:37 AM and sunset is at 05:19 PM.

Days 1–3 Weather Summary

A dusting of new snow. Air temperatures will be below freezing (max -3°C on Sun night, min -14°C on Tue night). Winds decreasing (fresh winds from the W on Mon morning, light winds from the WNW by Wed afternoon).

Days 4–6 Weather Summary

A dusting of new snow. Air temperatures will be below freezing (max -1°C on Sat afternoon, min -11°C on Wed night). Wind will be generally light.

Days 7–9 Weather Summary

Heavy rain (total 25mm), heaviest during Mon night. Freeze-thaw conditions (max 6°C on Mon night, min -5°C on Sat night). Winds increasing (calm on Mon morning, fresh winds from the WSW by Tue afternoon).

Days 10–12 Weather Summary

Some drizzle, heaviest during Thu night. Freeze-thaw conditions (max 13°C on Thu night, min -4°C on Fri night). Winds increasing (light winds from the SW on Wed night, fresh winds from the W by Thu night).

Monday
17
Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Fri
28
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
2:23PM2.78m
2:42AM2.85m
3:08PM2.63m
3:25AM2.78m
3:56PM2.48m
4:12AM2.72m
4:49PM2.36m
5:04AM2.67m
5:47PM2.29m
6:00AM2.68m
6:47PM2.29m
6:59AM2.74m
7:45PM2.37m
7:55AM2.86m
8:39PM2.51m
8:48AM3.02m
9:29PM2.69m
9:38AM3.19m
10:14PM2.90m
10:26AM3.34m
10:58PM3.12m
11:13AM3.45m
Low Tide
8:13AM0.20m
8:29PM0.27m
8:57AM0.29m
9:11PM0.41m
9:45AM0.38m
9:56PM0.54m
10:37AM0.46m
10:47PM0.64m
11:33AM0.51m
11:42PM0.69m
12:32PM0.48m
00:40AM0.68m
1:31PM0.39m
1:38AM0.59m
2:25PM0.24m
2:32AM0.43m
3:15PM0.06m
3:24AM0.23m
4:01PM-0.13m
4:13AM0.02m
4:46PM-0.29m
5:01AM-0.18m
5:30PM-0.40m
Wave
height (m) 
direction
period (s) 
part cloud
part cloud
part cloud
part cloud
cloud
clear
part cloud
cloud
part cloud
cloud
light snow
snow showers
clear
part cloud
clear
clear
clear
part cloud
clear
clear
part cloud
cloud
light rain
heavy rain
light rain
clear
part cloud
clear
part cloud
part cloud
cloud
cloud
rain showers
clear
clear
some clouds
some clouds
some clouds
some clouds
cloudy
clear
some clouds
cloudy
some clouds
cloudy
light snow
snow shwrs
clear
some clouds
clear
clear
clear
some clouds
clear
clear
some clouds
cloudy
light rain
heavy rain
light rain
clear
some clouds
clear
some clouds
some clouds
cloudy
cloudy
rain shwrs
clear
clear
 km/h
35
W
35
W
30
W
30
W
30
W
25
WNW
20
WNW
15
WNW
5
WNW
15
NNW
10
NNW
15
NW
25
NW
20
NW
15
WNW
10
WNW
10
W
15
WSW
15
W
10
WSW
10
SSW
10
SSW
10
E
20
ENE
15
WSW
30
WSW
20
WSW
20
WNW
20
W
15
WSW
10
S
30
SSW
35
SW
25
WNW
20
WNW
 mm 
2.0
22
1.0
1.0
max°C
-4
-5
-8
-7
-7
-11
-6
-4
-8
-4
-3
-4
-2
-2
-8
-2
-1
-3
0
1
1
4
4
6
4
4
2
5
4
1
7
10
13
1
0
Moonrise
10:40
11:44
12:49
1:54
2:56
3:53
4:41
5:21
5:54
6:21
6:45
Moonset
8:36
8:57
9:21
9:51
10:28
11:16
12:15
1:23
2:38
3:57
5:15
6:34
Sunrise
6:37
6:35
6:33
6:33
6:31
6:30
6:28
6:26
6:24
6:24
6:22
6:20
Sunset
5:19
5:20
5:21
5:22
5:23
5:24
5:25
5:27
5:29
5:30
5:30
5:31
Today's sea temperature in Boston is 2.7 °C (Statistics for 17 Feb 1981-2005 – mean: 3.5 max: 4.7 min: 2.0°C)
Issued (local time): 12 am Monday 17 Feb 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest