Back Bay Sea Conditions and Tide Table

Back Bay 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 08:03 AM and sunset is at 04:50 PM.

Days 1–3 Weather Summary

A dusting of new snow. Air temperatures will be below freezing (max -3°C on Thu afternoon, min -12°C on Fri night). Winds increasing (calm on Thu morning, strong winds from the NNW by Thu night).

Days 4–6 Weather Summary

Light rain (total 7mm), mostly falling on Mon night. Icy conditions (max 7°C on Mon night, min -8°C on Tue night). Winds increasing (light winds from the SW on Mon morning, strong winds from the W by Mon night).

Days 7–9 Weather Summary

A dusting of snow turning to light rain (total 6mm) on Thu night. Freeze-thaw conditions (max 2°C on Thu morning, min -16°C on Fri night). Winds increasing (light winds from the SW on Thu afternoon, fresh winds from the NW by Fri afternoon).

Days 10–12 Weather Summary

A dusting of snow turning to light rain (total 6mm) on Mon morning. Freeze-thaw conditions (max 4°C on Mon morning, min -16°C on Sat morning). Mainly fresh winds.

Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Thursday
1
Friday
2
Saturday
3
Sunday
4
Monday
5
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
3:08PM6.20m
3:39AM6.07m
3:57PM6.14m
4:28AM6.14m
4:51PM6.10m
5:22AM6.24m
5:49PM6.10m
6:20AM6.39m
6:51PM6.16m
7:19AM6.59m
7:53PM6.28m
8:20AM6.82m
8:53PM6.41m
9:18AM7.01m
9:54PM6.62m
10:16AM7.23m
10:51PM6.81m
11:12AM7.38m
11:47PM6.95m
12:07PM7.43m
00:40AM7.01m
1:00PM7.37m
1:32AM6.98m
Low Tide
9:00AM1.69m
9:26PM1.43m
9:47AM1.68m
10:12PM1.47m
10:39AM1.64m
11:04PM1.49m
11:37AM1.56m
00:01AM1.48m
12:39PM1.41m
1:01AM1.42m
1:42PM1.21m
2:03AM1.30m
2:45PM0.95m
3:04AM1.16m
3:45PM0.73m
4:04AM0.95m
4:42PM0.49m
5:01AM0.76m
5:37PM0.33m
5:56AM0.64m
6:30PM0.27m
6:49AM0.62m
7:20PM0.33m
Wave
height (m) 
direction
period (s) 
0.1
S
3
0.4
NW
2
1.2
NW
4
0.9
NNW
4
0.6
NNW
4
0.4
NNW
3
0.4
N
3
0.6
NNW
3
1.1
NW
4
1.1
NW
4
1
NW
4
0.4
NW
3
0.2
S
2
1.2
SSE
5
0.9
WSW
4
1.3
W
5
1.3
WSW
5
1
W
4
0.5
W
3
0.4
W
3
0.4
WSW
3
1.1
SSW
4
0.5
SSW
5
0.8
SSW
5
0.7
WSW
4
1
NW
4
0.7
NW
4
0.2
WSW
3
0.6
WNW
3
0.6
NW
3
0.5
NW
3
0.1
W
2
0.5
S
3
1.4
S
5
0.5
S
7
0.4
WSW
4
light snow
snow showers
part cloud
clear
part cloud
part cloud
part cloud
clear
part cloud
clear
clear
part cloud
cloud
light rain
light rain
part cloud
part cloud
part cloud
clear
part cloud
part cloud
cloud
light snow
light snow
light snow
part cloud
clear
part cloud
cloud
part cloud
part cloud
clear
light snow
mod rain
part cloud
clear
light snow
snow shwrs
some clouds
clear
some clouds
some clouds
some clouds
clear
some clouds
clear
clear
some clouds
cloudy
light rain
light rain
some clouds
some clouds
some clouds
clear
some clouds
some clouds
cloudy
light snow
light snow
light snow
some clouds
clear
some clouds
cloudy
some clouds
some clouds
clear
light snow
mod rain
some clouds
clear
 km/h
0
WSW
25
NNW
45
NNW
35
NNW
25
NNW
20
NNW
20
N
30
NNW
40
NW
40
NW
35
NW
15
NW
20
S
35
SE
30
W
45
WSW
40
WSW
35
W
25
W
20
W
20
SW
35
SW
15
SW
25
SW
35
NW
35
NW
30
NW
15
WNW
30
NW
25
NW
20
NW
10
WNW
25
SW
35
SW
15
W
20
NW
 mm 
2
5
6
6
max°C
-5
-3
-4
-11
-9
-11
-10
-6
-7
-3
0
-2
1
5
7
-6
-6
-7
-8
-5
-2
2
2
2
2
-6
-10
-15
-12
-13
-15
-11
0
4
1
0
Moonrise
11:25
11:43
12:01
12:20
12:44
1:12
1:51
2:42
3:49
5:07
6:29
7:50
Moonset
10:42
11:54
1:07
2:24
3:46
5:09
6:31
7:43
8:40
9:23
9:55
Sunrise
8:03
8:03
8:04
8:04
8:04
8:04
8:04
8:04
8:04
8:04
8:04
8:04
Sunset
4:50
4:51
4:52
4:52
4:52
4:53
4:54
4:55
4:57
4:58
4:59
5:00
Today's sea temperature in Back Bay is
6.8° C
(Statistics for 25 Dec 1981-2005 – mean: 5.9 max: 7.1 min: 4.6°C)
Issued (local time): 1 am Thursday 25 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest