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 07:52 AM and sunset is at 04:45 PM.

Days 1–3 Weather Summary

A light covering of new snow, mostly falling on Sun night. Becoming milder with light rain (total 3mm) on Tue night. Icy conditions (max 4°C on Tue night, min -12°C on Mon night). Winds increasing (light winds from the N on Sun night, near gales from the S by Tue night).

Days 4–6 Weather Summary

A dusting of snow giving way to moderate rain (total 10mm) heaviest on Wed night. Icy conditions (max 8°C on Wed night, min -7°C on Fri night). Winds decreasing (strong winds from the SSW on Wed night, calm by Fri morning).

Days 7–9 Weather Summary

Mostly dry. Temperatures will be below freezing (max -3°C on Sat afternoon, min -8°C on Sun morning). Winds decreasing (fresh winds from the NW on Sun night, light winds from the NNW by Mon night).

Days 10–12 Weather Summary

Some drizzle, heaviest during Thu night. Freeze-thaw conditions (max 5°C on Thu night, min -8°C on Tue morning). Mainly strong winds.

Sunday
7
Monday
8
Tuesday
9
Wednesday
10
Thursday
11
Friday
12
Saturday
13
Sunday
14
Monday
15
Tuesday
16
Wednesday
17
Thursday
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
Wave Height Map
High Tide
1:12PM7.43m
1:47AM6.91m
2:08PM7.18m
2:44AM6.71m
3:05PM6.87m
3:42AM6.50m
4:04PM6.54m
4:41AM6.30m
5:05PM6.24m
5:40AM6.15m
6:05PM6.00m
6:37AM6.06m
7:03PM5.84m
7:31AM6.02m
7:58PM5.76m
8:21AM6.04m
8:48PM5.75m
9:07AM6.08m
9:34PM5.78m
9:49AM6.15m
10:17PM5.84m
10:30AM6.22m
10:58PM5.90m
Low Tide
7:01AM0.61m
7:35PM0.30m
7:55AM0.79m
8:29PM0.55m
8:51AM1.03m
9:25PM0.84m
9:49AM1.29m
10:22PM1.15m
10:50AM1.53m
11:20PM1.43m
11:52AM1.70m
00:19AM1.65m
12:53PM1.79m
1:16AM1.79m
1:50PM1.79m
2:09AM1.86m
2:42PM1.74m
2:57AM1.87m
3:30PM1.66m
3:42AM1.85m
4:12PM1.56m
4:24AM1.80m
4:53PM1.47m
Wave
height (m) 
direction
period (s) 
0.6
NW
3
0.2
WSW
4
0.2
ESE
3
1
NNW
4
0.8
NW
4
0.7
WNW
4
0.3
WNW
2
0.3
WSW
2
1.2
S
5
0.7
S
7
1
S
4
1.5
SSW
6
1
SW
5
0.8
WSW
5
0.6
SW
5
0.2
S
9
0.4
WSW
4
0.6
WNW
4
0.4
WNW
3
0.4
WNW
3
0.4
WNW
3
0.3
NW
2
0.7
NW
3
0.8
WNW
4
0.5
WNW
3
0.3
WNW
2
0.2
W
3
0.2
N
2
0.4
ENE
3
0.7
ENE
4
1
NNE
4
1
N
4
0.6
NNW
3
0.2
SSE
11
0.2
S
3
1.2
S
5
clear
part cloud
light snow
snow showers
clear
clear
clear
part cloud
light rain
light snow
light rain
mod rain
clear
part cloud
part cloud
light snow
clear
clear
clear
clear
clear
part cloud
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
cloud
cloud
part cloud
clear
clear
cloud
light rain
clear
some clouds
light snow
snow shwrs
clear
clear
clear
some clouds
light rain
light snow
light rain
mod rain
clear
some clouds
some clouds
light snow
clear
clear
clear
clear
clear
some clouds
cloudy
some clouds
some clouds
some clouds
some clouds
some clouds
cloudy
cloudy
cloudy
some clouds
clear
clear
cloudy
light rain
 km/h
25
NW
15
NNW
20
ENE
40
NW
30
NW
25
WNW
15
W
15
WSW
35
SSW
15
WSW
35
SSW
40
WSW
35
WNW
30
W
25
W
5
WNW
25
WNW
25
WNW
20
W
20
WNW
15
WNW
20
NW
30
NW
30
WNW
25
WNW
15
WNW
15
N
15
NNE
20
NE
25
NNE
35
NNE
35
NNW
25
NW
10
NNW
15
S
35
SW
 mm 
3
1
9
1
max°C
-3
-4
-5
-7
-9
-10
-10
-4
4
2
5
8
4
0
-3
-2
-1
-4
-6
-3
-4
-7
-5
-4
-8
-6
-6
-8
-5
-5
-3
-2
-4
-6
-2
5
Moonrise
7:38
8:58
10:14
11:26
12:34
1:40
2:45
3:50
4:56
6:02
7:06
Moonset
10:54
11:30
11:56
12:18
12:36
12:53
1:09
1:27
1:46
2:10
2:39
3:15
Sunrise
7:52
7:52
7:52
7:54
7:54
7:56
7:56
7:58
7:58
7:58
8:00
8:00
Sunset
4:45
4:45
4:45
4:45
4:45
4:45
4:45
4:45
4:45
4:45
4:45
4:46
Today's sea temperature in Back Bay is
8.2° C
(Statistics for 07 Dec 1981-2005 – mean: 6.9 max: 8.5 min: 5.7°C)
Issued (local time): 1 am Sunday 07 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest