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 07:03 AM and sunset is at 07:58 PM.

Days 1–3 Weather Summary

Moderate rain (total 16mm), heaviest on Sun night. Icy conditions (max 6°C on Sun afternoon, min -2°C on Sat morning). Mainly strong winds.

Days 4–6 Weather Summary

A dusting of snow turning to light rain (total 3mm) on Thu night. Icy conditions (max 7°C on Thu night, min -8°C on Tue night). Winds increasing (light winds from the W on Tue morning, strong winds from the SSW by Thu night).

Days 7–9 Weather Summary

A dusting of snow. Milder later with heavy rain (total 29mm) on Sun night. Freeze-thaw conditions (max 8°C on Sun afternoon, min -8°C on Fri night). Winds decreasing (strong winds from the NW on Fri morning, calm by Sat morning).

Days 10–12 Weather Summary

Light rain (total 9mm), mostly falling on Mon afternoon. Freeze-thaw conditions (max 16°C on Mon afternoon, min 0°C on Wed night). Wind will be generally light.

Saturday
4
Sunday
5
Monday
6
Tuesday
7
Wednesday
8
Thursday
9
Friday
10
Saturday
11
Sunday
12
Monday
13
Tuesday
14
Wednesday
15
Thursday
16
Friday
17
Saturday
18
Sun
19
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
PM
Wave Height Map
High Tide
2:17PM6.43m
2:31AM6.53m
2:55PM6.20m
3:08AM6.31m
3:33PM5.95m
3:47AM6.07m
4:15PM5.69m
4:31AM5.84m
5:02PM5.47m
5:20AM5.64m
5:56PM5.32m
6:16AM5.53m
6:55PM5.29m
7:16AM5.53m
7:54PM5.40m
8:15AM5.67m
8:49PM5.65m
9:10AM5.91m
9:38PM5.99m
10:00AM6.21m
10:25PM6.38m
10:47AM6.53m
11:09PM6.76m
11:33AM6.81m
11:54PM7.09m
12:19PM7.01m
00:39AM7.33m
1:06PM7.11m
Low Tide
8:09AM0.98m
8:24PM1.28m
8:47AM1.18m
9:00PM1.52m
9:25AM1.41m
9:38PM1.77m
10:05AM1.67m
10:19PM2.03m
10:50AM1.91m
11:06PM2.24m
11:40AM2.10m
11:59PM2.39m
12:38PM2.20m
1:00AM2.41m
1:39PM2.16m
2:02AM2.29m
2:36PM1.99m
3:00AM2.03m
3:29PM1.72m
3:53AM1.66m
4:17PM1.41m
4:41AM1.26m
5:02PM1.10m
5:27AM0.87m
5:46PM0.82m
6:12AM0.55m
6:31PM0.63m
6:59AM0.33m
7:17PM0.55m
Wave
height (m) 
direction
period (s) 
0.8
NNE
4
0.6
NE
4
1
E
5
1.3
SSE
5
2
S
7
0.5
S
7
0.6
SW
4
0.7
W
3
0.6
WSW
5
0.4
SW
4
0.3
S
4
0.5
N
3
0.4
NNW
3
0.2
WSW
3
0.8
SSW
4
1.2
S
5
1.8
S
6
1.9
S
6
1
W
4
1
NW
4
0.4
NNW
3
0.1
S
9
0.5
SSW
3
1.2
S
5
1
SSW
5
0.6
SSW
5
0.4
S
4
0.6
S
5
0.5
S
4
0.4
W
4
0.3
W
3
0.2
S
7
0.3
SSW
3
0.4
NW
2
0.4
NW
3
0.1
E
3
0.1
SE
3
0.2
SSE
3
1.5
SSE
5
1.8
S
7
1.1
S
6
0.5
S
8
0.5
W
4
0.3
S
8
0.5
E
3
0.4
S
8
0.3
S
8
part cloud
part cloud
cloud
light rain
mod rain
mod rain
part cloud
cloud
clear
clear
part cloud
snow showers
clear
part cloud
clear
clear
cloud
light rain
clear
clear
part cloud
cloud
cloud
snow showers
rain showers
mod rain
rain showers
part cloud
mod rain
light rain
clear
part cloud
cloud
part cloud
clear
clear
part cloud
light snow
mod snow
mod rain
light rain
part cloud
clear
clear
clear
clear
clear
some clouds
some clouds
cloudy
light rain
mod rain
mod rain
some clouds
cloudy
clear
clear
some clouds
snow shwrs
clear
some clouds
clear
clear
cloudy
light rain
clear
clear
some clouds
cloudy
cloudy
snow shwrs
rain shwrs
mod rain
rain shwrs
some clouds
mod rain
light rain
clear
some clouds
cloudy
some clouds
clear
clear
some clouds
light snow
mod snow
mod rain
light rain
some clouds
clear
clear
clear
clear
clear
 km/h
35
NNE
25
NE
30
ESE
40
SSE
30
SSW
15
WSW
30
W
30
W
20
WNW
15
NW
15
S
30
N
20
NW
15
W
25
SW
40
SSW
45
SSW
45
SSW
40
NW
35
NW
20
NNW
5
W
30
SSW
35
SSW
30
SW
15
SW
20
S
15
SW
15
SSW
20
NNW
15
NNW
10
SW
10
WSW
20
NNW
20
NNW
10
NNE
10
ESE
15
SSE
40
SE
35
S
25
SW
25
NNW
25
N
15
NNE
20
ENE
15
ENE
10
SE
 mm 
1
9
6
3
4
8
17
7
2
13
8
4
max°C
-1
2
-1
3
6
6
5
5
3
2
2
-1
-3
3
0
1
2
7
-1
1
-2
-4
-1
3
7
8
8
15
16
7
7
9
7
4
6
5
1
2
5
7
7
8
5
9
6
1
5
Moonrise
11:12
12:19
1:21
2:17
3:04
3:42
4:13
4:38
5:00
5:20
5:38
5:58
6:20
6:47
7:22
Moonset
7:42
8:08
8:41
9:22
10:12
11:10
12:16
1:25
2:36
3:48
5:01
6:17
7:36
8:58
10:23
Sunrise
7:03
7:01
6:58
6:56
6:56
6:54
6:52
6:50
6:48
6:47
6:45
6:43
6:41
6:39
6:37
6:35
Sunset
7:58
7:59
8:00
8:01
8:02
8:04
8:06
8:07
8:07
8:08
8:10
8:12
8:13
8:14
8:15
8:16
Today's sea temperature in Back Bay is
2.6° C
(Statistics for 04 Apr 1981-2005 – mean: 3.6 max: 5.4 min: 2.0°C)
Issued (local time): 8 am Saturday 04 Apr 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest