Deer Island (south end), Boston Harbor Sea Conditions and Tide Table

Deer Island (south end), Boston Harbor 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 05:05 AM and sunset is at 08:19 PM.

Days 1–3 Weather Summary

Moderate rain (total 15mm), heaviest on Wed night. Very warm air temperatures (max 30°C on Wed afternoon, min 17°C on Fri night). Wind will be generally light.

Days 4–6 Weather Summary

Light rain (total 4mm), mostly falling on Sun night. Very warm air temperatures (max 31°C on Sun afternoon, min 17°C on Sun night). Wind will be generally light.

Days 7–9 Weather Summary

Light rain (total 7mm), mostly falling on Tue afternoon. Warm (max 23°C on Wed afternoon, min 13°C on Tue night). Wind will be generally light.

Days 10–12 Weather Summary

Light rain (total 6mm), mostly falling on Sat night. Warm (max 24°C on Sat morning, min 14°C on Fri morning). Wind will be generally light.

Days 13–16 Weather Summary

Light rain (total 6mm), mostly falling on Wed morning. Warm (max 28°C on Tue afternoon, min 16°C on Wed night). Wind will be generally light.

Wednesday
10
Thursday
11
Friday
12
Saturday
13
Sunday
14
Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thu
25
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
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High Tide
7:13AM2.72m
7:39PM3.00m
8:11AM2.74m
8:32PM3.15m
9:10AM2.79m
9:26PM3.30m
10:07AM2.85m
10:19PM3.43m
11:02AM2.90m
11:13PM3.52m
11:57AM2.94m
00:07AM3.54m
12:54PM2.97m
1:04AM3.51m
1:51PM2.99m
2:01AM3.43m
2:46PM2.99m
2:58AM3.31m
3:41PM2.97m
3:55AM3.14m
4:37PM2.94m
4:55AM2.97m
5:34PM2.92m
5:56AM2.81m
6:29PM2.90m
6:56AM2.67m
7:22PM2.88m
7:56AM2.57m
Low Tide
1:24PM0.27m
2:02AM0.17m
2:17PM0.24m
3:00AM0.01m
3:12PM0.19m
3:57AM-0.15m
4:07PM0.12m
4:52AM-0.28m
5:01PM0.05m
5:46AM-0.37m
5:55PM0.02m
6:40AM-0.41m
6:50PM0.01m
7:34AM-0.39m
7:45PM0.03m
8:27AM-0.31m
8:41PM0.08m
9:20AM-0.20m
9:38PM0.16m
10:15AM-0.05m
10:38PM0.23m
11:11AM0.09m
11:40PM0.29m
12:06PM0.23m
00:40AM0.33m
12:59PM0.36m
1:39AM0.34m
1:52PM0.47m
Wave
Height (m)
Direction
Period (s)
0.4
SW
2
0.6
S
4
0.4
S
3
0.2
ESE
7
0.2
ESE
4
0.2
E
9
0.2
E
8
0.3
ESE
3
0.3
ESE
3
0.3
E
8
0.3
E
8
0.3
E
8
0.3
E
8
0.7
S
4
0.3
E
7
0.3
E
7
0.3
E
7
0.3
E
7
0.4
E
7
0.6
ESE
4
0.6
NE
4
0.4
ENE
6
0.5
E
4
0.5
SE
4
0.4
ESE
3
0.5
E
4
0.5
E
5
0.5
E
6
0.4
E
5
0.4
E
6
0.3
E
6
0.3
E
6
0.3
ENE
6
0.4
NE
5
0.3
ENE
6
0.2
E
7
0.3
NE
4
0.4
ESE
3
0.4
SE
3
0.2
E
9
0.5
S
4
0.4
SSW
3
0.2
E
8
0.3
SSE
3
0.4
NNE
3
0.4
NE
3
0.4
ESE
3
clear
part cloud
mod rain
cloud
part cloud
rain showers
part cloud
part cloud
rain showers
part cloud
clear
clear
clear
part cloud
rain showers
part cloud
part cloud
part cloud
cloud
light rain
light rain
part cloud
part cloud
light rain
light rain
cloud
cloud
light rain
rain showers
part cloud
part cloud
cloud
rain showers
clear
clear
clear
clear
part cloud
part cloud
part cloud
cloud
part cloud
rain showers
rain showers
thunderstorm
clear
clear
clear
some clouds
mod rain
cloudy
some clouds
rain shwrs
some clouds
some clouds
rain shwrs
some clouds
clear
clear
clear
some clouds
rain shwrs
some clouds
some clouds
some clouds
cloudy
light rain
light rain
some clouds
some clouds
light rain
light rain
cloudy
cloudy
light rain
rain shwrs
some clouds
some clouds
cloudy
rain shwrs
clear
clear
clear
clear
some clouds
some clouds
some clouds
cloudy
some clouds
rain shwrs
rain shwrs
risk tstorm
clear
clear
km/h
15
SW
20
SSW
15
SW
10
WNW
10
E
5
SE
10
ENE
15
ESE
5
ENE
10
NNE
10
E
5
WNW
15
SSW
25
SSW
10
W
15
WNW
5
NW
5
SSE
10
SE
10
NE
10
N
5
N
20
SE
15
SSW
15
ESE
10
E
5
N
0
S
0
SE
10
W
10
WSW
10
SSW
10
NNW
10
NE
10
E
5
NW
10
E
20
SE
10
SSW
10
SW
20
SW
15
SW
10
SSW
10
S
10
N
5
N
5
ESE
10
1
4
4
4
1
1
1
2
1
3
3
1
2
max °C
27
30
21
27
27
22
21
22
18
22
24
20
27
31
19
23
27
22
19
15
14
20
23
20
16
16
15
16
21
20
24
23
19
22
22
22
20
21
21
25
28
24
20
24
23
22
25
Moonrise
1:40
2:05
2:34
3:12
4:02
5:05
6:20
7:41
9:01
10:17
11:29
12:37
1:42
2:47
3:52
4:57
Moonset
3:15
4:32
5:53
7:15
8:31
9:35
10:24
11:02
11:31
11:56
12:17
12:37
12:57
1:18
1:43
Sunrise
5:05
5:05
5:05
5:05
5:05
5:05
5:05
5:05
5:05
5:05
5:05
5:07
5:07
5:07
5:07
5:07
Sunset
8:19
8:20
8:20
8:21
8:21
8:22
8:22
8:22
8:22
8:22
8:22
8:23
8:23
8:23
8:23
8:23
Today's sea temperature in Deer Island (south end), Boston Harbor is
16.3° C
(Statistics for 10 Jun 1981-2005 – mean: 13.7 max: 16.2 min: 11.6°C)
Issued (local time): 1 am Wednesday 10 Jun 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest