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 — and sunset is at 07:37 PM.

Days 1–4 Weather Summary

Mostly dry. Cool air temperatures (max 12°C on Sat afternoon, min 4°C on Thu night). Wind will be generally light.

Days 5–7 Weather Summary

Light rain (total 2mm), mostly falling on Sun night. Cool air temperatures (max 15°C on Sun night, min 8°C on Tue night). Wind will be generally light.

Days 8–10 Weather Summary

Light rain (total 3mm), mostly falling on Wed night. Very mild (max 19°C on Thu afternoon, min 9°C on Thu night). Wind will be generally light.

Days 11–13 Weather Summary

Mostly dry. Very mild (max 15°C on Tue afternoon, min 6°C on Sat night). Mainly fresh winds.

Thu
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
1
Thursday
2
Friday
3
Saturday
4
Sunday
5
Monday
6
Tue
7
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
Wave Height Map
High Tide
1:14PM2.73m
1:17AM3.02m
1:53PM2.68m
1:55AM3.01m
2:35PM2.63m
2:37AM3.00m
3:20PM2.58m
3:24AM2.97m
4:10PM2.55m
4:17AM2.94m
5:06PM2.55m
5:16AM2.92m
6:04PM2.60m
6:19AM2.93m
7:04PM2.72m
7:23AM2.96m
8:03PM2.89m
8:26AM3.03m
8:58PM3.08m
9:26AM3.09m
9:51PM3.27m
10:22AM3.15m
10:42PM3.41m
Low Tide
7:08PM0.33m
7:39AM0.03m
7:47PM0.36m
8:21AM0.05m
8:29PM0.41m
9:06AM0.08m
9:15PM0.45m
9:55AM0.12m
10:07PM0.48m
10:49AM0.15m
11:04PM0.48m
11:47AM0.16m
00:06AM0.43m
12:47PM0.12m
1:09AM0.31m
1:46PM0.06m
2:12AM0.14m
2:42PM-0.02m
3:11AM-0.06m
3:36PM-0.09m
4:08AM-0.24m
4:28PM-0.14m
5:01AM-0.38m
Wave
height (m) 
direction
period (s) 
0.7
E
8
0.5
E
8
0.3
E
8
0.3
E
8
0.4
E
8
0.2
E
8
0.3
E
8
0.4
E
8
0.3
E
10
0.4
E
10
0.5
E
9
0.6
E
9
0.6
E
11
0.5
E
10
0.5
E
9
0.6
E
9
0.6
E
8
0.4
ENE
9
0.6
SE
3
0.5
E
10
0.5
E
10
0.4
ENE
10
0.3
ENE
9
0.3
E
9
0.3
E
9
0.2
E
8
0.5
NE
3
0.9
NE
4
1.8
ENE
6
1.9
ENE
7
1.8
ENE
7
1.4
ENE
7
1.8
E
7
1.6
E
8
1.3
E
9
1.1
E
9
clear
clear
clear
clear
clear
clear
part cloud
part cloud
cloud
cloud
rain showers
part cloud
cloud
part cloud
cloud
cloud
rain showers
part cloud
part cloud
rain showers
clear
clear
clear
part cloud
cloud
part cloud
cloud
cloud
cloud
cloud
cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
some clouds
some clouds
cloudy
cloudy
rain shwrs
some clouds
cloudy
some clouds
cloudy
cloudy
rain shwrs
some clouds
some clouds
rain shwrs
clear
clear
clear
some clouds
cloudy
some clouds
cloudy
cloudy
cloudy
cloudy
cloudy
some clouds
some clouds
clear
clear
clear
 km/h
15
ESE
10
WSW
10
ENE
15
ESE
10
WSW
5
ENE
15
ESE
10
SSW
10
SSW
10
SW
10
SW
15
NNE
10
ENE
10
ESE
10
SSE
10
SSE
10
SSW
5
S
15
SSE
15
SSW
20
WNW
15
NW
10
W
10
NW
15
E
5
E
20
ENE
20
NE
30
NE
30
NE
25
NE
20
NE
25
NE
20
NE
10
N
10
NE
 mm 
1.0
1.0
3
max°C
8
6
7
9
9
10
12
11
9
14
15
14
11
11
9
11
10
13
17
14
17
19
16
13
14
10
9
8
7
6
6
7
6
7
6
14
Moonrise
9:49
10:57
12:02
12:59
1:47
2:25
2:56
3:23
3:46
4:09
4:32
4:58
Moonset
6:19
6:51
7:31
8:23
9:25
10:36
11:52
1:10
2:27
3:44
5:02
6:21
7:41
Sunrise
5:45
5:43
5:41
5:41
5:39
5:37
5:37
5:35
5:33
5:33
5:31
5:30
Sunset
7:37
7:37
7:38
7:39
7:40
7:42
7:44
7:45
7:45
7:46
7:47
7:49
Today's sea temperature in Deer Island (south end), Boston Harbor is 8.1 °C (Statistics for 25 Apr 1981-2005 – mean: 6.7 max: 7.9 min: 5.3°C)
Nearest