Head Harbor, Isle au Haut, Penobscot Bay Sea Conditions and Tide Table

Head Harbor, Isle au Haut, Penobscot 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 06:54 AM and sunset is at 03:56 PM.

Days 1–3 Weather Summary

A dusting of new snow. Icy conditions (max 4°C on Sat night, min -8°C on Mon morning). Mainly near gales.

Days 4–6 Weather Summary

Moderate rain (total 13mm), heaviest on Tue night. Icy conditions (max 9°C on Wed afternoon, min -2°C on Fri afternoon). Winds decreasing (near gales from the SSW on Tue night, light winds from the WNW by Thu night).

Days 7–9 Weather Summary

Mostly dry. Temperatures will be below freezing (max -2°C on Sat afternoon, min -5°C on Fri night). Winds decreasing (strong winds from the NW on Sun afternoon, light winds from the NW by Mon afternoon).

Days 10–12 Weather Summary

Mostly dry. Freeze-thaw conditions (max 5°C on Thu afternoon, min -5°C on Mon night). Winds decreasing (near gales from the N on Tue night, calm by Thu morning).

Sunday
7
Monday
8
Tuesday
9
Wednesday
10
Thursday
11
Friday
12
Saturday
13
Sunday
14
Monday
15
Tuesday
16
Wednesday
17
Thu
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
Wave Height Map
High Tide
11:59AM3.47m
00:47AM2.89m
12:55PM3.33m
1:45AM2.82m
1:54PM3.15m
2:43AM2.76m
2:55PM2.96m
3:43AM2.71m
3:58PM2.78m
4:42AM2.69m
5:01PM2.64m
5:39AM2.69m
6:03PM2.55m
6:32AM2.72m
7:02PM2.49m
7:22AM2.75m
7:55PM2.47m
8:07AM2.79m
8:44PM2.47m
8:49AM2.82m
9:28PM2.48m
9:28AM2.86m
Low Tide
6:30PM-0.44m
6:39AM0.04m
7:26PM-0.30m
7:38AM0.14m
8:23PM-0.15m
8:40AM0.25m
9:21PM0.00m
9:44AM0.33m
10:20PM0.14m
10:50AM0.37m
11:17PM0.26m
11:53AM0.36m
00:12AM0.34m
12:52PM0.31m
1:04AM0.40m
1:45PM0.26m
1:52AM0.44m
2:33PM0.19m
2:36AM0.45m
3:16PM0.14m
3:15AM0.45m
3:56PM0.10m
Wave
height (m) 
direction
period (s) 
0.7
SE
9
0.7
SE
8
0.9
SE
8
1.6
NW
5
1
NNW
4
0.8
NW
4
0.2
ESE
9
0.6
SW
3
2.4
SSW
6
1.5
SSW
7
2.3
SSW
7
2.5
SSW
9
1.7
SSW
9
1.2
S
9
0.9
S
10
0.8
S
9
0.9
S
8
0.9
S
8
0.5
S
7
0.4
SSE
7
0.5
S
8
0.7
NNW
4
1
NW
4
0.9
WNW
4
0.6
WNW
4
0.4
SE
10
0.4
SE
9
0.6
NE
3
1
ENE
4
1.7
ESE
7
2.1
SE
11
1.7
SE
11
1.3
SE
10
0.6
SE
10
1
SSW
4
clear
cloud
snow showers
clear
clear
clear
part cloud
cloud
mod rain
cloud
light rain
rain showers
clear
part cloud
cloud
part cloud
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
cloud
cloud
cloud
cloud
part cloud
part cloud
clear
cloud
cloud
clear
cloudy
snow shwrs
clear
clear
clear
some clouds
cloudy
mod rain
cloudy
light rain
rain shwrs
clear
some clouds
cloudy
some clouds
clear
clear
clear
some clouds
some clouds
some clouds
some clouds
some clouds
some clouds
cloudy
cloudy
cloudy
cloudy
cloudy
some clouds
some clouds
clear
cloudy
cloudy
 km/h
25
NNW
5
N
30
WSW
50
NNW
35
NW
30
NW
15
WSW
30
SW
60
SSW
30
SW
55
SSW
55
WSW
35
WNW
30
WNW
10
SSW
15
WNW
35
NW
30
WNW
20
NW
15
WNW
15
NNW
30
NNW
40
NW
35
WNW
30
WNW
15
NW
15
NNE
30
NE
35
NE
45
NNE
50
N
40
NNW
35
NNW
0
WNW
40
SSW
 mm 
6
3
4
max°C
-2
-1
2
-8
-6
-7
-3
1
4
6
9
7
1
0
2
1
0
-4
-3
-2
-3
-4
-3
-4
-4
-3
-4
-4
-4
-4
-2
-1
-1
1
5
Moonrise
6:49
8:09
9:24
10:34
11:41
12:46
1:50
2:54
4:00
5:05
6:08
Moonset
9:57
10:33
11:01
11:24
11:43
12:00
12:17
12:36
12:56
1:20
1:50
2:28
Sunrise
6:54
6:56
6:56
6:58
6:58
6:58
7:00
7:01
7:01
7:03
7:03
7:03
Sunset
3:56
3:56
3:56
3:56
3:56
3:56
3:56
3:56
3:56
3:56
3:56
3:56
Today's sea temperature in Head Harbor, Isle au Haut, Penobscot Bay is
8.2° C
(Statistics for 07 Dec 1981-2005 – mean: 7.1 max: 8.3 min: 5.9°C)
Issued (local time): 12 am Sunday 07 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
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