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 07:05 AM and sunset is at 03:57 PM.

Days 1–3 Weather Summary

Mostly dry. Icy conditions (max 6°C on Sat night, min -8°C on Mon night). Winds decreasing (near gales from the SW on Sat night, light winds from the NNE by Mon night).

Days 4–6 Weather Summary

Some drizzle, heaviest during Thu night. Icy conditions (max 6°C on Thu night, min -6°C on Tue morning). Winds increasing (calm on Tue morning, fresh winds from the NE by Tue night).

Days 7–9 Weather Summary

Light rain (total 3mm), mostly falling on Fri afternoon. Freeze-thaw conditions (max 7°C on Fri morning, min -11°C on Sat night). Winds decreasing (near gales from the NNW on Sat morning, light winds from the WNW by Sun night).

Days 10–12 Weather Summary

A dusting of snow giving way to moderate rain (total 18mm) heaviest on Tue morning. Freeze-thaw conditions (max 7°C on Tue afternoon, min -2°C on Mon morning). Winds decreasing (near gales from the N on Tue night, calm by Wed night).

Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
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
10:41AM2.90m
11:21PM2.50m
11:17AM2.91m
11:57PM2.50m
11:53AM2.91m
00:34AM2.51m
12:32PM2.89m
1:12AM2.54m
1:13PM2.87m
1:53AM2.58m
1:58PM2.83m
2:38AM2.65m
2:48PM2.77m
3:25AM2.73m
3:43PM2.71m
4:17AM2.83m
4:43PM2.66m
5:13AM2.94m
5:46PM2.65m
6:10AM3.07m
6:52PM2.66m
7:09AM3.19m
7:54PM2.69m
Low Tide
5:09PM0.07m
5:04AM0.42m
5:44PM0.06m
5:41AM0.41m
6:19PM0.06m
6:20AM0.40m
6:57PM0.06m
7:02AM0.38m
7:36PM0.06m
7:47AM0.36m
8:19PM0.07m
8:38AM0.32m
9:06PM0.09m
9:33AM0.27m
9:56PM0.11m
10:33AM0.19m
10:51PM0.13m
11:36AM0.08m
11:50PM0.14m
12:40PM-0.05m
00:49AM0.12m
1:42PM-0.20m
1:48AM0.10m
Wave
height (m) 
direction
period (s) 
2.5
SSE
11
1.7
S
11
2.1
S
10
2.5
S
9
2
S
9
1.5
WNW
4
1.3
NW
5
1.1
NW
4
0.5
NNW
4
0.2
ESE
10
0.4
SE
10
0.9
E
4
0.8
E
5
0.6
ESE
6
0.6
SSE
8
0.6
SE
10
0.7
ESE
10
0.5
ESE
12
1.1
S
5
1.2
S
5
1.8
W
5
1.9
NW
5
1.7
NNW
5
1.3
NNW
5
1
NW
4
0.6
WNW
3
0.4
SSE
8
0.4
SSE
8
0.3
SSE
7
0.4
SSE
3
1.5
S
5
2
S
7
2
NE
6
1.6
NE
6
1.2
ESE
8
1
ESE
9
clear
cloud
cloud
part cloud
clear
part cloud
clear
part cloud
part cloud
cloud
cloud
cloud
part cloud
clear
part cloud
part cloud
part cloud
rain showers
light rain
light rain
part cloud
clear
clear
clear
clear
clear
part cloud
clear
cloud
light snow
mod rain
mod rain
cloud
cloud
cloud
cloud
clear
cloudy
cloudy
some clouds
clear
some clouds
clear
some clouds
some clouds
cloudy
cloudy
cloudy
some clouds
clear
some clouds
some clouds
some clouds
rain shwrs
light rain
light rain
some clouds
clear
clear
clear
clear
clear
some clouds
clear
cloudy
light snow
mod rain
mod rain
cloudy
cloudy
cloudy
cloudy
 km/h
40
WNW
20
W
50
SSW
50
WSW
50
WNW
45
NW
45
NW
40
NW
25
NNW
5
ENE
25
E
35
ENE
20
NE
5
NNW
20
WSW
25
WSW
15
W
15
S
35
S
35
SSW
55
NW
60
NNW
55
NNW
40
NW
35
NW
25
WNW
15
W
15
NW
5
NNW
30
SSE
45
S
20
SSW
55
N
40
NNE
25
NNE
5
ENE
 mm 
1
1
2
3
9
6
max°C
-1
1
6
5
0
-2
-5
-5
-7
-5
-3
-2
-4
-3
2
3
3
6
7
7
6
-10
-9
-10
-8
-6
-2
-1
-1
2
6
7
2
2
2
3
Moonrise
7:59
8:42
9:17
9:46
10:09
10:30
10:49
11:09
11:29
11:53
12:23
1:02
Moonset
4:10
5:13
6:21
7:30
8:40
9:50
11:01
12:13
1:30
2:50
4:13
Sunrise
7:05
7:05
7:05
7:05
7:07
7:07
7:07
7:07
7:07
7:07
7:09
7:09
Sunset
3:57
3:59
3:59
4:00
4:00
4:00
4:01
4:01
4:02
4:04
4:05
4:06
Today's sea temperature in Head Harbor, Isle au Haut, Penobscot Bay is
6.6° C
(Statistics for 20 Dec 1981-2005 – mean: 6.2 max: 7.1 min: 4.7°C)
Issued (local time): 12 pm Saturday 20 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest