Northwest Harbor, Deer Isle, Penobscot Bay Sea Conditions and Tide Table

Northwest Harbor, Deer Isle, 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 07:07 AM and sunset is at 04:00 PM.

Days 1–3 Weather Summary

A dusting of new snow. Air temperatures will be below freezing (max 0°C on Thu morning, min -13°C on Thu night). Winds decreasing (strong winds from the NNW on Thu afternoon, light winds from the N by Fri afternoon).

Days 4–6 Weather Summary

Moderate rain (total 11mm), heaviest on Mon afternoon. Icy conditions (max 7°C on Mon afternoon, min -9°C on Tue afternoon). Winds increasing (calm on Sun night, near gales from the W by Mon night).

Days 7–9 Weather Summary

A light covering of new snow, mostly falling on Fri morning. Temperatures will be below freezing (max -3°C on Wed afternoon, min -15°C on Fri night). Winds decreasing (strong winds from the WNW on Wed night, calm by Thu night).

Days 10–12 Weather Summary

A dusting of new snow. Freeze-thaw conditions (max 3°C on Mon morning, min -15°C on Sat morning). Winds decreasing (fresh winds from the SW on Sun night, calm by Tue morning).

Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Thursday
1
Friday
2
Saturday
3
Sunday
4
Monday
5
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
2:06PM3.14m
2:46AM2.94m
2:56PM3.08m
3:33AM3.03m
3:51PM3.01m
4:25AM3.14m
4:51PM2.96m
5:21AM3.27m
5:54PM2.94m
6:18AM3.40m
7:00PM2.96m
7:17AM3.55m
8:02PM2.98m
8:15AM3.64m
9:03PM3.07m
9:13AM3.76m
10:00PM3.15m
10:09AM3.82m
10:55PM3.22m
11:04AM3.83m
11:48PM3.25m
11:57AM3.76m
00:39AM3.25m
Low Tide
7:55AM0.40m
8:27PM0.08m
8:46AM0.36m
9:14PM0.10m
9:41AM0.30m
10:04PM0.12m
10:41AM0.21m
10:59PM0.15m
11:44AM0.09m
11:58PM0.16m
12:48PM-0.06m
00:57AM0.13m
1:50PM-0.22m
1:56AM0.11m
2:49PM-0.34m
2:55AM0.03m
3:46PM-0.45m
3:51AM-0.05m
4:40PM-0.52m
4:47AM-0.09m
5:32PM-0.52m
5:41AM-0.09m
6:23PM-0.46m
6:34AM-0.05m
Wave
height (m) 
direction
period (s) 
0.4
SW
3
0.9
NNW
4
1.2
NNW
4
0.8
NNW
4
0.4
NNW
3
0.4
N
3
0.4
N
3
0.4
NNW
3
0.6
NNW
3
0.6
NNW
3
0.2
NNW
3
0.1
S
2
0.5
S
3
1
SSE
5
1.2
SW
5
1.6
W
5
1.4
W
5
1.1
W
4
1.1
W
4
0.6
WSW
4
1
W
5
0.5
W
4
0.4
WSW
4
0.1
W
2
0.3
NE
2
0.7
N
3
1
NNW
4
0.6
NW
4
0.4
WNW
3
0.4
NW
3
0.2
W
3
0.1
SW
2
0.9
SSW
4
0.6
SW
4
0.5
SW
4
0.6
W
4
snow showers
clear
clear
clear
clear
cloud
cloud
clear
clear
clear
part cloud
cloud
light rain
mod rain
part cloud
part cloud
part cloud
clear
cloud
part cloud
snow showers
clear
cloud
cloud
light snow
light snow
clear
clear
clear
clear
clear
cloud
light snow
part cloud
cloud
part cloud
snow shwrs
clear
clear
clear
clear
cloudy
cloudy
clear
clear
clear
some clouds
cloudy
light rain
mod rain
some clouds
some clouds
some clouds
clear
cloudy
some clouds
snow shwrs
clear
cloudy
cloudy
light snow
light snow
clear
clear
clear
clear
clear
cloudy
light snow
some clouds
cloudy
some clouds
 km/h
25
W
40
NNW
45
NNW
30
NNW
20
N
20
N
20
N
20
NNW
30
NNW
30
NNW
15
NW
10
SE
25
SE
30
SSE
45
W
55
W
50
W
45
W
40
W
25
W
40
WNW
25
W
20
WNW
0
WNW
25
NE
35
N
40
NNW
30
NW
25
WNW
20
WNW
15
W
15
SW
35
SW
20
W
20
W
30
NW
 mm 
5
6
max°C
0
-2
-8
-9
-9
-11
-8
-7
-6
0
0
4
6
7
4
-7
-9
-7
-4
-3
-7
-11
-9
-8
-8
-8
-11
-13
-10
-8
-4
-2
1
3
3
1
Moonrise
10:31
10:50
11:09
11:29
11:53
12:23
1:02
1:54
3:01
4:18
5:40
6:59
Moonset
9:50
11:01
12:14
1:30
2:51
4:14
5:35
6:46
7:44
8:27
9:00
Sunrise
7:07
7:09
7:09
7:09
7:09
7:09
7:09
7:09
7:09
7:09
7:09
7:09
Sunset
4:00
4:00
4:01
4:02
4:02
4:04
4:05
4:06
4:07
4:07
4:08
4:09
Today's sea temperature in Northwest Harbor, Deer Isle, Penobscot Bay is
4.7° C
(Statistics for 25 Dec 1981-2005 – mean: 5.9 max: 6.8 min: 4.3°C)
Issued (local time): 12 pm Thursday 25 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
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