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 light covering of new snow, mostly falling on Tue night. Air temperatures will be below freezing (max 0°C on Thu morning, min -12°C on Thu night). Winds increasing (light winds from the N on Wed night, strong winds from the NNW by Thu afternoon).

Days 4–6 Weather Summary

Light rain (total 8mm), mostly falling on Mon morning. Icy conditions (max 6°C on Mon morning, min -12°C on Fri night). Mainly strong winds.

Days 7–9 Weather Summary

Mostly dry. Temperatures will be below freezing (max 0°C on Wed night, min -10°C on Thu morning). Mainly fresh winds.

Days 10–12 Weather Summary

Mostly dry. Freeze-thaw conditions (max 1°C on Sun night, min -19°C on Fri night). Winds decreasing (strong winds from the NNW on Thu night, calm by Sat night).

Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Thursday
1
Friday
2
Saturday
3
Sun
4
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
1:21PM3.18m
2:01AM2.87m
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
Low Tide
7:10AM0.43m
7:44PM0.07m
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
Wave
height (m) 
direction
period (s) 
0.8
E
4
0.5
NE
4
0.1
NW
2
0.4
SW
3
0.8
NNW
3
1.3
NNW
4
0.9
NNW
4
0.5
N
3
0.4
NNE
3
0.4
N
3
0.4
N
3
0.3
NNW
3
0.3
NNW
3
0.1
NW
2
0.2
SSW
2
1.2
S
5
1
SW
4
0.9
WSW
4
0.9
WSW
5
1
WSW
5
0.5
WSW
4
0.4
WSW
4
0.4
SW
3
0.8
SW
4
0.5
NW
4
0.4
NNW
3
0.8
NNW
3
0.9
NNW
4
0.7
NW
4
0.6
NNW
3
0.4
NNW
3
0.2
NNW
3
0
W
2
0.3
SW
2
0.7
SSW
4
light snow
clear
part cloud
snow showers
part cloud
clear
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
light rain
mod rain
part cloud
cloud
cloud
cloud
part cloud
part cloud
part cloud
part cloud
cloud
cloud
part cloud
clear
clear
clear
part cloud
clear
part cloud
part cloud
clear
light snow
clear
some clouds
snow shwrs
some clouds
clear
clear
some clouds
some clouds
some clouds
clear
clear
clear
clear
light rain
mod rain
some clouds
cloudy
cloudy
cloudy
some clouds
some clouds
some clouds
some clouds
cloudy
cloudy
some clouds
clear
clear
clear
some clouds
clear
some clouds
some clouds
clear
 km/h
30
NE
20
NNE
10
W
20
WSW
40
NNW
45
NNW
35
NNW
25
N
20
NNE
20
N
20
N
20
NNW
15
NW
10
NW
15
SSW
35
SE
40
W
30
W
35
W
35
W
25
W
20
W
20
WSW
30
W
20
NNW
20
N
35
NNW
35
NNW
30
NW
30
NNW
25
NNW
15
NW
5
WNW
20
SW
25
SW
 mm 
1
7
max°C
-3
-4
-1
0
-1
-8
-9
-9
-10
-7
-7
-8
-2
0
4
6
3
-3
-3
-4
-6
-5
-2
0
-9
-9
-11
-15
-15
-18
-15
-14
-6
-2
-1
Moonrise
10:10
10:31
10:50
11:09
11:29
11:53
12:23
1:02
1:54
3:01
4:18
5:40
Moonset
8:40
9:50
11:01
12:14
1:30
2:51
4:14
5:35
6:46
7:44
8:27
Sunrise
7:07
7:07
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
4:00
4:01
4:02
4:02
4:04
4:05
4:06
4:07
4:07
4:08
Today's sea temperature in Northwest Harbor, Deer Isle, Penobscot Bay is
5.1° C
(Statistics for 24 Dec 1981-2005 – mean: 6.0 max: 6.8 min: 4.7°C)
Issued (local time): 12 am Wednesday 24 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
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