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 07:05 AM and sunset is at 04:24 PM.

Days 1–3 Weather Summary

A dusting of new snow. Icy conditions (max 3°C on Sun morning, min -7°C on Tue afternoon). Mainly strong winds.

Days 4–6 Weather Summary

A dusting of new snow. Icy conditions (max 3°C on Wed night, min -10°C on Fri afternoon). Winds increasing (light winds from the W on Tue night, strong winds from the SW by Wed night).

Days 7–9 Weather Summary

A heavy fall of snow, heaviest during Sat afternoon. Temperatures will be below freezing (max -3°C on Sat morning, min -21°C on Sun afternoon). Winds increasing (light winds from the NE on Fri night, near gales from the WNW by Mon morning).

Days 10–12 Weather Summary

A light covering of new snow, mostly falling on Thu night. Temperatures will be below freezing (max 0°C on Thu morning, min -14°C on Mon night). Winds increasing (calm on Wed night, near gales from the N by Thu night).

Sunday
18
Monday
19
Tuesday
20
Wednesday
21
Thursday
22
Friday
23
Saturday
24
Sunday
25
Monday
26
Tuesday
27
Wednesday
28
Thursday
29
Friday
30
Saturday
31
Sunday
1
Mon
2
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
AM
PM
night
AM
PM
night
AM
PM
night
AM
Wave Height Map
High Tide
10:25AM3.26m
11:01PM2.83m
11:01AM3.31m
11:36PM2.90m
11:37AM3.34m
00:10AM2.98m
12:15PM3.34m
00:47AM3.06m
12:55PM3.31m
1:26AM3.14m
1:40PM3.23m
2:08AM3.20m
2:28PM3.13m
2:56AM3.24m
3:23PM3.00m
3:49AM3.26m
4:24PM2.87m
4:48AM3.28m
5:32PM2.78m
5:53AM3.31m
6:44PM2.77m
7:01AM3.38m
7:54PM2.84m
8:07AM3.49m
8:56PM2.96m
9:08AM3.60m
9:53PM3.10m
10:03AM3.68m
Low Tide
4:50PM0.02m
4:47AM0.31m
5:24PM-0.04m
5:25AM0.24m
5:58PM-0.09m
6:03AM0.18m
6:33PM-0.11m
6:45AM0.12m
7:12PM-0.10m
7:29AM0.09m
7:53PM-0.06m
8:18AM0.07m
8:39PM0.01m
9:12AM0.07m
9:30PM0.11m
10:12AM0.08m
10:27PM0.22m
11:19AM0.07m
11:30PM0.28m
12:29PM0.02m
00:38AM0.29m
1:38PM-0.09m
1:45AM0.22m
2:41PM-0.22m
2:48AM0.10m
3:38PM-0.34m
3:45AM-0.02m
4:30PM-0.42m
Wave
height (m) 
direction
period (s) 
0.4
SSW
3
0.3
SSW
3
0.5
NNE
3
0.3
N
4
0.3
SSW
2
1.3
SW
5
0.7
SW
4
0.5
WSW
4
0.7
W
4
0.3
SW
3
0.6
SW
3
1.1
SW
5
0.9
SSW
4
0.8
SSW
4
0.6
W
4
0.9
W
4
0.9
WNW
4
0.2
W
4
0.3
E
2
0.5
NNE
3
0.9
NNE
4
1.3
NNW
4
1.5
NNW
5
1.3
WNW
5
1.5
W
5
1.6
W
5
1.2
WNW
4
0.8
WNW
4
0.7
NW
4
0.6
NW
3
0.2
NNW
2
0.1
W
3
0.1
E
2
0.4
ENE
3
0.8
NNE
4
1.7
N
5
1.8
N
5
1.7
NNW
5
1.3
NNW
5
0.6
NW
3
0.5
NW
3
0.3
W
2
0.4
SW
3
0.4
SW
3
0.9
NNW
4
0.8
NNW
4
cloud
cloud
light snow
cloud
part cloud
clear
cloud
part cloud
clear
cloud
cloud
light snow
cloud
part cloud
part cloud
part cloud
part cloud
light snow
light snow
mod snow
mod snow
light snow
part cloud
part cloud
part cloud
cloud
part cloud
clear
clear
clear
part cloud
cloud
light snow
light snow
light snow
heavy snow
light snow
part cloud
clear
part cloud
clear
part cloud
cloud
clear
clear
clear
cloudy
cloudy
light snow
cloudy
some clouds
clear
cloudy
some clouds
clear
cloudy
cloudy
light snow
cloudy
some clouds
some clouds
some clouds
some clouds
light snow
light snow
mod snow
mod snow
light snow
some clouds
some clouds
some clouds
cloudy
some clouds
clear
clear
clear
some clouds
cloudy
light snow
light snow
light snow
heavy snow
light snow
some clouds
clear
some clouds
clear
some clouds
cloudy
clear
clear
clear
 km/h
20
SW
5
NNW
25
NNE
5
NNW
15
SW
40
WSW
25
W
20
WNW
35
W
20
WSW
30
SW
35
SW
30
SW
25
SW
30
WNW
40
WNW
35
WNW
10
NW
20
E
25
NNE
35
N
45
NNW
55
NNW
50
WNW
55
WNW
55
WNW
45
WNW
35
WNW
30
NW
30
NW
15
NNW
10
SW
15
ENE
20
NE
35
NNE
55
N
60
NNW
55
NNW
45
NW
30
NW
25
WNW
15
W
25
WSW
20
WSW
40
NW
30
NNW
 mm 
max°C
3
1
-1
-3
-1
-2
-6
-6
-8
-6
-1
3
3
2
-2
-8
-8
-9
-3
-6
-9
-14
-19
-19
-16
-16
-13
-7
-6
-8
-4
-3
-2
0
-1
-3
-3
-4
-5
-4
-2
-2
0
2
-7
-8
Moonrise
7:20
7:50
8:15
8:36
8:56
9:15
9:34
9:56
10:23
10:56
11:41
12:39
1:51
3:10
4:31
Moonset
4:09
5:20
6:31
7:42
8:53
10:05
11:19
12:36
1:56
3:15
4:29
5:31
6:19
6:56
7:24
Sunrise
7:05
7:03
7:03
7:01
7:01
7:01
7:00
6:58
6:58
6:56
6:56
6:54
6:54
6:52
6:52
6:50
Sunset
4:24
4:25
4:28
4:29
4:30
4:31
4:32
4:34
4:36
4:37
4:38
4:39
4:40
4:43
4:44
Today's sea temperature in Northwest Harbor, Deer Isle, Penobscot Bay is
2.3° C
(Statistics for 18 Jan 1981-2005 – mean: 4.6 max: 5.6 min: 3.7°C)
Issued (local time): 12 am Sunday 18 Jan 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest