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 05:28 AM and sunset is at 07:35 PM.

Days 1–3 Weather Summary

Heavy rain (total 25mm), heaviest during Thu night. Cool air temperatures (max 10°C on Fri afternoon, min 4°C on Wed morning). Mainly fresh winds.

Days 4–6 Weather Summary

Some drizzle, heaviest during Sun night. Low air temperatures (max 9°C on Sat morning, min 5°C on Sat night). Winds increasing (light winds from the W on Sun morning, fresh winds from the SW by Mon night).

Days 7–9 Weather Summary

Moderate rain (total 10mm), heaviest on Tue night. Very mild (max 11°C on Tue night, min 6°C on Thu morning). Winds decreasing (strong winds from the S on Tue afternoon, calm by Wed morning).

Days 10–12 Weather Summary

Light rain (total 3mm), mostly falling on Sat night. Very mild (max 14°C on Fri afternoon, min 6°C on Fri night). Wind will be generally light.

Wednesday
29
Thursday
30
Friday
1
Saturday
2
Sunday
3
Monday
4
Tuesday
5
Wednesday
6
Thursday
7
Friday
8
Saturday
9
Sunday
10
Monday
11
Tuesday
12
Wednesday
13
Thu
14
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
PM
Wave Height Map
High Tide
10:24AM3.17m
10:40PM3.36m
11:08AM3.15m
11:17PM3.39m
11:49AM3.11m
11:52PM3.38m
12:27PM3.05m
00:27AM3.34m
1:03PM2.98m
1:01AM3.29m
1:40PM2.90m
1:37AM3.23m
2:19PM2.83m
2:16AM3.16m
2:59PM2.75m
2:58AM3.08m
3:43PM2.69m
3:44AM3.01m
4:31PM2.67m
4:34AM2.95m
5:21PM2.70m
5:29AM2.92m
6:13PM2.78m
6:26AM2.92m
7:05PM2.92m
7:24AM2.97m
7:55PM3.11m
8:21AM3.06m
Low Tide
4:26PM0.17m
4:56AM-0.02m
5:06PM0.22m
5:36AM-0.05m
5:43PM0.28m
6:14AM-0.04m
6:18PM0.35m
6:50AM0.00m
6:52PM0.42m
7:26AM0.07m
7:28PM0.49m
8:04AM0.15m
8:05PM0.56m
8:43AM0.24m
8:46PM0.63m
9:26AM0.32m
9:31PM0.68m
10:12AM0.38m
10:21PM0.71m
11:01AM0.42m
11:16PM0.69m
11:52AM0.42m
00:14AM0.62m
12:45PM0.39m
1:13AM0.48m
1:37PM0.32m
2:10AM0.27m
2:28PM0.23m
Wave
height (m) 
direction
period (s) 
0.3
ESE
2
0.4
SE
3
0.6
SE
4
0.7
SE
4
0.8
SE
4
0.3
SE
3
0.4
NW
3
0.3
NW
3
0.2
W
2
0.2
W
3
0.5
S
3
0.2
S
2
0.2
N
2
0.3
SSW
2
0.2
W
3
0.3
S
3
0.6
S
4
0.7
SSW
4
1
S
4
1.8
S
6
0.9
S
5
0.4
SW
3
0.5
S
4
0.2
S
5
0.3
SSE
3
0.5
SSE
3
0.6
S
4
0.4
SSW
3
0.4
WNW
3
0.5
W
4
0.4
SW
3
0.5
SSW
3
0.2
WSW
2
0.2
WSW
3
0.4
W
3
0.3
W
3
0.2
W
2
0.2
W
2
0.3
NNW
3
0.2
NNE
4
0.2
SSE
3
0.1
S
2
0.1
N
2
0.4
SSW
3
0.1
S
3
0.1
N
2
0.3
S
3
cloud
light rain
light rain
cloud
mod rain
heavy rain
cloud
part cloud
clear
clear
part cloud
part cloud
clear
part cloud
rain showers
clear
part cloud
part cloud
cloud
part cloud
rain showers
part cloud
clear
clear
part cloud
light rain
light rain
cloud
part cloud
clear
part cloud
part cloud
rain showers
part cloud
light rain
part cloud
cloud
light rain
clear
part cloud
part cloud
part cloud
clear
clear
part cloud
clear
part cloud
cloudy
light rain
light rain
cloudy
mod rain
heavy rain
cloudy
some clouds
clear
clear
some clouds
some clouds
clear
some clouds
rain shwrs
clear
some clouds
some clouds
cloudy
some clouds
rain shwrs
some clouds
clear
clear
some clouds
light rain
light rain
cloudy
some clouds
clear
some clouds
some clouds
rain shwrs
some clouds
light rain
some clouds
cloudy
light rain
clear
some clouds
some clouds
some clouds
clear
clear
some clouds
clear
some clouds
 km/h
15
E
15
E
25
ESE
30
ESE
30
ESE
5
ENE
20
NW
10
NW
15
WNW
10
WSW
20
SSW
10
NNE
5
W
20
SW
15
WNW
20
SSW
25
S
25
SSW
35
S
45
SSW
20
W
5
NW
20
SSW
5
SSW
15
SE
20
SE
20
SSE
15
NNW
15
WSW
20
WNW
15
SW
20
SW
15
W
15
SW
20
WNW
15
WNW
15
W
10
WSW
20
N
10
ENE
10
S
5
WNW
10
SW
20
SSW
5
SW
0
WSW
15
SSW
 mm 
1
2
9
13
1
5
2
3
1
2
1
max°C
5
4
5
6
7
7
8
10
9
9
8
8
8
9
8
7
7
8
8
9
11
9
10
9
7
8
9
11
14
11
10
10
8
10
10
10
9
10
10
9
8
6
10
10
10
17
17
Moonrise
5:51
6:57
8:05
9:11
10:14
11:12
12:02
12:43
1:17
1:44
2:07
2:28
2:47
3:07
3:28
Moonset
4:15
4:34
4:56
5:21
5:52
6:31
7:18
8:13
9:15
10:21
11:29
12:38
1:48
3:00
4:14
5:34
Sunrise
5:28
5:28
5:26
5:24
5:22
5:22
5:20
5:18
5:18
5:16
5:15
5:13
5:13
5:11
5:09
5:09
Sunset
7:35
7:36
7:37
7:38
7:39
7:40
7:42
7:43
7:45
7:45
7:46
7:47
7:49
7:50
7:52
7:52
Today's sea temperature in Northwest Harbor, Deer Isle, Penobscot Bay is
5.8° C
(Statistics for 29 Apr 1981-2005 – mean: 5.9 max: 7.2 min: 4.4°C)
Issued (local time): 1 am Wednesday 29 Apr 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest