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 05:35 AM and sunset is at 07:30 PM.

Days 1–3 Weather Summary

Heavy rain (total 35mm), heaviest during Sat afternoon. Cool air temperatures (max 15°C on Fri afternoon, min 4°C on Sun night). Winds increasing (calm on Fri morning, strong winds from the SSE by Sat afternoon).

Days 4–6 Weather Summary

Light rain (total 4mm), mostly falling on Mon morning. Cool air temperatures (max 18°C on Mon afternoon, min 6°C on Wed night). Winds increasing (light winds from the NW on Mon night, strong winds from the WNW by Wed afternoon).

Days 7–9 Weather Summary

Moderate rain (total 10mm), heaviest on Fri night. Very mild (max 12°C on Sat afternoon, min 4°C on Sat night). Winds increasing (light winds from the WNW on Thu morning, fresh winds from the SSE by Fri night).

Days 10–12 Weather Summary

Light rain (total 5mm), mostly falling on Tue afternoon. Very mild (max 11°C on Mon afternoon, min 5°C on Sun morning). Wind will be generally light.

Friday
25
Saturday
26
Sunday
27
Monday
28
Tuesday
29
Wednesday
30
Thursday
1
Friday
2
Saturday
3
Sunday
4
Monday
5
Tuesday
6
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
9:17AM3.37m
9:42PM3.56m
10:12AM3.49m
10:31PM3.78m
11:05AM3.55m
11:19PM3.93m
11:57AM3.56m
00:08AM3.99m
12:49PM3.50m
00:59AM3.95m
1:44PM3.38m
1:52AM3.83m
2:40PM3.23m
2:49AM3.64m
3:40PM3.08m
3:50AM3.43m
4:44PM2.96m
4:56AM3.23m
5:50PM2.89m
6:04AM3.09m
6:54PM2.89m
7:11AM3.00m
7:53PM2.94m
Low Tide
3:27PM-0.09m
3:58AM-0.27m
4:17PM-0.19m
4:50AM-0.49m
5:05PM-0.24m
5:42AM-0.62m
5:54PM-0.23m
6:34AM-0.64m
6:45PM-0.16m
7:27AM-0.57m
7:37PM-0.03m
8:22AM-0.42m
8:33PM0.13m
9:21AM-0.22m
9:33PM0.30m
10:23AM-0.02m
10:38PM0.45m
11:28AM0.14m
11:48PM0.53m
12:32PM0.26m
00:56AM0.54m
1:33PM0.32m
2:00AM0.48m
Wave
height (m) 
direction
period (s) 
0.2
S
3
0.3
S
3
0.4
SE
3
0.8
S
4
1.2
S
5
0.6
S
3
0.7
SSW
4
0.7
W
4
0.9
NNW
5
0.5
N
4
0.4
NNW
4
0.2
NNW
3
0.3
S
3
0.5
S
3
0.7
SSW
4
1
SSW
4
1
W
5
0.6
WNW
4
0.2
NNW
4
0.5
S
4
0.2
SSW
2
0.5
S
3
0.8
SSE
4
0.7
S
4
0.5
NW
3
0.3
SSW
4
0.5
NW
4
0.4
NNW
4
0.3
SW
4
0.3
NW
2
0.2
SSW
3
0.4
S
4
0.1
SW
2
0.2
S
3
0.3
SE
3
0.3
SSE
4
part cloud
part cloud
light rain
mod rain
heavy rain
rain showers
part cloud
light rain
light rain
rain showers
clear
clear
clear
part cloud
rain showers
rain showers
clear
clear
clear
clear
part cloud
cloud
light rain
mod rain
cloud
cloud
part cloud
cloud
part cloud
part cloud
part cloud
cloud
cloud
light rain
light rain
light rain
some clouds
some clouds
light rain
mod rain
heavy rain
rain shwrs
some clouds
light rain
light rain
rain shwrs
clear
clear
clear
some clouds
rain shwrs
rain shwrs
clear
clear
clear
clear
some clouds
cloudy
light rain
mod rain
cloudy
cloudy
some clouds
cloudy
some clouds
some clouds
some clouds
cloudy
cloudy
light rain
light rain
light rain
 km/h
5
NNW
10
S
20
ESE
30
S
30
SSW
15
SSW
25
SW
30
WNW
30
NNW
20
N
20
NNW
10
NNW
20
SSW
20
S
20
SW
35
SW
40
WNW
25
NW
5
WNW
20
SSW
10
SSW
20
SSE
30
SE
20
S
20
NNW
10
NW
20
NNW
15
NNW
10
NW
10
NNW
10
W
15
S
10
WSW
10
SSE
20
ESE
5
SSE
 mm 
2
6
18
2
3
4
1
1
2
1
9
1
3
1
max°C
14
15
14
9
9
8
6
7
6
14
18
16
13
11
10
11
17
10
10
11
9
8
7
9
9
12
8
5
10
10
10
11
11
7
7
8
Moonrise
4:20
4:42
5:06
5:35
6:12
7:01
8:02
9:12
10:25
11:39
12:48
1:55
Moonset
5:03
6:26
7:51
9:18
10:42
11:54
12:52
1:35
2:08
2:33
2:53
Sunrise
5:35
5:33
5:31
5:31
5:28
5:28
5:26
5:24
5:22
5:22
5:20
5:18
Sunset
7:30
7:30
7:32
7:34
7:35
7:36
7:37
7:38
7:39
7:40
7:42
7:43
Today's sea temperature in Northwest Harbor, Deer Isle, Penobscot Bay is 4.8 °C (Statistics for 25 Apr 1981-2005 – mean: 5.5 max: 7.0 min: 3.9°C)
Issued (local time): 7 am Friday 25 Apr 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest