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 — and sunset is at 08:13 PM.

Days 1–4 Weather Summary

Light rain (total 7mm), mostly falling on Sun morning. Warm air temperatures (max 22°C on Sat afternoon, min 12°C on Mon night). Winds increasing (calm on Sun night, fresh winds from the N by Mon afternoon).

Days 5–7 Weather Summary

Light rain (total 5mm), mostly falling on Thu afternoon. Warm air temperatures (max 22°C on Fri morning, min 17°C on Tue night). Winds increasing (light winds from the SSW on Wed morning, fresh winds from the SSW by Thu night).

Days 8–10 Weather Summary

Light rain (total 3mm), mostly falling on Fri afternoon. Warm (max 27°C on Fri night, min 17°C on Sun night). Winds increasing (calm on Sat night, fresh winds from the NNW by Mon morning).

Days 11–13 Weather Summary

Mostly dry. Warm (max 24°C on Tue afternoon, min 15°C on Mon night). Winds decreasing (fresh winds from the NW on Mon afternoon, calm by Wed morning).

Sat
19
Sunday
20
Monday
21
Tuesday
22
Wednesday
23
Thursday
24
Friday
25
Saturday
26
Sunday
27
Monday
28
Tuesday
29
Wednesday
30
Thu
31
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
6:29PM3.46m
7:13AM2.94m
7:32PM3.50m
8:21AM2.92m
8:35PM3.55m
9:26AM2.97m
9:37PM3.61m
10:26AM3.04m
10:34PM3.67m
11:20AM3.12m
11:28PM3.68m
12:11PM3.17m
00:18AM3.65m
12:58PM3.20m
1:06AM3.56m
1:43PM3.19m
1:52AM3.43m
2:26PM3.17m
2:37AM3.27m
3:08PM3.12m
3:23AM3.09m
3:51PM3.07m
4:11AM2.91m
Low Tide
12:07PM0.21m
1:00AM0.04m
1:10PM0.28m
2:07AM-0.02m
2:14PM0.29m
3:11AM-0.10m
3:16PM0.26m
4:11AM-0.19m
4:15PM0.20m
5:05AM-0.25m
5:10PM0.15m
5:56AM-0.27m
6:02PM0.12m
6:43AM-0.24m
6:51PM0.12m
7:28AM-0.16m
7:39PM0.16m
8:11AM-0.05m
8:26PM0.23m
8:53AM0.10m
9:13PM0.30m
9:35AM0.26m
10:02PM0.38m
10:18AM0.42m
Wave
height (m) 
direction
period (s) 
0.5
S
4.0
0.3
S
2.0
0.3
S
2.0
0.2
S
3.0
0.2
WNW
2.0
0.5
NNW
3.0
0.7
NNW
3.0
0.3
NW
3.0
0.2
NNW
3.0
0.4
SSW
3.0
0.2
S
3.0
0.1
N
2.0
0.4
SSW
4.0
0.4
SSW
3.0
0.5
S
4.0
0.8
S
4.0
0.9
SSW
4.0
0.4
SSW
3.0
0.4
SW
3.0
0.3
NW
3.0
0.2
NNW
3.0
0.3
SSW
3.0
0.1
S
3.0
0.1
S
2.0
0.4
S
3.0
0.5
S
4.0
0.5
NW
3.0
0.7
NW
4.0
0.3
W
3.0
0.2
WNW
3.0
0.3
SSW
2.0
0.1
S
3.0
0.1
S
2.0
0.3
SSW
3.0
0.2
S
3.0
0.2
S
2.0
clear
part cloud
light rain
light rain
rain showers
clear
clear
clear
clear
clear
part cloud
clear
clear
part cloud
cloud
light rain
rain showers
light rain
rain showers
clear
clear
clear
part cloud
cloud
cloud
rain showers
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
some clouds
light rain
light rain
rain shwrs
clear
clear
clear
clear
clear
some clouds
clear
clear
some clouds
cloudy
light rain
rain shwrs
light rain
rain shwrs
clear
clear
clear
some clouds
cloudy
cloudy
rain shwrs
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
 km/h
20
SSW
20
S
15
SSE
10
S
15
NW
25
NNW
35
N
15
NW
10
NNW
20
SW
10
W
5
SSW
20
SSW
20
SSW
25
SSW
30
SSW
30
SSW
10
SW
15
NW
15
NNW
10
NNW
20
SSW
5
W
10
S
25
S
15
SSW
35
NNW
25
NNW
20
WNW
15
NW
20
SSW
5
NNW
10
SSW
20
SSW
10
SW
15
SSW
 mm 
5
1
1
1
3
1
1
2
max°C
22
21
18
17
17
17
20
17
18
21
19
20
21
19
17
17
18
22
26
27
23
26
22
19
19
18
22
22
19
20
24
20
19
20
19
19
Moonrise
12:32
1:15
2:10
3:18
4:33
5:51
7:06
8:17
9:25
10:31
11:36
12:40
Moonset
3:26
4:46
6:00
7:04
7:53
8:30
8:58
9:21
9:40
9:57
10:14
10:32
10:51
Sunrise
5:09
5:09
5:11
5:11
5:13
5:13
5:15
5:16
5:16
5:18
5:18
5:20
Sunset
8:13
8:12
8:10
8:09
8:08
8:07
8:07
8:06
8:05
8:04
8:02
8:01
Today's sea temperature in Northwest Harbor, Deer Isle, Penobscot Bay is 12.9 °C (Statistics for 19 Jul 1981-2005 – mean: 15.1 max: 16.7 min: 13.7°C)
Issued (local time): 1 pm Saturday 19 Jul 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest