Northwest Harbor Sea Conditions and Tide Table

Northwest Harbor 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 07:00 AM and sunset is at 04:20 PM.

Days 1–3 Weather Summary

Mostly dry. Icy conditions (max 5°C on Tue afternoon, min -6°C on Mon morning). Winds decreasing (strong winds from the NNW on Sun night, calm by Mon night).

Days 4–6 Weather Summary

Light rain (total 2mm), mostly falling on Wed night. Cool air temperatures (max 10°C on Wed afternoon, min 1°C on Thu night). Winds decreasing (strong winds from the SW on Wed afternoon, calm by Thu night).

Days 7–9 Weather Summary

A dusting of new snow. Freeze-thaw conditions (max 1°C on Mon morning, min -4°C on Sat night). Winds decreasing (fresh winds from the NW on Sun afternoon, calm by Mon afternoon).

Days 10–12 Weather Summary

A light covering of new snow, mostly falling on Tue afternoon. Freeze-thaw conditions (max 8°C on Thu night, min -2°C on Tue afternoon). Winds decreasing (near gales from the N on Tue afternoon, light winds from the WNW by Wed night).

Sunday
7
Monday
8
Tuesday
9
Wednesday
10
Thursday
11
Friday
12
Saturday
13
Sunday
14
Monday
15
Tuesday
16
Wednesday
17
Thu
18
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
11:28AM0.95m
11:54PM0.67m
12:24PM0.88m
00:51AM0.66m
1:22PM0.79m
1:54AM0.66m
2:23PM0.71m
3:04AM0.66m
3:29PM0.63m
4:20AM0.67m
4:42PM0.57m
5:27AM0.69m
5:51PM0.53m
6:19AM0.72m
6:47PM0.51m
7:01AM0.73m
7:31PM0.51m
7:37AM0.74m
8:07PM0.51m
8:11AM0.76m
8:41PM0.53m
8:47AM0.77m
Low Tide
5:52PM-0.12m
5:51AM-0.04m
6:52PM-0.08m
7:00AM0.01m
7:52PM-0.04m
8:12AM0.04m
8:50PM-0.01m
9:23AM0.07m
9:46PM0.02m
10:30AM0.09m
10:40PM0.04m
11:36AM0.09m
11:33PM0.06m
12:35PM0.07m
00:24AM0.08m
1:25PM0.05m
1:10AM0.09m
2:06PM0.02m
1:51AM0.09m
2:41PM-0.01m
2:27AM0.08m
3:14PM-0.04m
Wave
height (m) 
direction
period (s) 
0.4
SE
8
0.5
SE
8
0.7
ESE
8
1.1
N
4
0.6
NNE
4
0.3
ESE
8
0.2
ESE
9
0.4
SE
9
1
SSW
7
0.9
SSW
7
1.7
S
8
1.4
S
9
0.9
S
9
0.7
S
9
0.5
S
8
0.4
SSE
7
0.4
SSE
7
0.4
SSE
7
0.4
SSE
8
0.3
SSE
7
0.5
N
3
0.7
NNW
3
0.7
NW
4
0.3
NW
3
0.1
SE
10
0.1
SE
10
0.9
ENE
4
1.5
ENE
5
1.9
ESE
9
1.7
ESE
11
1.1
ESE
11
0.9
ESE
12
0.7
ESE
12
0.4
ESE
12
0.5
ESE
11
part cloud
part cloud
part cloud
part cloud
cloud
part cloud
part cloud
cloud
part cloud
part cloud
cloud
rain showers
clear
part cloud
cloud
cloud
part cloud
clear
clear
clear
clear
clear
clear
part cloud
part cloud
light snow
light snow
light snow
light snow
part cloud
clear
clear
clear
part cloud
cloud
some clouds
some clouds
some clouds
some clouds
cloudy
some clouds
some clouds
cloudy
some clouds
some clouds
cloudy
rain shwrs
clear
some clouds
cloudy
cloudy
some clouds
clear
clear
clear
clear
clear
clear
some clouds
some clouds
light snow
light snow
light snow
light snow
some clouds
clear
clear
clear
some clouds
cloudy
 km/h
5
NNW
15
SW
35
WNW
40
N
25
NNE
15
NNE
10
SSW
20
SSW
35
WSW
35
SSW
45
SW
40
WSW
20
NW
15
WNW
10
WNW
10
N
20
NW
15
NNW
10
WNW
10
WNW
25
NNW
30
NW
35
NW
15
WNW
10
W
5
S
35
NE
50
NNE
60
N
50
N
30
NNW
30
NW
20
WNW
15
SSW
25
WSW
 mm 
2
max°C
3
4
4
-4
-3
-4
0
5
7
9
10
8
3
3
2
2
3
0
-1
0
-2
-2
-1
-1
1
0
0
-1
-2
-1
2
2
0
3
5
Moonrise
7:16
8:32
9:44
10:52
11:57
12:59
2:01
3:03
4:05
5:08
6:10
Moonset
10:00
10:39
11:09
11:34
11:56
12:15
12:35
12:55
1:18
1:45
2:17
2:56
Sunrise
7:00
7:01
7:01
7:01
7:03
7:03
7:05
7:05
7:05
7:07
7:07
7:07
Sunset
4:20
4:20
4:20
4:20
4:20
4:20
4:20
4:20
4:21
4:21
4:21
4:22
Today's sea temperature in Northwest Harbor is
9.7° C
(Statistics for 07 Dec 1981-2005 – mean: 10.0 max: 12.9 min: 8.5°C)
Issued (local time): 12 am Sunday 07 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest