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 07:09 AM and sunset is at 04:22 PM.

Days 1–3 Weather Summary

Moderate rain (total 14mm), heaviest on Fri morning. Icy conditions (max 13°C on Thu night, min -1°C on Fri night). Winds decreasing (near gales from the SSE on Fri morning, light winds from the WSW by Sat afternoon).

Days 4–6 Weather Summary

Light rain (total 8mm), mostly falling on Tue afternoon. Icy conditions (max 4°C on Tue night, min -4°C on Sun night). Winds decreasing (strong winds from the NW on Sun night, light winds from the WNW by Mon night).

Days 7–9 Weather Summary

Light rain (total 7mm), mostly falling on Thu afternoon. Very mild (max 13°C on Fri morning, min 1°C on Wed night). Winds increasing (calm on Wed night, strong winds from the WSW by Fri morning).

Days 10–12 Weather Summary

A light covering of new snow, mostly falling on Mon night. Freeze-thaw conditions (max 4°C on Sat night, min -3°C on Tue night). Winds increasing (light winds from the NNE on Sun afternoon, near gales from the NE by Tue morning).

Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tue
30
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
9:25AM0.78m
9:55PM0.57m
10:05AM0.78m
10:36PM0.59m
10:46AM0.78m
11:18PM0.60m
11:28AM0.76m
00:02AM0.61m
12:10PM0.74m
00:46AM0.62m
12:53PM0.71m
1:32AM0.63m
1:38PM0.67m
2:20AM0.66m
2:27PM0.63m
3:10AM0.69m
3:20PM0.59m
4:03AM0.73m
4:18PM0.56m
4:58AM0.77m
5:18PM0.55m
5:52AM0.83m
6:16PM0.55m
Low Tide
3:48PM-0.06m
3:37AM0.06m
4:23PM-0.07m
4:14AM0.06m
5:01PM-0.08m
4:56AM0.06m
5:42PM-0.07m
5:42AM0.06m
6:25PM-0.07m
6:33AM0.06m
7:09PM-0.06m
7:27AM0.05m
7:53PM-0.05m
8:24AM0.04m
8:37PM-0.05m
9:20AM0.02m
9:23PM-0.04m
10:18AM-0.02m
10:13PM-0.03m
11:18AM-0.06m
11:06PM-0.04m
12:17PM-0.11m
Wave
height (m) 
direction
period (s) 
1.9
SSE
7
1.8
SSE
10
1.8
SSE
11
1
SSE
10
0.8
SSE
10
1.1
SSE
9
1.1
S
8
1.1
S
8
0.9
NW
4
0.9
NNW
4
0.7
NW
4
0.2
ESE
10
0.7
SSW
4
1
SSW
6
0.8
S
7
0.7
NW
3
0.6
NNW
3
0.2
S
6
0.5
SSW
4
0.7
S
6
0.6
S
6
1.3
S
8
1.2
S
8
0.8
S
8
0.5
S
8
0.4
S
7
0.4
S
6
0.4
NNE
3
0.4
NE
3
0.3
ENE
3
0.4
E
3
0.6
E
4
1.2
E
5
1.8
E
6
1.8
ESE
9
mod rain
rain showers
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
part cloud
light rain
mod rain
clear
clear
clear
part cloud
light rain
light rain
light rain
rain showers
clear
clear
part cloud
part cloud
clear
part cloud
clear
part cloud
cloud
cloud
mod snow
cloud
cloud
mod rain
rain shwrs
some clouds
some clouds
some clouds
some clouds
some clouds
clear
clear
clear
clear
some clouds
light rain
mod rain
clear
clear
clear
some clouds
light rain
light rain
light rain
rain shwrs
clear
clear
some clouds
some clouds
clear
some clouds
clear
some clouds
cloudy
cloudy
mod snow
cloudy
cloudy
 km/h
55
SSE
35
WSW
55
W
30
W
15
WSW
40
SW
35
WSW
40
WNW
40
WNW
35
NW
30
NW
10
WNW
35
SW
35
WSW
30
WNW
30
NW
25
NNW
5
SSW
30
SW
25
WSW
15
SSW
35
SW
40
W
30
NW
15
WNW
10
W
20
NNW
20
NNE
15
NNE
15
NE
20
E
25
E
40
ENE
55
NE
50
NNE
 mm 
10
4
2
6
1
2
3
1
max°C
13
9
1
0
2
7
6
5
-1
-1
-1
2
3
3
4
3
3
3
5
6
10
13
12
7
4
6
4
2
3
1
2
2
0
0
-1
Moonrise
7:08
8:00
8:44
9:21
9:52
10:18
10:41
11:03
11:24
11:48
12:14
12:47
Moonset
3:43
4:38
5:40
6:46
7:53
9:00
10:08
11:16
12:26
1:39
2:56
Sunrise
7:09
7:09
7:09
7:09
7:11
7:11
7:11
7:11
7:11
7:11
7:13
7:13
Sunset
4:22
4:22
4:22
4:23
4:23
4:24
4:24
4:25
4:27
4:27
4:28
4:29
Today's sea temperature in Northwest Harbor is
7.2° C
(Statistics for 19 Dec 1981-2005 – mean: 8.7 max: 12.0 min: 7.2°C)
Issued (local time): 12 am Friday 19 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
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