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

Mostly dry. Icy conditions (max 7°C on Sat night, min -4°C on Sun night). Winds decreasing (strong winds from the NW on Sun night, light winds from the WSW by Mon night).

Days 4–6 Weather Summary

Moderate rain (total 12mm), heaviest on Tue morning. Low air temperatures (max 6°C on Thu night, min 1°C on Tue night). Winds decreasing (strong winds from the NNW on Tue night, calm by Thu night).

Days 7–9 Weather Summary

Light rain (total 7mm), mostly falling on Fri morning. Freeze-thaw conditions (max 10°C on Fri afternoon, min -7°C on Sun night). Winds increasing (calm on Sat morning, strong winds from the NW by Sun afternoon).

Days 10–12 Weather Summary

Mostly dry. Freeze-thaw conditions (max 3°C on Mon night, min -8°C on Tue night). Winds decreasing (strong winds from the NW on Tue afternoon, light winds from the SW by Wed night).

Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
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
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
6:46AM0.88m
7:06PM0.57m
Low Tide
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
00:03AM-0.05m
1:15PM-0.16m
00:58AM-0.07m
Wave
height (m) 
direction
period (s) 
1.1
SSE
10
0.8
SSE
10
1
SSE
9
1
S
8
0.9
SSE
8
0.9
NW
4
0.7
NW
4
0.4
SE
10
0.2
ESE
9
0.8
SSW
4
0.8
S
7
0.9
S
8
0.8
N
4
0.4
S
8
0.3
ESE
12
0.5
ESE
13
0.6
ESE
13
0.4
ESE
12
0.7
ESE
12
0.9
S
6
1.1
NNW
4
0.5
S
8
0.4
S
8
0.6
SSE
4
0.6
S
5
0.9
NNW
4
0.9
NNW
4
0.6
NW
4
0.4
WNW
3
0.9
WSW
4
0.9
NW
4
0.9
NW
4
1
NW
4
0.7
WNW
4
0.5
WNW
3
0.1
NW
2
clear
part cloud
part cloud
clear
clear
clear
clear
part cloud
cloud
mod rain
light rain
part cloud
clear
clear
part cloud
clear
clear
part cloud
light rain
light rain
clear
part cloud
part cloud
rain showers
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
part cloud
cloud
clear
some clouds
some clouds
clear
clear
clear
clear
some clouds
cloudy
mod rain
light rain
some clouds
clear
clear
some clouds
clear
clear
some clouds
light rain
light rain
clear
some clouds
some clouds
rain shwrs
clear
clear
clear
clear
clear
some clouds
some clouds
clear
clear
clear
some clouds
cloudy
 km/h
20
W
20
SW
35
SW
30
W
40
WNW
35
WNW
30
NW
20
W
15
W
35
SSW
25
WSW
30
WNW
25
N
20
NW
5
WNW
25
WSW
20
W
5
WSW
25
SSW
30
WSW
40
NW
15
NNE
20
E
20
SSW
25
WNW
45
NW
35
NW
30
NW
25
W
40
W
35
NW
40
NW
45
NW
35
WNW
25
WNW
10
WNW
 mm 
7
5
5
1
1
max°C
0
2
7
5
4
0
0
2
3
4
4
5
3
3
2
5
5
6
9
10
5
-2
1
5
4
3
-4
-3
0
3
-2
-3
-7
-5
-3
-2
Moonrise
8:00
8:44
9:21
9:52
10:18
10:41
11:03
11:24
11:48
12:14
12:47
1:29
Moonset
4:38
5:40
6:46
7:53
9:00
10:08
11:16
12:26
1:39
2:56
4:16
Sunrise
7:09
7:09
7:09
7:11
7:11
7:11
7:11
7:11
7:11
7:13
7:13
7:13
Sunset
4:22
4:22
4:23
4:23
4:24
4:24
4:25
4:27
4:27
4:28
4:29
4:30
Today's sea temperature in Northwest Harbor is
7.1° C
(Statistics for 20 Dec 1981-2005 – mean: 8.6 max: 10.4 min: 7.2°C)
Issued (local time): 6 am Saturday 20 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest