Black Rock Harbor entrance Sea Conditions and Tide Table

Black Rock Harbor entrance 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 07:16 AM and sunset is at 04:29 PM.

Days 1–3 Weather Summary

A moderate fall of snow, heaviest on Fri night. Icy conditions (max 6°C on Thu morning, min -7°C on Thu night). Winds decreasing (fresh winds from the NNW on Thu afternoon, calm by Fri morning).

Days 4–6 Weather Summary

Moderate rain (total 14mm), heaviest on Sun night. Icy conditions (max 8°C on Mon afternoon, min -4°C on Sun morning). Winds increasing (light winds from the S on Sun night, strong winds from the W by Mon night).

Days 7–9 Weather Summary

A dusting of new snow. Freeze-thaw conditions (max 2°C on Wed afternoon, min -10°C on Fri night). Winds decreasing (fresh winds from the WSW on Wed afternoon, light winds from the WSW by Thu afternoon).

Days 10–12 Weather Summary

Mostly dry. Freeze-thaw conditions (max 3°C on Mon afternoon, min -9°C on Sat morning). Wind will be generally light.

Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Thursday
1
Friday
2
Saturday
3
Sunday
4
Monday
5
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
2:28PM2.11m
3:00AM2.10m
3:19PM2.04m
3:51AM2.12m
4:14PM1.97m
4:45AM2.16m
5:14PM1.91m
5:44AM2.20m
6:17PM1.88m
6:44AM2.26m
7:20PM1.89m
7:43AM2.32m
8:21PM1.89m
8:43AM2.34m
9:21PM1.96m
9:40AM2.40m
10:18PM2.04m
10:36AM2.43m
11:11PM2.10m
11:29AM2.41m
00:03AM2.15m
12:21PM2.36m
00:53AM2.16m
Low Tide
8:24AM0.19m
8:49PM0.06m
9:16AM0.17m
9:37PM0.08m
10:12AM0.13m
10:29PM0.09m
11:13AM0.09m
11:26PM0.09m
12:15PM0.02m
00:26AM0.07m
1:17PM-0.06m
1:26AM0.04m
2:18PM-0.15m
2:27AM0.04m
3:17PM-0.19m
3:26AM-0.02m
4:13PM-0.26m
4:24AM-0.08m
5:06PM-0.29m
5:18AM-0.11m
5:57PM-0.29m
6:12AM-0.12m
6:46PM-0.25m
Wave
height (m) 
direction
period (s) 
cloud
clear
clear
part cloud
light snow
mod snow
part cloud
part cloud
clear
cloud
cloud
heavy rain
cloud
rain showers
part cloud
part cloud
clear
part cloud
part cloud
part cloud
clear
cloud
cloud
light snow
part cloud
clear
clear
clear
clear
clear
cloud
part cloud
part cloud
cloud
cloud
part cloud
cloudy
clear
clear
some clouds
light snow
mod snow
some clouds
some clouds
clear
cloudy
cloudy
heavy rain
cloudy
rain shwrs
some clouds
some clouds
clear
some clouds
some clouds
some clouds
clear
cloudy
cloudy
light snow
some clouds
clear
clear
clear
clear
clear
cloudy
some clouds
some clouds
cloudy
cloudy
some clouds
 km/h
25
WSW
25
NNW
25
NNW
10
N
10
ESE
20
E
20
NE
5
N
10
NW
10
WNW
10
WSW
5
S
15
SW
25
W
40
W
35
WNW
35
WNW
25
W
25
WSW
30
WSW
25
WNW
10
WNW
10
W
10
SE
20
W
25
NNW
20
WNW
15
NW
15
NW
10
WNW
15
W
20
SW
20
SW
20
WSW
15
WSW
5
W
 mm 
13
1
max°C
6
5
-5
-4
-3
-2
-2
-1
-3
-1
-1
4
7
8
1
-2
-3
-2
1
2
-2
-6
-6
1
0
-3
-8
-6
-5
-7
-3
-2
-1
2
3
3
Moonrise
10:45
11:07
11:29
11:52
12:18
12:51
1:33
2:27
3:34
4:50
6:09
7:26
Moonset
10:12
11:20
12:30
1:44
3:01
4:21
5:40
6:51
7:49
8:35
9:10
Sunrise
7:16
7:16
7:16
7:16
7:16
7:16
7:18
7:18
7:18
7:18
7:18
7:18
Sunset
4:29
4:30
4:30
4:30
4:31
4:32
4:32
4:34
4:35
4:36
4:37
4:37
Today's sea temperature in Black Rock Harbor entrance is
5.1° C
(Statistics for 25 Dec 1981-2005 – mean: 7.7 max: 10.1 min: 5.5°C)
Issued (local time): 12 pm Thursday 25 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest