Brant Rock, Green Harbor River Sea Conditions and Tide Table

Brant Rock, Green Harbor River 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 07:05 AM and sunset is at 04:12 PM.

Days 1–3 Weather Summary

Moderate rain (total 10mm) heaviest on Fri morning, then becoming colder with a dusting of snow on Fri night. Icy conditions (max 14°C on Fri morning, min -2°C on Fri night). Winds increasing (light winds from the S on Thu morning, near gales from the S by Fri morning).

Days 4–6 Weather Summary

Mostly dry. Icy conditions (max 7°C on Sun morning, min -5°C on Sun night). Winds decreasing (strong winds from the WNW on Sun night, light winds from the W by Mon night).

Days 7–9 Weather Summary

Moderate rain (total 11mm), heaviest on Thu night. Freeze-thaw conditions (max 13°C on Fri afternoon, min -5°C on Wed afternoon). Winds increasing (light winds from the NW on Wed night, strong winds from the SW by Thu night).

Days 10–12 Weather Summary

Light rain (total 7mm), mostly falling on Sun night. Freeze-thaw conditions (max 6°C on Mon morning, min -1°C on Mon night). Winds increasing (calm on Sun night, fresh winds from the NNW by Mon night).

Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
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
10:02AM2.78m
10:39PM2.39m
10:41AM2.79m
11:17PM2.39m
11:18AM2.80m
11:54PM2.40m
11:56AM2.82m
00:32AM2.41m
12:35PM2.83m
1:11AM2.43m
1:16PM2.83m
1:52AM2.47m
1:59PM2.81m
2:36AM2.53m
2:45PM2.78m
3:22AM2.60m
3:36PM2.72m
4:12AM2.68m
4:32PM2.66m
5:04AM2.78m
5:31PM2.61m
5:59AM2.90m
6:32PM2.59m
6:56AM3.02m
Low Tide
4:24PM0.20m
4:25AM0.53m
5:03PM0.18m
5:03AM0.52m
5:41PM0.16m
5:43AM0.51m
6:20PM0.14m
6:22AM0.49m
6:59PM0.12m
7:04AM0.47m
7:40PM0.11m
7:48AM0.45m
8:23PM0.11m
8:35AM0.41m
9:08PM0.12m
9:27AM0.37m
9:56PM0.14m
10:23AM0.30m
10:46PM0.18m
11:21AM0.22m
11:40PM0.20m
12:21PM0.10m
00:36AM0.21m
Wave
height (m) 
direction
period (s) 
0.2
ENE
16
0.4
SSE
3
0.9
SSE
4
1.8
SSE
5
1.6
SSE
6
1.2
W
4
0.9
NW
4
0.4
E
12
0.7
S
3
0.7
SW
4
1
NW
4
1.1
NW
5
1.9
NNW
6
1.8
N
6
0.6
NNE
6
0.7
SSW
3
1.1
SSW
4
0.9
WNW
4
1.9
NNW
6
1.8
NNW
6
0.9
NNE
7
0.6
NNE
6
0.5
SSW
3
0.9
S
4
1.2
SSW
4
0.7
WSW
4
0.8
NNW
4
0.7
N
4
0.4
NNE
5
0.4
NE
5
0.2
ENE
5
0.3
SSE
2
0.2
SSE
2
0.1
E
8
0.2
NNW
2
1.6
NNE
6
clear
clear
rain showers
mod rain
light rain
snow showers
clear
part cloud
part cloud
clear
part cloud
clear
clear
clear
part cloud
cloud
part cloud
part cloud
clear
clear
clear
clear
cloud
mod rain
light rain
clear
part cloud
part cloud
part cloud
cloud
cloud
cloud
mod rain
cloud
rain showers
part cloud
clear
clear
rain shwrs
mod rain
light rain
snow shwrs
clear
some clouds
some clouds
clear
some clouds
clear
clear
clear
some clouds
cloudy
some clouds
some clouds
clear
clear
clear
clear
cloudy
mod rain
light rain
clear
some clouds
some clouds
some clouds
cloudy
cloudy
cloudy
mod rain
cloudy
rain shwrs
some clouds
 km/h
10
S
20
S
30
S
55
SSE
25
WSW
40
WSW
30
WNW
10
WSW
30
SSW
30
WSW
35
WNW
35
WNW
40
NW
35
NW
15
W
30
SW
40
WSW
35
W
40
NW
35
NW
15
NW
20
SW
25
SW
35
SSW
40
SW
30
W
25
NW
15
NNW
10
ENE
10
SW
5
S
15
S
10
SSE
5
NW
15
NNW
30
NNW
 mm 
1
6
3
9
2
6
1
max°C
4
6
13
14
11
1
2
3
6
7
3
-1
-4
-4
-3
2
1
4
-4
-4
-5
1
2
8
11
13
7
2
3
3
4
4
4
6
6
2
Moonrise
6:08
7:06
7:58
8:42
9:19
9:48
10:14
10:36
10:57
11:18
11:40
12:06
Moonset
2:45
3:32
4:27
5:30
6:36
7:44
8:52
10:00
11:09
12:20
1:34
Sunrise
7:05
7:05
7:05
7:07
7:07
7:07
7:07
7:09
7:09
7:09
7:09
7:09
Sunset
4:12
4:13
4:13
4:13
4:14
4:15
4:15
4:15
4:15
4:16
4:17
4:19
Today's sea temperature in Brant Rock, Green Harbor River is
6.6° C
(Statistics for 18 Dec 1981-2005 – mean: 7.6 max: 10.0 min: 5.7°C)
Issued (local time): 12 pm Thursday 18 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest