Grassy Bay (bridge), Brooklyn Sea Conditions and Tide Table

Grassy Bay (bridge), Brooklyn 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 07:15 AM and sunset is at 04:30 PM.

Days 1–3 Weather Summary

A dusting of snow on Mon night. Freezing level rising with drizzle on Tue night. Icy conditions (max 6°C on Tue night, min -3°C on Sun night). Winds decreasing (fresh winds from the NW on Sun afternoon, light winds from the SW by Tue afternoon).

Days 4–6 Weather Summary

Light rain (total 3mm), mostly falling on Fri morning. Icy conditions (max 13°C on Fri morning, min -3°C on Fri night). Winds increasing (calm on Wed night, fresh winds from the NW by Fri afternoon).

Days 7–9 Weather Summary

Light rain (total 3mm), mostly falling on Sun morning. Freeze-thaw conditions (max 6°C on Sun afternoon, min -6°C on Mon morning). Winds increasing (calm on Sat morning, strong winds from the WNW by Sun night).

Days 10–12 Weather Summary

Mostly dry. Freeze-thaw conditions (max 4°C on Thu afternoon, min -8°C on Wed morning). Winds decreasing (fresh winds from the NW on Tue night, light winds from the WSW by Wed night).

Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Thursday
1
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
9:02AM1.73m
9:30PM1.34m
9:38AM1.70m
10:09PM1.33m
10:16AM1.66m
10:51PM1.33m
10:57AM1.62m
11:36PM1.35m
11:44AM1.57m
00:25AM1.40m
12:35PM1.52m
1:15AM1.47m
1:29PM1.48m
2:08AM1.55m
2:27PM1.43m
3:05AM1.64m
3:31PM1.41m
4:06AM1.73m
4:38PM1.41m
5:08AM1.83m
5:45PM1.45m
6:09AM1.91m
6:46PM1.51m
Low Tide
3:45PM-0.05m
3:38AM0.09m
4:23PM-0.04m
4:16AM0.11m
4:59PM-0.03m
4:54AM0.14m
5:36PM-0.02m
5:35AM0.17m
6:15PM0.00m
6:25AM0.20m
7:00PM0.01m
7:31AM0.22m
7:55PM0.02m
8:47AM0.19m
8:58PM0.00m
9:58AM0.11m
9:59PM-0.04m
11:01AM0.00m
10:58PM-0.09m
12:00PM-0.11m
11:56PM-0.13m
12:58PM-0.20m
00:53AM-0.19m
Wave
height (m) 
direction
period (s) 
0.6
SE
8
0.8
NNW
4
0.6
NW
3
0.4
ESE
10
0.4
SE
10
0.4
SE
9
0.4
SE
9
0.2
SSE
5
0.4
WSW
2
0.8
NNW
4
0.5
NNW
3
0.1
S
6
0.2
ESE
9
0.4
ESE
8
0.4
ESE
10
0.5
ESE
10
0.7
W
3
0.8
NNW
4
0.4
SE
10
0.2
ESE
10
0.4
S
3
0.5
SSE
5
0.7
WSW
3
0.9
NW
4
0.9
NW
4
0.8
NW
4
0.6
NW
4
0.5
W
3
0.8
SW
4
0.8
WSW
4
0.8
NNW
4
0.4
NNW
3
0.1
SE
11
0.5
SSW
3
0.4
SSE
6
0.4
SSE
6
clear
clear
clear
part cloud
part cloud
light snow
light snow
light snow
rain showers
clear
clear
part cloud
cloud
cloud
cloud
light rain
part cloud
clear
clear
part cloud
part cloud
rain showers
part cloud
clear
cloud
clear
part cloud
cloud
part cloud
part cloud
clear
part cloud
part cloud
clear
cloud
part cloud
clear
clear
clear
some clouds
some clouds
light snow
light snow
light snow
rain shwrs
clear
clear
some clouds
cloudy
cloudy
cloudy
light rain
some clouds
clear
clear
some clouds
some clouds
rain shwrs
some clouds
clear
cloudy
clear
some clouds
cloudy
some clouds
some clouds
clear
some clouds
some clouds
clear
cloudy
some clouds
 km/h
25
W
35
NW
30
NW
20
NW
15
WSW
20
WSW
15
S
5
SW
20
W
35
NW
20
NNW
0
NNE
15
SW
15
SW
10
SSW
25
SW
40
NW
25
NNW
10
N
10
S
20
S
20
SW
30
W
35
WNW
40
NW
35
NW
25
WNW
25
WSW
35
SW
35
WSW
30
NNW
20
NW
10
WSW
25
SW
20
SW
15
SW
 mm 
1
3
3
max°C
5
2
-1
0
2
3
1
1
6
4
3
1
1
3
7
13
10
1
-2
0
4
4
6
0
-5
-5
-5
-1
2
3
-6
-5
-4
2
4
4
Moonrise
8:50
9:27
9:58
10:24
10:47
11:09
11:31
11:55
12:22
12:55
1:38
2:32
Moonset
5:49
6:54
8:01
9:08
10:15
11:23
12:32
1:45
3:02
4:22
5:40
Sunrise
7:15
7:16
7:16
7:16
7:16
7:16
7:18
7:18
7:18
7:18
7:18
7:18
Sunset
4:30
4:30
4:31
4:32
4:32
4:34
4:34
4:35
4:36
4:37
4:37
4:38
Today's sea temperature in Grassy Bay (bridge), Brooklyn is
6.9° C
(Statistics for 21 Dec 1981-2005 – mean: 7.5 max: 9.5 min: 5.5°C)
Issued (local time): 12 pm Sunday 21 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest