Nummy Island, Grassy Sound Channel Sea Conditions and Tide Table

Nummy Island, Grassy Sound Channel 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 07:00 PM.

Days 1–3 Weather Summary

Light rain (total 3mm) at first, then becoming colder with a dusting of snow on Thu afternoon. Cool air temperatures (max 19°C on Wed morning, min 1°C on Thu afternoon). Mainly strong winds.

Days 4–6 Weather Summary

Light rain (total 9mm), mostly falling on Sun night. Icy conditions (max 12°C on Sun night, min -1°C on Mon night). Winds increasing (calm on Sat night, strong winds from the SSW by Sun night).

Days 7–9 Weather Summary

Heavy rain (total 21mm), heaviest during Thu afternoon. Later becoming colder with a dusting of snow on Thu night. Freeze-thaw conditions (max 7°C on Thu afternoon, min -3°C on Tue morning). Winds increasing (calm on Tue night, strong winds from the N by Thu night).

Days 10–12 Weather Summary

Mostly dry. Warm (max 20°C on Sun night, min 1°C on Fri morning). Winds decreasing (fresh winds from the NNW on Fri morning, light winds from the NW by Fri night).

Wednesday
11
Thursday
12
Friday
13
Saturday
14
Sunday
15
Monday
16
Tuesday
17
Wednesday
18
Thursday
19
Friday
20
Saturday
21
Sunday
22
Monday
23
Tuesday
24
Wednesday
25
Thu
26
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
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
Wave Height Map
High Tide
2:35PM0.91m
3:00AM1.09m
3:34PM0.90m
4:00AM1.10m
4:38PM0.93m
5:02AM1.14m
5:38PM1.00m
5:59AM1.21m
6:29PM1.10m
6:47AM1.29m
7:13PM1.21m
7:30AM1.35m
7:53PM1.32m
8:11AM1.40m
8:31PM1.41m
8:51AM1.41m
9:10PM1.48m
9:34AM1.39m
9:51PM1.51m
10:19AM1.34m
10:36PM1.51m
11:10AM1.27m
11:26PM1.48m
12:06PM1.20m
00:23AM1.42m
1:07PM1.14m
1:25AM1.36m
2:11PM1.10m
Low Tide
8:45AM0.28m
8:39PM0.33m
9:55AM0.28m
9:56PM0.32m
10:54AM0.24m
10:59PM0.27m
11:45AM0.17m
11:53PM0.19m
12:31PM0.09m
00:43AM0.11m
1:15PM0.00m
1:30AM0.02m
1:57PM-0.07m
2:17AM-0.05m
2:37PM-0.12m
3:03AM-0.11m
3:17PM-0.16m
3:48AM-0.14m
3:57PM-0.16m
4:33AM-0.14m
4:37PM-0.13m
5:19AM-0.11m
5:20PM-0.08m
6:09AM-0.05m
6:07PM0.00m
7:07AM0.04m
7:03PM0.09m
8:17AM0.10m
Wave
height (m) 
direction
period (s) 
0.9
S
4
1
SSE
5
1.3
SSE
6
1.3
SSE
7
1.1
SSE
8
0.8
SSE
8
0.6
SSE
8
1.9
S
6
1.7
SSE
8
1.1
S
7
0.7
SSE
7
0.4
SSE
6
0.7
ESE
4
1.2
SE
5
2
SSE
7
2.5
SSE
10
1.7
SSE
10
1.3
SSE
9
1.1
SE
9
0.8
SE
8
0.6
ESE
9
0.6
SE
8
0.6
SE
8
1.1
SE
8
1.1
SE
8
2
ESE
8
2.4
ESE
10
2.2
ESE
12
1.8
E
11
1.4
E
11
1.2
E
11
1.3
E
11
1.2
E
11
0.9
E
10
0.7
E
10
0.8
E
10
0.8
S
6
0.7
S
6
0.9
SSE
6
0.9
SSE
6
0.7
SSE
6
0.6
SE
6
0.7
NE
4
0.9
ENE
4
1.1
E
5
1.8
ESE
6
2.2
ESE
8
clear
cloud
part cloud
light rain
light snow
rain showers
clear
part cloud
part cloud
clear
part cloud
part cloud
part cloud
cloud
light rain
light rain
rain showers
part cloud
clear
part cloud
clear
cloud
cloud
light rain
light rain
heavy rain
light snow
clear
part cloud
part cloud
part cloud
part cloud
clear
part cloud
clear
clear
clear
part cloud
mod rain
light rain
cloud
part cloud
part cloud
part cloud
part cloud
cloud
cloud
clear
cloudy
some clouds
light rain
light snow
rain shwrs
clear
some clouds
some clouds
clear
some clouds
some clouds
some clouds
cloudy
light rain
light rain
rain shwrs
some clouds
clear
some clouds
clear
cloudy
cloudy
light rain
light rain
heavy rain
light snow
clear
some clouds
some clouds
some clouds
some clouds
clear
some clouds
clear
clear
clear
some clouds
mod rain
light rain
cloudy
some clouds
some clouds
some clouds
some clouds
cloudy
cloudy
 km/h
25
S
20
S
30
SSW
35
NW
30
NW
25
WNW
25
SSW
50
SSW
35
SW
35
WNW
20
WNW
10
NE
25
ESE
30
SE
35
S
35
WNW
30
WNW
30
WNW
30
WNW
30
WNW
10
N
10
ESE
20
SE
20
SE
20
NE
35
N
35
NNW
25
NNW
20
NW
5
NW
20
SSW
25
SSW
20
WSW
15
W
15
SSW
20
SW
15
SW
10
S
15
WSW
0
W
10
SSW
20
NNW
15
NE
25
E
25
ESE
40
ESE
40
SE
 mm 
1
1
1
5
3
1
2
4
14
1
8
3
max°C
19
18
17
11
3
3
3
6
10
7
9
9
7
11
12
11
7
6
-3
2
1
0
1
5
6
7
2
3
7
5
5
12
14
15
19
20
17
20
20
10
11
12
4
4
6
8
11
Moonrise
2:38
3:30
4:16
4:55
5:28
5:57
6:23
6:47
7:11
7:37
8:06
8:40
9:23
10:15
11:17
12:27
Moonset
11:28
12:22
1:23
2:27
3:34
4:42
5:50
7:00
8:11
9:24
10:40
11:57
1:12
2:19
3:16
Sunrise
7:16
7:15
7:13
7:11
7:11
7:09
7:07
7:05
7:05
7:03
7:01
7:00
6:58
6:56
6:54
6:54
Sunset
7:00
7:01
7:02
7:04
7:05
7:06
7:07
7:07
7:08
7:09
7:10
7:12
7:13
7:14
7:15
7:15
Today's sea temperature in Nummy Island, Grassy Sound Channel is
4.6° C
(Statistics for 11 Mar 1981-2005 – mean: 3.5 max: 6.0 min: 1.3°C)
Issued (local time): 1 am Wednesday 11 Mar 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest