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 05:43 AM and sunset is at 08:24 PM.

Days 1–3 Weather Summary

Heavy rain (total 68mm), heaviest during Mon night. Warm air temperatures (max 27°C on Tue afternoon, min 22°C on Sun morning). Wind will be generally light.

Days 4–6 Weather Summary

Moderate rain (total 15mm), heaviest on Fri night. Very warm air temperatures (max 32°C on Thu afternoon, min 23°C on Fri night). Winds increasing (light winds from the WSW on Wed morning, fresh winds from the W by Fri night).

Days 7–9 Weather Summary

Light rain (total 2mm), mostly falling on Sat afternoon. Warm (max 28°C on Sun afternoon, min 23°C on Mon afternoon). Wind will be generally light.

Days 10–12 Weather Summary

Some drizzle, heaviest during Wed night. Warm (max 31°C on Thu afternoon, min 23°C on Tue morning). Wind will be generally light.

Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sunday
20
Monday
21
Tuesday
22
Wednesday
23
Thursday
24
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
10:30AM1.22m
10:37PM1.45m
11:15AM1.25m
11:24PM1.41m
12:04PM1.30m
00:14AM1.36m
12:54PM1.34m
1:08AM1.30m
1:46PM1.38m
2:04AM1.23m
2:40PM1.42m
3:04AM1.18m
3:39PM1.44m
4:10AM1.14m
4:42PM1.47m
5:19AM1.15m
5:46PM1.51m
6:25AM1.18m
6:47PM1.55m
7:23AM1.24m
7:41PM1.58m
8:16AM1.29m
8:31PM1.58m
Low Tide
4:43PM0.11m
5:19AM-0.05m
5:26PM0.12m
5:57AM-0.04m
6:14PM0.15m
6:39AM-0.01m
7:10PM0.18m
7:27AM0.02m
8:18PM0.20m
8:24AM0.06m
9:31PM0.19m
9:28AM0.08m
10:39PM0.15m
10:32AM0.08m
11:41PM0.09m
11:33AM0.06m
00:39AM0.02m
12:32PM0.04m
1:35AM-0.03m
1:29PM0.02m
2:28AM-0.07m
2:24PM0.01m
3:17AM-0.10m
Wave
height (m) 
direction
period (s) 
0.5
SSE
6.0
0.5
SE
6.0
0.5
SE
6.0
0.4
ESE
6.0
0.6
E
6.0
0.7
SSE
4.0
0.5
SE
5.0
0.5
SSE
5.0
0.6
SSE
5.0
0.5
SSE
5.0
0.6
SSE
6.0
0.6
SSE
5.0
0.8
SSE
6.0
0.7
S
6.0
0.7
S
6.0
0.6
S
6.0
0.6
S
6.0
0.5
S
6.0
0.4
ESE
8.0
0.5
S
6.0
0.4
ESE
8.0
0.4
ESE
8.0
0.4
ESE
8.0
0.4
ESE
9.0
0.9
ENE
4.0
0.9
ENE
5.0
0.9
ESE
5.0
1.1
ESE
6.0
1.1
ESE
6.0
1
ESE
6.0
0.9
SSE
6.0
1.2
SSE
9.0
0.9
SE
8.0
0.7
SE
7.0
0.7
SE
7.0
0.9
S
4.0
part cloud
part cloud
clear
clear
rain showers
thunderstorm
light rain
thunderstorm
thunderstorm
clear
clear
clear
clear
clear
clear
part cloud
cloud
thunderstorm
part cloud
thunderstorm
clear
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
thunderstorm
clear
clear
clear
some clouds
some clouds
clear
clear
rain shwrs
risk tstorm
light rain
risk tstorm
risk tstorm
clear
clear
clear
clear
clear
clear
some clouds
cloudy
risk tstorm
some clouds
risk tstorm
clear
clear
some clouds
some clouds
some clouds
clear
clear
clear
clear
clear
clear
clear
risk tstorm
clear
clear
clear
 km/h
10
E
10
ESE
10
SSE
10
S
20
SSE
15
SSW
10
SW
15
S
10
SW
10
SW
15
S
10
SSW
15
WSW
10
WSW
10
WSW
10
W
10
W
10
WNW
10
W
5
SW
5
WSW
10
NNE
10
SSE
10
N
30
ENE
20
ENE
20
ESE
20
E
25
ESE
10
SSE
5
SE
10
W
10
W
10
W
15
SW
20
SSW
 mm 
1
61
1
3
2
15
2
1
max°C
24
25
24
25
26
25
25
27
27
27
28
28
27
32
32
30
32
31
25
26
27
27
28
27
24
24
23
24
24
25
26
30
29
29
31
30
Moonrise
10:28
10:53
11:17
11:41
12:08
12:38
1:16
2:02
3:00
4:07
5:19
Moonset
8:26
9:35
10:44
11:54
1:05
2:18
3:34
4:50
6:02
7:05
7:57
8:38
Sunrise
5:43
5:43
5:45
5:46
5:46
5:47
5:48
5:48
5:50
5:50
5:50
5:52
Sunset
8:24
8:23
8:23
8:22
8:22
8:22
8:22
8:21
8:20
8:19
8:19
8:17
Today's sea temperature in Nummy Island, Grassy Sound Channel is 24.9 °C (Statistics for 13 Jul 1981-2005 – mean: 22.5 max: 24.1 min: 19.7°C)
Issued (local time): 1 am Sunday 13 Jul 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest