Sumner Island Sea Conditions and Tide Table

Sumner Island 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 08:25 AM and sunset is at 03:17 PM.

Days 1–3 Weather Summary

Mostly dry. Air temperatures will be well below freezing (max -6°C on Thu morning, min -11°C on Fri morning). Wind will be generally light.

Days 4–6 Weather Summary

Mostly dry. Extremely cold air temperatures (max -11°C on Sun morning, min -14°C on Sun night). Mainly fresh winds.

Days 7–9 Weather Summary

A heavy fall of snow, heaviest during Fri afternoon. Freeze-thaw conditions (max 1°C on Fri night, min -12°C on Wed morning). Winds increasing (calm on Thu afternoon, strong winds from the SE by Fri afternoon).

Days 10–12 Weather Summary

A moderate fall of snow, heaviest on Sun morning. Temperatures will be below freezing (max -1°C on Sat morning, min -11°C on Mon night). Mainly strong winds.

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
10:45AM4.01m
00:30AM3.40m
11:22AM4.06m
1:05AM3.46m
11:58AM4.08m
1:40AM3.49m
12:33PM4.06m
2:15AM3.49m
1:10PM4.00m
2:51AM3.50m
1:48PM3.89m
3:27AM3.51m
2:30PM3.73m
4:05AM3.54m
3:17PM3.51m
4:45AM3.61m
4:16PM3.28m
5:27AM3.70m
5:29PM3.06m
6:14AM3.83m
6:57PM2.94m
7:06AM3.97m
8:28PM2.98m
Low Tide
5:57PM-0.09m
5:38AM1.46m
6:32PM-0.16m
6:16AM1.44m
7:07PM-0.21m
6:53AM1.41m
7:41PM-0.22m
7:31AM1.39m
8:16PM-0.20m
8:11AM1.36m
8:51PM-0.13m
8:56AM1.32m
9:28PM-0.00m
9:48AM1.25m
10:06PM0.19m
10:48AM1.14m
10:48PM0.43m
11:57AM0.96m
11:36PM0.71m
1:10PM0.71m
00:33AM0.98m
2:19PM0.39m
1:38AM1.21m
Wave
height (m) 
direction
period (s) 
0.3
WNW
4
0.3
N
2
0.3
N
2
0.2
NNE
2
0.2
NNE
2
0.1
NE
2
0.1
N
2
0.1
N
2
0.1
N
2
0.3
N
2
0.4
N
3
0.3
NNE
2
0.2
NNE
2
0.3
NNE
2
0.3
N
2
0.2
NNE
2
0.2
NNE
2
0.2
NNE
2
0.2
NNE
2
0.2
N
2
0.2
N
2
0.1
N
2
0
E
2
0.1
E
1
0.6
ESE
3
1.2
SE
4
0.4
S
3
0.4
ESE
3
0.4
ENE
3
0.2
NNE
2
0.7
N
3
0.2
NNE
2
0.2
NNE
2
0.2
N
2
0.2
N
2
0.3
NNW
2
part cloud
clear
clear
clear
clear
clear
part cloud
part cloud
cloud
cloud
cloud
cloud
part cloud
cloud
cloud
cloud
clear
clear
clear
clear
clear
clear
part cloud
light snow
mod snow
heavy snow
light snow
part cloud
cloud
part cloud
light snow
light snow
light snow
light snow
part cloud
part cloud
some clouds
clear
clear
clear
clear
clear
some clouds
some clouds
cloudy
cloudy
cloudy
cloudy
some clouds
cloudy
cloudy
cloudy
clear
clear
clear
clear
clear
clear
some clouds
light snow
mod snow
heavy snow
light snow
some clouds
cloudy
some clouds
light snow
light snow
light snow
light snow
some clouds
some clouds
 km/h
20
N
25
N
20
N
20
NNE
20
NNE
15
NNE
15
NNE
15
NNE
20
NNE
25
N
30
N
25
NNE
25
NNE
25
NNE
25
N
20
NNE
20
NNE
20
NNE
25
NNE
20
N
20
NNE
15
NNE
5
NE
10
ESE
30
ESE
45
SE
25
SSE
20
E
20
E
20
NNE
45
N
15
NNE
25
NNE
20
NNE
20
NNE
25
N
 mm 
max°C
-6
-6
-8
-10
-10
-11
-9
-10
-10
-11
-11
-13
-13
-13
-13
-12
-11
-12
-10
-10
-11
-9
-9
-3
0
0
1
-1
-2
-4
-9
-9
-9
-9
-9
-10
Moonrise
8:08
9:13
9:59
10:29
10:47
10:58
11:06
11:12
11:17
11:22
11:29
11:37
Moonset
1:27
2:10
3:12
4:29
5:54
7:21
8:47
10:12
11:38
1:07
2:41
Sunrise
8:25
8:26
8:26
8:26
8:27
8:27
8:29
8:29
8:29
8:29
8:29
8:29
Sunset
3:17
3:18
3:18
3:18
3:18
3:19
3:19
3:21
3:22
3:22
3:23
3:25
Today's sea temperature in Sumner Island is
6.5° C
(Statistics for 18 Dec 1981-2005 – mean: 7.2 max: 8.8 min: 5.7°C)
Issued (local time): 8 am Thursday 18 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
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