Stewart Island - Saber Reef surfForecast / Southland / New Zealand

information circle48hr Weather and Surf, issued 5 am Monday 18 May 2026 NZST
Forecast update in hr  min  s Forecast update imminent
Stewart Island - Saber Reef surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Stewart Island - Saber Reef sea temperature is
13.7° C
(Which is 2.9°C warmer than normal for this time of year)

How big are the waves at Stewart Island - Saber Reef today?

The current surf forecast for Stewart Island - Saber Reef at 10AM is: 0.2m 11s primary swell from a East direction (forecast issued at 05:00am May 18). An open ocean swell of 1.8m 16s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (NZST) & DateWave HeightWave Period
Morning (18 May)0.5ft (0.2m)11s
Afternoon (18 May)0.5ft (0.2m)10s
Evening (18 May)0.5ft (0.2m)10s

Table - waves today at Stewart Island - Saber Reef. (Swell directed towards the surf break)


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Light rain (total 6mm), mostly falling on Wed night. Very mild (max 17°C on Wed night, min 8°C on Mon night). Winds increasing (light winds from the N on Tue morning, near gales from the NW by Wed night).

Monday
18
Tuesday
19
Wednesday
20
Thu
21
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
12 AM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
1
0
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
0.2
E
11
0.3
SSW
11
0.2
E
11
0.2
E
11
0.2
E
10
0.2
E
10
0.2
E
10
0.2
E
10
0.2
E
10
0.2
E
10
0.2
E
10
0.2
E
10
0.2
E
9
1.4
WSW
13
1.3
WSW
13
1.7
WNW
10
2.3
WNW
11
0.2
E
11
0.3
SW
18
2.1
WNW
10
0.5
SW
19
2
WNW
10
0.4
SW
18
0.5
SW
18
Wave Graph
Metric surfscale
Energy kJ
9
22
9
9
8
8
8
8
8
8
8
7
7
0
0
0
0
9
51
0
179
0
113
154
Wind (km/h)
20
NW
20
NW
20
NW
25
NW
25
WNW
25
WNW
25
NW
20
NNW
15
NNW
15
NW
10
N
10
N
15
NNE
15
NNE
15
NNE
15
N
15
N
15
N
15
N
10
N
10
NNE
15
NNE
25
N
35
NNW
cross-off
cross-off
cross-off
cross-off
cross
cross
cross-off
cross-off
cross-off
cross-off
off
off
off
off
off
cross-off
cross-off
off
off
off
off
off
off
cross-off
High Tide
1:30AM2.37m
2:06PM2.45m
2:23AM2.36m
3:02PM2.41m
3:20AM2.32m
4:01PM2.33m
Low Tide
7:42AM-0.03m
8:13PM0.15m
8:37AM-0.01m
9:08PM0.22m
9:34AM0.05m
10:07PM0.30m
cloud
cloud
cloud
cloud
cloud
cloud
part cloud
clear
clear
part cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
8:08
8:10
8:11
8:11
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:20
5:19
5:17
5:16
Temp °C
9
9
9
9
9
10
10
9
8
9
9
9
10
11
12
12
12
12
13
14
14
12
14
16
4
4
4
4
3
4
5
4
5
5
6
6
6
6
8
8
8
8
10
11
11
8
8
8
Swell 1
Height (m)
Direction
Period (s)
1.5
WSW
13
1.4
WSW
13
1.7
WSW
16
1.8
W
16
1
WSW
16
1.5
WSW
14
1.5
WSW
14
1.5
WSW
14
1.5
WSW
14
1.5
WSW
14
1.5
WSW
14
1.5
WSW
13
1.4
WSW
13
1.4
WSW
13
1.5
WNW
9
1.7
WNW
10
2.3
WNW
11
2.5
WNW
11
2.2
WNW
11
2.1
WNW
10
1.9
WNW
10
2
WNW
10
2
WNW
10
1.8
NW
11
Energy kJ
703
679
1550
1609
540
838
838
862
862
886
769
724
623
613
362
555
1194
1886
1102
955
755
842
809
730
Swell 2
Height (m)
Direction
Period (s)
0.5
W
18
0.7
WSW
17
0.2
E
11
0.2
E
11
0.2
E
10
0.2
E
10
0.2
E
10
1.2
WNW
7
1.1
W
7
1.1
WNW
7
1.1
WNW
8
1.1
WNW
8
1
WNW
8
1
WNW
8
1.3
WSW
13
1.2
WSW
13
1.2
WSW
13
0.2
WSW
21
1.2
WSW
12
1
WSW
12
1
WSW
12
0.9
WSW
12
0.9
WSW
12
0.6
WSW
11
Energy kJ
165
307
9
9
8
8
8
135
120
132
143
131
119
136
498
476
499
44
432
313
298
199
193
95
Swell 3
Height (m)
Direction
Period (s)
0.2
E
11
0.3
SSW
11
0.1
S
17
0.2
S
9
0.1
S
8
0.1
S
18
0.2
E
10
0.2
E
10
0.2
E
10
0.2
E
10
0.2
E
10
0.2
E
9
0.2
WSW
20
0.2
WSW
20
0.2
WSW
20
0.2
WSW
21
0.2
E
11
0.3
SW
18
0.4
SW
19
0.5
SW
19
0.4
SW
19
0.4
SW
18
0.5
SW
18
Energy kJ
9
22
6
6
1
6
8
8
8
8
7
7
37
37
38
42
9
51
90
179
93
113
154
Wind waves
Height (m)
Direction
Period (s)
1.6
W
13
1.2
WNW
6
1.2
WNW
6
1.7
WNW
7
1.6
WNW
7
1.5
WNW
7
0.4
NE
3
0.4
NE
3
0.5
NE
3
0.2
ENE
4
0.4
NE
4
0.4
N
3
0.2
NNE
3
0.4
NNE
3
0.4
NE
4
0.3
NE
4
0.4
NE
4
0.5
NNE
4
Energy kJ
835
119
123
265
254
237
2
4
6
1
3
3
1
3
4
2
3
8
Nearest Offshore or Glassy
Rating
(10 max)
3
3
3
3
4
3
3
3
3
3
3
3
3
3
2
2
3
3
3
2
1
2
1
1
Distance (km)
89
89
89
89
89
89
89
89
89
89
89
89
89
89
89
89
89
89
89
89
0
95
0
95
Best forecast wave conditions in Southland
Rating
(10 max)
3
3
3
3
4
3
3
3
3
3
3
3
3
3
2
2
3
3
3
2
1
2
1
1
Best forecast wave conditions in New Zealand
Rating
(10 max)
3
3
3
3
4
3
3
3
3
3
3
3
3
3
2
2
3
3
3
2
2
2
2
2
Header Global
Rating
(10 max)
8
6
4
4
5
7
5
4
5
4
4
4
4
4
4
4
4
4
4
4
5
4
4
5
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

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