Stewart Island - Saber Reef surfForecast / Southland / New Zealand

information circle48hr Weather and Surf, issued 11 pm Wednesday 20 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 4AM is: 0.5m 18s primary swell from a Southwest direction (forecast issued at 11:00pm May 20). An open ocean swell of 3.0m 14s is not directed at the surf break, a second open ocean swell of 0.9m 5s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (NZST) & DateWave HeightWave Period
Morning (21 May)2ft (0.6m)16s
Afternoon (21 May)2ft (0.6m)16s
Evening (21 May)0.5ft (0.2m)7s

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

Moderate rain (total 11mm), heaviest on Thu morning. Very mild (max 16°C on Wed night, min 9°C on Thu night). Winds decreasing (near gales from the WSW on Wed night, light winds from the WSW by Sat afternoon).

Thursday
21
Friday
22
Saturday
23
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
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
1.4
NW
11
0.5
SW
18
0.5
SW
18
0.6
SW
18
0.6
SW
16
0.6
SW
16
0.6
SW
16
0.2
E
6
0.2
ENE
7
0.2
E
8
0.3
ENE
8
0.3
ENE
8
0.2
ENE
9
0.2
ENE
8
1.6
WNW
6
0.2
S
11
0.2
S
11
0.3
S
11
0.2
S
11
3.5
WSW
12
4
SW
13
4
SW
14
4.5
SW
14
4.5
SW
15
Wave Graph
Metric surfscale
Energy kJ
0
154
152
192
216
208
208
3
5
5
13
11
7
6
179
10
10
21
9
0
4498
6627
7411
0
Wind (km/h)
20
NNE
30
N
30
NNW
50
WSW
40
W
45
W
45
W
35
WSW
30
W
25
W
20
W
20
WNW
25
WNW
35
WNW
40
WNW
45
WNW
45
WNW
45
WNW
40
W
35
W
30
WSW
30
WSW
20
WSW
20
WSW
off
off
cross-off
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross
cross
cross
cross
cross
cross
cross
cross
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
4:19AM2.25m
5:02PM2.24m
5:21AM2.17m
6:05PM2.14m
6:26AM2.10m
Low Tide
10:07PM0.30m
10:35AM0.13m
11:09PM0.37m
11:40AM0.22m
00:14AM0.42m
12:45PM0.29m
cloud
cloud
cloud
light rain
mod rain
clear
clear
part cloud
clear
clear
clear
clear
clear
cloud
part cloud
part cloud
cloud
rain showers
clear
clear
part cloud
cloud
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
8:11
8:12
8:15
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:16
5:15
5:15
4
6
1
Temp °C
13
15
16
10
10
11
11
10
10
9
9
9
9
10
11
11
12
12
12
10
10
10
9
9
8
9
10
0
1
1
1
1
2
3
4
4
3
3
3
2
3
4
4
3
3
4
4
5
Swell 1
Height (m)
Direction
Period (s)
1.4
NW
11
1.7
NW
12
2.4
NW
14
4
WNW
14
3
NW
14
1.8
NW
13
1.2
NW
13
0.8
NW
12
0.6
NW
12
3.5
WSW
11
3.5
WSW
12
3.5
WSW
12
3.5
WSW
12
3
WSW
12
2.5
WSW
12
2.5
WSW
13
0.2
S
11
0.3
S
11
0.2
S
11
0.2
WSW
23
4
SW
14
4.5
SW
14
4.5
SW
15
Energy kJ
476
822
2094
6448
3410
1179
473
217
116
3229
3413
3413
3202
3026
2210
2173
10
21
9
51
6627
7411
9033
Swell 2
Height (m)
Direction
Period (s)
0.6
WSW
11
0.5
WSW
11
0.5
SW
18
0.6
SW
18
0.6
SW
16
0.6
SW
16
0.6
SW
16
0.7
SW
16
0.4
WSW
16
0.5
NW
12
0.4
NW
11
0.3
NNW
10
0.2
ENE
8
0.2
ENE
8
0.2
ENE
8
0.2
S
11
0.4
WSW
21
0.5
WSW
20
2
WSW
18
Energy kJ
102
71
152
192
216
208
208
264
104
68
33
20
7
6
6
10
153
223
2544
Swell 3
Height (m)
Direction
Period (s)
0.4
SW
18
0.5
SW
18
0.4
WSW
11
0.2
E
13
0.4
ENE
5
0.3
E
6
0.2
E
6
0.2
E
6
0.2
ENE
7
0.2
E
8
0.3
ENE
8
0.3
ENE
8
0.2
ENE
9
Energy kJ
83
154
41
14
11
6
3
3
5
5
13
11
7
Wind waves
Height (m)
Direction
Period (s)
0.5
NE
3
0.6
NE
4
0.9
NNE
5
2.3
WSW
7
3
W
8
3
W
8
3.5
WSW
10
3.5
WSW
10
0.3
NW
11
1.6
WNW
6
2.1
WNW
7
3.5
WSW
13
3.5
WSW
12
3.5
WSW
12
3.5
WSW
12
4
SW
13
Energy kJ
4
10
37
475
946
1347
1997
2700
18
179
443
3871
3865
3899
3806
4498
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
3
1
1
2
2
4
3
4
4
4
4
3
3
4
4
4
5
5
5
5
6
Distance (km)
95
109
119
92
176
174
176
176
145
92
89
89
89
89
119
119
92
92
119
119
119
145
174
145
Best forecast wave conditions in Southland
Rating
(10 max)
1
1
3
3
4
4
4
4
3
3
5
4
4
5
5
Best forecast wave conditions in New Zealand
Rating
(10 max)
2
1
2
3
2
1
2
3
4
4
4
4
4
4
4
4
5
4
4
5
5
5
5
6
Header Global
Rating
(10 max)
4
4
4
5
5
5
5
5
5
5
5
5
4
5
5
7
7
7
6
5
5
5
5
6
  • 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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