Surf Forecasts:
Stewart Island - Saber Reef surf forecast from 1 Sep 2026:
- Best quality surf: Tuesday 8 Sep, 3PM (local time) - 7.5ft (2.3m), 9s period, SW swell with cross-offshore winds.
- Most powerful swell: Tuesday 8 Sep, 12AM (local time) - 7ft (2.2m), 12s period, SW swell with 1,347 kJ wave energy.
- Next surfable swell (1★+): Sunday 6 Sep, 3AM (local time) - 2ft (0.6m), 18s period with SSW swell.
Best Forecast Surf Conditions for Stewart Island - Saber Reef this week:
The surf forecast for Stewart Island - Saber Reef over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Sep 06) at 3AM. The primary swell is predicted to be 0.6m and 18s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Stewart Island - Saber Reef in the next 16 days are 2.2m 12s and forecast to arrive on Tuesday (Sep 08) at 12AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 6.0m 16s period and expected on Saturday (Sep 05) at 12PM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Sun 6th Sep) | 2ft (0.6m) 18s |
| Best Surf | 3PM (Tue 8th Sep) | 7.5ft (2.3m) 9s |
| Most Powerful | 12AM (Tue 8th Sep) | 7ft (2.2m) 12s |
Table - best surf conditions forecast for Stewart Island - Saber Reef over the next 16 days.
Short Range ForecastHeavy rain (total 35mm), heaviest during Thu night. Very mild (max 13°C on Thu afternoon, min 9°C on Thu night). Winds decreasing (near gales from the NW on Wed morning, moderate winds from the NW by Thu morning). | Days 5-7 Weather SummaryModerate rain (total 11mm), heaviest on Sat night. Very mild (max 11°C on Sat afternoon, min 7°C on Mon morning). Winds decreasing (near gales from the NW on Sat morning, calm by Sun afternoon). | ||||||||||||||||||
Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | ||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||
Wave Height (m) Direction Period (s) | S 12 | S 12 | S 11 | S 10 | S 10 | SSW 18 | SE 10 | SE 9 | SSE 9 | ESE 10 | SSW 18 | S 18 | SSW 18 | SSW 17 | S 16 | SSW 8 | S 7 | SSE 7 | SW 12 |
Wave Graph  | |||||||||||||||||||
 kJ | 955 | 805 | 348 | 165 | 66 | 188 | 26 | 21 | 7 | 10 | 62 | 165 | 340 | 170 | 21 | 942 | 306 | 171 | 1347 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross | cross | cross | cross-off | cross-off | cross | cross-on | cross | cross | cross | cross-off | off | glassy | cross-on | cross-on | on | cross |
High Tide | 4:00AM2.13m | 4:24PM2.05m | 4:53AM2.06m | 5:17PM1.97m | 5:55AM1.99m | 6:22PM1.92m | 7:09AM1.95m | 7:36PM1.91m | 8:27AM1.98m | 8:51PM1.97m | 9:39AM2.07m | 9:58PM2.09m | |||||||
Low Tide | 9:46PM0.33m | 10:12AM0.37m | 10:36PM0.40m | 11:07AM0.49m | 11:35PM0.47m | 12:13PM0.59m | 00:46AM0.51m | 1:29PM0.63m | 2:03AM0.47m | 2:43PM0.58m | 3:14AM0.36m | 3:48PM0.46m | |||||||
 |  | |  |  | | |  | | |  | |  |  | | | | | | |
 | — | 7:18 | — | — | 7:16 | — | — | 7:15 | — | — | 7:13 | — | — | 7:11 | — | — | 7:09 | — | — |
 | — | — | 6:19 | — | — | 6:20 | — | — | 6:21 | — | — | 6:22 | — | — | 6:23 | — | — | 6:24 | — |
mm | 1 | 6 | 6 | — | 1 | 2 | 15 | 2 | 2 | 3 | 1 | 2 | 5 | — | — | — | — | — | 2 |
Temp °C | 12 | 12 | 12 | 11 | 12 | 13 | 13 | 9 | 9 | 10 | 10 | 11 | 11 | 11 | 11 | 10 | 8 | 8 | 8 |
Feels °C | 1 | 1 | 2 | 4 | 8 | 4 | 5 | -1 | -2 | -1 | 0 | 0 | 2 | 8 | 9 | 7 | 4 | 3 | 4 |
Swell 1 Height (m) Direction Period (s) | S 12 | S 12 | WSW 14 | S 10 | WSW 14 | WSW 16 | WSW 15 | SE 9 | ENE 8 | ESE 10 | SSW 18 | S 18 | W 16 | WSW 16 | WSW 15 | WSW 14 | WSW 13 | WSW 13 | WSW 12 |
| kJ | 955 | 702 | 638 | 165 | 4120 | 5478 | 3797 | 21 | 6 | 10 | 62 | 165 | 15155 | 7675 | 5324 | 1965 | 1834 | 1321 | 904 |
Swell 2 Height (m) Direction Period (s) | WSW 16 | S 12 | S 11 | SE 12 | S 10 | S 9 | SE 10 | S 15 | SSE 9 | SSE 10 | ESE 9 | — | SSW 18 | SSW 17 | S 16 | NW 9 | NW 9 | SSE 7 | SSE 7 |
| kJ | 886 | 805 | 348 | 6 | 66 | 41 | 26 | 17 | 7 | 10 | 8 | — | 340 | 170 | 21 | 53 | 13 | 171 | 82 |
Swell 3 Height (m) Direction Period (s) | S 16 | — | SE 13 | — | ESE 11 | SSW 18 | S 8 | — | SE 11 | — | — | — | — | — | ENE 5 | — | W 17 | NW 14 | WNW 12 |
| kJ | 489 | — | 7 | — | 12 | 188 | 5 | — | 5 | — | — | — | — | — | 18 | — | 6 | 54 | 156 |
Wind waves Height (m) Direction Period (s) | WSW 12 | W 9 | W 10 | WSW 14 | NW 9 | — | NW 9 | W 14 | W 14 | W 13 | W 14 | W 16 | — | NE 4 | — | SSW 8 | S 7 | — | SW 12 |
| kJ | 5208 | 3552 | 3484 | 5019 | 88 | — | 1331 | 6383 | 7914 | 9080 | 13543 | 18624 | — | 21 | — | 942 | 306 | — | 1347 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 306 | 89 | 166 | 119 | 89 | 89 | 89 | 224 | 271 | 232 | 226 | 166 | 95 | 0 | 89 | 90 | 98 | 90 | 89 |
Best forecast wave conditions in Southland | |||||||||||||||||||
Best forecast wave conditions in New Zealand | |||||||||||||||||||
Header Global | |||||||||||||||||||
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Information about the Stewart Island - Saber Reef Surf forecast
The above surf forecast table for Stewart Island - Saber Reef provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Stewart Island - Saber Reef can be found by selecting the local surf guide option on the grey menu. Our Stewart Island - Saber Reef surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Stewart Island - Saber Reef) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Stewart Island - Saber Reef may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
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