Surf Forecasts:
Stewart Island - Saber Reef surf forecast from 11 Oct 2026:
- Best quality surf: Tuesday 13 Oct, 1AM (local time) - 1.5ft (0.4m), 18s period, SSW swell with offshore winds.
- Most powerful swell: Sunday 18 Oct, 4PM (local time) - 10ft (3.0m), 16s period, SW swell with 4,013 kJ wave energy.
- Next surfable swell (1★+): Tuesday 13 Oct, 1AM (local time) - 1.5ft (0.4m), 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 Tuesday (Oct 13) at 1AM. The primary swell is predicted to be 0.4m and 18s period with a secondary swell of 0.4m and 7s. 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 3.0m 16s and forecast to arrive on Sunday (Oct 18) at 4PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 4.0m 14s period and expected on Monday (Oct 19) at 1AM.
| Wave Type | Time (NZDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Tue 13th Oct) | 1.5ft (0.4m) 18s |
| Best Surf | 1AM (Tue 13th Oct) | 1.5ft (0.4m) 18s |
| Most Powerful | 4PM (Sun 18th Oct) | 10ft (3.0m) 16s |
Table - best surf conditions forecast for Stewart Island - Saber Reef over the next 16 days.
Short Range ForecastLight rain (total 7mm), mostly falling on Mon night. Very mild (max 14°C on Mon morning, min 8°C on Tue night). Mainly strong winds. | Days 5-7 Weather SummaryModerate rain (total 14mm), heaviest on Wed night. Mild temperatures (max 9°C on Wed afternoon, min 6°C on Wed night). Winds decreasing (strong winds from the S on Thu night, light winds from the SW by Fri afternoon). | |||||||||||||||||||
Sun 11 | Monday 12 | Tuesday 13 | Wednesday 14 | Thursday 15 | Friday 16 | Saturday 17 | ||||||||||||||
PM | 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) | E 8 | WSW 13 | E 8 | S 20 | SSW 18 | ENE 7 | WSW 14 | ENE 7 | WSW 13 | WSW 13 | SW 12 | SW 11 | S 6 | SSW 8 | S 9 | SSW 13 | SSW 12 | SW 12 | SW 12 | SW 12 |
Wave Graph  | ||||||||||||||||||||
 kJ | 46 | 0 | 33 | 30 | 113 | 37 | 0 | 5 | 0 | 0 | 614 | 382 | 141 | 828 | 792 | 2981 | 1763 | 1818 | 1628 | 1396 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | off | cross-off | off | cross-off | cross-on | cross | cross-off | cross-off | cross | cross-on | on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross |
High Tide | 2:35AM2.29m | 2:52PM2.22m | 3:15AM2.22m | 3:30PM2.14m | 3:55AM2.13m | 4:09PM2.04m | 4:39AM2.02m | 4:52PM1.94m | 5:26AM1.91m | 5:41PM1.83m | 6:20AM1.81m | 6:37PM1.74m | ||||||||
Low Tide | 8:18PM0.13m | 8:40AM0.19m | 8:58PM0.19m | 9:20AM0.31m | 9:38PM0.29m | 10:01AM0.44m | 10:20PM0.41m | 10:45AM0.58m | 11:07PM0.54m | 11:35AM0.70m | 00:00AM0.65m | 12:33PM0.80m | 1:02AM0.72m | |||||||
 |  |  |  |  |  |  | | | |  | | |  | | |  | | |  | |
 | — | — | 7:00 | — | — | 6:58 | — | — | 6:56 | — | — | 6:54 | — | — | 6:52 | — | — | 6:50 | — | — |
 | 8:09 | — | — | 8:10 | — | — | 8:13 | — | — | 8:14 | — | — | 8:15 | — | — | 8:16 | — | — | 8:19 | — |
mm | — | — | — | — | 4 | 1 | 2 | — | — | — | 11 | 1 | — | 2 | — | — | — | — | — | — |
Temp °C | 13 | 12 | 14 | 14 | 14 | 14 | 12 | 9 | 9 | 9 | 8 | 8 | 9 | 8 | 8 | 8 | 8 | 9 | 9 | 10 |
Feels °C | 5 | 9 | 7 | 5 | 9 | 6 | 7 | 6 | 2 | 1 | 0 | 1 | 2 | -1 | 1 | 1 | 3 | 2 | 2 | 3 |
Swell 1 Height (m) Direction Period (s) | WSW 13 | WSW 13 | WSW 16 | WSW 14 | W 17 | ENE 7 | WSW 14 | WSW 13 | WSW 13 | WSW 13 | SW 12 | W 15 | WSW 14 | WSW 13 | SW 10 | SSW 13 | SSW 12 | SW 12 | SW 12 | WSW 12 |
| kJ | 427 | 302 | 4272 | 3801 | 6103 | 10 | 4623 | 2732 | 1708 | 1170 | 614 | 1102 | 1605 | 799 | 639 | 2981 | 1763 | 1258 | 1628 | 289 |
Swell 2 Height (m) Direction Period (s) | E 8 | W 6 | E 8 | ENE 8 | ENE 7 | ENE 7 | NW 9 | ENE 7 | WSW 18 | WSW 18 | W 12 | SW 11 | E 7 | E 7 | WSW 12 | WSW 12 | E 8 | S 10 | E 8 | WSW 19 |
| kJ | 46 | 60 | 33 | 20 | 17 | 37 | 593 | 5 | 34 | 31 | 102 | 382 | 117 | 53 | 522 | 242 | 22 | 230 | 5 | 37 |
Swell 3 Height (m) Direction Period (s) | WSW 19 | WSW 18 | — | S 20 | SSW 18 | — | WNW 11 | — | — | WSW 18 | WSW 16 | S 15 | — | S 15 | E 9 | E 9 | — | E 8 | E 8 | E 8 |
| kJ | 74 | 280 | — | 30 | 113 | — | 210 | — | — | 31 | 103 | 4 | — | 4 | 52 | 53 | — | 12 | 5 | 1 |
Wind waves Height (m) Direction Period (s) | WNW 8 | — | — | WNW 8 | NW 8 | W 16 | — | — | ESE 5 | ESE 6 | ESE 7 | SE 6 | S 6 | SSW 8 | S 9 | — | — | SW 12 | SW 12 | SW 12 |
| kJ | 720 | — | — | 709 | 403 | 6449 | — | — | 66 | 179 | 307 | 296 | 141 | 828 | 792 | — | — | 1818 | 913 | 1396 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 0 | 92 | 89 | 0 | 145 | 0 | 94 | 89 | 90 | 119 | 270 | 363 | 363 | 94 | 176 | 363 | 90 | 92 | 145 | 176 |
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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