Surf Forecasts:
Stewart Island - Saber Reef surf forecast from 27 Oct 2026:
- Best quality surf: Saturday 31 Oct, 4AM (local time) - 18ft (5.5m), 13s period, SW swell with cross-onshore winds.
- Most powerful swell: Saturday 31 Oct, 4AM (local time) - 18ft (5.5m), 13s period, SW swell with 8,943 kJ wave energy.
- Next surfable swell (1★+): Saturday 31 Oct, 4AM (local time) - 18ft (5.5m), 13s period with SW 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 Saturday (Oct 31) at 4AM. The primary swell is predicted to be 5.5m and 13s period with a secondary swell of 4.5m and 13s. Another secondary swell of 0.3m and 11s is also forecast. The wind is predicted to be cross-onshore as the swell arrives.
The most powerful waves expected at Stewart Island - Saber Reef in the next 16 days are 5.5m 13s and forecast to arrive on Saturday (Oct 31) at 4AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 7.0m 13s period and expected on Wednesday (Oct 28) at 4PM.
| Wave Type | Time (NZDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Sat 31st Oct) | 18ft (5.5m) 13s |
| Best Surf | 4AM (Sat 31st Oct) | 18ft (5.5m) 13s |
| Most Powerful | 4AM (Sat 31st Oct) | 18ft (5.5m) 13s |
Table - best surf conditions forecast for Stewart Island - Saber Reef over the next 16 days.
Short Range ForecastHeavy rain (total 29mm), heaviest during Wed afternoon. Very mild (max 12°C on Wed afternoon, min 7°C on Thu morning). Winds decreasing (gales from the NW on Tue night, strong winds from the WSW by Thu night). | Days 5-7 Weather SummaryModerate rain (total 19mm), heaviest on Sun night. Very mild (max 16°C on Sun morning, min 7°C on Fri afternoon). Winds increasing (light winds from the NNW on Sat night, near gales from the NW by Sun night). | |||||||||||||||||||
Tue 27 | Wednesday 28 | Thursday 29 | Friday 30 | Saturday 31 | Sunday 1 | Monday 2 | ||||||||||||||
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) | SE 11 | W 10 | W 12 | W 13 | SE 15 | SE 14 | ESE 13 | SE 11 | SE 12 | SE 12 | SW 13 | S 11 | S 10 | SW 11 | S 10 | SE 13 | ESE 13 | SW 6 | SW 12 | SW 13 |
Wave Graph  | ||||||||||||||||||||
 kJ | 5 | 0 | 0 | 0 | 8 | 8 | 18 | 20 | 23 | 23 | 7782 | 553 | 369 | 1167 | 44 | 25 | 31 | 109 | 1543 | 2254 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross-off | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-off | cross-off | cross-off | cross-on | cross-on | cross-on | glassy |
High Tide | 2:50AM2.38m | 3:09PM2.29m | 3:41AM2.35m | 4:00PM2.25m | 4:37AM2.28m | 4:56PM2.17m | 5:38AM2.19m | 5:58PM2.10m | 6:45AM2.11m | 7:07PM2.04m | 7:55AM2.06m | 8:18PM2.03m | ||||||||
Low Tide | 8:32PM0.07m | 8:59AM0.17m | 9:20PM0.08m | 9:50AM0.25m | 10:13PM0.13m | 10:45AM0.34m | 11:12PM0.21m | 11:47AM0.44m | 00:18AM0.29m | 12:56PM0.49m | 1:29AM0.33m | 2:07PM0.50m | 2:40AM0.33m | |||||||
 |  |  |  | | | | |  | |  | | |  | |  |  | | |  | |
 | — | — | 6:30 | — | — | 6:28 | — | — | 6:26 | — | — | 6:24 | — | — | 6:24 | — | — | 6:22 | — | — |
 | 8:32 | — | — | 8:35 | — | — | 8:36 | — | — | 8:37 | — | — | 8:39 | — | — | 8:40 | — | — | 8:43 | — |
mm | — | 1 | 4 | 12 | 3 | 2 | 2 | 3 | 2 | 2 | 2 | — | — | — | — | — | 14 | 1 | — | — |
Temp °C | 9 | 10 | 11 | 12 | 9 | 8 | 8 | 8 | 8 | 8 | 8 | 10 | 10 | 11 | 16 | 16 | 16 | 10 | 11 | 9 |
Feels °C | -2 | -3 | -3 | -1 | -2 | -3 | -3 | -4 | -3 | -5 | 0 | 2 | 2 | 3 | 9 | 8 | 4 | 3 | 5 | 6 |
Swell 1 Height (m) Direction Period (s) | E 9 | — | WSW 13 | WSW 14 | SE 15 | SE 14 | ESE 13 | SE 11 | SE 12 | SE 12 | SE 11 | WSW 13 | WSW 12 | SW 11 | SW 12 | SW 12 | WNW 11 | WSW 12 | SW 12 | SW 13 |
| kJ | 2 | — | 3264 | 5399 | 8 | 8 | 18 | 20 | 23 | 23 | 20 | 4635 | 3352 | 1167 | 607 | 347 | 3109 | 714 | 1543 | 2254 |
Swell 2 Height (m) Direction Period (s) | SE 11 | — | — | — | — | — | — | — | — | — | — | S 11 | S 10 | S 10 | S 10 | S 9 | SW 12 | WNW 11 | NW 11 | NW 11 |
| kJ | 5 | — | — | — | — | — | — | — | — | — | — | 553 | 369 | 117 | 44 | 14 | 358 | 441 | 258 | 134 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | SE 12 | SE 11 | SE 13 | SE 13 | SE 13 | ESE 13 | ENE 8 | ENE 8 | ENE 10 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 21 | 19 | 27 | 27 | 25 | 31 | 53 | 23 | 18 |
Wind waves Height (m) Direction Period (s) | WSW 10 | W 10 | W 12 | W 13 | WSW 13 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 13 | SW 13 | — | WNW 5 | WNW 8 | WNW 10 | NW 11 | — | SW 6 | — | — |
| kJ | 2248 | 4293 | 9986 | 15405 | 9795 | 10111 | 11422 | 12075 | 10625 | 9994 | 7782 | — | 78 | 926 | 983 | 2320 | — | 109 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 855 | 156 | 238 | 221 | 221 | 224 | 536 | 221 | 221 | 536 | 412 | 119 | 145 | 89 | 109 | 89 | 156 | 145 | 221 | 0 |
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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