Surf Forecasts:
Stewart Island - Saber Reef surf forecast from 20 Oct 2026:
- Most powerful swell: Thursday 22 Oct, 10PM (local time) - 5ft (1.5m), 12s period, SW swell with 594 kJ wave energy.
Best Forecast Surf Conditions for Stewart Island - Saber Reef this week:
The most powerful waves expected at Stewart Island - Saber Reef in the next 16 days are 1.5m 12s and forecast to arrive on Thursday (Oct 22) at 10PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 5.5m 16s period and expected on Sunday (Oct 25) at 7AM.
| Wave Type | Time (NZDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 10PM (Thu 22nd Oct) | 5ft (1.5m) 12s |
Table - best surf conditions forecast for Stewart Island - Saber Reef over the next 16 days.
Short Range ForecastModerate rain (total 13mm), heaviest on Wed night. Very mild (max 14°C on Fri morning, min 11°C on Tue afternoon). Winds decreasing (near gales from the NW on Wed night, fresh winds from the W by Thu afternoon). | Days 5-7 Weather SummaryHeavy rain (total 45mm), heaviest during Sun night. Very mild (max 16°C on Mon morning, min 9°C on Sun afternoon). Winds increasing (calm on Sun afternoon, gales from the NW by Mon morning). | |||||||||||||||||||
Tue 20 | Wednesday 21 | Thursday 22 | Friday 23 | Saturday 24 | Sunday 25 | Monday 26 | ||||||||||||||
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) | S 9 | S 10 | S 10 | S 23 | SW 21 | W 10 | W 10 | SSW 20 | WSW 16 | SSW 17 | SSW 19 | WSW 14 | W 9 | SSW 20 | W 16 | WSW 14 | SE 13 | ESE 5 | SE 7 | SE 7 |
Wave Graph  | ||||||||||||||||||||
 kJ | 56 | 30 | 7 | 10 | 17 | 0 | 0 | 38 | 0 | 101 | 207 | 0 | 0 | 79 | 0 | 0 | 7 | 38 | 465 | 279 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross | cross | cross-off | cross | cross | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross | cross-on | cross-off | cross-off | cross-off | cross |
High Tide | 9:41PM1.75m | 10:17AM1.82m | 10:30PM1.84m | 11:00AM1.91m | 11:13PM1.95m | 11:40AM2.02m | 11:54PM2.07m | 12:18PM2.12m | 00:35AM2.19m | 12:58PM2.21m | 1:17AM2.29m | 1:39PM2.27m | 2:02AM2.36m | |||||||
Low Tide | 4:03AM0.61m | 4:29PM0.65m | 4:47AM0.50m | 5:10PM0.53m | 5:28AM0.38m | 5:48PM0.40m | 6:08AM0.27m | 6:26PM0.28m | 6:48AM0.18m | 7:06PM0.17m | 7:29AM0.13m | 7:48PM0.10m | ||||||||
 |  |  |  |  |  | | | | |  | | |  |  |  |  |  | |  | |
 | — | — | 6:43 | — | — | 6:41 | — | — | 6:39 | — | — | 6:37 | — | — | 6:35 | — | — | 6:33 | — | — |
 | 8:22 | — | — | 8:23 | — | — | 8:25 | — | — | 8:27 | — | — | 8:29 | — | — | 8:30 | — | — | 8:31 | — |
mm | — | — | — | — | 9 | 4 | — | — | — | — | — | — | — | 2 | 9 | 11 | 21 | 2 | 11 | 3 |
Temp °C | 11 | 12 | 12 | 13 | 12 | 12 | 12 | 13 | 14 | 14 | 13 | 14 | 14 | 14 | 13 | 9 | 15 | 16 | 14 | 12 |
Feels °C | 1 | 2 | 4 | 4 | 1 | 4 | 6 | 5 | 6 | 5 | 4 | 2 | 2 | 4 | 5 | 6 | 6 | 4 | 2 | 2 |
Swell 1 Height (m) Direction Period (s) | SW 14 | WSW 13 | WSW 13 | W 22 | SW 21 | — | WSW 12 | WSW 15 | WSW 16 | WSW 15 | WSW 19 | WSW 14 | WSW 22 | WSW 18 | W 16 | WSW 14 | WSW 14 | WSW 13 | WNW 11 | NW 11 |
| kJ | 2590 | 1599 | 2763 | 10 | 17 | — | 320 | 1809 | 3636 | 3009 | 657 | 2826 | 92 | 1302 | 9376 | 3075 | 2129 | 1134 | 3229 | 754 |
Swell 2 Height (m) Direction Period (s) | S 9 | S 10 | S 10 | S 23 | — | — | W 24 | WSW 19 | — | SSW 17 | SSW 19 | WSW 18 | — | SSW 20 | NW 10 | WNW 10 | WNW 10 | NW 10 | WSW 12 | WSW 12 |
| kJ | 56 | 30 | 7 | 10 | — | — | 11 | 391 | — | 101 | 36 | 705 | — | 79 | 384 | 637 | 298 | 281 | 668 | 598 |
Swell 3 Height (m) Direction Period (s) | — | — | W 24 | — | — | — | — | SSW 20 | — | SSW 21 | SSW 19 | — | — | — | — | — | SE 13 | ESE 5 | SE 6 | SE 12 |
| kJ | — | — | 11 | — | — | — | — | 38 | — | 45 | 207 | — | — | — | — | — | 7 | 38 | 167 | 5 |
Wind waves Height (m) Direction Period (s) | WNW 7 | WNW 8 | WNW 7 | W 13 | WNW 8 | W 10 | W 10 | WNW 9 | WNW 8 | WNW 8 | W 14 | NW 8 | W 9 | WNW 11 | W 16 | — | — | E 5 | SE 7 | SE 7 |
| kJ | 577 | 1385 | 490 | 3794 | 2269 | 2450 | 1233 | 320 | 865 | 965 | 5273 | 846 | 3593 | 4505 | 6584 | — | — | 102 | 465 | 279 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 145 | 92 | 92 | 145 | 89 | 119 | 145 | 89 | 89 | 145 | 89 | 89 | 145 | 89 | 95 | 90 | 90 | 89 | 119 | 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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