Surf Forecasts:
Stewart Island - Saber Reef surf forecast from 11 Jun 2026:
- Best quality surf: Thursday 18 Jun, 9PM (local time) - 11ft (3.5m), 12s period, SW swell with cross-offshore winds.
- Most powerful swell: Friday 19 Jun, 12AM (local time) - 13ft (4.0m), 12s period, SW swell with 4,001 kJ wave energy.
- Next surfable swell (1★+): Thursday 18 Jun, 9PM (local time) - 11ft (3.5m), 12s 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 Thursday (Jun 18) at 9PM. The primary swell is predicted to be 3.5m and 12s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Stewart Island - Saber Reef in the next 16 days are 4.0m 12s and forecast to arrive on Friday (Jun 19) at 12AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 6.5m 17s period and expected on Monday (Jun 15) at 6AM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Thu 18th Jun) | 11ft (3.5m) 12s |
| Best Surf | 9PM (Thu 18th Jun) | 11ft (3.5m) 12s |
| Most Powerful | 12AM (Fri 19th Jun) | 13ft (4.0m) 12s |
Table - best surf conditions forecast for Stewart Island - Saber Reef over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 5mm), mostly falling on Thu afternoon. Very mild (max 15°C on Sun morning, min 10°C on Thu night). Winds decreasing (strong winds from the NW on Thu afternoon, moderate winds from the WNW by Fri afternoon). | Days 5-7 Weather SummaryHeavy rain (total 20mm), heaviest during Tue night. Very mild (max 14°C on Sun afternoon, min 8°C on Mon night). Winds increasing (light winds from the W on Mon night, gales from the NW by Tue afternoon). | ||||||||||||||||||||
Thu 11 | Friday 12 | Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | Wednesday 17 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | SSW 18 | SSW 16 | SSW 17 | SSE 9 | SSE 12 | SSE 10 | SSW 19 | S 18 | WSW 11 | WNW 10 | W 13 | SSW 18 | WSW 16 | S 16 | WNW 6 | SSW 11 | SE 13 | SE 13 | SE 13 | SW 12 | S 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 180 | 52 | 30 | 8 | 13 | 10 | 125 | 24 | 0 | 0 | 0 | 432 | 0 | 5 | 126 | 207 | 7 | 7 | 7 | 946 | 12 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | cross | cross | cross | cross | cross | cross-off | cross-off | cross | cross | cross-on | on | cross | cross | cross-off | cross-on | cross-on | cross | cross | cross |
High Tide | 9:36PM2.04m | 10:05AM2.14m | 10:31PM2.14m | 11:04AM2.26m | 11:26PM2.24m | 12:02PM2.36m | 00:21AM2.32m | 12:59PM2.43m | 1:17AM2.38m | 1:56PM2.46m | 2:12AM2.40m | 2:51PM2.44m | 3:07AM2.38m | ||||||||
Low Tide | 3:28PM0.39m | 3:54AM0.34m | 4:24PM0.32m | 4:48AM0.21m | 5:18PM0.25m | 5:42AM0.09m | 6:12PM0.19m | 6:36AM-0.01m | 7:06PM0.16m | 7:30AM-0.06m | 8:00PM0.15m | 8:25AM-0.07m | 8:54PM0.17m | 9:21AM-0.03m | |||||||
 |  |  | |  |  |  |  | | |  |  | | | | |  | | | | | |
 | — | — | 8:32 | — | — | 8:32 | — | — | 8:33 | — | — | 8:33 | — | — | 8:33 | — | — | 8:33 | — | — | 8:34 |
 | 5:04 | — | — | 5:04 | — | — | 5:04 | — | — | 5:04 | — | — | 5:04 | — | — | 5:04 | — | — | 5:04 | — | 5:04 |
mm | 3 | 2 | — | — | — | — | — | — | — | 2 | 1 | 1 | — | — | — | 1 | 15 | — | — | — | 5 |
Temp °C | 14 | 13 | 11 | 11 | 11 | 11 | 11 | 13 | 15 | 14 | 12 | 10 | 10 | 9 | 11 | 11 | 9 | 9 | 9 | 10 | 10 |
Feels °C | 6 | 8 | 6 | 6 | 7 | 5 | 5 | 4 | 5 | 5 | 2 | 3 | 4 | 5 | 0 | -2 | -2 | 0 | -1 | -1 | 1 |
Swell 1 Height (m) Direction Period (s) | SSE 11 | WSW 15 | W 14 | WSW 17 | WSW 15 | WSW 14 | WSW 13 | WSW 13 | WSW 11 | WSW 14 | — | WSW 17 | WSW 16 | WSW 14 | WSW 13 | SSW 11 | NNE 6 | WSW 12 | WSW 12 | SW 12 | S 12 |
| kJ | 81 | 4671 | 2939 | 4647 | 4287 | 3420 | 2567 | 1442 | 1334 | 1797 | — | 18122 | 9758 | 5668 | 2329 | 207 | 3 | 3199 | 2442 | 946 | 12 |
Swell 2 Height (m) Direction Period (s) | SSW 18 | SE 10 | SSE 10 | SSE 9 | SSE 12 | WSW 22 | WSW 20 | WSW 18 | WSW 16 | — | — | SSW 18 | — | S 16 | S 9 | S 13 | SE 13 | W 20 | WSW 19 | W 12 | S 12 |
| kJ | 32 | 26 | 9 | 8 | 13 | 91 | 395 | 1026 | 962 | — | — | 432 | — | 5 | 103 | 86 | 7 | 30 | 70 | 911 | 11 |
Swell 3 Height (m) Direction Period (s) | SSW 18 | SSW 16 | SSW 17 | SSE 9 | SE 13 | SSE 10 | SSW 19 | S 18 | — | — | — | — | — | — | S 12 | SSE 10 | — | SE 13 | SE 13 | WSW 16 | SE 12 |
| kJ | 180 | 52 | 30 | 8 | 7 | 10 | 125 | 24 | — | — | — | — | — | — | 27 | 33 | — | 7 | 7 | 269 | 5 |
Wind waves Height (m) Direction Period (s) | W 15 | — | — | SW 7 | NW 9 | NW 9 | NW 8 | WNW 7 | NW 8 | WNW 10 | W 13 | — | — | — | WNW 6 | W 12 | W 11 | — | — | — | WSW 11 |
| kJ | 4804 | — | — | 100 | 36 | 19 | 11 | 565 | 742 | 3510 | 7137 | — | — | — | 126 | 2738 | 5469 | — | — | — | 2660 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 95 | 156 | 92 | 89 | 89 | 89 | 89 | 89 | 95 | 89 | 174 | 221 | 90 | 95 | 89 | 89 | 318 | 145 | 145 | 221 | 119 |
Best forecast wave conditions in Southland | |||||||||||||||||||||
Best forecast wave conditions in New Zealand | |||||||||||||||||||||
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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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