Surf Forecasts:
Stewart Island - Saber Reef surf forecast from 20 Jul 2026:
- Most powerful swell: Sunday 26 Jul, 12PM (local time) - 8ft (2.4m), 13s period, SW swell with 1,817 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 2.4m 13s and forecast to arrive on Sunday (Jul 26) at 12PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 5.5m 15s period and expected on Saturday (Jul 25) at 6AM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 12PM (Sun 26th Jul) | 8ft (2.4m) 13s |
Table - best surf conditions forecast for Stewart Island - Saber Reef over the next 16 days.
Short Range ForecastModerate rain (total 13mm), heaviest on Thu afternoon. Very mild (max 12°C on Tue morning, min 9°C on Wed night). Winds decreasing (near gales from the NW on Mon night, light winds from the NW by Wed afternoon). | Days 5-7 Weather SummaryHeavy rain (total 32mm), heaviest during Thu night. Mild temperatures (max 9°C on Thu night, min 5°C on Fri night). Mainly near gales. | ||||||||||||||||||
Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | ||||||||||||||
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) | SW 13 | SW 12 | S 10 | ESE 12 | ESE 11 | SE 12 | SE 11 | SE 10 | ENE 6 | ENE 6 | ENE 6 | ESE 13 | SE 13 | ESE 12 | ESE 14 | ESE 16 | S 9 | SW 13 | SW 12 |
Wave Graph  | |||||||||||||||||||
 kJ | 2063 | 929 | 32 | 13 | 12 | 5 | 5 | 4 | 7 | 4 | 12 | 34 | 40 | 30 | 81 | 177 | 129 | 1609 | 960 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross | cross-on | cross-on | cross-off | off | cross-off | cross-off | cross | cross-off | cross-off | cross | cross-on | on | on | on | cross-on | cross-on |
High Tide | 6:17AM1.99m | 6:45PM1.93m | 7:15AM1.88m | 7:41PM1.85m | 8:18AM1.82m | 8:41PM1.80m | 9:21AM1.81m | 9:40PM1.80m | 10:19AM1.84m | 10:34PM1.84m | 11:09AM1.90m | 11:20PM1.91m | |||||||
Low Tide | 00:04AM0.43m | 12:32PM0.48m | 1:01AM0.53m | 1:31PM0.61m | 2:02AM0.60m | 2:31PM0.69m | 3:01AM0.63m | 3:30PM0.71m | 3:56AM0.61m | 4:23PM0.69m | 4:45AM0.56m | 5:10PM0.64m | |||||||
 |  | |  |  | | | |  | | | |  | | |  | |  | | |
 | — | 8:23 | — | — | 8:22 | — | — | 8:22 | — | — | 8:21 | — | — | 8:19 | — | — | 8:18 | — | — |
 | — | — | 5:24 | — | — | 5:27 | — | — | 5:28 | — | — | 5:29 | — | — | 5:30 | — | — | 5:30 | — |
mm | — | 1 | 2 | 2 | — | — | — | 4 | 4 | 9 | 1 | 2 | 11 | 2 | 2 | 4 | 1 | — | 3 |
Temp °C | 11 | 12 | 11 | 11 | 10 | 10 | 11 | 12 | 12 | 9 | 9 | 9 | 7 | 6 | 6 | 6 | 7 | 7 | 10 |
Feels °C | 0 | 2 | 3 | 5 | 4 | 7 | 5 | 5 | 4 | 4 | 4 | 5 | 0 | -3 | -3 | -2 | -2 | -3 | 2 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 12 | S 10 | ESE 12 | WSW 12 | WSW 13 | WSW 12 | WNW 9 | W 12 | WSW 12 | W 15 | W 15 | ESE 13 | WSW 15 | WSW 15 | WSW 14 | WSW 13 | SW 13 | SW 12 |
| kJ | 2063 | 929 | 32 | 13 | 2472 | 2322 | 1430 | 604 | 1320 | 1338 | 6034 | 5343 | 31 | 10809 | 7593 | 4242 | 2197 | 1609 | 960 |
Swell 2 Height (m) Direction Period (s) | ESE 12 | S 11 | ESE 12 | ESE 12 | ESE 11 | SE 12 | SE 11 | WSW 12 | ENE 6 | WSW 19 | ENE 6 | ESE 13 | SE 13 | ESE 12 | ESE 14 | ESE 16 | S 9 | W 12 | W 12 |
| kJ | 28 | 55 | 13 | 13 | 12 | 5 | 5 | 738 | 7 | 210 | 12 | 34 | 40 | 30 | 81 | 177 | 129 | 353 | 711 |
Swell 3 Height (m) Direction Period (s) | — | ESE 12 | — | — | SE 12 | E 11 | E 11 | SE 10 | SE 10 | ENE 6 | — | SE 13 | ENE 8 | S 16 | ENE 10 | ESE 13 | WNW 11 | S 9 | ESE 14 |
| kJ | — | 27 | — | — | 6 | 2 | 2 | 4 | 4 | 4 | — | 27 | 6 | 20 | 9 | 67 | 105 | 99 | 210 |
Wind waves Height (m) Direction Period (s) | WNW 7 | WNW 9 | WSW 10 | WSW 12 | — | — | NE 3 | NE 4 | NW 8 | NW 8 | NW 8 | NW 8 | WSW 16 | — | — | — | — | — | — |
| kJ | 538 | 1878 | 2605 | 2448 | — | — | 5 | 6 | 401 | 53 | 564 | 477 | 9330 | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 89 | 89 | 156 | 119 | 92 | 89 | 89 | 95 | 89 | 89 | 89 | 89 | 92 | 882 | 814 | 174 | 176 | 559 | 119 |
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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