Surf Forecasts:
Stewart Island - Saber Reef surf forecast from 22 Sep 2026:
- Best quality surf: Monday 28 Sep, 4PM (local time) - 23ft (7.0m), 15s period, SW swell with cross-onshore winds.
- Most powerful swell: Monday 28 Sep, 10PM (local time) - 23ft (7.0m), 16s period, SW swell with 26,112 kJ wave energy.
- Next surfable swell (1★+): Friday 25 Sep, 12PM (local time) - 2ft (0.6m), 9s period with S 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 Friday (Sep 25) at 12PM. The primary swell is predicted to be 0.6m and 9s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Stewart Island - Saber Reef in the next 16 days are 7.0m 16s and forecast to arrive on Monday (Sep 28) at 10PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 6.5m 14s period and expected on Monday (Sep 28) at 4AM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12PM (Fri 25th Sep) | 2ft (0.6m) 9s |
| Best Surf | 4PM (Mon 28th Sep) | 23ft (7.0m) 15s |
| Most Powerful | 10PM (Mon 28th Sep) | 23ft (7.0m) 16s |
Table - best surf conditions forecast for Stewart Island - Saber Reef over the next 16 days.
Short Range ForecastModerate rain (total 17mm), heaviest on Tue afternoon. Very mild (max 10°C on Thu morning, min 6°C on Tue night). Winds decreasing (strong winds from the WSW on Tue afternoon, calm by Thu night). | Days 5-7 Weather SummaryHeavy rain (total 33mm), heaviest during Sat night. Very mild (max 12°C on Sat morning, min 5°C on Sun morning). Winds increasing (calm on Fri afternoon, near gales from the SW by Sun morning). | |||||||||||||||||||
Tue 22 | Wednesday 23 | Thursday 24 | Friday 25 | Saturday 26 | Sunday 27 | Monday 28 | ||||||||||||||
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) | WSW 15 | WSW 15 | E 11 | S 8 | S 8 | WSW 14 | WSW 14 | E 11 | E 11 | S 8 | ESE 15 | ESE 14 | ESE 13 | SW 15 | E 12 | ESE 12 | ESE 14 | ESE 13 | SW 15 | SW 16 |
Wave Graph  | ||||||||||||||||||||
 kJ | 0 | 0 | 9 | 108 | 66 | 0 | 0 | 9 | 9 | 69 | 72 | 113 | 139 | 805 | 76 | 49 | 79 | 69 | 20465 | 24785 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-on | glassy | cross-off | glassy | cross-off | cross-off | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 10:17PM1.87m | 10:47AM1.94m | 10:57PM1.97m | 11:24AM2.04m | 11:34PM2.08m | 11:59AM2.13m | 00:10AM2.18m | 12:34PM2.20m | 00:48AM2.26m | 1:10PM2.24m | 1:27AM2.30m | 1:49PM2.26m | 2:09AM2.31m | |||||||
Low Tide | 4:12PM0.65m | 4:30AM0.48m | 4:51PM0.53m | 5:09AM0.36m | 5:27PM0.41m | 5:45AM0.25m | 6:03PM0.30m | 6:21AM0.16m | 6:38PM0.22m | 6:58AM0.12m | 7:16PM0.16m | 7:37AM0.12m | 7:55PM0.15m | |||||||
 |  | |  | | | |  | |  |  |  |  |  | | |  | | | | |
 | — | — | 6:37 | — | — | 6:33 | — | — | 6:31 | — | — | 6:30 | — | — | 7:28 | — | — | 6:26 | — | — |
 | 6:45 | — | — | 6:45 | — | — | 6:46 | — | — | 6:49 | — | — | 6:50 | — | — | 7:51 | — | — | 6:52 | — |
mm | 4 | 5 | 2 | — | 1 | 4 | 1 | — | — | — | — | — | 1 | 23 | 2 | 1 | 4 | 2 | 1 | 4 |
Temp °C | 7 | 7 | 8 | 9 | 9 | 10 | 10 | 9 | 10 | 10 | 10 | 12 | 12 | 7 | 6 | 7 | 8 | 8 | 9 | 9 |
Feels °C | -4 | -2 | -1 | 1 | 1 | 1 | 4 | 6 | 8 | 8 | 7 | 3 | 3 | -5 | -7 | -5 | -4 | -2 | -2 | -3 |
Swell 1 Height (m) Direction Period (s) | — | WSW 15 | WSW 15 | WSW 15 | WSW 15 | — | WSW 14 | WSW 13 | WSW 12 | WSW 12 | WSW 12 | SW 12 | WSW 12 | SW 15 | E 12 | ESE 12 | ESE 14 | ESE 13 | SE 13 | ESE 13 |
| kJ | — | 14531 | 11890 | 8546 | 6408 | — | 5372 | 3210 | 1839 | 1345 | 850 | 319 | 235 | 805 | 76 | 49 | 79 | 69 | 44 | 31 |
Swell 2 Height (m) Direction Period (s) | — | — | E 11 | S 8 | S 8 | — | — | E 11 | E 11 | S 8 | S 9 | W 11 | ESE 13 | ESE 13 | WSW 21 | ESE 15 | — | — | — | — |
| kJ | — | — | 9 | 108 | 66 | — | — | 9 | 9 | 69 | 55 | 81 | 139 | 93 | 89 | 44 | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | E 16 | W 18 | W 16 | ESE 15 | ESE 14 | S 9 | S 8 | ESE 16 | ENE 8 | — | — | — | — |
| kJ | — | — | — | — | — | — | — | 5 | 25 | 46 | 72 | 113 | 14 | 5 | 25 | 6 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WSW 15 | — | — | — | — | WSW 14 | — | — | — | — | WNW 5 | WNW 8 | WNW 8 | W 7 | WSW 8 | SW 10 | WSW 14 | WSW 14 | SW 15 | SW 16 |
| kJ | 18277 | — | — | — | — | 6363 | — | — | — | — | 39 | 409 | 973 | 578 | 1166 | 3832 | 13039 | 16217 | 20465 | 24785 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 318 | 174 | 119 | 145 | 92 | 119 | 119 | 89 | 89 | 89 | 89 | 89 | 92 | 270 | 407 | 559 | 306 | 270 | 270 | 318 |
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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