Surf Forecasts:
Stewart Island - Saber Reef surf forecast from 11 Jul 2026:
- Best quality surf: Friday 17 Jul, 9PM (local time) - 26ft (8.0m), 17s period, SW swell with cross-onshore winds.
- Most powerful swell: Saturday 18 Jul, 12AM (local time) - 33ft (10.0m), 19s period, SW swell with 68,979 kJ wave energy.
- Next surfable swell (1★+): Monday 13 Jul, 3PM (local time) - 3.5ft (1.1m), 6s period with ENE 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 Monday (Jul 13) at 3PM. The primary swell is predicted to be 1.1m and 6s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Stewart Island - Saber Reef in the next 16 days are 10.0m 19s and forecast to arrive on Saturday (Jul 18) at 12AM. 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 Friday (Jul 17) at 6PM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3PM (Mon 13th Jul) | 3.5ft (1.1m) 6s |
| Best Surf | 9PM (Fri 17th Jul) | 26ft (8.0m) 17s |
| Most Powerful | 12AM (Sat 18th Jul) | 33ft (10.0m) 19s |
Table - best surf conditions forecast for Stewart Island - Saber Reef over the next 16 days.
Short Range ForecastLight rain (total 4mm), mostly falling on Mon afternoon. Very mild (max 13°C on Mon night, min 7°C on Sun night). Winds increasing (light winds from the NNE on Sun afternoon, strong winds from the NW by Mon night). | Days 4-6 Weather SummaryHeavy rain (total 22mm), heaviest during Tue afternoon. Very mild (max 13°C on Tue morning, min 9°C on Wed afternoon). Winds increasing (moderate winds from the W on Wed morning, near gales from the WNW by Wed night). | ||||||||||||||||||||
Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | |||||||||||||||
AM | 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) | SW 16 | E 10 | E 10 | E 10 | E 10 | E 9 | E 9 | ENE 6 | E 8 | E 8 | SSW 21 | SSW 20 | SSW 18 | E 13 | E 12 | E 12 | ESE 16 | E 15 | ESE 14 | ESE 16 | SW 19 |
Wave Graph  | |||||||||||||||||||||
 kJ | 5335 | 70 | 48 | 29 | 29 | 27 | 14 | 90 | 55 | 32 | 45 | 75 | 32 | 55 | 75 | 49 | 51 | 115 | 118 | 137 | 68979 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-off | cross-off | off | off | off | off | cross-off | cross-off | cross-off | cross-off | cross-on | cross-on | cross | cross-on | cross-on | cross | cross-off | cross-on | cross-on |
High Tide | 9:48AM2.10m | 10:12PM2.09m | 10:53AM2.22m | 11:13PM2.21m | 11:53AM2.33m | 00:10AM2.32m | 12:50PM2.41m | 1:05AM2.40m | 1:43PM2.45m | 1:58AM2.45m | 2:34PM2.44m | 2:49AM2.44m | 3:24PM2.39m | ||||||||
Low Tide | 4:05PM0.42m | 4:32AM0.24m | 5:04PM0.33m | 5:29AM0.10m | 6:00PM0.23m | 6:25AM-0.02m | 6:53PM0.16m | 7:18AM-0.10m | 7:45PM0.11m | 8:10AM-0.12m | 8:35PM0.10m | 9:01AM-0.08m | 9:26PM0.14m | ||||||||
 | |  | |  |  |  |  | |  |  |  | | | | | | | | |  | |
 | 8:32 | — | — | 8:32 | — | — | 8:30 | — | — | 8:30 | — | — | 8:30 | — | — | 8:29 | — | — | 8:27 | — | — |
 | — | 5:15 | — | — | 5:16 | — | — | 5:16 | — | — | 5:17 | — | — | 5:19 | — | — | 5:20 | — | — | 5:21 | — |
mm | — | — | — | — | — | — | — | 4 | — | 5 | 13 | 2 | — | — | 1 | 1 | — | — | 4 | 2 | — |
Temp °C | 11 | 11 | 9 | 9 | 10 | 8 | 10 | 12 | 13 | 13 | 12 | 11 | 10 | 9 | 10 | 11 | 11 | 11 | 11 | 8 | 9 |
Feels °C | 8 | 7 | 5 | 5 | 7 | 3 | 6 | 4 | 4 | 3 | 3 | 4 | 3 | 2 | -1 | 2 | 3 | 3 | -1 | -5 | -4 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 16 | WSW 15 | WSW 14 | WSW 14 | WSW 13 | WSW 12 | WNW 11 | WSW 13 | WSW 16 | ENE 8 | ENE 9 | W 15 | WSW 15 | E 12 | E 12 | E 13 | E 15 | ESE 14 | ESE 16 | ESE 16 |
| kJ | 5335 | 4361 | 2881 | 2053 | 1614 | 1309 | 451 | 1134 | 225 | 751 | 23 | 27 | 6271 | 5387 | 48 | 49 | 29 | 115 | 118 | 137 | 206 |
Swell 2 Height (m) Direction Period (s) | E 10 | E 10 | E 10 | E 10 | E 10 | E 9 | NW 9 | WSW 12 | WSW 18 | E 8 | SSW 21 | SSW 20 | ENE 7 | E 13 | E 12 | ESE 18 | ESE 16 | — | — | — | — |
| kJ | 71 | 70 | 48 | 29 | 29 | 27 | 103 | 237 | 360 | 32 | 45 | 75 | 10 | 55 | 75 | 30 | 51 | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | S 20 | — | — | — | — | E 9 | WSW 20 | E 8 | WSW 24 | S 17 | ENE 9 | SSW 18 | E 13 | — | SE 18 | — | — | — | — | — |
| kJ | — | 30 | — | — | — | — | 14 | 78 | 55 | 54 | 6 | 42 | 32 | 31 | — | 12 | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | NNW 3 | — | NE 3 | NE 4 | ENE 6 | NW 10 | WNW 11 | WNW 14 | W 15 | W 15 | WSW 15 | W 14 | W 13 | WSW 13 | W 13 | W 10 | WSW 13 | SW 19 |
| kJ | — | — | — | 4 | — | 4 | 31 | 90 | 1192 | 2202 | 9146 | 9458 | 8242 | 3900 | 5180 | 5480 | 4462 | 4584 | 4335 | 8981 | 68979 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 89 | 89 | 89 | 89 | 89 | 94 | 94 | 0 | 95 | 89 | 92 | 92 | 145 | 145 | 119 | 166 | 119 | 92 | 156 | 226 | 310 |
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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