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Stewart Island - Saber Reef Surf Forecast
/ Southland (9 surf breaks) /
Surf Forecasts:
Stewart Island - Saber Reef surfForecast / Southland / New Zealand
16 Day Weather and Surf, issued 5 am Monday 18 May 2026 NZSTForecast update in hr min s Forecast update imminent
Stewart Island - Saber Reef surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Stewart Island - Saber Reef sea temperature is
13.7° C
(Which is 2.9°C warmer than normal for this time of year)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 Wednesday (May 20) at 3PM. The primary swell is predicted to be 0.5m and 19s 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 3.5m 14s and forecast to arrive on Saturday (May 23) at 3PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 4.0m 11s period and expected on Thursday (May 21) at 6AM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3PM (Wed 20th May) | 1.5ft (0.5m) 19s |
| Best Surf | 9PM (Sat 23rd May) | 11ft (3.5m) 14s |
| Most Powerful | 3PM (Sat 23rd May) | 11ft (3.5m) 14s |
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 6mm), mostly falling on Wed night. Very mild (max 17°C on Wed night, min 8°C on Mon night). Winds increasing (light winds from the N on Tue morning, near gales from the NW by Wed night). | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Sat morning. Very mild (max 12°C on Fri night, min 8°C on Thu night). Mainly strong winds. | ||||||||||||||||||||
Monday 18 | Tuesday 19 | Wednesday 20 | Thursday 21 | Friday 22 | Saturday 23 | Sunday 24 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
E 11 | E 10 | E 10 | E 10 | E 9 | WNW 10 | SW 18 | SW 19 | SW 18 | SW 16 | SW 16 | SW 12 | SW 12 | SW 11 | SW 13 | SW 12 | SW 14 | SW 14 | SSW 15 | SSW 14 | SSW 13 | |
9 | 8 | 8 | 8 | 7 | 0 | 51 | 179 | 154 | 216 | 208 | 1111 | 1600 | 1213 | 290 | 2310 | 5152 | 5140 | 2029 | 2460 | 1939 | |
Wind (km/h) | |||||||||||||||||||||
cross-off | cross | cross-off | off | off | cross-off | off | off | cross-off | cross-on | cross-on | cross-off | cross | cross | cross | cross-on | cross-on | cross-on | off | off | cross-off | |
High Tide | 2:06PM2.45m | 2:23AM2.36m | 3:02PM2.41m | 3:20AM2.32m | 4:01PM2.33m | 4:19AM2.25m | 5:02PM2.24m | 5:21AM2.17m | 6:05PM2.14m | 6:26AM2.10m | 7:09PM2.07m | 7:31AM2.04m | 8:10PM2.03m | ||||||||
Low Tide | 8:13PM0.15m | 8:37AM-0.01m | 9:08PM0.22m | 9:34AM0.05m | 10:07PM0.30m | 10:35AM0.13m | 11:09PM0.37m | 11:40AM0.22m | 00:14AM0.42m | 12:45PM0.29m | 1:18AM0.44m | 1:49PM0.34m | 2:20AM0.44m | ||||||||
 | |  | | |  | | |  |  |  | | | | |  | | | | | | |
 | 8:08 | — | — | 8:10 | — | — | 8:11 | — | — | 8:11 | — | — | 8:12 | — | — | 8:15 | — | — | 8:15 | — | — |
 | — | 5:20 | — | — | 5:19 | — | — | 5:17 | — | — | 5:16 | — | — | 5:15 | — | — | 5:15 | — | — | 5:14 | — |
— | — | — | — | — | — | — | — | 6 | — | — | — | — | — | — | 2 | — | — | — | — | — | |
Temp °C | 9 | 10 | 10 | 9 | 11 | 12 | 14 | 14 | 17 | 10 | 10 | 8 | 10 | 11 | 12 | 12 | 11 | 10 | 11 | 12 | 12 |
4 | 4 | 5 | 6 | 6 | 8 | 11 | 11 | 6 | 1 | 3 | 6 | 4 | 3 | 5 | 6 | 5 | 6 | 7 | 10 | 8 | |
Swell 1 Height (m) Direction Period (s) | WSW 16 | WSW 16 | WSW 14 | WSW 14 | WSW 13 | WNW 10 | WNW 11 | WNW 10 | NW 11 | WNW 11 | WNW 12 | SW 12 | SW 12 | SW 11 | SW 10 | SW 12 | SW 14 | SW 14 | WSW 14 | SSW 14 | SSW 13 |
 kJ | 1550 | 540 | 862 | 769 | 623 | 555 | 1102 | 755 | 730 | 2596 | 1278 | 1111 | 1600 | 1213 | 441 | 2310 | 5152 | 5140 | 2358 | 2460 | 1939 |
Swell 2 Height (m) Direction Period (s) | E 11 | E 10 | WNW 7 | WNW 8 | WNW 8 | WSW 13 | WSW 12 | WSW 12 | WSW 11 | SW 16 | WSW 11 | SW 15 | ENE 5 | NW 10 | SW 13 | N 9 | — | — | SSW 15 | WSW 13 | WSW 13 |
| kJ | 9 | 8 | 135 | 143 | 119 | 476 | 432 | 298 | 95 | 216 | 133 | 314 | 8 | 17 | 290 | 7 | — | — | 2029 | 1144 | 372 |
Swell 3 Height (m) Direction Period (s) | S 17 | S 9 | E 10 | E 10 | E 9 | WSW 20 | SW 18 | SW 19 | SW 18 | WSW 11 | SW 16 | NW 12 | NW 11 | ENE 5 | E 5 | — | — | — | — | — | E 5 |
| kJ | 6 | 6 | 8 | 8 | 7 | 38 | 51 | 179 | 154 | 49 | 208 | 200 | 40 | 5 | 2 | — | — | — | — | — | 13 |
Wind waves Height (m) Direction Period (s) | — | W 13 | WNW 7 | — | NE 3 | ENE 4 | NNE 3 | NE 4 | NNE 4 | — | — | E 4 | — | — | W 6 | — | — | — | — | ENE 4 | — |
| kJ | — | 835 | 265 | — | 2 | 1 | 1 | 4 | 8 | — | — | 10 | — | — | 151 | — | — | — | — | 11 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 89 | 89 | 89 | 89 | 89 | 89 | 89 | 0 | 95 | 478 | 145 | 0 | 89 | 145 | 119 | 92 | 145 | 92 | 0 | 0 | 0 |
Best forecast wave conditions in Southland | |||||||||||||||||||||
Best forecast wave conditions in New Zealand | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Stewart Island - Saber Reef surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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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