Surf Forecasts:
Otago Peninsula - Boulder Beach surf forecast from 28 Aug 2026:
- Best quality surf: Monday 31 Aug, 6AM (local time) - 13ft (4.0m), 14s period, SSW swell with cross-shore winds.
- Most powerful swell: Monday 31 Aug, 9PM (local time) - 15ft (4.5m), 14s period, SSW swell with 7,114 kJ wave energy.
- Next surfable swell (1★+): Saturday 29 Aug, 3PM (local time) - 3.5ft (1.0m), 10s period with SSW swell.
Best Forecast Surf Conditions for Otago Peninsula - Boulder Beach this week:
The surf forecast for Otago Peninsula - Boulder Beach over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Aug 29) at 3PM. The primary swell is predicted to be 1.0m and 10s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Otago Peninsula - Boulder Beach in the next 16 days are 4.5m 14s and forecast to arrive on Monday (Aug 31) at 9PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 9s period and expected on Saturday (Aug 29) at 3AM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3PM (Sat 29th Aug) | 3.5ft (1.0m) 10s |
| Best Surf | 6AM (Mon 31st Aug) | 13ft (4.0m) 14s |
| Most Powerful | 9PM (Mon 31st Aug) | 15ft (4.5m) 14s |
Table - best surf conditions forecast for Otago Peninsula - Boulder Beach over the next 16 days.
Short Range ForecastLight rain (total 9mm), mostly falling on Sat night. Very mild (max 12°C on Fri afternoon, min 4°C on Sun night). Winds increasing (light winds from the NNW on Sat afternoon, strong winds from the WSW by Sun morning). | Days 5-7 Weather SummaryModerate rain (total 13mm), heaviest on Mon night. Very mild (max 14°C on Wed afternoon, min 4°C on Mon night). Winds decreasing (near gales from the SW on Mon night, calm by Thu morning). | |||||||||||||||||||
Fri 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | ||||||||||||||
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) | S 10 | SW 7 | S 10 | SSW 10 | SSW 13 | SW 13 | SSW 15 | S 15 | SSW 13 | S 12 | SSW 13 | SSW 11 | SSW 11 | S 12 | S 12 | S 11 | S 11 | S 10 | SSW 14 | SSW 16 |
Wave Graph  | ||||||||||||||||||||
 kJ | 314 | 221 | 47 | 229 | 378 | 878 | 3158 | 1081 | 1752 | 1160 | 4065 | 2344 | 3891 | 1494 | 1207 | 724 | 394 | 192 | 158 | 429 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross-off | cross | cross | cross | cross | cross | cross | cross-on | cross-on | cross-on | off | cross-off | cross-off | cross | cross-off | cross-off | cross-off |
High Tide | 3:57PM1.71m | 4:14AM1.65m | 4:38PM1.70m | 4:56AM1.66m | 5:20PM1.68m | 5:40AM1.66m | 6:04PM1.65m | 6:27AM1.65m | 6:54PM1.61m | 7:21AM1.65m | 7:49PM1.58m | 8:20AM1.65m | 8:49PM1.56m | |||||||
Low Tide | 10:14PM0.23m | 10:30AM0.18m | 10:53PM0.21m | 11:10AM0.17m | 11:32PM0.21m | 11:53AM0.18m | 00:14AM0.21m | 12:37PM0.20m | 00:58AM0.22m | 1:26PM0.23m | 1:46AM0.24m | 2:19PM0.26m | 2:40AM0.25m | |||||||
 |  | | |  |  | |  | |  |  | | |  |  | | | | | | |
 | — | — | 7:13 | — | — | 7:11 | — | — | 7:09 | — | — | 7:07 | — | — | 7:05 | — | — | 7:03 | — | — |
 | 6:02 | — | — | 6:04 | — | — | 6:05 | — | — | 6:06 | — | — | 6:07 | — | — | 6:08 | — | — | 6:09 | — |
mm | — | — | — | — | 1 | 2 | 1 | 4 | 1 | 2 | 9 | 1 | — | — | — | — | 1 | — | — | — |
Temp °C | 12 | 9 | 11 | 12 | 10 | 9 | 8 | 5 | 11 | 10 | 6 | 6 | 8 | 7 | 13 | 14 | 13 | 14 | 12 | 11 |
Feels °C | 7 | 4 | 6 | 9 | 5 | -1 | -3 | -5 | 3 | 0 | -5 | -5 | -1 | 3 | 8 | 10 | 8 | 13 | 9 | 6 |
Swell 1 Height (m) Direction Period (s) | ENE 10 | ENE 10 | ENE 8 | SSW 10 | SSW 13 | SSW 16 | NE 8 | S 15 | SSW 13 | S 12 | S 24 | NE 10 | S 11 | S 12 | S 12 | S 11 | S 11 | S 10 | S 9 | SSW 16 |
| kJ | 518 | 258 | 80 | 229 | 378 | 411 | 10 | 1005 | 1752 | 1160 | 11 | 4 | 2118 | 1494 | 1207 | 724 | 394 | 192 | 136 | 429 |
Swell 2 Height (m) Direction Period (s) | S 10 | S 10 | SSW 8 | ENE 9 | ENE 8 | NE 8 | SE 12 | NE 8 | S 15 | S 15 | — | — | S 20 | SSE 15 | NNE 4 | NNE 5 | SSW 14 | SSW 14 | SSW 14 | SSE 11 |
| kJ | 314 | 212 | 47 | 52 | 28 | 18 | 6 | 3 | 662 | 662 | — | — | 30 | 355 | 8 | 5 | 77 | 165 | 158 | 79 |
Swell 3 Height (m) Direction Period (s) | SE 15 | SSW 6 | S 10 | SSW 18 | SE 12 | SE 12 | — | SE 12 | NE 8 | — | — | — | — | S 18 | — | E 11 | NNE 5 | SE 12 | SE 12 | S 9 |
| kJ | 8 | 36 | 47 | 67 | 6 | 6 | — | 5 | 3 | — | — | — | — | 55 | — | 2 | 2 | 37 | 34 | 39 |
Wind waves Height (m) Direction Period (s) | — | SW 7 | W 2 | — | WSW 6 | SW 13 | SSW 15 | SSW 10 | W 4 | W 4 | SSW 13 | SSW 11 | SSW 11 | — | NNE 4 | NW 3 | NW 3 | — | NE 4 | NE 4 |
| kJ | — | 221 | 1 | — | 46 | 878 | 3158 | 1081 | 10 | 35 | 4065 | 2344 | 3891 | — | 6 | 2 | 1 | — | 3 | 15 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 12 | 4 | 16 | 0 | 22 | 284 | 472 | 315 | 23 | 170 | 495 | 170 | 751 | 0 | 0 | 3 | 8 | 0 | 0 | 3 |
Best forecast wave conditions in Otago | ||||||||||||||||||||
Best forecast wave conditions in New Zealand | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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Information about the Otago Peninsula - Boulder Beach Surf forecast
The above surf forecast table for Otago Peninsula - Boulder Beach provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Otago Peninsula - Boulder Beach can be found by selecting the local surf guide option on the grey menu. Our Otago Peninsula - Boulder Beach 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 (Otago Peninsula - Boulder Beach) 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 Otago Peninsula - Boulder Beach 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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