Surf Forecasts:
Dunedin - St Clair surf forecast from 20 Sep 2026:
- Best quality surf: Sunday 20 Sep, 3PM (local time) - 7ft (2.2m), 17s period, S swell with cross-shore winds.
- Most powerful swell: Sunday 27 Sep, 4PM (local time) - 13ft (4.0m), 13s period, S swell with 4,918 kJ wave energy.
- Next surfable swell (1★+): Sunday 20 Sep, 3PM (local time) - 7ft (2.2m), 17s period with S swell.
Best Forecast Surf Conditions for Dunedin - St Clair this week:
The surf forecast for Dunedin - St Clair over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Sep 20) at 3PM. The primary swell is predicted to be 2.2m and 17s period with a secondary swell of 0.2m and 11s. Another secondary swell of 2.4m and 11s is also forecast. The wind is predicted to be cross-shore as the swell arrives.
The most powerful waves expected at Dunedin - St Clair in the next 16 days are 4.0m 13s and forecast to arrive on Sunday (Sep 27) at 4PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 5s period and expected on Friday (Sep 25) at 6AM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3PM (Sun 20th Sep) | 7ft (2.2m) 17s |
| Best Surf | 3PM (Sun 20th Sep) | 7ft (2.2m) 17s |
| Most Powerful | 4PM (Sun 27th Sep) | 13ft (4.0m) 13s |
Table - best surf conditions forecast for Dunedin - St Clair over the next 16 days.
Short Range ForecastModerate rain (total 18mm), heaviest on Tue afternoon. Very mild (max 19°C on Mon afternoon, min 3°C on Tue night). Winds decreasing (strong winds from the WSW on Sun morning, light winds from the NW by Mon morning). | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Wed afternoon. Very mild (max 13°C on Thu morning, min 5°C on Wed morning). Wind will be generally light. | ||||||||||||||||||||
Sunday 20 | Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | Friday 25 | Saturday 26 | |||||||||||||||
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) | SSW 16 | S 17 | SSW 16 | S 12 | S 11 | SSW 15 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 10 | SSW 15 | SSW 14 | SSW 13 | S 13 | S 13 | S 11 | S 10 | S 10 | SSW 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 6818 | 2900 | 882 | 617 | 220 | 296 | 424 | 867 | 1519 | 1441 | 2777 | 731 | 296 | 862 | 617 | 421 | 398 | 220 | 192 | 149 | 765 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-off | off | off | cross | cross-off | cross | cross-off | cross | cross | cross-off | cross-off | cross | cross | off | cross | cross-off | off | cross-off | off |
High Tide | 11:06AM1.54m | 11:28PM1.48m | 11:53AM1.57m | 00:14AM1.52m | 12:38PM1.61m | 00:57AM1.57m | 1:20PM1.66m | 1:39AM1.62m | 2:01PM1.70m | 2:20AM1.67m | 2:42PM1.73m | 3:01AM1.71m | 3:23PM1.74m | ||||||||
Low Tide | 5:05PM0.46m | 5:23AM0.42m | 6:00PM0.42m | 6:17AM0.38m | 6:50PM0.38m | 7:06AM0.32m | 7:36PM0.32m | 7:52AM0.26m | 8:18PM0.26m | 8:35AM0.21m | 8:59PM0.21m | 9:18AM0.16m | 9:40PM0.18m | ||||||||
 |  |  | | |  | |  | | |  | | | | | | | | | | | |
 | 6:31 | — | — | 6:30 | — | — | 6:28 | — | — | 6:26 | — | — | 6:24 | — | — | 6:22 | — | — | 6:20 | — | — |
 | — | 6:30 | — | — | 6:32 | — | — | 6:34 | — | — | 6:35 | — | — | 6:36 | — | — | 6:37 | — | — | 6:38 | — |
mm | — | — | — | — | — | 8 | — | 8 | 2 | — | 1 | — | — | — | — | 1 | — | — | — | — | 6 |
Temp °C | 9 | 11 | 7 | 15 | 19 | 8 | 9 | 9 | 5 | 7 | 8 | 6 | 13 | 13 | 9 | 10 | 11 | 10 | 15 | 17 | 14 |
Feels °C | -1 | 3 | 3 | 12 | 15 | 0 | 2 | 3 | 0 | 0 | 2 | 1 | 8 | 7 | 5 | 9 | 8 | 8 | 13 | 14 | 10 |
Swell 1 Height (m) Direction Period (s) | ESE 11 | S 17 | S 10 | S 12 | S 11 | SSW 15 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 10 | SSW 9 | S 9 | SSW 14 | SSW 13 | S 13 | S 13 | S 11 | S 10 | S 10 | ESE 13 |
| kJ | 24 | 2900 | 557 | 617 | 220 | 296 | 424 | 867 | 1519 | 1441 | 386 | 355 | 256 | 862 | 617 | 421 | 398 | 220 | 192 | 149 | 63 |
Swell 2 Height (m) Direction Period (s) | — | ESE 11 | SSW 16 | SSW 15 | SSW 14 | NE 6 | ESE 13 | ENE 10 | ESE 12 | E 10 | SSW 16 | SSW 16 | SSW 15 | ESE 10 | E 10 | ESE 16 | ESE 16 | SE 15 | ESE 13 | ESE 13 | SE 18 |
| kJ | — | 12 | 882 | 231 | 218 | 8 | 17 | 10 | 27 | 8 | 534 | 320 | 296 | 10 | 8 | 25 | 25 | 54 | 120 | 116 | 12 |
Swell 3 Height (m) Direction Period (s) | — | — | ESE 11 | NE 5 | SE 10 | ESE 13 | NE 10 | ESE 12 | ESE 12 | SE 12 | ESE 10 | E 9 | ESE 11 | E 17 | SE 17 | E 10 | ESE 13 | ESE 12 | — | NE 3 | S 23 |
| kJ | — | — | 11 | 16 | 4 | 17 | 4 | 14 | 14 | 5 | 10 | 6 | 11 | 5 | 11 | 2 | 17 | 29 | — | 2 | 11 |
Wind waves Height (m) Direction Period (s) | SSW 16 | SSW 11 | — | NNE 5 | NE 5 | SSW 7 | SW 8 | — | SSW 6 | — | SSW 15 | SSW 10 | — | — | — | — | — | NE 3 | — | NNE 4 | SSW 9 |
| kJ | 6818 | 1245 | — | 45 | 14 | 228 | 147 | — | 159 | — | 2777 | 731 | — | — | — | — | — | 1 | — | 8 | 765 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 316 | 1032 | 0 | 0 | 0 | 20 | 15 | 30 | 15 | 22 | 22 | 15 | 0 | 20 | 13 | 0 | 4 | 0 | 0 | 0 | 1 |
Best forecast wave conditions in Otago | |||||||||||||||||||||
Best forecast wave conditions in New Zealand | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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Information about the Dunedin - St Clair Surf forecast
The above surf forecast table for Dunedin - St Clair provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Dunedin - St Clair can be found by selecting the local surf guide option on the grey menu. Our Dunedin - St Clair 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 (Dunedin - St Clair) 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 Dunedin - St Clair 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.
Dunedin - St Clair is 5 km (3 miles) from Dunedin. If you plan a holiday in Otago, look for hotels and other accommodation in Dunedin. Dunedin has rooms for a wide range of budgets as well as car hire and transport links.
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