Surf Forecasts:
Wainakarua River Mouth surf forecast from 18 Aug 2026:
- Best quality surf: Wednesday 19 Aug, 12AM (local time) - 6.5ft (2.0m), 15s period, SSE swell with offshore winds.
- Most powerful swell: Wednesday 19 Aug, 12AM (local time) - 6.5ft (2.0m), 15s period, SSE swell with 1,833 kJ wave energy.
- Next surfable swell (1★+): Wednesday 19 Aug, 12AM (local time) - 6.5ft (2.0m), 15s period with SSE swell.
Best Forecast Surf Conditions for Wainakarua River Mouth this week:
The surf forecast for Wainakarua River Mouth over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Aug 19) at 12AM. The primary swell is predicted to be 2.0m and 15s period with a secondary swell of 0.3m and 10s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Wainakarua River Mouth in the next 16 days are 2.0m 15s and forecast to arrive on Wednesday (Aug 19) at 12AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 6s period and expected on Sunday (Aug 23) at 12PM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Wed 19th Aug) | 6.5ft (2.0m) 15s |
| Best Surf | 12AM (Wed 19th Aug) | 6.5ft (2.0m) 15s |
| Most Powerful | 12AM (Wed 19th Aug) | 6.5ft (2.0m) 15s |
Table - best surf conditions forecast for Wainakarua River Mouth over the next 16 days.
Short Range ForecastMostly dry. Very mild (max 13°C on Wed morning, min 7°C on Wed night). Winds decreasing (fresh winds from the SW on Tue afternoon, calm by Thu morning). | Days 5-7 Weather SummaryMostly dry. Very mild (max 15°C on Sat afternoon, min 8°C on Fri night). Winds increasing (light winds from the WNW on Fri night, strong winds from the WSW by Sat night). | |||||||||||||||||||
Tue 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | ||||||||||||||
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 9 | SSE 15 | SSE 14 | SSE 9 | S 8 | SSE 10 | S 16 | SSE 14 | SSE 11 | S 10 | SSE 10 | SSE 10 | SE 9 | ENE 6 | ESE 14 | S 9 | S 16 | S 15 | S 15 | S 14 |
Wave Graph  | ||||||||||||||||||||
 kJ | 792 | 1833 | 1138 | 308 | 412 | 154 | 188 | 258 | 130 | 74 | 77 | 38 | 23 | 20 | 36 | 327 | 396 | 298 | 347 | 239 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | cross-off | cross | cross-off | off | cross-on | cross-off | cross-off | cross-on | cross-off | cross-off | cross | cross-off | off | off | cross-off | cross-off | glassy | cross-off |
High Tide | 7:37PM1.58m | 8:10AM1.57m | 8:36PM1.50m | 9:13AM1.53m | 9:39PM1.46m | 10:15AM1.52m | 10:39PM1.45m | 11:12AM1.54m | 11:32PM1.47m | 12:01PM1.58m | 00:18AM1.51m | 12:44PM1.63m | 00:59AM1.55m | |||||||
Low Tide | 1:57AM0.35m | 2:27PM0.42m | 2:51AM0.42m | 3:25PM0.49m | 3:46AM0.46m | 4:21PM0.52m | 4:39AM0.47m | 5:13PM0.51m | 5:28AM0.45m | 6:01PM0.48m | 6:14AM0.41m | 6:45PM0.44m | ||||||||
 |  |  | |  | | |  | | | |  | | | | | | | | | |
 | — | — | 7:28 | — | — | 7:26 | — | — | 7:24 | — | — | 7:22 | — | — | 7:22 | — | — | 7:20 | — | — |
 | 5:51 | — | — | 5:52 | — | — | 5:52 | — | — | 5:53 | — | — | 5:54 | — | — | 5:57 | — | — | 5:58 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 11 | 10 | 13 | 13 | 9 | 9 | 10 | 7 | 10 | 12 | 10 | 13 | 15 | 12 | 12 | 13 | 11 | 14 | 15 | 12 |
Feels °C | 3 | 5 | 10 | 10 | 7 | 7 | 7 | 4 | 6 | 8 | 7 | 10 | 12 | 7 | 4 | 5 | 4 | 11 | 13 | 9 |
Swell 1 Height (m) Direction Period (s) | E 10 | SSE 15 | SSE 14 | SSE 9 | SSE 7 | SSE 10 | SSE 10 | SSE 14 | SSE 11 | S 10 | SSE 10 | SSE 10 | NE 5 | ENE 6 | NE 6 | S 9 | S 16 | S 15 | S 15 | S 14 |
| kJ | 18 | 1833 | 1138 | 308 | 111 | 154 | 123 | 258 | 130 | 74 | 77 | 38 | 7 | 20 | 9 | 327 | 396 | 298 | 347 | 239 |
Swell 2 Height (m) Direction Period (s) | ESE 13 | E 10 | E 10 | SE 13 | SSE 9 | SSE 12 | S 16 | E 8 | ESE 11 | ESE 11 | ESE 10 | NE 4 | SE 9 | ESE 14 | ESE 14 | ESE 13 | ESE 13 | ESE 13 | ESE 13 | SE 15 |
| kJ | 17 | 18 | 8 | 25 | 69 | 51 | 188 | 6 | 12 | 12 | 9 | 3 | 23 | 20 | 36 | 34 | 34 | 17 | 18 | 33 |
Swell 3 Height (m) Direction Period (s) | — | ESE 12 | SE 12 | E 10 | ESE 10 | SSE 17 | E 9 | ESE 12 | E 9 | S 14 | E 10 | E 10 | SE 16 | SSW 3 | S 18 | S 19 | — | NNE 4 | NNE 5 | NNE 4 |
| kJ | — | 15 | 39 | 17 | 18 | 54 | 6 | 14 | 6 | 15 | 8 | 2 | 10 | 1 | 25 | 27 | — | 2 | 2 | 1 |
Wind waves Height (m) Direction Period (s) | S 9 | — | — | — | S 8 | — | — | NNE 3 | — | ENE 4 | NNE 4 | NNW 2 | NE 5 | — | WSW 4 | W 4 | — | N 4 | W 2 | NNE 4 |
| kJ | 792 | — | — | — | 412 | — | — | 1 | — | 1 | 1 | 1 | 23 | — | 49 | 2 | — | 5 | 2 | 5 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 235 | 0 | 0 | 43 | 0 | 0 | 60 | 0 | 0 | 75 | 0 | 10 | 9 | 87 | 246 | 373 | 97 | 0 | 0 | 0 |
Best forecast wave conditions in Otago | ||||||||||||||||||||
Best forecast wave conditions in New Zealand | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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Information about the Wainakarua River Mouth Surf forecast
The above surf forecast table for Wainakarua River Mouth provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Wainakarua River Mouth can be found by selecting the local surf guide option on the grey menu. Our Wainakarua River Mouth 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 (Wainakarua River Mouth) 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 Wainakarua River Mouth 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.
Are you planning a holiday in Otago? If you are looking for accommodation near Wainakarua River Mouth, camping, hotels and holiday cottages in Otago, consider staying in Dunedin which is 72 km (45 miles) away.
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