Surf Forecasts:
Wainui Beach - Stockroute surf forecast from 11 Aug 2026:
- Best quality surf: Wednesday 19 Aug, 12AM (local time) - 13ft (4.0m), 10s period, S swell with cross-offshore winds.
- Most powerful swell: Wednesday 19 Aug, 6AM (local time) - 16ft (5.0m), 12s period, S swell with 7,007 kJ wave energy.
- Next surfable swell (1★+): Wednesday 12 Aug, 6AM (local time) - 3ft (0.9m), 9s period with SSE swell.
Best Forecast Surf Conditions for Wainui Beach - Stockroute this week:
The surf forecast for Wainui Beach - Stockroute over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Aug 12) at 6AM. The primary swell is predicted to be 0.9m and 9s period with a secondary swell of 0.1m and 6s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Wainui Beach - Stockroute in the next 16 days are 5.0m 12s and forecast to arrive on Wednesday (Aug 19) at 6AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 8s period and expected on Friday (Aug 14) at 9PM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Wed 12th Aug) | 3ft (0.9m) 9s |
| Best Surf | 12AM (Wed 19th Aug) | 13ft (4.0m) 10s |
| Most Powerful | 6AM (Wed 19th Aug) | 16ft (5.0m) 12s |
Table - best surf conditions forecast for Wainui Beach - Stockroute over the next 16 days.
The Lowdown
Hey folks, Rusty here. Let’s get into the outlook for the next couple of weeks at Wainui Beach - Stockroute. This spot is a beach and reef setup, exposed to swell, and it’s consistently picking up energy. Water temps are running about average for this time of year, so nothing to worry about there.
The first few days are a bit of a write-off, I’m not gonna lie. Wednesday the 12th and Thursday the 13th offer only weak, messy waves with poor conditions. Friday the 14th is a washout with heavy rain and strong onshore winds. Things stay ordinary through the weekend, with Saturday the 15th morning being the only real bright spot early on—glassed-off conditions with a 4ft easterly swell, period around 8 seconds. The combined energy is moderate (246), so it’s small but clean. That’s your best bet for the first week if you’re keen.
Sunday the 16th and Monday the 17th see a big jump in swell size, but it’s paired with howling winds—near gale on Sunday and strong breeze on Monday. The energy gets massive (over 2000 on Monday), but the wind is just too messy for good surfing. This is more for kite surfers to get stuck into, not paddle surfing.
Then we hit the second week. Tuesday the 18th offers a small window: morning has a 6ft SE swell, period 10 seconds, with cross-off wind and clean conditions. Energy is strong (1043), but by afternoon the wind picks up again. The real standout, though, is Wednesday the 19th morning. The swell is a solid 16ft from the south, period 14 seconds—that’s a long-period groundswell packing massive energy (16315). The wind is light cross-off and the water is clean. But listen, this is way too big for beginners; it’s expert-only territory. The swell direction is south, which is a little off the optimum SSE, but it’s still a proper big-wave session for the brave.
Thursday the 20th is still big (12ft, 12-second period) but again, heavy and cross-shore. Friday the 21st morning is the best for experienced surfers: 10ft from the south, 11-second period, light cross-off wind, and clean conditions. The energy is strong (2805) but manageable for the skilled. After that, things drop off through the weekend and into the following week, with smaller SE swells (3–5ft) and clean conditions, but nothing to write home about.
Overall, if you’re after a standout, Wednesday the 19th morning is the one for the big-wave crew, and Saturday the 15th morning is the small, clean option for everyone else. After that, Friday the 21st morning is worth a look for experienced surfers. Don’t expect much in the final few days—it’s tiny and fading.
Rusty.
Short Range ForecastHeavy rain (total 48mm), heaviest during Fri morning. Very mild (max 14°C on Fri morning, min 9°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 63mm), heaviest during Sat night. Very mild (max 13°C on Fri night, min 8°C on Sun afternoon). Winds increasing (calm on Sat morning, near gales from the SW by Sun afternoon). | ||||||||||||||||||
Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | ||||||||||||||
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) | SSE 11 | SE 8 | SE 11 | SE 10 | SE 9 | SE 9 | NE 6 | NE 7 | NE 7 | E 7 | E 8 | E 8 | E 8 | S 6 | SSE 9 | S 9 | S 9 | SSE 8 | SE 9 |
Wave Graph  | |||||||||||||||||||
 kJ | 180 | 132 | 382 | 245 | 138 | 93 | 143 | 271 | 127 | 156 | 224 | 224 | 273 | 239 | 828 | 1569 | 1233 | 687 | 535 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-on | cross-on | cross-off | cross-off | cross | cross | cross-on | cross | cross-off | glassy | cross | cross | cross-off | cross-off | cross | cross | cross | cross-off |
High Tide | 4:46AM1.79m | 5:27PM1.91m | 5:54AM1.85m | 6:28PM2.00m | 6:51AM1.92m | 7:19PM2.07m | 7:42AM1.98m | 8:05PM2.10m | 8:30AM2.01m | 8:51PM2.10m | 9:16AM2.02m | 9:37PM2.07m | |||||||
Low Tide | 10:31PM0.63m | 11:01AM0.49m | 11:47PM0.60m | 12:04PM0.45m | 00:48AM0.54m | 12:58PM0.43m | 1:39AM0.49m | 1:48PM0.42m | 2:26AM0.46m | 2:37PM0.43m | 3:10AM0.46m | 3:25PM0.47m | |||||||
 |  |  | |  | |  |  |  |  | | | | | | | | | | |
 | — | 6:58 | — | — | 6:56 | — | — | 6:54 | — | — | 6:54 | — | — | 6:52 | — | — | 6:52 | — | — |
 | — | — | 5:27 | — | — | 5:28 | — | — | 5:29 | — | — | 5:30 | — | — | 5:30 | — | — | 5:31 | — |
mm | — | — | — | — | 4 | — | 12 | 27 | 5 | 4 | — | 5 | 23 | 5 | 14 | 11 | — | 1 | 1 |
Temp °C | 10 | 12 | 12 | 10 | 11 | 13 | 13 | 14 | 14 | 13 | 13 | 13 | 13 | 10 | 9 | 9 | 10 | 10 | 9 |
Feels °C | 7 | 8 | 8 | 8 | 10 | 11 | 12 | 11 | 11 | 12 | 12 | 11 | 10 | 0 | -2 | -2 | 0 | 2 | 3 |
Swell 1 Height (m) Direction Period (s) | SSE 11 | SE 8 | SE 11 | SE 10 | SE 9 | SE 9 | ENE 5 | ENE 6 | E 7 | E 7 | E 8 | E 8 | E 8 | E 8 | E 8 | SE 9 | SSE 8 | S 15 | SE 9 |
| kJ | 180 | 132 | 382 | 245 | 138 | 93 | 39 | 95 | 111 | 156 | 224 | 224 | 273 | 186 | 136 | 749 | 567 | 118 | 535 |
Swell 2 Height (m) Direction Period (s) | E 6 | NE 6 | S 16 | — | NE 4 | ESE 13 | SE 8 | SE 8 | ESE 14 | ESE 12 | ESE 13 | ESE 13 | SSE 18 | ESE 8 | SSE 16 | SSE 15 | E 8 | ESE 15 | S 15 |
| kJ | 1 | 1 | 5 | — | 5 | 17 | 55 | 30 | 20 | 29 | 17 | 17 | 60 | 84 | 90 | 76 | 71 | 22 | 115 |
Swell 3 Height (m) Direction Period (s) | — | S 18 | NE 10 | ESE 13 | ESE 13 | S 18 | ESE 13 | ESE 14 | S 16 | S 15 | S 16 | S 18 | SSW 17 | ESE 13 | ESE 12 | SE 15 | S 17 | — | E 10 |
| kJ | — | 6 | 4 | 17 | 18 | 6 | 17 | 19 | 5 | 4 | 5 | 6 | 119 | 16 | 15 | 9 | 151 | — | 98 |
Wind waves Height (m) Direction Period (s) | — | — | ENE 4 | NNE 8 | NE 5 | NE 4 | NE 6 | NE 7 | NE 7 | — | — | — | — | S 6 | SSE 9 | S 9 | S 9 | SSE 8 | SSW 8 |
| kJ | — | — | 9 | 6 | 25 | 5 | 143 | 271 | 127 | — | — | — | — | 239 | 828 | 1569 | 1233 | 687 | 522 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 2 | 46 | 0 | 0 | 0 | 0 | 48 | 3 | 0 | 0 | 13 | 47 | 121 | 119 | 116 | 119 | 116 | 40 |
Best forecast wave conditions in Gisborne and Mahia | |||||||||||||||||||
Best forecast wave conditions in New Zealand | |||||||||||||||||||
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Information about the Wainui Beach - Stockroute Surf forecast
The above surf forecast table for Wainui Beach - Stockroute provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Wainui Beach - Stockroute can be found by selecting the local surf guide option on the grey menu. Our Wainui Beach - Stockroute 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 (Wainui Beach - Stockroute) 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 Wainui Beach - Stockroute 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 Gisborne and Mahia? If you are looking for accommodation near Wainui Beach - Stockroute, camping, hotels and holiday cottages in Gisborne and Mahia, consider staying in Gisborne which is 9 km (6 miles) away.
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