Surf Forecasts:
Wainui Beach - Stockroute surf forecast from 23 Aug 2026:
- Best quality surf: Thursday 27 Aug, 9PM (local time) - 4.5ft (1.4m), 16s period, SSE swell with cross-offshore winds.
- Most powerful swell: Thursday 27 Aug, 3PM (local time) - 5ft (1.5m), 18s period, SSE swell with 1,327 kJ wave energy.
- Next surfable swell (1★+): Monday 24 Aug, 12PM (local time) - 2.5ft (0.8m), 8s 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 Monday (Aug 24) at 12PM. The primary swell is predicted to be 0.8m and 8s period with a secondary swell of 0.3m and 13s. 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 1.5m 18s and forecast to arrive on Thursday (Aug 27) 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 1.1m 5s period and expected on Monday (Aug 31) at 9AM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12PM (Mon 24th Aug) | 2.5ft (0.8m) 8s |
| Best Surf | 9PM (Thu 27th Aug) | 4.5ft (1.4m) 16s |
| Most Powerful | 3PM (Thu 27th Aug) | 5ft (1.5m) 18s |
Table - best surf conditions forecast for Wainui Beach - Stockroute over the next 16 days.
The Lowdown
G’day, I’m Rusty, and here’s how the surf’s stacking up for the next couple of weeks.
We’ve got a slow start, but the second half of the window is where the magic is. For the first week, it’s all about the early mornings at Wainui Beach - Stockroute, with clean, workable waves that are small but fun. The standout by a long shot is Tuesday the 1st of September. That morning, we’re looking at a serious pulse of 8ft SSE groundswell with a very long 16-second period. The energy is huge (5427), and with a light offshore breeze from the north, it’s going to be glassy perfection. That’s expert territory only – way too big for beginners. The water is sitting at 54°, which is a bit colder than normal for this time of year.
Now, let’s break it down. Monday the 24th, the morning is the only real go: 3ft SSE swell, 9-second period, clean with a light NW offshore. The wave energy is moderate (124). Afternoon turns to chop.
Tuesday the 25th, morning is the pick: 3ft SSE swell, 13-second period, and a gentle WNW offshore breeze. Energy is solid (248). Clean and fun.
Wednesday the 26th, another clean morning with 2ft SSE swell, a very long 18-second period, and light NW offshore. The energy is moderate (377). Afternoon gets a cross-on breeze.
Thursday the 27th is the highlight of the first week. The morning has 4ft SSE swell, 18-second period, light NW offshore, and very strong energy (722). Clean, long period groundswell – great for this point-and-reef setup. Afternoon bumps up to 5ft but gets cross-on wind.
Friday the 28th, morning is clean with 4ft SSE swell, 14-second period, and a cross-off breeze. Moderate energy (496). Saturday the 29th, morning is still rideable but dropping. Sunday the 30th, the energy drops way off.
Then we hit a gap from Sunday afternoon through to Monday the 31st, with poor conditions and tiny surf. A few days of nothing much.
Then Tuesday the 1st of September – that’s the big one. The morning: 8ft SSE swell, 16-second period, light north breeze, offshore. The energy is enormous (5427). This is a clean, powerful, expert-only day. The afternoon sees the swell drop to 8ft but gets cross-shore wind.
Wednesday the 2nd, morning has 5ft SSE swell, 13-second period, with a strong WNW offshore. Moderate energy (706). Clean but a bit blown. Afternoon stays clean and offshore.
Thursday the 3rd, the wind picks up and the quality fades. Friday the 4th, another clean morning with 2ft SSE swell, 15-second period, and a good WNW offshore. Energy is moderate (285). Saturday the 5th and Sunday the 6th drop off into poor, choppy conditions.
Monday the 7th, a final clean morning with 3ft SSE swell, 15-second period, and light westerly wind. Energy is moderate (321). After that, it fades out.
So, the one true standout is the morning of Tuesday the 1st of September – that’s as good as it gets. For the rest, stick to the early clean windows.
Rusty.
Short Range ForecastMostly dry. Very mild (max 16°C on Wed morning, min 9°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummarySome drizzle, heaviest during Fri night. Very mild (max 18°C on Thu morning, min 9°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | |||||||||||||||
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) | SSE 9 | SSE 15 | SSE 13 | SSE 13 | SSE 12 | SSE 15 | SSE 18 | SSE 16 | SSE 15 | SSE 18 | SSE 18 | SSE 16 | SSE 14 | SSE 13 | SSE 12 | SE 12 | SE 12 | SE 11 | SSE 11 | SE 10 | SSE 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 101 | 76 | 475 | 231 | 131 | 228 | 318 | 203 | 167 | 697 | 1327 | 806 | 474 | 277 | 196 | 147 | 110 | 99 | 78 | 50 | 54 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-on | cross-off | off | on | off | off | cross-on | off | off | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | on | off | cross-off | cross | cross-off |
High Tide | 2:36PM1.70m | 3:08AM1.63m | 3:41PM1.69m | 4:20AM1.65m | 4:58PM1.73m | 5:17AM1.71m | 5:51PM1.81m | 6:03AM1.79m | 6:32PM1.89m | 6:45AM1.86m | 7:10PM1.96m | 7:25AM1.92m | 7:46PM2.01m | ||||||||
Low Tide | 9:07PM0.83m | 9:27AM0.82m | 10:10PM0.83m | 10:32AM0.78m | 11:11PM0.79m | 11:26AM0.72m | 00:02AM0.73m | 12:10PM0.65m | 00:46AM0.66m | 12:50PM0.58m | 1:26AM0.59m | 1:30PM0.53m | 2:04AM0.52m | ||||||||
 | |  | | | | | | | | | | |  |  | | | | | | | |
 | 6:41 | — | — | 6:41 | — | — | 6:39 | — | — | 6:37 | — | — | 6:35 | — | — | 6:35 | — | — | 6:33 | — | — |
 | — | 5:37 | — | — | 5:38 | — | — | 5:39 | — | — | 5:40 | — | — | 5:40 | — | — | 5:42 | — | — | 5:43 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — |
Temp °C | 14 | 14 | 12 | 14 | 15 | 13 | 16 | 16 | 14 | 18 | 16 | 13 | 16 | 16 | 14 | 17 | 16 | 12 | 16 | 16 | 11 |
Feels °C | 12 | 9 | 8 | 12 | 12 | 10 | 14 | 13 | 11 | 16 | 12 | 11 | 12 | 11 | 11 | 16 | 13 | 10 | 12 | 10 | 9 |
Swell 1 Height (m) Direction Period (s) | SSE 9 | SSE 8 | SSE 13 | SSE 13 | SSE 12 | SSE 15 | SSE 18 | SSE 16 | SSE 15 | SSE 18 | SSE 18 | SSE 16 | SSE 14 | SSE 13 | SSE 12 | SE 12 | SE 12 | SE 11 | SSE 11 | SE 10 | SSE 10 |
| kJ | 101 | 58 | 475 | 231 | 131 | 228 | 318 | 203 | 167 | 697 | 1327 | 806 | 474 | 277 | 196 | 147 | 110 | 99 | 78 | 50 | 54 |
Swell 2 Height (m) Direction Period (s) | ESE 13 | SSE 15 | ESE 12 | ESE 13 | SSE 16 | ESE 12 | ESE 13 | ESE 13 | ESE 12 | ESE 11 | E 11 | ESE 10 | NE 10 | NNE 4 | SE 13 | ENE 7 | NE 6 | ENE 6 | ENE 6 | ENE 6 | ESE 12 |
| kJ | 17 | 76 | 31 | 16 | 51 | 14 | 16 | 16 | 14 | 25 | 10 | 10 | 4 | 2 | 28 | 20 | 8 | 3 | 8 | 4 | 15 |
Swell 3 Height (m) Direction Period (s) | S 18 | ESE 13 | NNE 4 | NE 5 | ESE 12 | SE 12 | SE 13 | NE 10 | S 18 | — | — | SE 17 | ESE 12 | SE 12 | NE 9 | SE 13 | ENE 7 | NE 8 | — | S 5 | ENE 6 |
| kJ | 6 | 17 | 1 | 1 | 15 | 24 | 43 | 4 | 26 | — | — | 11 | 14 | 5 | 3 | 27 | 5 | 2 | — | 2 | 3 |
Wind waves Height (m) Direction Period (s) | — | N 5 | NNE 4 | — | — | — | — | — | N 3 | — | — | NE 3 | NE 4 | NNE 5 | NE 3 | — | — | NW 2 | — | — | SSW 3 |
| kJ | — | 1 | 7 | — | — | — | — | — | 1 | — | — | 4 | 4 | 15 | 2 | — | — | 1 | — | — | 2 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 6 | 0 | 0 | 46 | 0 | 0 | 3 | 0 | 0 | 8 | 0 | 0 | 0 | 3 | 0 | 48 | 0 | 0 | 65 | 0 |
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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