Surf Forecasts:
Wainui Beach - Stockroute surf forecast from 19 Aug 2026:
- Best quality surf: Friday 21 Aug, 6AM (local time) - 2.5ft (0.8m), 16s period, SSE swell with offshore winds.
- Most powerful swell: Friday 21 Aug, 3PM (local time) - 4ft (1.2m), 16s period, SSE swell with 671 kJ wave energy.
- Next surfable swell (1★+): Thursday 20 Aug, 9PM (local time) - 4ft (1.2m), 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 Thursday (Aug 20) at 9PM. The primary swell is predicted to be 1.2m and 8s period with a secondary swell of 1.0m and 9s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Wainui Beach - Stockroute in the next 16 days are 1.2m 16s and forecast to arrive on Friday (Aug 21) 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 0.5m 3s period and expected on Monday (Aug 24) at 9PM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Thu 20th Aug) | 4ft (1.2m) 8s |
| Best Surf | 6AM (Fri 21st Aug) | 2.5ft (0.8m) 16s |
| Most Powerful | 3PM (Fri 21st Aug) | 4ft (1.2m) 16s |
Table - best surf conditions forecast for Wainui Beach - Stockroute over the next 16 days.
The Lowdown
Righto, Rusty here. Let’s get into it.
Looking at the 16-day window for Wainui Beach - Stockroute (Gisborne), the first week has some moments but the second week is pretty much a write-off. We start with a big pulse of energy midweek but the winds are ugly, so the early days are a battle. The best window is a short one, and you’ll need to pick your session carefully.
The first real chance to wet your line is on the morning of Thursday the 20th. Swell drops to 7ft from the south, period is a short 8 seconds, and wind is from the southwest at 12 mph coming cross-offshore. The combined energy is still solid at 1252, but the short period means it’s a bit lumpy. The water is sitting at 55°, about 2° colder than average for this time of year – a little nippy but not too bad. This is a marginal call.
Friday morning the 21st is a real standout. The swell drops right back to 2ft from the SSE, but the period stretches out to a very long 16 seconds. That’s proper groundswell. Wind is from the northwest at 6 mph, cross-offshore and clean. Combined energy is low at 479, so it’s not powerful, but with that long period and clean conditions, the waves will be glassy and well-shaped. This is a long-period groundswell, so it will break better at the reef sections of Wainui – the beachies might be a bit straight. Still, this is the best on offer. Crowds are sometimes an issue here, so you might have company.
Saturday afternoon the 22nd is another tiny but glassy moment. Swell is 3ft from the SSE, 12-second period, and the wind drops to nothing – glassy conditions from the north at 3 mph. Combined energy is just 175. Very small, but if you’ve got a log, it’ll be clean.
The second week from Wednesday the 27th onward gets grim. No real swell to speak of, and winds are mostly onshore or cross-onshore. The only bit of hope is Friday morning the 28th, with 3ft from the SSE at 16 seconds, and cross-offshore wind from the north at 9 mph. Energy is 388. It’s marginal, but clean. After that, it’s small, windy, and messy right through to September 3rd, when a new south swell bumps up to 5-6ft but with short 8-second period and strong cross-shore winds. Not worth paddling out.
Overall, Friday the 21st morning is the clear standout. Small but clean with lovely long-period groundswell. Thursday the 20th morning is the only other session that might offer something.
Rusty.
Short Range ForecastMostly dry. Very mild (max 17°C on Sat afternoon, min 8°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 17°C on Tue afternoon, min 8°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 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) | SE 9 | S 8 | SSE 8 | SSE 16 | SSE 16 | SSE 13 | SSE 12 | SSE 12 | SSE 11 | SE 11 | SE 10 | ESE 13 | S 7 | SSE 17 | SSE 13 | SSE 13 | SSE 12 | SSE 15 | SSE 16 | SSE 15 | SSE 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 539 | 505 | 160 | 211 | 671 | 242 | 210 | 153 | 79 | 55 | 34 | 34 | 34 | 59 | 482 | 249 | 175 | 78 | 85 | 44 | 40 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | off | off | cross-on | cross-off | off | off | off | off | cross-off | cross-off | off | cross-on | cross-off | off | off | off | cross-off | cross-off | cross-off |
High Tide | 11:32AM1.90m | 11:48PM1.87m | 12:17PM1.84m | 00:30AM1.79m | 1:01PM1.78m | 1:14AM1.71m | 1:46PM1.73m | 2:05AM1.65m | 2:36PM1.70m | 3:08AM1.63m | 3:41PM1.69m | 4:20AM1.65m | 4:58PM1.73m | ||||||||
Low Tide | 5:42PM0.65m | 6:09AM0.62m | 6:28PM0.72m | 6:53AM0.69m | 7:17PM0.77m | 7:38AM0.75m | 8:09PM0.81m | 8:27AM0.80m | 9:07PM0.83m | 9:27AM0.82m | 10:10PM0.83m | 10:32AM0.78m | 11:11PM0.79m | ||||||||
 |  |  | | | | | |  | | | | | | | | | | |  | | |
 | 6:48 | — | — | 6:46 | — | — | 6:45 | — | — | 6:43 | — | — | 6:41 | — | — | 6:41 | — | — | 6:39 | — | — |
 | — | 5:34 | — | — | 5:35 | — | — | 5:36 | — | — | 5:37 | — | — | 5:37 | — | — | 5:38 | — | — | 5:39 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 12 | 12 | 9 | 12 | 12 | 10 | 15 | 17 | 14 | 16 | 16 | 14 | 12 | 13 | 10 | 15 | 17 | 12 | 18 | 20 | 16 |
Feels °C | 7 | 7 | 6 | 10 | 8 | 7 | 12 | 13 | 9 | 11 | 12 | 9 | 8 | 8 | 6 | 10 | 13 | 7 | 15 | 18 | 13 |
Swell 1 Height (m) Direction Period (s) | SE 9 | SSE 9 | SSE 8 | ESE 10 | SSE 16 | SSE 13 | SSE 12 | SSE 12 | SSE 11 | SE 11 | SE 10 | ESE 13 | S 7 | S 6 | SSE 13 | SSE 13 | SSE 12 | SSE 12 | SSE 11 | SSE 15 | SSE 14 |
| kJ | 460 | 222 | 160 | 157 | 671 | 242 | 210 | 153 | 79 | 55 | 25 | 34 | 33 | 20 | 482 | 249 | 175 | 78 | 45 | 44 | 40 |
Swell 2 Height (m) Direction Period (s) | SSE 14 | ESE 8 | ESE 9 | SSE 9 | ESE 10 | ESE 10 | ESE 9 | ESE 10 | ESE 13 | ESE 13 | ESE 13 | SSE 10 | ESE 13 | SSE 17 | ESE 12 | ESE 13 | ESE 13 | SSE 15 | SSE 16 | SSE 10 | SSE 9 |
| kJ | 189 | 177 | 127 | 80 | 138 | 63 | 32 | 9 | 16 | 34 | 34 | 9 | 34 | 59 | 29 | 17 | 16 | 76 | 85 | 18 | 8 |
Swell 3 Height (m) Direction Period (s) | — | SSE 13 | SSE 17 | SSE 16 | — | SSE 16 | E 15 | E 14 | ESE 11 | NE 13 | — | NE 4 | S 18 | ESE 13 | NE 4 | NE 4 | NNE 4 | ESE 14 | ESE 14 | ESE 13 | ESE 12 |
| kJ | — | 98 | 58 | 211 | — | 97 | 4 | 4 | 11 | 7 | — | 1 | 6 | 34 | 2 | 3 | 2 | 20 | 18 | 17 | 15 |
Wind waves Height (m) Direction Period (s) | S 8 | S 8 | — | — | — | NNE 3 | NW 3 | — | — | — | NNW 2 | WNW 2 | — | N 5 | NNE 4 | NNE 4 | NE 4 | — | — | — | — |
| kJ | 539 | 505 | — | — | — | 1 | 2 | — | — | — | 1 | 1 | — | 1 | 7 | 2 | 1 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 40 | 45 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 46 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Gisborne and Mahia | |||||||||||||||||||||
Best forecast wave conditions in New Zealand | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Wainui Beach - Stockroute surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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.
Nearest