Wainui Beach - Stockroute Surf Break

Lat Long: 38.69° S 178.08° E

Wainui Beach - Stockroute Surf Forecast and Surf Report

Issued: 11 am 29 Aug 2026 (local time)

Forecast update in  hr  min

Today's Wainui Beach - Stockroute sea temperature is
13.0°C
0.9° 

Wainui Beach - Stockroute surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Wainui Beach - Stockroute surf forecast from 29 Aug 2026:

  • Best quality surf: Wednesday 2 Sep, 6PM (local time) - 6.5ft (2.0m), 17s period, SSE swell with offshore winds.
  • Most powerful swell: Wednesday 2 Sep, 6PM (local time) - 6.5ft (2.0m), 17s period, SSE swell with 2,225 kJ wave energy.
  • Next surfable swell (1★+): Saturday 29 Aug, 6PM (local time) - 2ft (0.6m), 11s period with SE 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 Saturday (Aug 29) at 6PM. The primary swell is predicted to be 0.6m and 11s period with a secondary swell of 0.4m and 6s. Another secondary swell of 0.7m and 6s is also forecast. 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 2.0m 17s and forecast to arrive on Wednesday (Sep 02) at 6PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Tuesday (Sep 01) at 9AM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 6PM (Sat 29th Aug)2ft (0.6m) 11s
Best Surf 6PM (Wed 2nd Sep)6.5ft (2.0m) 17s
Most Powerful 6PM (Wed 2nd Sep)6.5ft (2.0m) 17s

Table - best surf conditions forecast for Wainui Beach - Stockroute over the next 16 days.


The Lowdown

G'day, I'm Rusty. Let's break down what's on the cards for Wainui Beach - Stockroute.

We've got a few windows of proper surf, but you gotta pick your moments. The water temp is sitting at 55°, which is about 2° cooler than average for this time of year, so a bit nippy but nothing crazy.

The opening weekend is pretty quiet. Saturday the 29th has small 2ft swell from the SE with cloudy skies and a cross-off breeze, but it's ordinary. The energy is moderate (171) but the quality is meh. Sunday the 30th drops even smaller with 2ft swell and glassy conditions in the morning, but it's barely breaking.

Monday the 31st of August is where we get our first decent option. The morning session has a 2ft SSE groundswell running at a very long 17 second period, with a light westerly offshore wind. Energy is moderate (267) and the conditions are described as good. This is a solid, clean option for a Monday morning paddle.

Tuesday the 1st of September gets messy with a strong southerly wind that'll chop the surface up. Swell builds to 6ft by the afternoon but the cross-wind spoils it.

Here's the big one: Wednesday the 2nd of September. Morning session at Wainui Beach - Stockroute is the standout of the whole run. A solid 7ft SSE groundswell with a long 14 second period, paired with a clean northwesterly offshore wind. The combined energy is strong (1409). This is expert territory—waves over 8ft are only for the skilled, and at 7ft it's definitely too much for beginners. The conditions are described as excellent. If you've got the bottle, this is your session.

Thursday the 3rd of September still has good energy with a 5ft SSE swell and offshore NW winds in the morning, but the quality isn't as pristine as Wednesday.

Saturday the 5th offers a fun little session with 4ft swell and glassy conditions in the morning—a good one for a lazy start.

Then we hit a dry spell. From Sunday the 6th through Wednesday the 9th, the swell drops under 2ft with poor conditions and cross-off winds. Not worth the wetsuit.

But hold on—Thursday the 10th of September afternoon fires up again. A massive 8ft SSE groundswell with a very long 15 second period and a strong offshore NW wind. The combined energy is huge (3497) and the conditions are excellent for experienced surfers. This is another expert-only session. That long period will make it tricky at a beach setup, but if you can handle it, it'll be memorable.

Friday the 11th sees the swell dropping and the wind going southerly and strong, so it's back to ordinary from there.

Bottom line: Wednesday the 2nd of September morning is your number one call, with Thursday the 10th of September afternoon a close second. Both are for experienced surfers. Monday the 31st of August morning is a solid option if you want something smaller and cleaner.

Rusty.

Short Range Forecast

Light rain (total 6mm), mostly falling on Sat night. Very mild (max 18°C on Sat morning, min 12°C on Sat night). Winds increasing (calm on Sun morning, fresh winds from the WNW by Mon night).

Days 4-6 Weather Summary

Light rain (total 4mm), mostly falling on Tue morning. Very mild (max 19°C on Thu afternoon, min 5°C on Tue night). Wind will be generally light.

Saturday
29
Sunday
30
Monday
31
Tuesday
1
Wednesday
2
Thursday
3
Friday
4
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
1
1
1
1
1
2
2
2
1
1
4
4
4
4
2
2
1
1
1
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.6
SE
12
0.6
SE
12
0.5
SE
11
0.5
SE
11
0.4
SE
10
0.4
SE
10
0.6
SSE
17
0.8
SSE
15
1.4
SSE
13
1.3
SSE
13
1.9
S
9
1.9
SSE
12
2
SSE
14
2
SSE
15
1.8
SSE
16
1.4
SSE
14
1
SSE
13
0.8
SSE
12
0.6
SSE
12
0.4
SSE
11
0.7
S
6
Wave Graph
Metric surfscale
Energy kJ
110
106
60
57
28
29
219
300
673
538
562
1030
1407
1804
1675
789
336
164
91
48
35
Wind (km/h)
15
N
15
N
10
N
0
SSW
10
SSE
15
WNW
10
W
5
ESE
35
WNW
25
S
25
SSW
15
WNW
15
NW
5
ENE
20
WNW
25
NW
15
NW
20
NW
15
NW
20
WNW
10
SW
Wind State
cross-off
cross-off
cross-off
glassy
cross-on
off
off
on
off
cross
cross
off
off
cross-on
off
off
cross-off
off
off
off
cross-off
High Tide
7:10PM1.96m
7:25AM1.92m
7:46PM2.01m
8:06AM1.96m
8:24PM2.02m
8:46AM1.99m
9:04PM2.02m
9:29AM2.00m
9:48PM1.98m
10:14AM1.99m
10:35PM1.94m
11:03AM1.96m
11:23PM1.89m
Low Tide
12:50PM0.58m
1:26AM0.59m
1:30PM0.53m
2:04AM0.52m
2:10PM0.50m
2:42AM0.47m
2:52PM0.48m
3:22AM0.44m
3:36PM0.48m
4:05AM0.44m
4:22PM0.50m
4:53AM0.45m
5:11PM0.54m
cloud
cloud
mod rain
clear
clear
clear
part cloud
clear
part cloud
light rain
light rain
clear
clear
clear
clear
clear
clear
part cloud
part cloud
cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:35
6:33
6:31
6:30
6:28
6:26
6:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:42
5:43
5:44
5:45
5:45
5:46
5:47
 mm
6
2
2
Temp °C
18
16
13
14
16
13
15
15
14
11
8
7
14
16
13
18
19
15
20
20
16
Feels °C
15
14
12
12
14
8
13
12
8
6
3
4
12
14
8
13
16
12
16
16
13
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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