Wainui Beach - Stockroute Surf Break

Lat Long: 38.69° S 178.08° E

Wainui Beach - Stockroute Surf Forecast and Surf Report

Issued: 5 am 26 Aug 2026 (local time)

Forecast update in  hr  min

Today's Wainui Beach - Stockroute sea temperature is
12.5°C
1.4° 

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 26 Aug 2026:

  • Best quality surf: Monday 31 Aug, 3AM (local time) - 11ft (3.5m), 9s period, SSW swell with offshore winds.
  • Most powerful swell: Tuesday 1 Sep, 12PM (local time) - 18ft (5.5m), 14s period, S swell with 10,489 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 26 Aug, 6PM (local time) - 2ft (0.6m), 16s 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 26) at 6PM. The primary swell is predicted to be 0.6m and 16s period with a secondary swell of 0.2m and 13s. 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 5.5m 14s and forecast to arrive on Tuesday (Sep 01) at 12PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 6s period and expected on Monday (Aug 31) at 12AM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 6PM (Wed 26th Aug)2ft (0.6m) 16s
Best Surf 3AM (Mon 31st Aug)11ft (3.5m) 9s
Most Powerful12PM (Tue 1st Sep)18ft (5.5m) 14s

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


The Lowdown

G’day, Rusty here.

Alright, we’re looking at a mixed bag ahead at Wainui Beach - Stockroute. The water’s sitting at about 55°F which is a bit colder than normal for this time of year, so don’t forget the thick rubber.

Things kick off on Wednesday 26 August with a clean, offshore morning. Swell is a small 2ft from the SSE, with a long period of 18 seconds pushing in moderate energy (393). The wind is a light offshore from the NW, so expect clean little lines, more suited to a longboard or a fish. Crowds are possible here.

Thursday 27 August sees a bump in size up to 4ft on the afternoon, but the wind turns onshore from the SE, making a mess of it. The morning is only 3ft and cross-shore – not great.

Friday 28 August morning offers a small 3ft SSE swell with light cross-offshore wind from the N. It’s clean but nothing to get too excited about.

Saturday 29 and Sunday 30 are small and weak. The swell drops right off to 2ft and then 2ft, with energy falling below 100 on Sunday. Ordinary conditions, I’d give it a miss.

Now, here’s where it gets interesting – and a bit wild. On Monday 31 August the morning sees an 12ft swell from the SSW with very strong energy (4255). Problem is, that’s too big for this break – only for experts if you’re game, but the wind is light and cross-offshore. The afternoon eases to 7ft but with onshore wind.

Tuesday 1 September gets even more solid. The morning is a massive 15ft from the S, with a huge 8128 energy reading. Wind is moderate cross-shore from the SSW – again, too big for most. The afternoon though: glassy conditions with an 12ft SSE swell, 16-second period, and energy at 6286. If you’re an experienced surfer and the banks are right, that afternoon could be a standout. It’s a bit of a beast, but with glassy water and that long period, it’s going to have some serious welterweight punch. Keep an eye on the tides.

Wednesday 2 September is the pick of the week after that. The morning has a 6ft SSE swell with clean offshore wind from the NW at 15 mph. Moderate energy (894). The afternoon holds at 5ft with the same offshore flow. This is your best window for solid, clean waves that aren’t too out of control.

From Thursday 3 September onward, it fades back to small, ordinary surf – 3ft and smaller, with mostly clean but weak conditions through to Sunday 7 September.

Then on Tuesday 8 September we get a little gem: a glassy afternoon with 5ft SSE swell, 18-second period, and a nice 1144 energy reading. Eyes on that one – it’s got excellent potential for experienced surfers with clean, glassy conditions.

Overall, the standout is Wednesday 2 September morning for solid, clean waves, and the glassy Tuesday 8 September afternoon is a sneaky good option if you can wait. The big stuff on the 31st and 1st is best left to the chargers.

Rusty.

Short Range Forecast

Some drizzle, heaviest during Thu afternoon. Very mild (max 17°C on Wed morning, min 11°C on Thu afternoon). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Very mild (max 17°C on Sat morning, min 9°C on Sat night). Winds increasing (light winds from the SW on Sun morning, fresh winds from the SSW by Mon night).

Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
Monday
31
Tuesday
1
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
1
1
2
2
2
2
1
1
1
0
1
1
0
0
!
2
2
!
!
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.7
SSE
18
0.6
SSE
16
0.6
SSE
15
0.9
SSE
18
1.3
SSE
17
1.2
SSE
16
1
SSE
14
0.9
SSE
13
0.7
SE
12
0.6
SSE
12
0.6
SSE
11
0.6
SSE
11
0.5
SE
11
0.3
SSE
10
0.2
SSE
10
3.5
SSW
11
2
SSE
11
1.4
SSE
14
4.5
S
12
3.5
SSE
16
2.3
SSE
14
Wave Graph
Metric surfscale
Energy kJ
318
206
167
540
928
654
357
295
157
90
85
84
58
20
9
3076
954
811
5529
6270
2002
Wind (km/h)
15
NW
10
NE
20
WNW
15
SSW
15
SE
15
NNE
10
N
20
NNW
15
NNW
15
N
20
NNW
10
NNW
15
WNW
15
S
15
WNW
10
W
15
SSW
15
W
20
SSW
5
SE
15
NNW
Wind State
off
cross-on
off
cross
on
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
off
cross
off
cross-off
cross
cross-off
cross
glassy
cross-off
High Tide
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
8:06AM1.96m
8:24PM2.02m
8:46AM1.99m
9:04PM2.02m
Low Tide
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
2:10PM0.50m
2:42AM0.47m
2:52PM0.48m
clear
part cloud
part cloud
part cloud
rain showers
part cloud
part cloud
part cloud
part cloud
cloud
cloud
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:39
6:37
6:35
6:35
6:33
6:31
6:30
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:39
5:40
5:40
5:42
5:43
5:44
5:45
 mm
1
Temp °C
17
17
15
14
12
12
17
17
14
17
16
13
15
16
11
15
16
13
11
12
10
Feels °C
15
14
12
12
10
10
14
13
10
13
12
11
12
13
7
12
13
9
7
10
6
  • Map Icons:
  • Break
  • 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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