Wainui Beach - Stockroute Surf Break

Lat Long: 38.69° S 178.08° E

Wainui Beach - Stockroute Surf Forecast and Surf Report

Issued: 11 am 28 Aug 2026 (local time)

Forecast update in  hr  min

Today's Wainui Beach - Stockroute sea temperature is
12.9°C
1.0° 

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 28 Aug 2026:

  • Best quality surf: Tuesday 1 Sep, 3PM (local time) - 11ft (3.5m), 14s period, S swell with cross-shore winds.
  • Most powerful swell: Tuesday 1 Sep, 6PM (local time) - 15ft (4.5m), 14s period, SSW swell with 8,402 kJ wave energy.
  • Next surfable swell (1★+): Friday 28 Aug, 6PM (local time) - 3ft (0.9m), 13s 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 Friday (Aug 28) at 6PM. The primary swell is predicted to be 0.9m and 13s period with a secondary swell of 0.4m and 6s. Another secondary swell of 0.8m 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 4.5m 14s and forecast to arrive on Tuesday (Sep 01) at 6PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Tuesday (Sep 01) at 6AM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 6PM (Fri 28th Aug)3ft (0.9m) 13s
Best Surf 3PM (Tue 1st Sep)11ft (3.5m) 14s
Most Powerful 6PM (Tue 1st Sep)15ft (4.5m) 14s

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


The Lowdown

G’day, Rusty here. Righto, we’ve only got one spot on the menu this time – Wainui Beach - Stockroute – and it’s a bit of a mixed bag across the next couple of weeks.

Look, don’t get too excited just yet. The first four days are pretty flat and ordinary. We’ve got small stuff, but it’s not worth paddling out for until we hit Monday the 31st of August. That’s where things kick off proper.

From Monday the 31st, we’ve got a solid pulse moving in. Monday morning, the swell is a chunky 7ft from the SSW, but the period is a short 8 seconds, so it’s gonna be dumping and rowdy. The combined energy is moderate (999), and with a 12 mph cross-off shore from the SW, it’ll be clean, but this is one for experienced surfers only – over 8ft coming in later, so beginners should sit this one out.

The real standout is Tuesday, the 1st of September. This is the best on offer. By Tuesday afternoon, we’re looking at a solid 12ft swell from the S, with a very long 14-second period. The combined energy is pumping hard (7032), so there’s plenty of grunt. The wind is a moderate 12 mph cross-shore from the SSW, but this break (beach and reef, advanced only) is gonna be massive. It’s for experts only. The swell direction from the S matches the optimum SSE perfectly, so it’ll line up nicely. Just be aware, it’s a sometimes-crowded spot, so you’ll have company.

The next solid window is Wednesday the 2nd of September. Morning sees clean 6ft from the SSE (12 sec period, moderate energy at 967), with a 9 mph cross-off from the NW. Then Wednesday afternoon turns on the magic – glassy conditions, zero wind, and 5ft of SSE swell (12 sec period, 718 energy). That’s a beautiful, clean session.

The rest of the first week fades. Thursday the 3rd holds clean 3ft to 3ft with offshore and glassy windows, but it’s small. Friday the 4th is similar, with clean 3ft morning waves. After that, from the 5th of September onward, it drops right off. We have a dead run from the 5th to the 9th – tiny, weak swell, barely breaking. That’s a four-day gap with nothing worth mentioning.

Then, on the 10th of September (Thursday), a new pulse appears. We’re looking at 8ft from the SSW, short 9-second period, moderate-to-strong energy (1345). The wind is a moderate 16 mph cross-off from the WSW, so it’ll be clean, but the short period means it’s a bit walled up. Again, this is for advanced surfers.

Friday the 11th and Saturday the 12th have more SSE swell in the 4ft to 6ft range, with clean winds, but nothing that beats that Tuesday the 1st window.

Water temp at Wainui Beach - Stockroute is sitting at 55°F, which is a bit colder than normal for this time of year, so you’ll want a solid wetsuit.

Alright, the pick of the forecast is Tuesday the 1st of September, afternoon session – big, long-period groundswell, clean conditions, but it’s expert-only territory. Wednesday the 2nd afternoon is your second-best call for a more manageable, glassy session.

Stay salty.
Rusty.

Short Range Forecast

Some drizzle, heaviest during Sat afternoon. Very mild (max 16°C on Fri morning, min 10°C on Sun night). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 2mm), mostly falling on Tue morning. Very mild (max 16°C on Wed afternoon, min 5°C on Tue night). Winds decreasing (fresh winds from the WNW on Mon night, calm by Wed afternoon).

Friday
28
Saturday
29
Sunday
30
Monday
31
Tuesday
1
Wednesday
2
Thursday
3
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
2
1
1
0
1
1
1
0
2
3
3
1
!
4
3
3
3
2
2
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.2
SSE
14
0.9
SSE
13
0.7
SE
12
0.6
SE
12
0.6
SE
12
1.1
NE
6
0.5
SE
11
0.4
SE
10
0.3
SSE
14
2.2
SSW
8
1.8
SSE
12
1.7
SSE
14
1.6
SSE
15
3.5
S
14
2.3
SSE
13
1.8
SSE
12
1.6
SSE
12
1.3
SSE
12
1
SSE
12
0.9
SSE
11
0.8
SSE
11
Wave Graph
Metric surfscale
Energy kJ
508
299
157
110
106
77
57
31
41
599
1003
1075
1045
4541
1848
965
692
443
289
223
151
Wind (km/h)
15
NNE
15
N
15
N
15
N
15
NNE
10
NNW
5
W
5
NE
30
W
20
SW
10
ENE
35
WNW
30
SSW
20
SSW
15
WNW
15
NW
0
NW
20
NW
20
NW
5
NE
15
NW
Wind State
cross
cross-off
cross-off
cross-off
cross
cross-off
cross-off
glassy
off
cross-off
cross-on
off
cross
cross
off
cross-off
glassy
off
off
glassy
off
High Tide
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
9:29AM2.00m
9:48PM1.98m
10:14AM1.99m
10:35PM1.94m
Low Tide
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
3:22AM0.44m
3:36PM0.48m
4:05AM0.44m
4:22PM0.50m
part cloud
cloud
cloud
cloud
light rain
cloud
clear
clear
part cloud
clear
part cloud
part cloud
rain showers
part cloud
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:35
6:35
6:33
6:31
6:30
6:28
6:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:40
5:42
5:43
5:44
5:45
5:45
5:46
 mm
1
2
Temp °C
16
16
14
16
15
13
15
16
15
13
13
14
8
10
8
14
16
12
19
19
14
Feels °C
12
13
12
14
13
12
14
15
9
9
10
7
1
4
5
12
14
8
16
18
11
  • 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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