Wainui Beach - Stockroute Surf Break

Lat Long: 38.69° S 178.08° E

Wainui Beach - Stockroute Surf Forecast and Surf Report

Issued: 11 pm 09 Aug 2026 (local time)

Forecast update in  hr  min

Today's Wainui Beach - Stockroute sea temperature is
12.8° 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 9 Aug 2026:

  • Best quality surf: Saturday 15 Aug, 3PM (local time) - 7ft (2.1m), 9s period, ESE swell with glassy winds.
  • Most powerful swell: Monday 17 Aug, 3AM (local time) - 15ft (4.5m), 10s period, S swell with 3,626 kJ wave energy.
  • Next surfable swell (1★+): Monday 10 Aug, 9AM (local time) - 2ft (0.6m), 10s 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 Monday (Aug 10) at 9AM. The primary swell is predicted to be 0.6m and 10s period with a secondary swell of 0.2m and 5s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Wainui Beach - Stockroute in the next 16 days are 4.5m 10s and forecast to arrive on Monday (Aug 17) at 3AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 8s period and expected on Saturday (Aug 15) at 3PM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 9AM (Mon 10th Aug)2ft (0.6m) 10s
Best Surf 3PM (Sat 15th Aug)7ft (2.1m) 9s
Most Powerful 3AM (Mon 17th Aug)15ft (4.5m) 10s

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


The Lowdown

G’day, Rusty here. Let’s be straight with you—this 16-day stretch for the Wainui Beach – Stockroute zone is a bit of a slow burner, but there’s a serious payoff waiting if you’re patient. The first few days are pretty ordinary, with only small, weak surf and a lot of cross-onshore junk. Don’t get too excited about the start of the week; we’re looking at a few days of waiting before things start to wake up.

The first real sign of life shows on Tuesday morning, the 11th. We’ve got a 5ft SSW swell pushing in with a light cross-offshore breeze. The energy is only moderate (440), and it’s clean and surfable. It’s not a world-beater, but it’s the first decent wave of the period. After that, Wednesday and Thursday drop right back off into the ordinary category, with small, messy waves and onshore winds killing the vibe. Friday the 14th is a complete write-off—rain and a fresh cross-onshore breeze are making a mess of things.

Now, here’s where it gets interesting. Saturday the 15th afternoon is the first standout. The wind goes glassy, and that swell jumps up to 8ft from the southeast. The energy reading is strong (1341), and for the experienced crew, this is going to be firing. The wave comment says it’s excellent for experienced surfers, so if you’ve got the skills, this is your window. It’s a bit big for beginners, and the crowds can be a factor at times, so get out there if you can.

Sunday the 16th is still rideable, but it’s a step down with a bit more wind and chop. Then Monday the 17th is a hard no—the swell jumps to 12ft but the wind is strong and cross, making it a complete mess. This one’s for the kite crew, not the paddle surfers.

Now, pay attention. The big window starts Tuesday the 18th. We’ve got solid 12ft southerly swells, but the forecasting notes keep saying it’s too big for this break. That’s a warning—this is a heavy, powerful groundswell with long periods, and it’s going to be a serious, expert-only affair. The energy is huge, readings in the 3000s, but the conditions are mostly cross or cross-off, so it’s going to be raw. If you’re not a seasoned charger, stay well clear.

The real gem, the one you want to circle on the calendar, is Thursday the 20th morning. The swell is still a solid 10ft from the SSE, but the wind goes offshore and light. The energy is massive (3524), and the forecast says excellent conditions for experienced surfers. This is the standout. It’s big, it’s clean, and it’s going to have some proper power behind it. This is a serious, heavy wave, so it’s experts only. The crowd might be out, but the quality will be worth it.

After that, the swell eases but stays fun. Friday the 21st morning still has a decent 6ft SE swell with clean, cross-off winds—good for a solid session. Then we get another nice pulse on Saturday the 22nd morning, with 5ft ESE and an offshore breeze, though the period gets long, so it might be a bit straight at the beach; this spot is a beach and reef mix, so it should handle it. The following week, things mellow out. Sunday and Monday have some smaller, clean waves in the 4ft to 3ft range, but by Tuesday the 25th, it’s fading out to small and choppy.

So, in short: the first week is mostly a wait. The standout is Thursday the 20th morning, with Saturday the 15th afternoon as a great warm-up for the advanced crew. The middle of the month is for experts only. The water temp is about average for this time of year. Keep it salty.

Rusty

Short Range Forecast

Light rain (total 7mm), mostly falling on Sun night. Very mild (max 15°C on Mon afternoon, min 9°C on Mon night). Wind will be generally light.

Days 5-7 Weather Summary

Heavy rain (total 31mm), heaviest during Fri afternoon. Very mild (max 15°C on Sat morning, min 8°C on Wed night). Winds decreasing (fresh winds from the ENE on Fri afternoon, calm by Sat afternoon).

Monday
10
Tuesday
11
Wednesday
12
Thursday
13
Friday
14
Saturday
15
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
1
1
1
2
1
1
1
0
2
1
0
0
0
0
1
1
4
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
SE
12
0.6
SE
10
0.6
SE
10
0.5
SE
10
1.5
SSW
8
1.5
S
9
0.9
SSE
11
0.9
SE
8
1.1
SE
11
1.2
SE
10
1
SE
9
0.9
ESE
9
0.9
ESE
8
1.6
E
7
1.3
ESE
7
2
ENE
8
1.6
ESE
8
2.1
ESE
9
1.6
E
9
Wave Graph
Metric surfscale
Energy kJ
192
89
79
55
257
363
196
112
308
286
162
124
119
226
149
452
273
701
402
Wind (km/h)
15
NNW
10
WNW
10
SE
15
WSW
15
WSW
20
SSW
10
WNW
5
N
20
NE
10
N
15
N
25
NE
15
NNE
30
ENE
40
ENE
25
NE
10
NNE
5
NE
10
NW
Wind State
cross-off
off
on
cross-off
cross-off
cross
off
cross-off
cross-on
cross-off
cross-off
cross-on
cross
cross-on
cross-on
cross
cross
glassy
off
High Tide
2:20AM1.79m
2:55PM1.84m
3:29AM1.77m
4:07PM1.85m
4:46AM1.79m
5:27PM1.91m
5:54AM1.85m
6:28PM2.00m
6:51AM1.92m
7:19PM2.07m
7:42AM1.98m
8:05PM2.10m
Low Tide
8:44AM0.49m
9:16PM0.63m
9:49AM0.51m
10:31PM0.63m
11:01AM0.49m
11:47PM0.60m
12:04PM0.45m
00:48AM0.54m
12:58PM0.43m
1:39AM0.49m
1:48PM0.42m
2:26AM0.46m
rain showers
clear
clear
clear
part cloud
cloud
part cloud
cloud
part cloud
part cloud
part cloud
part cloud
cloud
light rain
heavy rain
heavy rain
part cloud
thunderstorm
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:00
6:58
6:58
6:56
6:54
6:54
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:25
5:25
5:27
5:28
5:29
5:30
 mm
7
3
13
13
2
1
Temp °C
13
14
15
11
13
12
10
12
13
9
14
14
13
13
14
14
15
14
12
Feels °C
12
12
12
8
9
8
8
9
9
6
10
9
9
8
9
10
15
14
11
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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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