O'Neills Bay Surf Break

Lat Long: 36.88° S 174.44° E

O'Neills Bay Surf Forecast and Surf Report

Issued: 5 pm 29 Jul 2026 (local time)

Forecast update in  hr  min

Today's O'Neills Bay sea temperature is
14.2° C
0.4° 

O'Neills Bay surf forecast from 29 Jul 2026:

  • Best quality surf: Thursday 30 Jul, 12AM (local time) - 4.5ft (1.4m), 14s period, SW swell with cross-offshore winds.
  • Most powerful swell: Saturday 1 Aug, 9AM (local time) - 11ft (3.5m), 14s period, WSW swell with 5,204 kJ wave energy.
  • Next surfable swell (1★+): Thursday 30 Jul, 12AM (local time) - 4.5ft (1.4m), 14s period with SW swell.

Best Forecast Surf Conditions for O'Neills Bay this week:

The surf forecast for O'Neills Bay over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Jul 30) at 12AM. The primary swell is predicted to be 1.4m and 14s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at O'Neills Bay in the next 16 days are 3.5m 14s and forecast to arrive on Saturday (Aug 01) at 9AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 4s period and expected on Thursday (Jul 30) at 6AM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+)12AM (Thu 30th Jul)4.5ft (1.4m) 14s
Best Surf12AM (Thu 30th Jul)4.5ft (1.4m) 14s
Most Powerful 9AM (Sat 1st Aug)11ft (3.5m) 14s

Table - best surf conditions forecast for O'Neills Bay over the next 16 days.


The Lowdown

Alright folks, Rusty here. We’re talking about O’Neills Bay, and the next 16 days have a bit of a story to tell.

We’re kicking off on Wednesday the 29th of July with some clean 3ft surf, direction a solid WSW and a period of 11 seconds. The water’s sitting at 58°, which is pretty average for this time of year, nothing wild. This first session is a nice little intro. The combined energy is moderate (367), nothing to write home about, but the wind is a light cross-off from the north and it'll be clean. A decent starter.

Thursday the 30th is where it starts to build. Morning brings 5ft from the WSW, but that period jumps to 14 seconds – proper groundswell energy. The combined energy is up to 867, so moderate-to-strong. The wind is still cross-off from the north at 9 mph, keeping things clean. This is a good window. The afternoon drops off a touch with a cross-shore wind, so the morning is your pick.

Friday the 31st is a write-off. We get onshore winds from the west at 16-19 mph, rain showers, and a messy, lumpy 6ft to 8ft. Combined energy is high (1252-1595), but with the poor wind quality, the setup looks more interesting for kite surfing than paddle surfing. Forget it.

The first of August starts big. Saturday morning sees an 12ft swell from the WSW, a 14-second period, and combined energy over 5204 – that’s serious power. But the wind is onshore, and the report says it's marginal. That's a heavy, closing-out mess, only for the brave and expert. The afternoon is still big but with a cross-onshore wind, it's still not pretty. Sunday the 2nd drops back to 6ft from the SW, wind is cross-shore, and the energy is moderate (878). It's surfable but nothing to get excited about. Monday the 3rd and Tuesday the 4th stay blown out with onshore SW winds and that big, unruly energy.

Then we get a gem. On Wednesday the 5th of August, that's the standout. The morning is glassy. Dead calm, 0 mph wind. The swell is 5ft from the SW with a 14-second period, energy at 988. It’s clean, it’s powerful, and the wave quality is set to be very good. The offshore wind direction is ENE, so it's offshore at this break, and with glassy conditions, it’ll be perfect. This is the one to circle for a proper paddle. You’ll have the place to yourself early.

The following days are a mixed bag. Thursday the 6th has a small, clean 2ft wave in the morning, but it's weak. Friday the 7th afternoon looks interesting – offshore wind from the east at 9 mph, 4ft from the WSW, a 12-second period, and the energy is moderate (539). That’s a clean, fun option. Saturday the 8th and Sunday the 9th are small and clean but low energy. The spot is very consistent, so it never fully dies, but you’re hunting for the good windows.

Looking further out, Tuesday the 11th has another clean morning – 4ft from the WSW, 14-second period, light offshore from the ESE, energy at 516. Solid.

But the real long-range standouts are around Thursday the 13th of August. That morning is glassy again, with a 8ft swell from the WNW and a period of 11 seconds. Combined energy hits 1390 – strong. The report says it’s excellent for experienced surfers. That’s a big, clean setup for the experts. The afternoon gets a bit onshore, so the morning is locked in. That is a promising session, though it's far out, so keep an eye on it.

So, if you’re picking your battles, Wednesday the 5th of August morning is the absolute winner. Clean, glassy, good size, and good energy. Thursday the 13th of August morning is a close second for the experienced crew, with bigger, clean swell. The rest is a mix of fun windows and blown-out days.

Stay frothy,
Rusty

Short Range Forecast

Moderate rain (total 16mm), heaviest on Thu night. Very mild (max 15°C on Thu afternoon, min 11°C on Wed night). Winds increasing (light winds from the N on Wed afternoon, fresh winds from the W by Fri afternoon).

Days 5-7 Weather Summary

Light rain (total 4mm), mostly falling on Sat afternoon. Very mild (max 14°C on Mon morning, min 6°C on Sat night). Winds increasing (light winds from the SSW on Sun night, fresh winds from the SW by Mon afternoon).

Wed
29
Thursday
30
Friday
31
Saturday
1
Sunday
2
Monday
3
Tuesday
4
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
3
3
1
1
0
0
0
4
1
3
2
0
0
0
0
0
0
0
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1
WSW
11
1.4
SW
14
1.5
WSW
14
1.3
WSW
14
0.9
WSW
13
1.8
W
10
1.3
WSW
16
3.5
WSW
14
3.5
WSW
14
3
WSW
14
2.4
SW
13
1.8
SW
12
1.5
SW
11
1.3
SW
10
1
SW
19
1.3
WSW
19
1.5
WSW
17
2.3
SW
16
2.1
SW
16
1.8
SW
14
Wave Graph
Metric surfscale
Energy kJ
242
846
845
626
313
587
846
4749
5204
3933
1892
840
534
309
738
1166
1352
2610
2093
1340
Wind (km/h)
5
N
15
NNE
15
N
15
NW
25
NNW
25
W
30
W
25
W
10
WSW
20
SSW
25
SE
15
SSE
20
S
10
SW
25
SW
30
SW
20
SW
25
SW
20
SW
15
SW
Wind State
cross-off
cross-off
cross-off
cross
cross
on
on
cross-on
on
cross-on
cross-off
cross
cross-on
on
on
on
cross-on
on
on
on
High Tide
9:44PM2.68m
9:59AM2.56m
10:20PM2.76m
10:35AM2.61m
10:54PM2.81m
11:10AM2.64m
11:28PM2.82m
11:46AM2.64m
00:02AM2.79m
12:23PM2.62m
00:39AM2.73m
1:03PM2.56m
1:20AM2.63m
Low Tide
3:56AM0.39m
4:06PM0.29m
4:32AM0.30m
4:41PM0.24m
5:07AM0.24m
5:17PM0.22m
5:43AM0.22m
5:53PM0.25m
6:20AM0.23m
6:32PM0.31m
6:59AM0.27m
7:15PM0.40m
part cloud
clear
part cloud
clear
rain showers
rain showers
rain showers
rain showers
rain showers
rain showers
clear
clear
clear
part cloud
clear
clear
rain showers
rain showers
rain showers
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:22
7:20
7:20
7:20
7:18
7:18
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:34
5:35
5:35
5:36
5:37
5:37
5:38
 mm
8
2
1
3
2
1
2
1
1
4
Temp °C
14
12
14
15
14
14
14
13
12
12
9
9
10
12
14
13
13
14
14
13
Feels °C
11
9
10
11
9
8
7
7
9
8
4
3
4
7
8
7
8
9
9
10
  • Map Icons:
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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 O'Neills Bay Surf forecast

The above surf forecast table for O'Neills Bay provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at O'Neills Bay can be found by selecting the local surf guide option on the grey menu. Our O'Neills Bay 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 (O'Neills Bay) 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 O'Neills Bay 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.

O'Neills Bay is 10 km (6 miles) from the city of Waitakere. If you plan a holiday in Auckland, look for hotels and other accommodation in Waitakere. Waitakere has rooms for a wide range of budgets as well as car hire and transport links.

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