O'Neills Bay Surf Break

Lat Long: 36.88° S 174.44° E

O'Neills Bay Surf Forecast and Surf Report

Issued: 11 am 23 Jul 2026 (local time)

Forecast update in  hr  min

Today's O'Neills Bay sea temperature is
14.2° C
0.5° 

O'Neills Bay surf forecast from 23 Jul 2026:

  • Best quality surf: Sunday 26 Jul, 6AM (local time) - 11ft (3.5m), 15s period, WSW swell with glassy winds.
  • Most powerful swell: Saturday 25 Jul, 6PM (local time) - 16ft (5.0m), 14s period, WSW swell with 8,702 kJ wave energy.
  • Next surfable swell (1★+): Friday 24 Jul, 6AM (local time) - 3.5ft (1.1m), 12s 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 Friday (Jul 24) at 6AM. The primary swell is predicted to be 1.1m and 12s period with a secondary swell of 0.6m and 4s. 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 5.0m 14s and forecast to arrive on Saturday (Jul 25) at 6PM. 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 12PM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 6AM (Fri 24th Jul)3.5ft (1.1m) 12s
Best Surf 6AM (Sun 26th Jul)11ft (3.5m) 15s
Most Powerful 6PM (Sat 25th Jul)16ft (5.0m) 14s

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


The Lowdown

Alright, Rusty here. Let’s have a look at this stretch of the West Coast. O’Neills Bay is the only spot on the cards for the next 16 days, so it’s all about one place.

The window opens from Thursday, 23 July, with a solid pulse of southwest groundswell. Water temp is sitting at 57.6°, which is about average for this time of year, so nothing shocking there.

Thursday morning is the first real standout. The swell is a clean 4 feet out of the southwest with a 14-second period, packing moderate energy (612). The wind is glassy out of the east-northeast, so the surf will be clean and lined up. It’s a bit of a bigger swell for the spot, but it’s not too big for the advanced crew here. O’Neills Bay is a fairly exposed beach, so that long-period groundswell will hold up nicely. The place is very consistent, and it’s often crowded, so expect company.

Thursday afternoon turns a bit messy with onshore winds and rain. The swell builds slightly to 4.6 feet (721 energy), but wind shifts west-southwest onshore, so the quality drops. The tide might also be a factor.

Friday, 24 July, starts with a smaller 3 feet southwest swell and a cross-offshore wind, so it’s clean but the size is down. The period holds at 12 seconds, so there’s still shape. It’s a backup option but not a standout.

The weekend of 25-26 July brings a big jump in size. Saturday is a write-off with 13-16 feet southwest swell and strong onshore winds (28 mph). The energy is massive (up to 7785), but the wind is wild, and the surf is poor. This is more of a kite-surfing setup than a paddle day.

Sunday, 26 July, comes with a 10 feet southwest swell, still very long 16-second period, and huge energy (3981). The wind goes light and cross-offshore in the morning, which cleans it up. This is excellent for experienced surfers only. The size is well over 8 feet, so it’s expert territory. The afternoon drops to 7.9 feet but the wind stays light and cross, so there’s still a chance.

Monday, 27 July, through Tuesday, 28 July, sees the swell easing from 6.9 feet down to 3 feet, but the wind is consistently cross-onshore from the south or southwest, so the surf is choppy or poor. Not worth paddling out.

Wednesday, 29 July, morning offers a reprieve. The swell is a clean 3.3 feet at 11 seconds, with glassy north winds. Good surf conditions, but the energy is low (268). It’s a small, clean session for the patient.

Thursday, 30 July, the swell bumps up to 4.6-5.2 feet with a longer 13-15 second period. Energy climbs to 1167. The wind is cross or cross-onshore from the northwest, so it’s a bit bumpy but still surfable. Marginal.

Friday, 31 July, the morning brings a 8.2 feet west swell with a 14-second period, and onshore wind. The energy is high (2452), but the surface is poor. The afternoon drops to 5.2 feet and cleaner cross-onshore wind. Still marginal.

Now, the real standout in the second week is Saturday, 1 August. The morning is a beauty: 7.5 feet southwest swell, 12-second period, glassy east-northeast wind. The energy is strong (1550). This is excellent for strong intermediate to advanced surfers. The afternoon is also glassy, with an 8.2 feet swell and 10-second period, very clean. A top pick.

Sunday, 2 August, holds around 8.2 feet southwest swell but with a cross-shore wind, so it’s a bit less clean. Still surfable, but not as good as Saturday.

Monday, 3 August, drops to 4.9 feet, but the wind is cross-onshore, so it’s choppy.

Tuesday, 4 August, starts with a tiny 2.3 feet west-southwest swell but a clean cross-offshore wind. The period is a long 14 seconds, but it’s small. The afternoon jumps to 7.2 feet with a shorter 9-second period and cross-shore wind, marginal.

Wednesday, 5 August, kicks up again with 10 feet southwest swell, 13-second period, and cross-shore wind. The energy is huge (5192), but the wind is fresh and lumpy. Only for the hardcore.

Thursday, 6 August, is another standout. The morning is 8.2 feet southwest swell with a 15-second period, light cross-shore wind, and the energy is very high (4782). The afternoon goes glassy with a 7.5 feet swell, 14-second period, and clean conditions. This is excellent for experienced surfers, and the glassy afternoon makes it the best of the second week.

Friday, 7 August, finishes the window with a clean 4.9 feet southwest swell, 14-second period, glassy wind in the morning. Good conditions, but

Short Range Forecast

Heavy rain (total 29mm), heaviest during Fri afternoon. Very mild (max 14°C on Fri morning, min 11°C on Thu morning). Winds increasing (calm on Thu morning, strong winds from the SW by Sat morning).

Days 4-6 Weather Summary

Light rain (total 7mm), mostly falling on Sun morning. Very mild (max 13°C on Mon afternoon, min 9°C on Sun morning). Wind will be generally light.

Thursday
23
Friday
24
Saturday
25
Sunday
26
Monday
27
Tuesday
28
Wednesday
29
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
0
1
0
0
0
0
0
4
3
1
2
0
1
1
0
1
2
1
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.2
SW
14
1.4
SW
13
1.4
WSW
13
0.9
WSW
12
1.7
NW
7
2.3
W
9
4
WSW
10
5
WSW
13
4
WSW
14
3
WSW
16
2.4
WSW
14
2.1
WSW
14
2.1
WSW
13
1.8
WSW
13
1.5
WSW
12
1
WSW
12
0.9
WSW
12
1.2
WSW
11
1
WSW
11
1
WSW
11
1.5
WSW
13
Wave Graph
Metric surfscale
Energy kJ
581
721
620
255
284
846
3240
7785
6840
3981
2408
1772
1430
1060
645
289
239
323
242
247
784
Wind (km/h)
5
ENE
15
WSW
10
NW
20
N
25
NNW
30
WNW
45
SW
40
SW
25
WSW
5
SE
5
S
15
S
15
SW
25
SW
15
SSW
10
SSE
15
S
5
S
5
N
10
WSW
5
NW
Wind State
glassy
on
cross-on
cross-off
cross
cross-on
on
on
on
cross-off
cross
cross-on
cross-on
cross-on
cross-on
cross
cross-on
cross-on
glassy
on
cross-on
High Tide
4:36PM2.17m
4:58AM2.11m
5:43PM2.16m
6:05AM2.10m
6:46PM2.21m
7:06AM2.15m
7:40PM2.32m
7:58AM2.26m
8:26PM2.44m
8:42AM2.37m
9:07PM2.57m
9:22AM2.47m
9:44PM2.68m
Low Tide
10:19AM0.73m
10:53PM0.88m
11:20AM0.79m
11:59PM0.90m
12:22PM0.78m
1:00AM0.85m
1:19PM0.71m
1:53AM0.75m
2:08PM0.60m
2:38AM0.62m
2:50PM0.49m
3:19AM0.50m
3:29PM0.38m
part cloud
rain showers
cloud
part cloud
mod rain
rain showers
rain showers
rain showers
light rain
mod rain
clear
clear
part cloud
cloud
rain showers
clear
clear
clear
part cloud
rain showers
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:28
7:26
7:26
7:24
7:24
7:24
7:22
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:29
5:30
5:30
5:30
5:31
5:32
5:34
 mm
1
7
14
3
2
2
6
1
1
Temp °C
13
13
13
14
13
14
11
11
12
10
10
10
12
13
12
11
11
11
13
13
13
Feels °C
12
10
10
9
8
10
2
2
5
8
8
5
6
7
6
8
7
8
12
11
12
  • 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 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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