Surf Forecasts:
O'Neills Bay surf forecast from 26 Jul 2026:
- Best quality surf: Saturday 1 Aug, 9PM (local time) - 10ft (3.0m), 12s period, SW swell with offshore winds.
- Most powerful swell: Saturday 1 Aug, 9AM (local time) - 15ft (4.5m), 14s period, WSW swell with 6,857 kJ wave energy.
- Next surfable swell (1★+): Tuesday 28 Jul, 9PM (local time) - 4ft (1.2m), 11s period with WSW 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 Tuesday (Jul 28) at 9PM. The primary swell is predicted to be 1.2m and 11s period with a secondary swell of 0.2m and 16s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at O'Neills Bay in the next 16 days are 4.5m 14s and forecast to arrive on Saturday (Aug 01) at 9AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Thursday (Jul 30) at 9AM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Tue 28th Jul) | 4ft (1.2m) 11s |
| Best Surf | 9PM (Sat 1st Aug) | 10ft (3.0m) 12s |
| Most Powerful | 9AM (Sat 1st Aug) | 15ft (4.5m) 14s |
Table - best surf conditions forecast for O'Neills Bay over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s talk about what’s on offer.
Right now, we’ve got a bit of a gap before anything good shows up, so don’t rush down just yet. The first real standout is on Sunday the 26th of July. O’Neills Bay is where it’s at, especially Sunday morning. We’ve got a solid 10ft swell out of the WSW with a long 15-second period – that’s proper groundswell energy, heaps of grunt (combined energy of 4317). The wind is glassy, light from the ENE, so it’s going to be clean. This is excellent surf for experienced surfers only, as 10ft is solid and strong for this spot. Water temp is 58°, which is pretty much normal for this time of year. The swell direction lines up well with O’Neills Bay’s sweet spot. The crowd factor? It can get busy here, so expect company if you score it.
Sunday afternoon stays good, but the size drops a little to 8ft with a 14-second period, still clean and cross-off wind, but a notch down in quality.
Monday the 27th sees the wind switch onshore and choppy, and the quality drops fast. Not worth it.
Now, after a midweek lull, we get another good window. Thursday the 30th morning brings a 5ft SW swell, 13-second period, and clean NNE cross-off wind. It’s a smaller, more manageable wave with decent energy (732). Still a solid option for advanced surfers who want clean lines.
Then we hit a rough patch. Friday the 31st and Saturday the 1st of August are messy, with strong onshore wind and lumpy conditions. Saturday morning actually has a big 15ft swell, but it’s blown out – poor conditions. Saturday afternoon cleans up a bit with an 12ft and cross-off wind, but it’s still marginal.
Looking further ahead, Tuesday the 4th of August morning is another eye-catcher. We get a 6ft SW swell with a very long 18-second period – that’s serious groundswell, excellent energy (2671), and clean cross-off wind from the SE. This one is for experienced surfers, and it’s going to have power and shape. The long period means longer waits between sets, but the waves will be well-defined.
Wednesday the 5th of August morning is also clean with a 5ft WSW swell, 15-second period, and glassy offshore wind. Nice and clean, but not as powerful as Tuesday.
Then Thursday the 6th of August morning brings another solid option: 4ft SW swell with a very long 19-second period, clean conditions, and ENE cross-off wind. This is excellent for experienced surfers again, with that super-long period making for proper waves at this break.
After that, from Friday the 7th onward, the wind turns onshore and conditions go downhill. The last few days of the forecast look poor, with choppy onshore wind and small, weak swell.
Overall, the best bets are Sunday the 26th of July morning and Tuesday the 4th of August morning. Both offer clean, powerful groundswell for the experienced crew. Don’t waste your time on the blown-out days.
Rusty.
Short Range ForecastLight rain (total 5mm), mostly falling on Sun morning. Very mild (max 12°C on Mon morning, min 9°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 21mm), heaviest during Thu night. Very mild (max 15°C on Thu afternoon, min 9°C on Wed morning). Winds increasing (light winds from the N on Wed afternoon, fresh winds from the W by Fri afternoon). | ||||||||||||||||||||
Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | WSW 15 | WSW 14 | WSW 14 | WSW 13 | WSW 13 | WSW 12 | WSW 12 | WSW 12 | WSW 11 | WSW 11 | WSW 11 | WSW 14 | SW 13 | WSW 14 | WSW 13 | WSW 14 | W 14 | WSW 14 | WSW 14 | WSW 13 | SSW 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 4317 | 2557 | 1800 | 1430 | 1103 | 800 | 636 | 280 | 251 | 247 | 204 | 874 | 732 | 501 | 313 | 553 | 1620 | 5310 | 6857 | 3556 | 2880 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-off | cross | cross-on | cross-on | cross-on | cross | cross-on | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-on | cross-on | cross-on | cross-on | cross-off | cross-off |
High Tide | 7:40PM2.32m | 7:58AM2.26m | 8:26PM2.44m | 8:42AM2.37m | 9:07PM2.57m | 9:22AM2.47m | 9:44PM2.68m | 9:59AM2.56m | 10:20PM2.76m | 10:35AM2.61m | 10:54PM2.81m | 11:10AM2.64m | 11:28PM2.82m | ||||||||
Low Tide | 1:19PM0.71m | 1:53AM0.75m | 2:08PM0.60m | 2:38AM0.62m | 2:50PM0.49m | 3:19AM0.50m | 3:29PM0.38m | 3:56AM0.39m | 4:06PM0.29m | 4:32AM0.30m | 4:41PM0.24m | 5:07AM0.24m | 5:17PM0.22m | ||||||||
 |  |  | | | |  | | | | | | | |  |  |  | | | | | |
 | 7:24 | — | — | 7:24 | — | — | 7:24 | — | — | 7:22 | — | — | 7:22 | — | — | 7:20 | — | — | 7:20 | — | — |
 | — | 5:30 | — | — | 5:31 | — | — | 5:32 | — | — | 5:34 | — | — | 5:35 | — | — | 5:35 | — | — | 5:36 | — |
mm | 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | 11 | 4 | 2 | 4 | 3 | 4 | 3 |
Temp °C | 10 | 10 | 10 | 12 | 12 | 12 | 10 | 10 | 10 | 12 | 14 | 11 | 13 | 15 | 14 | 13 | 13 | 12 | 12 | 12 | 9 |
Feels °C | 9 | 8 | 7 | 8 | 7 | 7 | 6 | 6 | 7 | 9 | 11 | 8 | 8 | 11 | 9 | 9 | 6 | 5 | 6 | 7 | 5 |
Swell 1 Height (m) Direction Period (s) | WSW 15 | WSW 14 | WSW 14 | WSW 13 | WSW 13 | WSW 12 | WSW 12 | WSW 12 | WSW 11 | WSW 11 | WSW 11 | WSW 14 | SW 13 | WSW 14 | WSW 13 | WSW 14 | WSW 18 | — | WSW 14 | WSW 13 | SW 22 |
| kJ | 4317 | 2557 | 1800 | 1430 | 1103 | 800 | 636 | 280 | 251 | 247 | 204 | 874 | 732 | 501 | 313 | 553 | 240 | — | 6857 | 3556 | 18 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | SW 18 | SW 7 | WSW 16 | SW 18 | SW 16 | — | — | WSW 18 | WSW 16 | W 10 | — | — | — | W 23 | SW 22 |
| kJ | — | — | — | — | — | — | 13 | 75 | 26 | 12 | 125 | — | — | 124 | 177 | 18 | — | — | — | 10 | 18 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | SW 17 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | 11 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | SSW 5 | — | — | — | — | — | N 3 | NNW 3 | — | NNW 4 | NNW 6 | NW 7 | WNW 8 | W 14 | WSW 14 | — | — | SSW 12 |
| kJ | — | — | — | 22 | — | — | — | — | — | 1 | 2 | — | 13 | 53 | 218 | 237 | 1620 | 5310 | — | — | 2880 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 8 | 39 | 39 | 39 | 1 | 8 | 0 | 0 | 102 | 0 | 0 | 333 | 347 | 39 | 99 | 39 | 99 | 125 | 78 |
Best forecast wave conditions in Auckland | |||||||||||||||||||||
Best forecast wave conditions in New Zealand | |||||||||||||||||||||
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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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