Surf Forecasts:
O'Neills Bay surf forecast from 14 Jul 2026:
- Best quality surf: Sunday 19 Jul, 12PM (local time) - 7.5ft (2.3m), 17s period, SW swell with cross-offshore winds.
- Most powerful swell: Sunday 19 Jul, 6AM (local time) - 8ft (2.4m), 18s period, SW swell with 3,345 kJ wave energy.
- Next surfable swell (1★+): Sunday 19 Jul, 12PM (local time) - 7.5ft (2.3m), 17s 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 Sunday (Jul 19) at 12PM. The primary swell is predicted to be 2.3m and 17s 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 2.4m 18s and forecast to arrive on Sunday (Jul 19) at 6AM. 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 3s period and expected on Monday (Jul 20) at 6AM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12PM (Sun 19th Jul) | 7.5ft (2.3m) 17s |
| Best Surf | 12PM (Sun 19th Jul) | 7.5ft (2.3m) 17s |
| Most Powerful | 6AM (Sun 19th Jul) | 8ft (2.4m) 18s |
Table - best surf conditions forecast for O'Neills Bay over the next 16 days.
The Lowdown
G’day, Rusty here. Let’s break down what’s going on at O’Neills Bay. The next couple of weeks have a bit of action, but you’ve gotta be patient. Water temp is 58°F, right about average for the season.
Tuesday the 14th kicks off with a 4ft swell out of the WNW, short period at 8 seconds, and a light northerly cross-off breeze. Clean enough, but the energy is weak (344). It’s rideable, but nothing special. Tuesday afternoon drops to 2ft with cross-on wind – forget it.
Wednesday the 15th morning brings a 4ft swell from the WSW, but the period jumps to 18 seconds – that’s a really long groundswell. Energy is moderate (1649), but the wind is cross, so it’ll be a bit bumpy. That long period is better for a reef or point, and O’Neills is a beach, so it may not hold its shape well. Afternoon gets messy with 8ft and cross-on wind.
Thursday the 16th and Friday the 17th are blown out – 7ft to 7ft swell, cross-on winds, and choppy. Saturday the 18th stays onshore and lumpy with 8ft – no good.
Here’s the one to circle. Sunday the 19th afternoon is the standout. Swell is 7ft from the SW, period 16 seconds, and the wind goes light offshore from the east. That’s 2506 combined energy and clean, powerful lines. This is for experienced surfers only – that size will have some serious punch. Worth the wait.
Monday the 20th keeps it going with 5ft to 6ft SW swell, light offshore or cross-off east winds, and clean conditions. Energy drops to 956-1142, so it’s more user-friendly. Still fun, but not the same bite as Sunday.
From Tuesday the 21st through Friday the 24th, the swell fades to under 4ft, with energy under 532. Wind stays favorable, but there’s just not enough size. Saturday the 25th to Monday the 27th is a mix of small pulses and messy wind – not worth the drive.
Way out, Wednesday the 29th shows a massive 13ft swell with energy of 4845 in the morning, rising to 6812 in the arvo. That’s huge – experts only, and with cross-on wind, it’ll be a beast. Might be more of a kite session.
Best call: Sunday afternoon the 19th through Monday the 20th. Sunday arvo is the winner – clean, powerful, and offshore. Get on it.
Rusty.
Short Range ForecastMostly dry. Very mild (max 15°C on Tue afternoon, min 12°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummarySome drizzle, heaviest during Fri morning. Very mild (max 14°C on Sat morning, min 10°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | |||||||||||||||
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) | WNW 8 | WNW 8 | W 13 | WSW 18 | WSW 16 | WSW 15 | WSW 16 | WSW 16 | WSW 15 | WSW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 14 | SW 17 | SW 16 | WSW 16 | WSW 14 | WSW 14 | SW 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 207 | 136 | 483 | 1093 | 2943 | 2526 | 2028 | 2002 | 1516 | 1508 | 2175 | 2425 | 2246 | 1956 | 1533 | 3269 | 2506 | 2007 | 1142 | 947 | 671 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | cross-on | cross | cross-on | cross | cross-on | cross-on | on | cross-on | cross-on | on | on | on | cross-on | cross-on | off | cross-off | cross-off | off | cross-off |
High Tide | 9:03AM2.75m | 9:32PM2.99m | 9:54AM2.82m | 10:21PM3.08m | 10:43AM2.85m | 11:08PM3.09m | 11:31AM2.83m | 11:53PM3.03m | 12:17PM2.75m | 00:38AM2.90m | 1:02PM2.64m | 1:22AM2.73m | 1:49PM2.50m | 2:08AM2.54m | |||||||
Low Tide | 3:14PM0.07m | 3:48AM0.07m | 4:05PM-0.01m | 4:39AM0.00m | 4:54PM-0.03m | 5:27AM-0.01m | 5:41PM0.01m | 6:14AM0.05m | 6:28PM0.12m | 6:59AM0.16m | 7:14PM0.28m | 7:45AM0.30m | 8:02PM0.46m | ||||||||
 |  |  | | | | | |  |  | |  | |  | | | | | | | | |
 | 7:31 | — | — | 7:31 | — | — | 7:31 | — | — | 7:31 | — | — | 7:31 | — | — | 7:30 | — | — | 7:28 | — | — |
 | — | 5:22 | — | — | 5:23 | — | — | 5:23 | — | — | 5:24 | — | — | 5:25 | — | — | 5:25 | — | — | 5:27 | — |
mm | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 15 | 14 | 15 | 15 | 14 | 15 | 15 | 14 | 13 | 13 | 13 | 14 | 13 | 13 | 12 | 13 | 11 | 12 | 13 | 12 |
Feels °C | 12 | 14 | 14 | 13 | 13 | 13 | 12 | 12 | 10 | 9 | 9 | 11 | 10 | 9 | 8 | 9 | 10 | 7 | 8 | 9 | 9 |
Swell 1 Height (m) Direction Period (s) | WNW 8 | WNW 8 | W 13 | WSW 18 | WSW 16 | WSW 15 | WSW 16 | WSW 16 | WSW 15 | — | SW 15 | SW 15 | SW 15 | SW 15 | SW 14 | SW 17 | SW 16 | WSW 16 | WSW 14 | WSW 14 | SW 14 |
| kJ | 207 | 131 | 483 | 1093 | 2943 | 2526 | 2028 | 2002 | 1516 | — | 2175 | 2425 | 2246 | 1956 | 1533 | 3269 | 2506 | 2007 | 1142 | 947 | 671 |
Swell 2 Height (m) Direction Period (s) | WSW 13 | WSW 12 | WSW 18 | W 13 | — | — | — | — | — | — | — | — | — | SW 24 | SW 19 | — | — | — | — | W 22 | W 21 |
| kJ | 118 | 136 | 214 | 556 | — | — | — | — | — | — | — | — | — | 22 | 930 | — | — | — | — | 9 | 9 |
Swell 3 Height (m) Direction Period (s) | SW 22 | SW 20 | NW 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 19 | 104 | 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | WSW 15 | — | — | — | — | — | — | — | — | ESE 3 | — | — |
| kJ | — | — | — | — | — | — | — | — | — | 1508 | — | — | — | — | — | — | — | — | 3 | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 67 | 49 | 113 | 304 | 161 | 119 | 116 | 39 | 39 | 67 | 39 | 39 | 67 | 78 | 62 | 0 | 1 | 1 | 0 | 0 |
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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