
Surf Forecasts:
Waiwakaiho surf forecast from 11 Sep 2026:
- Best quality surf: Monday 14 Sep, 3AM (local time) - 8ft (2.5m), 16s period, WSW swell with cross-offshore winds.
- Most powerful swell: Saturday 12 Sep, 12AM (local time) - 15ft (4.5m), 17s period, WSW swell with 11,422 kJ wave energy.
- Next surfable swell (1★+): Monday 14 Sep, 3AM (local time) - 8ft (2.5m), 16s period with WSW swell.
Best Forecast Surf Conditions for Waiwakaiho this week:
The surf forecast for Waiwakaiho over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Sep 14) at 3AM. The primary swell is predicted to be 2.5m and 16s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Waiwakaiho in the next 16 days are 4.5m 17s and forecast to arrive on Saturday (Sep 12) at 12AM. Winds are predicted to be cross-shore at the time the swell arrives.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Mon 14th Sep) | 8ft (2.5m) 16s |
| Best Surf | 3AM (Mon 14th Sep) | 8ft (2.5m) 16s |
| Most Powerful | 12AM (Sat 12th Sep) | 15ft (4.5m) 17s |
Table - best surf conditions forecast for Waiwakaiho over the next 16 days.
The Lowdown
Righto, let’s have a yarn about what’s ahead. The surf window opens Friday the 11th with a solid pulse of long-period groundswell, but it’s a tricky one—big, powerful, and needing the right timing. The rest of the run is a mixed bag of strong swells getting chewed up by wind, with a few clean windows for experienced crew. There’s a big gap of poor conditions from around Tuesday the 15th arvo right through until the morning of Thursday the 17th, so don’t bother paddling out in that stretch. The real standout lands way out on Wednesday the 23rd arvo, and there’s a proper monster swell on Thursday the 24th morning, but it’ll be too big for most.
Let’s start with Waiwakaiho (sandbar) – Friday morning, the 11th, kicks off with a 8ft WSW swell rolling in with a very long 19-second period and a combined energy of 5524 – that’s strong energy. The wind is light from the SSW at 6 mph, blowing cross-offshore, so the surface will be clean. The water temp is 57°, which is 1° above average – about normal for this time of year. This is excellent surf for experienced surfers, but at 8ft it’s pushing into expert territory, especially with sets likely. The long period means proper groundswell, so the sandbar might see some heavy, tapering walls – but it could be a bit straight for a beach break. Crowds can be around sometimes, but early morning with that size and period, you might have some room.
Friday afternoon goes pear-shaped – the wind swings to the WSW at 19 mph, cross, and it’ll get lumpy and chop. Swell holds at 8ft and 18 seconds but the quality drops fast. Saturday the 12th through to Monday the 14th is all cross-shore wind and messy conditions – plenty of swell (7ft to 15ft) but the wind is fresh and cross, making for bumpy, onshore-leaning junk. Not worth it.
Tuesday the 15th morning is a last chance for a small, clean-ish window – 5ft WSW swell at 14 seconds, light SW wind at 9 mph, cross. Combined energy is only 1100, so it’s moderate, weak energy. It’d be small and weak, but clean enough for a longboard or a mellow session. Afternoon goes to cross-on and chop, then the next few days are a write-off with onshore wind and poor quality.
Thursday the 17th morning brings back the goods – a 10ft WSW swell with 15-second period and 3499 combined energy (strong). Light SSW wind at 6 mph, cross-off, and clean. Again, 10ft is expert-only, but the setup is clean and powerful. This could be a gem for the crew who can handle it. Afternoon, a slight cross-on breeze creeps in, so hit the morning.
Friday the 18th morning is another clean shot – 7ft WSW, 16 seconds, 3613 energy, with a gentle S wind at 9 mph cross-off. That’s excellent for experienced surfers, and a bit more manageable than the 10ft days. Afternoon gets ruined by fresh cross-wind again.
Then from Saturday the 19th arvo through to Tuesday the 22nd, it’s pretty average – cross and cross-on winds, lumpy conditions, with the odd bit of size (15ft on Tuesday morning) but never clean.
Now, the real standout is Wednesday the 23rd afternoon. The swell is 10ft from the W with 13-second period, combined energy 4429 – strong. The wind swings to SSE at 12 mph, offshore, and the conditions are clean. This is excellent surf for experienced surfers – the offshore wind will groom those W swells into clean, lined-up waves at Waiwakaiho. This is your best bet of the whole run. Crowds are sometimes, but with that quality, expect a few out.
Thursday the 24th morning sees a massive 18ft WSW swell with 14-second period and 10953 combined energy – that’s very strong wave energy. But the forecast says the swell is too big for this break, even for experts. The wind is light from the NE at 3 mph, cross, but that size is dangerous and unruly. Steer clear unless you’re a tow-in pro.
After that, the rest of the period fades into cross-on slop and smaller, choppy surf. Not much to get excited about.
So, if you’re keen, hit Friday 11th morning for the first punch, but the true highlight is Wednesday 23rd afternoon – that offshore wind and solid groundswell will be magic. Be ready early for Thursday 17th morning too. Everything else is a gamble with the wind.
Rusty.
Short Range ForecastMostly dry. Very mild (max 13°C on Fri afternoon, min 10°C on Fri morning). Winds decreasing (strong winds from the SW on Fri night, light winds from the SSW by Sun night). | Days 4-6 Weather SummaryMostly dry. Very mild (max 14°C on Mon afternoon, min 10°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | |||||||||||||||
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 19 | WSW 18 | WSW 17 | WSW 10 | WSW 11 | WSW 16 | WSW 17 | WSW 17 | WSW 16 | WSW 16 | WSW 15 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 13 | WSW 13 | W 12 | W 10 | W 16 | WSW 14 |
Wave Graph | |||||||||||||||||||||
4877 | 4701 | 11422 | 3361 | 2642 | 3051 | 2426 | 2015 | 1697 | 2696 | 2419 | 1797 | 886 | 732 | 460 | 269 | 212 | 748 | 800 | 2096 | 2221 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross | cross | cross | cross | cross | cross | cross | glassy | cross | cross | cross | cross-on | cross-on | cross-on | on | on | cross-on | on | cross-on |
High Tide | 9:34AM3.15m | 9:52PM3.33m | 10:13AM3.21m | 10:30PM3.32m | 10:50AM3.21m | 11:06PM3.24m | 11:26AM3.14m | 11:42PM3.09m | 12:03PM3.01m | 00:17AM2.90m | 12:40PM2.84m | 00:55AM2.69m | 1:20PM2.64m | 1:38AM2.47m | |||||||
Low Tide | 3:42PM0.01m | 4:07AM-0.06m | 4:23PM-0.01m | 4:45AM-0.05m | 5:01PM0.05m | 5:22AM0.04m | 5:39PM0.18m | 5:58AM0.19m | 6:17PM0.35m | 6:34AM0.39m | 6:56PM0.56m | 7:13AM0.60m | 7:39PM0.78m | ||||||||
6:31 | — | — | 6:28 | — | — | 6:28 | — | — | 6:26 | — | — | 6:24 | — | — | 6:22 | — | — | 6:20 | — | — | |
— | 6:08 | — | — | 6:09 | — | — | 6:10 | — | — | 6:12 | — | — | 6:13 | — | — | 6:14 | — | — | 6:15 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 1 |
Temp °C | 12 | 13 | 12 | 12 | 12 | 11 | 13 | 13 | 12 | 13 | 14 | 12 | 13 | 14 | 12 | 14 | 13 | 13 | 15 | 13 | 13 |
Feels °C | 6 | 6 | 5 | 5 | 4 | 4 | 7 | 8 | 8 | 9 | 9 | 9 | 10 | 10 | 9 | 10 | 10 | 10 | 11 | 8 | 9 |
Swell 1 Height (m) Direction Period (s) | WSW 19 | WSW 18 | — | WSW 16 | WSW 16 | WSW 16 | WSW 17 | WSW 17 | WSW 16 | WSW 16 | WSW 15 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 13 | WSW 13 | W 12 | W 10 | W 16 | WSW 14 |
4877 | 4701 | — | 1596 | 2642 | 3051 | 2426 | 2015 | 1697 | 2696 | 2419 | 1797 | 886 | 732 | 460 | 269 | 212 | 748 | 800 | 2096 | 2221 | |
Swell 2 Height (m) Direction Period (s) | WSW 10 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 18 | — | W 18 | W 10 | — |
647 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 6 | — | 162 | 65 | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | WSW 11 | WSW 17 | WSW 10 | WSW 11 | WSW 10 | WSW 9 | WSW 9 | WSW 9 | — | — | — | WSW 7 | WSW 7 | WSW 7 | WSW 6 | W 6 | — | — | — | — |
— | 855 | 11422 | 3361 | 2479 | 1690 | 1662 | 1332 | 848 | — | — | — | 172 | 136 | 108 | 98 | 86 | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 239 | 215 | 178 | 215 | 244 | 215 | 108 | 11 | 11 | 257 | 11 | 11 | 264 | 250 | 108 | 250 | 108 | 0 | 26 | 262 |
Best forecast wave conditions in Taranaki | |||||||||||||||||||||
Best forecast wave conditions in New Zealand | |||||||||||||||||||||
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Information about the Waiwakaiho Surf forecast
The above surf forecast table for Waiwakaiho provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Waiwakaiho can be found by selecting the local surf guide option on the grey menu. Our Waiwakaiho 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 (Waiwakaiho) 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 Waiwakaiho 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 Taranaki? If you are looking for accommodation near Waiwakaiho, camping, hotels and holiday cottages in Taranaki, consider staying in New Plymouth which is 4 km (2 miles) away.










