Surf Forecasts:
Port Waikato-The Reef surf forecast from 18 Aug 2026:
- Best quality surf: Wednesday 19 Aug, 6PM (local time) - 8ft (2.5m), 16s period, SW swell with cross-offshore winds.
- Most powerful swell: Monday 24 Aug, 3PM (local time) - 10ft (3.0m), 16s period, WSW swell with 4,494 kJ wave energy.
- Next surfable swell (1★+): Wednesday 19 Aug, 6PM (local time) - 8ft (2.5m), 16s period with SW swell.
Best Forecast Surf Conditions for Port Waikato-The Reef this week:
The surf forecast for Port Waikato-The Reef over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Aug 19) at 6PM. 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 Port Waikato-The Reef in the next 16 days are 3.0m 16s and forecast to arrive on Monday (Aug 24) at 3PM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Wed 19th Aug) | 8ft (2.5m) 16s |
| Best Surf | 6PM (Wed 19th Aug) | 8ft (2.5m) 16s |
| Most Powerful | 3PM (Mon 24th Aug) | 10ft (3.0m) 16s |
Table - best surf conditions forecast for Port Waikato-The Reef over the next 16 days.
The Lowdown
G’day, I’m Rusty. Let’s have a look at what’s on the cards for the next couple of weeks.
The surf story starts on Wednesday the 19th, but it’s a bit of a messy opener. We’ve got a solid 8 ft SW swell (combined energy 1914) rolling in, but the wind is a cross-off at 16 mph and the tide is playing games, so it’s a marginal call. Wednesday afternoon stays on the average side with 8 ft SW swell and cross winds. The real spark doesn’t show until Thursday the 20th.
Thursday morning is the first standout. Port Waikato-The Reef sees a 7 ft SW groundswell, coming in at a long 14 seconds, with glassy conditions (3 mph from the SSE). The water temp is 58°, pretty normal for the time of year. This is a reef break that’s inconsistent, so when it lines up, you grab it. This morning session is clean and good for experienced surfers – but with that long period, it might run a bit straight on the beach, but on this reef it should shape up nicely. Crowds are possible here, so get in early.
The rest of the week goes downhill. Friday through to Sunday the 23rd is a write-off. Onshore winds, building swell, and sloppy conditions. Sunday morning sees a rough 10 ft W swell (1926 combined energy) with a short 9-second period and strong winds – not one for the paddle crew, could be more interesting for kite surfing. That rough patch runs until Tuesday the 25th, with messy, onshore winds and average surf.
The end of the month offers a flicker. Sunday the 30th and Monday the 31st both have excellent morning windows. Sunday morning has a small but clean 4 ft SW groundswell with a very long 18-second period (combined energy 1566), glassy and light winds from the ENE. It’s classy, but with that period, think point break lines, not dumpy beach waves. Monday the 31st afternoon turns even better: 6 ft SW at 14 seconds, with a light offshore ESE breeze at 3 mph – clean as a whistle.
Then spring kicks in. On the 1st of September, a moderate offshore ESE wind at 16 mph combines with a 4 ft SW swell – not huge, but clean and fun for the experienced crew. But the big one lands on Wednesday the 2nd: a 10 ft SW swell with a short 9-second period (combined energy 1676), offshore ESE wind at 12 mph. This is solid, but over 8 ft, so it’s strictly for the pros. The real jewel is Thursday the 3rd: a 10 ft SW groundswell with a very long 16-second period, glassy conditions (3 mph from the east), and a combined energy of 4826. That’s the best on offer, full stop. Clean, powerful, and perfect for the reef. Just keep in mind it’s a 16-day call, so long-range and promising but not set in stone.
From there, the surf fades out with a combination of cross-onshore winds and smaller swell, leaving the window pretty quiet after the 3rd.
Rusty.
Short Range ForecastMostly dry. Very mild (max 13°C on Thu night, min 9°C on Wed morning). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 7mm), mostly falling on Sun morning. Very mild (max 14°C on Sat morning, min 12°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | |||||||||||||||
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) | SW 12 | SW 12 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | WSW 13 | WSW 14 | SW 14 | SW 14 | WNW 7 | W 9 | WSW 9 | WSW 8 | WSW 16 | WSW 16 | WSW 14 | WSW 14 | WSW 14 | WSW 14 |
Wave Graph | |||||||||||||||||||||
1493 | 1818 | 2517 | 1761 | 1470 | 1042 | 854 | 820 | 862 | 450 | 264 | 485 | 1528 | 739 | 547 | 1257 | 4494 | 3385 | 3183 | 2799 | 2008 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | off | glassy | cross | cross-on | on | on | cross-on | on | on | on | on | cross-on | cross | cross-on | cross-on | cross-on | on | on | on |
High Tide | 1:56PM3.10m | 2:16AM3.00m | 2:46PM2.93m | 3:16AM2.81m | 3:55PM2.79m | 4:35AM2.71m | 5:26PM2.77m | 5:56AM2.73m | 6:38PM2.88m | 7:01AM2.84m | 7:30PM3.04m | 7:53AM3.00m | 8:13PM3.23m | ||||||||
Low Tide | 8:16PM1.17m | 8:36AM1.13m | 9:10PM1.36m | 9:31AM1.32m | 10:19PM1.49m | 10:49AM1.43m | 11:47PM1.50m | 12:16PM1.39m | 00:59AM1.37m | 1:19PM1.23m | 1:49AM1.18m | 2:07PM1.03m | 2:29AM0.98m | ||||||||
7:00 | — | — | 6:58 | — | — | 6:58 | — | — | 6:56 | — | — | 6:54 | — | — | 6:54 | — | — | 6:52 | — | — | |
— | 5:49 | — | — | 5:50 | — | — | 5:50 | — | — | 5:51 | — | — | 5:52 | — | — | 5:52 | — | — | 5:53 | — | |
mm | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 4 | 1 | — | — | — | — | — | — | — |
Temp °C | 9 | 12 | 11 | 11 | 12 | 13 | 13 | 13 | 13 | 14 | 14 | 14 | 14 | 14 | 13 | 14 | 14 | 13 | 14 | 14 | 14 |
Feels °C | 2 | 8 | 7 | 8 | 8 | 10 | 9 | 9 | 11 | 10 | 10 | 9 | 10 | 11 | 10 | 11 | 11 | 12 | 12 | 11 | 12 |
Swell 1 Height (m) Direction Period (s) | SW 12 | WSW 16 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | WSW 13 | WSW 14 | SW 14 | SW 14 | WSW 13 | WSW 19 | WSW 9 | WSW 15 | WSW 16 | WSW 16 | WSW 14 | WSW 14 | WSW 14 | WSW 14 |
1493 | 512 | 2517 | 1761 | 1470 | 1042 | 854 | 820 | 862 | 450 | 264 | 149 | 145 | 739 | 252 | 1257 | 4494 | 3385 | 3183 | 2799 | 2008 | |
Swell 2 Height (m) Direction Period (s) | WSW 18 | WSW 16 | — | — | — | — | — | WSW 16 | — | — | — | WSW 18 | WSW 16 | NW 7 | WSW 18 | WNW 8 | — | — | — | — | — |
209 | 443 | — | — | — | — | — | 104 | — | — | — | 67 | 102 | 112 | 182 | 22 | — | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | WSW 16 | WSW 17 | W 9 | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | 151 | 313 | 15 | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | S 6 | SW 12 | — | — | — | — | — | — | — | W 5 | W 6 | WNW 7 | W 9 | — | WSW 8 | WSW 11 | — | — | — | — | — |
212 | 1818 | — | — | — | — | — | — | — | 40 | 188 | 485 | 1528 | — | 547 | 855 | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 102 | 102 | 0 | 0 | 54 | 102 | 102 | 144 | 146 | 177 | 289 | 289 | 153 | 107 | 210 | 284 | 284 | 102 | 274 | 289 | 274 |
Best forecast wave conditions in Raglan and West Waikato | |||||||||||||||||||||
Best forecast wave conditions in New Zealand | |||||||||||||||||||||
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Information about the Port Waikato-The Reef Surf forecast
The above surf forecast table for Port Waikato-The Reef provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Port Waikato-The Reef can be found by selecting the local surf guide option on the grey menu. Our Port Waikato-The Reef 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 (Port Waikato-The Reef) 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 Port Waikato-The Reef 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.
Port Waikato-The Reef is 31 km (19 miles) from the city of Pukekohe East. If you plan a holiday in Raglan and West Waikato, look for hotels and other accommodation in Pukekohe East. Pukekohe East has rooms for a wide range of budgets as well as car hire and transport links.











