Surf Forecasts:
Wainui Bay Chalet surf forecast from 15 Aug 2026:
- Best quality surf: Tuesday 18 Aug, 12AM (local time) - 10ft (3.0m), 9s period, S swell with cross-shore winds.
- Most powerful swell: Tuesday 18 Aug, 9PM (local time) - 16ft (5.0m), 11s period, S swell with 6,651 kJ wave energy.
- Next surfable swell (1★+): Tuesday 18 Aug, 12AM (local time) - 10ft (3.0m), 9s period with S swell.
Best Forecast Surf Conditions for Wainui Bay Chalet this week:
The surf forecast for Wainui Bay Chalet over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Aug 18) at 12AM. The primary swell is predicted to be 3.0m and 9s period with a secondary swell of 2.3m and 9s. Another secondary swell of 0.4m and 15s is also forecast. The wind is predicted to be cross-shore as the swell arrives.
The most powerful waves expected at Wainui Bay Chalet in the next 16 days are 5.0m 11s and forecast to arrive on Tuesday (Aug 18) at 9PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 2s period and expected on Friday (Aug 21) at 9PM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Tue 18th Aug) | 10ft (3.0m) 9s |
| Best Surf | 12AM (Tue 18th Aug) | 10ft (3.0m) 9s |
| Most Powerful | 9PM (Tue 18th Aug) | 16ft (5.0m) 11s |
Table - best surf conditions forecast for Wainui Bay Chalet over the next 16 days.
The Lowdown
Alright, folks, Rusty here. Let’s be straight with you: the next couple of weeks are a real mixed bag. We’ve got a solid window of surf coming up, but it’s sandwiched between some pretty wild conditions. The ocean is gonna be angry before it gets friendly.
The first real chance to get wet kicks off on Monday the 18th. There’s a solid 10ft of south swell in the water, but the wind is going to be howling from the southwest. It’s gonna be lumpy and messy, too big for most of us to handle at Wainui Bay Chalet (Wainui-Bay-Chalet). The energy is moderate, sitting at (1972), but it’s just not clean. The swell is predicted to be too big for this break, so I’d give it a miss unless you’re seriously experienced.
We get another pulse on Wednesday the 20th, with a 10ft SSW groundswell at 13 seconds. The wind swings to the west-southwest and drops off a touch. It’s cross-off, and the report says it’ll be clean. The energy is strong at (3859), and for a moment, this looks like the best of the week. But again, the size is the problem. It’s a heavy 10-foot wave, and for this spot, that’s just too much. It’s going to be a washing machine.
Then comes the calm. A serious drop-off. From Thursday afternoon through the start of the next week, we’re looking at waves that are too small to bother with. There’s a good 4-5 day gap where you’re better off leaving the board in the car. A bit of knee-high slop and some clean but tiny conditions. The energy is weak, falling to under (100) at times. This is a real lull.
But hold on. Things start to perk up around Tuesday the 26th. It’s a longer range call, so don’t book your flights yet, but the models are showing a 5ft south swell with a bit more punch, energy at (504). The wind is light from the north and it’s cross-off, keeping the surface clean. This is the one that gets the stoke going. It’s not massive, but it looks like a proper, rideable wave and the conditions finally line up. This is the standout of the whole forecast. The water’s also running a bit colder than normal for this time of year, down about 2°F, so a decent hood is in order.
After that, it’s a bit of a mix-up. A few onshore days and some smaller swells. The period drops off, and the quality fades. There’s a chance for a clean morning on Saturday the 29th with a 5ft south swell and light offshore wind, but it’s short-lived. It’s a fade-out rather than a big finish.
So, to sum it up: the swell window is early next week, but it’s too big and messy. The real sweet spot is that Tuesday the 26th. That’s the day to circle on the calendar. The rest is either too big, too small, or blown out. Keep your eyes on that Tuesday.
-Rusty.
Short Range ForecastHeavy rain (total 31mm), heaviest during Sun afternoon. Very mild (max 12°C on Sun morning, min 7°C on Mon night). Winds increasing (moderate winds from the SW on Sun morning, near gales from the SSW by Tue night). | Days 4-6 Weather SummaryLight rain (total 7mm), mostly falling on Wed night. Very mild (max 14°C on Fri morning, min 8°C on Thu night). Winds decreasing (strong winds from the SSW on Wed morning, calm by Fri morning). | ||||||||||||||||||||
Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | |||||||||||||||
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) | E 8 | SSW 16 | SSE 10 | SSE 10 | S 10 | S 9 | S 9 | SSE 10 | SSE 12 | SSE 12 | S 12 | S 14 | SSW 13 | SE 9 | ESE 8 | ESE 8 | SSE 11 | SSE 15 | SSE 13 | SSE 12 | SSE 12 |
Wave Graph | |||||||||||||||||||||
205 | 229 | 1088 | 1249 | 2375 | 1655 | 1283 | 1461 | 3754 | 3797 | 5345 | 3857 | 2809 | 396 | 126 | 90 | 214 | 485 | 195 | 115 | 123 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross-on | cross | cross | cross-off | cross-on | off | off | glassy | off | off | glassy | off |
High Tide | 8:51PM2.10m | 9:16AM2.02m | 9:37PM2.07m | 10:02AM2.01m | 10:22PM2.02m | 10:47AM1.96m | 11:06PM1.95m | 11:32AM1.90m | 11:48PM1.87m | 12:17PM1.84m | 00:30AM1.79m | 1:01PM1.78m | 1:14AM1.71m | ||||||||
Low Tide | 2:37PM0.43m | 3:10AM0.46m | 3:25PM0.47m | 3:54AM0.48m | 4:11PM0.52m | 4:39AM0.51m | 4:56PM0.58m | 5:24AM0.56m | 5:42PM0.65m | 6:09AM0.62m | 6:28PM0.72m | 6:53AM0.69m | 7:17PM0.77m | ||||||||
6:52 | — | — | 6:50 | — | — | 6:50 | — | — | 6:48 | — | — | 6:47 | — | — | 6:46 | — | — | 6:45 | — | — | |
— | 5:30 | — | — | 5:31 | — | — | 5:32 | — | — | 5:32 | — | — | 5:34 | — | — | 5:35 | — | — | 5:36 | — | |
mm | — | 7 | 7 | 2 | 1 | 2 | — | 5 | 7 | 1 | 1 | 5 | — | — | — | — | — | — | — | — | — |
Temp °C | 12 | 11 | 10 | 9 | 9 | 9 | 10 | 9 | 8 | 9 | 10 | 10 | 12 | 12 | 10 | 14 | 14 | 11 | 14 | 16 | 11 |
Feels °C | 7 | 4 | 1 | 0 | 0 | 0 | 0 | -1 | -3 | -1 | 2 | 3 | 6 | 7 | 7 | 12 | 12 | 7 | 11 | 14 | 7 |
Swell 1 Height (m) Direction Period (s) | E 8 | E 9 | ESE 9 | ESE 9 | SE 9 | SE 9 | SSE 9 | E 18 | — | — | SSE 12 | SSE 14 | SE 10 | SE 9 | ESE 8 | ESE 8 | SSE 11 | SSE 15 | SSE 13 | SSE 12 | SSE 12 |
205 | 194 | 343 | 265 | 1033 | 844 | 623 | 6 | — | — | 3010 | 2803 | 499 | 396 | 126 | 90 | 173 | 485 | 195 | 115 | 123 | |
Swell 2 Height (m) Direction Period (s) | S 5 | SSE 16 | S 19 | S 17 | ESE 10 | SSE 15 | SSE 14 | — | — | — | — | — | SSE 13 | SSE 13 | SSE 8 | SSE 9 | SSE 16 | ESE 10 | SE 10 | SE 10 | ESE 13 |
41 | 87 | 66 | 142 | 106 | 72 | 40 | — | — | — | — | — | 482 | 170 | 96 | 79 | 214 | 63 | 48 | 24 | 16 | |
Swell 3 Height (m) Direction Period (s) | SSE 18 | SSW 16 | SE 15 | — | S 16 | — | E 9 | — | — | — | — | — | SE 12 | E 13 | SSE 12 | SSE 11 | ESE 8 | — | SE 10 | SE 14 | ESE 9 |
103 | 229 | 9 | — | 126 | — | 26 | — | — | — | — | — | 69 | 3 | 46 | 70 | 45 | — | 45 | 8 | 8 | |
Wind waves Height (m) Direction Period (s) | SSW 5 | S 6 | SSE 10 | SSE 10 | S 10 | S 9 | S 9 | SSE 10 | SSE 12 | SSE 12 | S 12 | S 14 | SSW 13 | — | — | NNW 2 | — | NW 3 | W 4 | — | N 3 |
90 | 72 | 1088 | 1249 | 2375 | 1655 | 1283 | 1461 | 3754 | 3797 | 5345 | 3857 | 2809 | — | — | 1 | — | 2 | 2 | — | 1 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 64 | 64 | 115 | 118 | 118 | 64 | 115 | 121 | 121 | 118 | 136 | 49 | 38 | 47 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Gisborne and Mahia | |||||||||||||||||||||
Best forecast wave conditions in New Zealand | |||||||||||||||||||||
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Information about the Wainui Bay Chalet Surf forecast
The above surf forecast table for Wainui Bay Chalet provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Wainui Bay Chalet can be found by selecting the local surf guide option on the grey menu. Our Wainui Bay Chalet 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 (Wainui Bay Chalet) 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 Wainui Bay Chalet 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.











