
Surf Forecasts:
Wharariki Beach surf forecast from 12 Aug 2026:
- Best quality surf: Saturday 15 Aug, 3AM (local time) - 5ft (1.6m), 18s period, W swell with offshore winds.
- Most powerful swell: Sunday 16 Aug, 3AM (local time) - 6ft (1.9m), 16s period, W swell with 1,817 kJ wave energy.
- Next surfable swell (1★+): Thursday 13 Aug, 6PM (local time) - 4.5ft (1.3m), 11s period with WNW swell.
Best Forecast Surf Conditions for Wharariki Beach this week:
The surf forecast for Wharariki Beach over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Aug 13) at 6PM. The primary swell is predicted to be 0.8m and 17s period with a secondary swell of 1.3m and 11s. Another secondary swell of 0.9m and 6s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Wharariki Beach in the next 16 days are 1.9m 16s and forecast to arrive on Sunday (Aug 16) at 3AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 7s period and expected on Sunday (Aug 16) at 6PM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Thu 13th Aug) | 4.5ft (1.3m) 11s |
| Best Surf | 3AM (Sat 15th Aug) | 5ft (1.6m) 18s |
| Most Powerful | 3AM (Sun 16th Aug) | 6ft (1.9m) 16s |
Table - best surf conditions forecast for Wharariki Beach over the next 16 days.
The Lowdown
Alright folks, Rusty here, let's get into it.
First up, we’ve got a bit of a wait. The early part of the week is looking pretty average. Nothing worth paddling out for Wednesday or Thursday the 12th and 13th. The wind is messy and the wave quality is just not there. Hold your horses.
But then, things start to look up. Friday the 14th morning, we’ve got some clean surf coming in at Wharariki Beach. It’s a bit smaller, around 3ft from the west, but the wind is a clean cross-off, and the swell period is a very long 17 seconds. That’s proper groundswell energy. The combined swell energy is moderate at 588. Water temp is sitting at 57°, which is pretty much normal for this time of year. Friday afternoon gets even better with glassy conditions and a 2ft west swell.
Now, the standout. Saturday the 15th morning is the one to circle on the calendar. We’re looking at a clean 6ft west swell, a period of 16 seconds, and glassy conditions with a light southwest wind. The combined energy is strong at 1731. This is an excellent window for experienced surfers. The waves will have real power and shape, but that size might be a bit much for beginners. The west swell is right in the sweet spot for this exposed break, and with crowds never being an issue, you should have plenty of room.
Sunday the 16th still has some size, around 6ft to 6ft from the west, but the rain and wind, especially a strong 30 km/h cross-off on Sunday morning, are going to mess with the surface. It’s not the clean, glassy goodness of Saturday.
Early next week, Monday the 17th morning brings back some clean conditions with a 4ft west swell and glassy wind. It’s a solid option. The rest of that week has some smaller, clean windows, but nothing that shouts "drop everything."
Looking further out, the second week is a bit of a mixed bag. There’s a big pulse of energy forecast for the 25th and 26th, with swell heights well over 8ft and combined energy in the thousands. But the wind is going to be a major problem, mostly onshore or cross-shore and strong. On the 25th afternoon, the swell is predicted to be too big for this break anyway. The real potential comes on the 27th, Thursday morning. We’re looking at a solid 7ft swell from the west-northwest, but the wind is forecast to be light and offshore from the south. That’s a promising combination for experienced surfers if the forecasts hold.
So, your best bet is next Saturday the 15th. The second candidate is the 27th, but that’s a long-range call, so keep an eye on it.
Rusty.
Short Range ForecastHeavy rain (total 27mm), heaviest during Wed night. Very mild (max 14°C on Thu morning, min 11°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 11mm), heaviest on Sat night. Very mild (max 13°C on Sat afternoon, min 7°C on Sun morning). Mainly fresh winds. | |||||||||||||||||||
Wed 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | ||||||||||||||
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) | N 7 | N 8 | N 7 | WNW 12 | W 16 | W 17 | W 18 | W 18 | W 16 | W 16 | W 16 | W 15 | W 15 | W 15 | W 15 | W 14 | W 14 | W 14 | W 14 | W 14 |
Wave Graph | ||||||||||||||||||||
134 | 290 | 333 | 509 | 333 | 438 | 298 | 875 | 1688 | 1397 | 1144 | 1657 | 1241 | 971 | 711 | 598 | 482 | 183 | 534 | 456 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | on | cross-on | cross-off | cross-off | glassy | cross-off | glassy | cross | glassy | cross-off | cross | glassy | glassy | cross-off | cross-off | glassy | cross | off |
High Tide | 9:47PM3.40m | 10:11AM3.27m | 10:32PM3.51m | 10:56AM3.34m | 11:15PM3.53m | 11:38AM3.34m | 11:56PM3.47m | 12:18PM3.27m | 00:35AM3.33m | 12:58PM3.14m | 1:15AM3.13m | 1:38PM2.97m | 1:55AM2.90m | |||||||
Low Tide | 4:03AM0.04m | 4:19PM0.01m | 4:48AM-0.06m | 5:03PM-0.04m | 5:30AM-0.08m | 5:45PM-0.01m | 6:11AM-0.01m | 6:26PM0.10m | 6:50AM0.13m | 7:07PM0.28m | 7:30AM0.32m | 7:48PM0.49m | ||||||||
— | — | 7:20 | — | — | 7:20 | — | — | 7:18 | — | — | 7:16 | — | — | 7:16 | — | — | 7:15 | — | — | |
5:45 | — | — | 5:46 | — | — | 5:47 | — | — | 5:49 | — | — | 5:50 | — | — | 5:51 | — | — | 5:52 | — | |
mm | 1 | 17 | 8 | 1 | — | — | — | — | — | — | 7 | 2 | 2 | — | — | — | — | — | — | — |
Temp °C | 12 | 13 | 14 | 14 | 13 | 13 | 12 | 12 | 12 | 13 | 13 | 7 | 10 | 9 | 9 | 10 | 9 | 10 | 11 | 11 |
Feels °C | 7 | 11 | 10 | 13 | 11 | 11 | 11 | 9 | 11 | 12 | 11 | 0 | 6 | 5 | 7 | 6 | 5 | 6 | 5 | 6 |
Swell 1 Height (m) Direction Period (s) | N 7 | N 8 | NW 10 | WNW 12 | WNW 10 | WNW 9 | W 9 | W 18 | W 16 | W 16 | W 16 | W 15 | W 15 | W 15 | W 15 | W 14 | W 14 | W 14 | W 14 | W 14 |
134 | 290 | 286 | 509 | 260 | 146 | 101 | 875 | 1688 | 1397 | 1144 | 1657 | 1241 | 971 | 711 | 598 | 482 | 183 | 534 | 456 | |
Swell 2 Height (m) Direction Period (s) | NW 12 | NW 10 | W 17 | NNE 6 | W 16 | W 17 | W 18 | W 8 | W 7 | W 6 | W 8 | NW 15 | E 7 | E 6 | E 4 | E 4 | W 4 | W 8 | W 18 | W 18 |
73 | 212 | 206 | 123 | 333 | 438 | 298 | 63 | 43 | 29 | 130 | 60 | 111 | 97 | 6 | 1 | 5 | 71 | 27 | 101 | |
Swell 3 Height (m) Direction Period (s) | W 16 | W 19 | WNW 13 | W 16 | NNE 6 | NNE 5 | W 14 | ESE 4 | — | — | E 5 | E 9 | — | W 6 | — | — | W 9 | W 18 | W 18 | E 5 |
122 | 111 | 69 | 178 | 24 | 4 | 96 | 4 | — | — | 21 | 2 | — | 1 | — | — | 24 | 25 | 27 | 2 | |
Wind waves Height (m) Direction Period (s) | E 4 | E 4 | N 7 | — | — | — | — | — | — | — | ESE 6 | ESE 7 | ESE 7 | — | ESE 4 | — | — | — | — | — |
9 | 2 | 333 | — | — | — | — | — | — | — | 65 | 167 | 206 | — | 6 | — | — | — | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 111 | 95 | 93 | 11 | 0 | 0 | 0 | 0 | 0 | 197 | 0 | 11 | 7 | 0 | 0 | 7 | 11 | 0 | 162 | 0 |
Best forecast wave conditions in Nelson - West Coast | ||||||||||||||||||||
Best forecast wave conditions in New Zealand | ||||||||||||||||||||
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Information about the Wharariki Beach Surf forecast
The above surf forecast table for Wharariki Beach provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Wharariki Beach can be found by selecting the local surf guide option on the grey menu. Our Wharariki Beach 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 (Wharariki Beach) 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 Wharariki Beach 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 Nelson - West Coast? If you are looking for accommodation near Wharariki Beach, camping, hotels and holiday cottages in Nelson - West Coast, consider staying in Nelson which is 100 km (62 miles) away.











