
Surf Forecasts:
Kahutara surf forecast from 8 Sep 2026:
- Best quality surf: Saturday 12 Sep, 3PM (local time) - 7ft (2.2m), 16s period, S swell with glassy winds.
- Most powerful swell: Saturday 12 Sep, 3PM (local time) - 7ft (2.2m), 16s period, S swell with 2,527 kJ wave energy.
- Next surfable swell (1★+): Wednesday 9 Sep, 6AM (local time) - 3.5ft (1.1m), 9s period with E swell.
Best Forecast Surf Conditions for Kahutara this week:
The surf forecast for Kahutara over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Sep 09) at 6AM. The primary swell is predicted to be 1.1m and 9s period with a secondary swell of 0.5m and 8s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Kahutara in the next 16 days are 2.2m 16s and forecast to arrive on Saturday (Sep 12) at 3PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Thursday (Sep 10) at 6AM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Wed 9th Sep) | 3.5ft (1.1m) 9s |
| Best Surf | 3PM (Sat 12th Sep) | 7ft (2.2m) 16s |
| Most Powerful | 3PM (Sat 12th Sep) | 7ft (2.2m) 16s |
Table - best surf conditions forecast for Kahutara over the next 16 days.
The Lowdown
Alright, mate, Rusty here. Let’s have a look at what’s on the cards for Kahutara over the next couple of weeks.
The good news is there’s some proper groundswell lining up, but you’re going to have to be patient. We’ve got a bit of a slow start, a few days of small, jumbled, and messy waves that aren’t worth your time. But hold tight, because there’s a serious pulse of energy coming through that’ll have the point lighting up.
We kick things off with a flat spell. Tuesday the 8th is just about unsurfable, with a weak 2.6 ft easterly wind swell and light onshore breeze making a mess of things. Wednesday the 9th isn’t much better – a bit more size pushing 3.6 ft, but it’s cross-shore and bumpy. You’d be fighting it more than riding it.
Thursday the 10th stays pretty poor, with that early 2.6 ft swell getting blown out, but the afternoon sees a little more juice at 4.6 ft from the SSW, even if the period is a weak 6 seconds. It’s clean but weak, not really worth suiting up for.
Now, here’s where it gets interesting. Friday the 11th brings the first real sign of life. The morning has a clean 2.3 ft south swell with a long, 18-second period, and the wind goes glassy. It’s small, but the cleanliness is a massive plus. It’s the kind of morning where you can get a few fun ones if you’re not picky about size.
Saturday the 12th is when we start to see the ocean wake up. The morning pushes to 5.9 ft with a 16-second period, but there’s a bit of cross-onshore wind that will put a few bumps on it. The afternoon is the standout of the weekend, hands down. Swell bumps to a solid 7.2 ft, still with that long 16-second period, and the wind goes glassy again. This is clean, powerful surf. The energy reading is huge, over 2500, which tells you there's plenty of push behind it. This is the best bet of the first week. This is a proper session for experienced surfers – it’s got some size and grunt to it.
Sunday the 13th has a solid 6.6 ft in the morning, but the wind turns light cross-shore, taking the edge off the perfection. It’s still good, but not as clean as Saturday afternoon. It stays rideable through the afternoon at 5.9 ft, but again, not the same quality.
We’ve got a bit of a lull from Monday the 14th through Tuesday the 15th, with the swell easing back to the 3.3 ft to 4.6 ft range. The periods drop back to a more moderate 10-12 seconds. There are some clean windows, but it’s a far cry from the weekend’s punch.
Wednesday the 16th is a write-off. The swell collapses to almost nothing, down to 0.3 ft in the morning. The afternoon picks up a bit to 3.3 ft, but it’s short-period windswell and messy.
Now hold onto your board shorts, because Thursday the 17th is the big one. The morning brings a significant 9.8 ft SSW swell with a 12-second period. The combined energy is over 4300, which is a serious amount of water moving. Winds are light cross-offshore and it’s clean. This is big, powerful surf, only for experts. This will be a heavy day at Kahutara. The afternoon is still solid at 7.9 ft, but a fresh 35 km/h cross-offshore breeze will make it wild and challenging.
Friday the 18th settles down to a much more manageable 3.9 ft with clean surf and light offshore winds in the morning. Nice little session after the chaos if you can sneak out. The afternoon is a bit weaker.
Saturday the 19th is another promising day. We’ve got 5.6 ft in the morning with a 16-second period, and it stays clean despite a moderate cross-offshore wind. The afternoon jumps to 5.2 ft with 15-second period and a fresh, but clean, offshore wind. It’s a solid day of surf.
And that’s about it. From Sunday the 20th onward, the swell just fades away. The 21st and 22nd are poor, with small, weak waves and unfavourable winds. Not worth your time. There’s a tiny bump on Wednesday the 23rd – 2 ft but with a long 17-second period and clean conditions, so it might be good for a log if you’re desperate, but it’s a far cry from what we saw mid-week.
So, if you’re looking for the standout, it’s clear. Saturday afternoon the 12th is your pick for the best clean, powerful surf. But if you’re an experienced surfer chasing size, Thursday morning the 17th is the big one, that’s a serious swell. The long range stuff on the 19th looks fun too, but the forecast for the second week is a
Short Range ForecastModerate rain (total 10mm), heaviest on Thu morning. Very mild (max 13°C on Wed afternoon, min 4°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 2mm), mostly falling on Fri night. Very mild (max 13°C on Fri afternoon, min 7°C on Fri night). Wind will be generally light. | |||||||||||||||||||
Tue 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | ||||||||||||||
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 | E 9 | E 9 | ENE 8 | E 8 | E 8 | SSW 6 | S 18 | S 18 | S 17 | S 16 | S 16 | S 16 | S 16 | S 15 | S 13 | S 13 | S 12 | S 12 | S 11 |
Wave Graph | ||||||||||||||||||||
74 | 158 | 190 | 341 | 161 | 78 | 150 | 236 | 307 | 220 | 339 | 1591 | 2527 | 2219 | 1676 | 1144 | 861 | 553 | 469 | 282 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | glassy | cross | cross-on | off | cross-off | cross-off | off | glassy | glassy | cross | cross-on | glassy | glassy | cross | cross-on | glassy | cross | glassy | cross-off |
High Tide | 2:10AM1.97m | 2:36PM2.05m | 3:02AM1.98m | 3:28PM2.05m | 3:53AM1.99m | 4:20PM2.04m | 4:46AM1.98m | 5:12PM2.02m | 5:42AM1.98m | 6:05PM1.99m | 6:38AM1.99m | 6:58PM1.95m | ||||||||
Low Tide | 8:01PM0.37m | 8:21AM0.34m | 8:52PM0.35m | 9:17AM0.31m | 9:45PM0.35m | 10:12AM0.31m | 10:39PM0.36m | 11:05AM0.33m | 11:33PM0.38m | 11:57AM0.38m | 00:24AM0.41m | 12:48PM0.45m | 1:12AM0.46m | |||||||
— | — | 6:37 | — | — | 6:37 | — | — | 6:35 | — | — | 6:33 | — | — | 6:31 | — | — | 6:30 | — | — | |
6:07 | — | — | 6:07 | — | — | 6:08 | — | — | 6:09 | — | — | 6:10 | — | — | 6:12 | — | — | 6:13 | — | |
mm | — | — | — | — | — | 6 | 4 | — | — | — | 2 | — | — | — | — | — | — | — | — | — |
Temp °C | 10 | 9 | 12 | 13 | 11 | 9 | 6 | 6 | 11 | 13 | 10 | 11 | 12 | 9 | 12 | 12 | 11 | 13 | 13 | 12 |
Feels °C | 7 | 8 | 8 | 10 | 8 | 5 | 1 | 2 | 8 | 10 | 7 | 7 | 10 | 7 | 10 | 10 | 10 | 10 | 11 | 10 |
Swell 1 Height (m) Direction Period (s) | S 8 | E 9 | E 9 | S 8 | E 8 | E 8 | E 8 | S 7 | S 6 | S 17 | S 16 | S 16 | S 16 | S 16 | S 15 | S 13 | S 13 | S 12 | S 12 | S 11 |
34 | 158 | 190 | 20 | 161 | 78 | 43 | 127 | 66 | 220 | 339 | 1591 | 2527 | 2219 | 1676 | 1144 | 861 | 553 | 469 | 282 | |
Swell 2 Height (m) Direction Period (s) | S 13 | S 8 | S 8 | S 19 | S 8 | S 16 | SSW 16 | S 18 | S 18 | S 6 | NE 6 | ENE 13 | ENE 13 | ENE 9 | ENE 12 | ENE 12 | NE 4 | NE 8 | NE 8 | NE 5 |
4 | 31 | 20 | 7 | 11 | 45 | 80 | 236 | 307 | 28 | 5 | 17 | 17 | 8 | 15 | 14 | 2 | 3 | 3 | 4 | |
Swell 3 Height (m) Direction Period (s) | E 16 | S 21 | S 20 | S 12 | S 18 | S 22 | S 20 | E 8 | E 8 | NE 4 | ESE 7 | E 7 | ENE 13 | NE 13 | SE 12 | SE 11 | ENE 12 | E 15 | — | S 16 |
5 | 9 | 8 | 3 | 25 | 10 | 68 | 19 | 10 | 4 | 5 | 1 | 17 | 6 | 5 | 4 | 13 | 4 | — | 43 | |
Wind waves Height (m) Direction Period (s) | E 8 | — | NE 3 | ENE 8 | W 2 | SSW 4 | SSW 6 | WSW 3 | — | NE 4 | WSW 3 | — | NE 3 | — | — | NE 3 | — | — | NE 4 | — |
74 | — | 2 | 341 | 1 | 10 | 150 | 2 | — | 16 | 4 | — | 5 | — | — | 12 | — | — | 10 | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 33 | 0 | 81 | 81 | 0 | 9 | 9 | 0 | 0 | 0 | 106 | 33 | 0 | 0 | 11 | 33 | 0 | 11 | 0 | 0 |
Best forecast wave conditions in Kaikoura and Marlborough | ||||||||||||||||||||
Best forecast wave conditions in New Zealand | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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Information about the Kahutara Surf forecast
The above surf forecast table for Kahutara provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Kahutara can be found by selecting the local surf guide option on the grey menu. Our Kahutara 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 (Kahutara) 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 Kahutara 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.
Kahutara is 106 km (66 miles) from the city of Blenheim. If you plan a holiday in Kaikoura and Marlborough, look for hotels and other accommodation in Blenheim. Blenheim has rooms for a wide range of budgets as well as car hire and transport links.










