
Surf Forecasts:
Kahutara surf forecast from 16 Jul 2026:
- Best quality surf: Saturday 18 Jul, 9AM (local time) - 5ft (1.6m), 23s period, S swell with offshore winds.
- Most powerful swell: Saturday 18 Jul, 12PM (local time) - 6ft (1.9m), 23s period, S swell with 3,658 kJ wave energy.
- Next surfable swell (1★+): Friday 17 Jul, 12AM (local time) - 3ft (0.9m), 16s period with ESE 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 Friday (Jul 17) at 12AM. The primary swell is predicted to be 0.9m and 16s period with a secondary swell of 0.8m and 7s. Another secondary swell of 0.3m and 3s is also forecast. 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 1.9m 23s and forecast to arrive on Saturday (Jul 18) at 12PM. 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 3s period and expected on Monday (Jul 20) at 6AM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Fri 17th Jul) | 3ft (0.9m) 16s |
| Best Surf | 9AM (Sat 18th Jul) | 5ft (1.6m) 23s |
| Most Powerful | 12PM (Sat 18th Jul) | 6ft (1.9m) 23s |
Table - best surf conditions forecast for Kahutara over the next 16 days.
The Lowdown
Alright, this is Rusty with a look at what’s shaping up for Kahutara. We’ve got a solid run of surf ahead, but the first few days are pretty quiet. There’s nothing worth paddling out for right now, so you can leave the board in the car for a couple of days.
The real action starts on Friday morning the 17th. A nice 4ft swell out of the ESE, with a 16-second period – that’s some proper long-period groundswell with good energy (1356). The wind is light cross-off from the west, which will keep things clean. This isn’t the biggest swell but it’s a lovely start, and for a beginner-friendly reef and point like Kahutara, it’s a great way to ease into the weekend. Keep in mind, with that long period, it might wrap a little straight on the beach sections, but the point should be lovely.
The standout window is Saturday the 18th. The swell jumps up to 5ft from the south, with a monster 23-second period – that’s a very long groundswell. The wave energy is strong (3588). Morning brings a light offshore from the WNW, and by the afternoon it goes completely glassy with an easterly breeze. This is the best of the whole forecast. The 6ft afternoon sets off the same south swell will be clean, powerful, and well-shaped. That’s the one to circle on your calendar.
Sunday the 19th keeps a solid 5ft south swell running, with glassy conditions in the morning under a light northwesterly. It’s good, but the energy drops a bit (1547). The afternoon gets a bit of cross-on breeze, so the morning session is the call.
From Monday the 20th through Tuesday the 21st, we hold onto chest-high, clean surf in the 5ft to 5ft range from the south, with light offshore or glassy winds. Consistent, fun waves with moderate energy (around 1000-1900). Great for a few dawn sessions.
The surf backs off Wednesday the 22nd into Thursday the 23rd. Swell drops to around 3ft to 3ft, with shorter periods, and the energy gets weak (down to 153). It’s surfable, but ordinary.
Thursday the 23rd and Friday the 24th are small and weak, mostly for logs or a rest day.
Then we get a big spike to watch for Sunday the 26th – a solid 12ft groundswell out of the SSW, with glassy conditions and very strong energy (3252). That is a lot of water moving. Anything over 8ft is for experts only at this spot, so this is a big-wave session. The period is short at 9 seconds, which can make it a bit lumpy and fat, but the power is undeniable.
Monday the 27th still holds a solid 8ft south swell with offshore wind, also for experienced surfers. After that, the energy drops off again through the end of the month, with a few fun windows around 3ft to 4ft swells on the 30th and 31st, but nothing special.
As a heads up, Kahutara can get crowded sometimes, so keep your wits about you.
Best bets: Saturday the 18th is the pick of the show. Sunday the 26th for the big-wave crew.
This is Rusty, signing off.
Short Range ForecastMostly dry. Very mild (max 12°C on Sat afternoon, min 8°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Very mild (max 12°C on Wed morning, min 7°C on Mon night). Wind will be generally light. | |||||||||||||||||||
Thu 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | ||||||||||||||
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) | ESE 16 | ESE 16 | ESE 16 | ESE 16 | ESE 15 | S 23 | S 20 | S 18 | S 16 | S 15 | S 15 | S 15 | S 18 | S 17 | S 15 | S 15 | S 14 | S 14 | S 11 | S 11 |
Wave Graph | ||||||||||||||||||||
201 | 469 | 751 | 1016 | 975 | 2689 | 2811 | 1543 | 1120 | 881 | 958 | 823 | 1579 | 1561 | 966 | 966 | 577 | 394 | 155 | 202 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-off | cross-off | cross | cross-off | off | glassy | off | glassy | cross-on | cross-off | cross-off | cross-off | glassy | cross-off | glassy | off | glassy | cross-on | cross-off |
High Tide | 6:05PM2.21m | 6:34AM2.08m | 6:59PM2.16m | 7:30AM2.05m | 7:55PM2.09m | 8:27AM2.01m | 8:51PM2.02m | 9:21AM1.98m | 9:46PM1.96m | 10:14AM1.96m | 10:39PM1.92m | 11:05AM1.94m | 11:29PM1.87m | |||||||
Low Tide | 00:28AM0.26m | 12:46PM0.20m | 1:21AM0.29m | 1:39PM0.26m | 2:13AM0.33m | 2:32PM0.35m | 3:06AM0.40m | 3:27PM0.46m | 4:00AM0.46m | 4:24PM0.57m | 4:53AM0.53m | 5:22PM0.65m | ||||||||
— | — | 7:48 | — | — | 7:48 | — | — | 7:48 | — | — | 7:47 | — | — | 7:47 | — | — | 7:46 | — | — | |
5:13 | — | — | 5:13 | — | — | 5:14 | — | — | 5:15 | — | — | 5:15 | — | — | 5:16 | — | — | 5:17 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 11 | 9 | 11 | 11 | 9 | 11 | 12 | 11 | 12 | 11 | 10 | 10 | 9 | 8 | 11 | 11 | 11 | 12 | 12 | 10 |
Feels °C | 9 | 6 | 7 | 8 | 7 | 9 | 10 | 8 | 9 | 8 | 7 | 6 | 6 | 6 | 8 | 9 | 8 | 9 | 9 | 7 |
Swell 1 Height (m) Direction Period (s) | S 4 | ESE 16 | ESE 16 | ESE 16 | ESE 15 | S 23 | S 20 | S 18 | S 16 | S 15 | S 15 | S 15 | S 18 | S 17 | S 15 | S 15 | S 14 | S 14 | S 11 | S 11 |
19 | 469 | 751 | 1016 | 975 | 2689 | 2811 | 1543 | 1120 | 881 | 958 | 823 | 1579 | 1561 | 966 | 966 | 577 | 394 | 155 | 202 | |
Swell 2 Height (m) Direction Period (s) | ESE 16 | S 7 | S 16 | S 15 | S 12 | ESE 14 | ESE 14 | ESE 14 | ESE 13 | ESE 13 | ESE 12 | ESE 12 | ESE 12 | ESE 12 | ESE 11 | ESE 11 | ESE 11 | ESE 11 | S 14 | ESE 10 |
201 | 60 | 605 | 452 | 171 | 899 | 702 | 569 | 427 | 351 | 233 | 164 | 125 | 119 | 71 | 70 | 41 | 23 | 93 | 11 | |
Swell 3 Height (m) Direction Period (s) | S 16 | S 15 | NE 4 | — | S 15 | — | — | S 22 | — | S 20 | NE 4 | — | ESE 12 | — | — | — | NE 4 | NE 5 | ESE 11 | — |
20 | 41 | 2 | — | 113 | — | — | 470 | — | 68 | 7 | — | 125 | — | — | — | 4 | 1 | 22 | — | |
Wind waves Height (m) Direction Period (s) | SSW 5 | NE 3 | — | — | — | — | — | — | — | — | — | SSW 4 | S 6 | — | — | NNE 3 | — | SW 2 | — | NNE 3 |
42 | 1 | — | — | — | — | — | — | — | — | — | 24 | 71 | — | — | 4 | — | 1 | — | 2 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 43 | 0 | 0 | 19 | 0 | 0 | 0 | 0 | 0 | 33 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 33 | 0 |
Best forecast wave conditions in Kaikoura and Marlborough | ||||||||||||||||||||
Best forecast wave conditions in New Zealand | ||||||||||||||||||||
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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.










