
Surf Forecasts:
Kahutara surf forecast from 7 Sep 2026:
- Best quality surf: Saturday 12 Sep, 9PM (local time) - 6ft (1.9m), 16s period, S swell with offshore winds.
- Most powerful swell: Sunday 13 Sep, 12PM (local time) - 7ft (2.2m), 16s period, S swell with 2,374 kJ wave energy.
- Next surfable swell (1★+): Tuesday 8 Sep, 6AM (local time) - 2ft (0.6m), 9s period with S 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 Tuesday (Sep 08) at 6AM. The primary swell is predicted to be 0.6m and 9s period with a secondary swell of 0.7m and 5s. Another secondary swell of 0.4m 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 2.2m 16s and forecast to arrive on Sunday (Sep 13) at 12PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Thursday (Sep 10) at 6AM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Tue 8th Sep) | 2ft (0.6m) 9s |
| Best Surf | 9PM (Sat 12th Sep) | 6ft (1.9m) 16s |
| Most Powerful | 12PM (Sun 13th Sep) | 7ft (2.2m) 16s |
Table - best surf conditions forecast for Kahutara over the next 16 days.
The Lowdown
G’day, Rusty here. Alright, let’s have a look at what’s cookin’ over the next couple of weeks at Kahutara. It’s a reef and point set-up, exposed to the swell, and it’s fairly consistent. The water’s sitting at 52°F – that’s about average for this time of year, so nothin’ wild there.
The first few days are pretty quiet. Monday arvo the 7th is a write-off – small 2ft southerly slop and poor conditions. Tuesday the 8th starts glassy but tiny, with a weak 2ft south swell and barely any energy. That changes a bit later Tuesday afternoon as an easterly push bumps things to 3ft, but the cross-onshore wind kills the vibe. Wednesday the 9th sees the swell climb to 4ft in the morning and 5ft in the arvo, both from the east, but the wind stays messy with cross or cross-onshore texture – just marginal stuff. Thursday the 10th is a real letdown: tiny, weak, and messy.
Now, Friday the 11th morning is where it starts to feel like a proper surf forecast. A clean, glassy-offshore wind from the north meets a 2ft south groundswell running a long 18 seconds. That’s proper energy and the wave shape at a point like this should be nice and lined up – clean surf for sure. The afternoon gets a bit wonky with cross-onshore wind, but the morning is the pick of the early days.
Saturday the 12th sees the swell bumping up, but both sessions have cross-shore wind putting a bit of chop on it. The afternoon has a solid 7ft south groundswell (16 seconds) and energy is pumpin’ – that’s moderate to strong – but the wind keeps it from being perfect. Sunday the 13th carries similar 6ft and 7ft south swell, again with cross or cross-onshore breeze, so still marginal.
Then Monday the 14th morning is a beauty – glassy, dead calm, with a clean 5ft south groundswell at 12 seconds. The combined energy is moderate, and conditions are set for very good surf. That’s a standout session for sure. The afternoon gets a bit of onshore wind, so get out early.
Tuesday the 15th morning offers another clean window: glassy, offshore wind from the WNW, with a 4ft south swell. Good surf, but a step down from the day before. The rest of the week turns blustery – Wednesday the 16th is blown out with strong wind, and Thursday the 17th has a brief clean-up in the arvo as an offshore northwesterly kicks in, giving a 4ft south swell some decent shape.
Now, if you can wait, the real muscle shows up on Saturday the 19th. That morning is a ripper – glassy, dead calm, and a solid 13ft south-southwest swell (10 seconds). The combined energy is massive, that’s strong and powerful. This is expert territory, no doubt about it. It’s too big for beginners and only for experienced surfers who know the reef and point. The wind is glass, so it should be pristine, but you need to know what you’re doing. The arvo fades back down.
Into the last week, Sunday the 20th morning is glassy again with a 5ft east swell – clean and fun. Monday the 21st is a real treat: glass all day, with the arvo serving up a very good 5ft east swell at 11 seconds and energy ramping up. Then Tuesday the 22nd is the absolute standout of the whole forecast – both morning and afternoon are glassy, with solid east-northeast swell pushing 8ft to 8ft and periods of 13 seconds. That’s excellent, powerful surf but again, it’s big – over 8ft, so it’s only for experts. Energy is through the roof. If you’ve got the skills, that Tuesday is the day.
Overall, the best on offer are Monday 14th morning for a clean, solid south groundswell, and Tuesday 22nd for the big, glassy east-northeast swell. The 19th is a monster but only if you’re experienced. The gaps between good spells aren’t too long – this spot stays fairly consistent, so it’s not a blank run at all.
Stay salty,
Rusty
Short Range ForecastSome drizzle, heaviest during Thu morning. Very mild (max 13°C on Wed afternoon, min 6°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 12mm), heaviest on Thu afternoon. Very mild (max 13°C on Sun morning, min 3°C on Thu night). Wind will be generally light. | |||||||||||||||||||
Mon 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | ||||||||||||||
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) | S 9 | S 9 | S 9 | ENE 8 | E 9 | E 9 | E 9 | E 8 | E 8 | SSW 16 | S 18 | S 18 | S 17 | S 16 | S 10 | S 16 | S 16 | S 16 | S 16 | S 14 |
Wave Graph | ||||||||||||||||||||
76 | 59 | 55 | 104 | 235 | 269 | 347 | 135 | 82 | 80 | 162 | 307 | 297 | 133 | 347 | 1953 | 1631 | 1794 | 2109 | 1321 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross | glassy | cross-on | cross | cross | cross-on | off | cross | cross-off | cross-off | cross-off | cross-on | cross | cross | cross | off | cross | cross-on | glassy |
High Tide | 1:16AM1.95m | 1:43PM2.05m | 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 | ||||||||
Low Tide | 7:10PM0.41m | 7:26AM0.37m | 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 | |||||||
— | — | 6:39 | — | — | 6:37 | — | — | 6:37 | — | — | 6:35 | — | — | 6:33 | — | — | 6:31 | — | — | |
6:05 | — | — | 6:07 | — | — | 6:07 | — | — | 6:08 | — | — | 6:09 | — | — | 6:10 | — | — | 6:12 | — | |
mm | — | — | — | — | — | — | — | — | 1 | 10 | 1 | — | — | 1 | — | — | — | — | — | — |
Temp °C | 8 | 7 | 10 | 10 | 9 | 12 | 13 | 10 | 10 | 5 | 6 | 9 | 11 | 8 | 10 | 12 | 11 | 13 | 9 | 8 |
Feels °C | 5 | 3 | 7 | 7 | 7 | 8 | 11 | 7 | 6 | 1 | 2 | 5 | 8 | 5 | 6 | 8 | 6 | 10 | 6 | 6 |
Swell 1 Height (m) Direction Period (s) | ESE 6 | ESE 6 | S 9 | S 8 | E 9 | E 9 | S 8 | E 8 | E 8 | E 8 | S 6 | S 6 | SSE 6 | S 9 | S 10 | S 16 | S 16 | S 16 | S 16 | S 14 |
65 | 36 | 55 | 34 | 235 | 269 | 20 | 135 | 82 | 43 | 78 | 48 | 28 | 57 | 347 | 1953 | 1631 | 1794 | 2109 | 1321 | |
Swell 2 Height (m) Direction Period (s) | S 9 | S 9 | E 8 | S 13 | S 8 | S 8 | S 19 | NE 6 | S 16 | SSW 16 | S 18 | S 18 | S 17 | S 16 | S 15 | ENE 9 | NE 9 | ENE 12 | ENE 12 | NE 9 |
76 | 59 | 10 | 4 | 31 | 20 | 7 | 11 | 45 | 80 | 162 | 307 | 297 | 133 | 302 | 8 | 14 | 15 | 14 | 3 | |
Swell 3 Height (m) Direction Period (s) | S 15 | S 14 | S 14 | S 13 | S 21 | S 20 | S 12 | S 8 | S 8 | S 20 | ESE 8 | ESE 7 | ESE 7 | NE 4 | ENE 13 | NE 13 | NE 13 | — | — | NE 12 |
17 | 16 | 4 | 3 | 9 | 8 | 3 | 11 | 5 | 68 | 19 | 10 | 10 | 2 | 17 | 7 | 6 | — | — | 5 | |
Wind waves Height (m) Direction Period (s) | — | NE 3 | E 6 | ENE 8 | — | NE 4 | E 9 | — | SW 4 | SSW 5 | WSW 3 | — | NE 3 | SW 3 | — | ENE 4 | — | NE 9 | — | — |
— | 1 | 30 | 104 | — | 12 | 347 | — | 3 | 56 | 3 | — | 5 | 2 | — | 10 | — | 12 | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 43 | 23 | 0 | 33 | 11 | 33 | 33 | 0 | 9 | 11 | 0 | 0 | 19 | 54 | 33 | 33 | 0 | 9 | 43 | 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.










