Surf Forecasts:
Kahutara surf forecast from 2 Sep 2026:
- Best quality surf: Wednesday 2 Sep, 9PM (local time) - 6ft (1.8m), 13s period, S swell with offshore winds.
- Most powerful swell: Monday 7 Sep, 12PM (local time) - 8ft (2.5m), 9s period, S swell with 1,225 kJ wave energy.
- Next surfable swell (1★+): Wednesday 2 Sep, 9PM (local time) - 6ft (1.8m), 13s 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 Wednesday (Sep 02) at 9PM. The primary swell is predicted to be 1.8m and 13s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Kahutara in the next 16 days are 2.5m 9s and forecast to arrive on Monday (Sep 07) at 12PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 5s period and expected on Monday (Sep 07) at 6AM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Wed 2nd Sep) | 6ft (1.8m) 13s |
| Best Surf | 9PM (Wed 2nd Sep) | 6ft (1.8m) 13s |
| Most Powerful | 12PM (Mon 7th Sep) | 8ft (2.5m) 9s |
Table - best surf conditions forecast for Kahutara over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s have a look at what’s cookin’ for the next couple of weeks.
We’ve got a real slow start. The first few days are a bit of a write-off with only tiny, weak swell. It’s not until the morning of Wednesday the 2nd that we see something worth paddling out for, but even then, it’s a serious session. The standout early on is that Wednesday morning. Kahutara is pumping with a solid 8ft south swell, period 15 seconds – that’s proper groundswell and it’s wrapping in with a massive combined energy of 3055. That’s a lot of power. And the wind is light offshore from the WNW, so it’s going to be clean. The water temp is 51°F, which is about average for this time of year. This is only for experienced surfers though, 8ft is pushing it for beginners. The long period means better shaped waves and longer waits between sets, and at a reef and point like Kahutara, that’s a recipe for some memorable waves. The afternoon glass-off is a letdown because the swell drops a bit, but the conditions are still beautiful.
Thursday the 3rd is a step down – the swell drops to 4ft and the energy is way down at 313. It’s clean but nothing special. Friday is a complete no-go with strong winds and practically no swell. Saturday and Sunday are flat and weak. Monday the 7th is a mess: a 8ft SSW swell but with a short period of 8 seconds and a strong cross-off wind, it’s just not coming together. The whole first week is a struggle after that Wednesday.
Now, the real gold is in the second week. It’s a long way off, but Monday the 14th of September is looking like the true standout. The forecast shows a massive 16ft SSW swell arriving with a 13-second period, and the combined energy is a staggering 11994 – that’s some serious, heavy ocean energy. The wind is a light offshore from the NW, so it’ll be clean. This is a day for experts only, 16ft is no joke. The point and reef setup at Kahutara is going to handle that size well, but it’s going to be a power session. There’s a good chance of crowds on a day like this.
Tuesday the 15th is still big, with a 13ft south swell, but the wind gets a bit more on it, and the energy is still very high at 5054. It’s still excellent, but not the pick. Wednesday the 16th is still solid but with more cross-shore wind, it’s not the same quality.
So, to wrap it up: the best surf on offer is Wednesday the 2nd for a solid, clean, groundswell session for the experienced, and the absolute standout, if the forecast holds, is Monday the 14th of September when a huge, clean, offshore swell hits Kahutara. That’s the one you’d circle on the calendar.
Rusty.
Short Range ForecastMostly dry. Very mild (max 18°C on Thu morning, min 10°C on Fri night). Winds increasing (calm on Wed morning, fresh winds from the WNW by Fri afternoon). | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Sun night. Very mild (max 17°C on Sun afternoon, min 9°C on Mon morning). Wind will be generally light. | ||||||||||||||||||||
Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | |||||||||||||||
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) | S 15 | S 14 | S 13 | S 11 | S 11 | S 10 | S 16 | S 16 | S 15 | SSW 8 | S 10 | S 17 | S 17 | S 17 | S 16 | SSW 8 | S 9 | S 9 | SSE 8 | SSE 8 | SSE 8 |
Wave Graph | |||||||||||||||||||||
2272 | 1719 | 712 | 308 | 185 | 96 | 46 | 44 | 17 | 19 | 56 | 90 | 205 | 146 | 46 | 748 | 880 | 377 | 207 | 171 | 406 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | glassy | off | cross-off | cross-off | cross-off | off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross | cross-on | cross-off | cross-on | cross |
High Tide | 8:38PM1.92m | 9:04AM1.99m | 9:35PM1.91m | 9:58AM2.01m | 10:31PM1.91m | 10:54AM2.02m | 11:26PM1.92m | 11:52AM2.03m | 00:21AM1.93m | 12:48PM2.04m | 1:16AM1.95m | 1:43PM2.05m | 2:10AM1.97m | ||||||||
Low Tide | 2:18PM0.51m | 2:46AM0.50m | 3:16PM0.54m | 3:43AM0.50m | 4:16PM0.54m | 4:41AM0.49m | 5:18PM0.52m | 5:38AM0.45m | 6:16PM0.47m | 6:32AM0.41m | 7:10PM0.41m | 7:26AM0.37m | 8:01PM0.37m | ||||||||
6:50 | — | — | 6:48 | — | — | 6:47 | — | — | 6:45 | — | — | 6:43 | — | — | 6:41 | — | — | 6:39 | — | — | |
— | 6:00 | — | — | 6:00 | — | — | 6:01 | — | — | 6:02 | — | — | 6:04 | — | — | 6:05 | — | — | 6:07 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — | — | — | — | — | — |
Temp °C | 14 | 15 | 14 | 18 | 18 | 16 | 17 | 14 | 11 | 15 | 15 | 13 | 15 | 17 | 14 | 10 | 10 | 9 | 12 | 11 | 10 |
Feels °C | 12 | 13 | 11 | 15 | 15 | 13 | 11 | 6 | 3 | 12 | 12 | 10 | 12 | 13 | 13 | 6 | 6 | 6 | 8 | 7 | 8 |
Swell 1 Height (m) Direction Period (s) | S 15 | S 14 | S 13 | S 11 | S 11 | S 10 | NE 6 | S 9 | S 9 | SSW 8 | S 10 | SSW 8 | S 17 | S 17 | NE 6 | NE 8 | ENE 9 | S 9 | SSE 8 | SSE 8 | SSE 8 |
2272 | 1719 | 712 | 308 | 185 | 96 | 23 | 25 | 14 | 19 | 56 | 21 | 205 | 146 | 10 | 14 | 16 | 377 | 207 | 171 | 406 | |
Swell 2 Height (m) Direction Period (s) | S 17 | NE 10 | SE 11 | NE 10 | SE 11 | NE 6 | S 9 | NE 6 | S 15 | S 15 | S 14 | S 17 | NE 4 | E 10 | ENE 5 | S 16 | SSW 15 | S 15 | SSE 11 | SE 11 | S 21 |
783 | 4 | 5 | 4 | 5 | 8 | 41 | 9 | 17 | 18 | 37 | 90 | 1 | 2 | 6 | 44 | 21 | 4 | 47 | 57 | 9 | |
Swell 3 Height (m) Direction Period (s) | NE 11 | — | NE 10 | SE 12 | NE 7 | NNE 8 | S 16 | S 16 | NE 6 | SSE 10 | SSE 9 | SE 9 | SE 9 | S 8 | S 16 | — | — | — | NE 4 | NE 7 | S 13 |
4 | — | 4 | 5 | 2 | 6 | 46 | 44 | 2 | 9 | 8 | 3 | 3 | 1 | 46 | — | — | — | 2 | 7 | 4 | |
Wind waves Height (m) Direction Period (s) | — | — | W 3 | — | NE 7 | — | NW 3 | W 4 | WNW 4 | — | NNE 3 | N 6 | NE 3 | NE 8 | W 2 | SSW 8 | S 9 | ENE 3 | — | — | — |
— | — | 5 | — | 14 | — | 3 | 35 | 11 | — | 1 | 1 | 2 | 59 | 1 | 748 | 880 | 6 | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 19 | 43 | 155 | 19 | 0 | 0 | 0 | 172 | 11 | 133 | 54 | 81 | 0 | 143 | 33 |
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.











