Surf Forecasts:
Kahutara surf forecast from 27 Aug 2026:
- Best quality surf: Tuesday 1 Sep, 6AM (local time) - 13ft (4.0m), 12s period, S swell with cross-offshore winds.
- Most powerful swell: Tuesday 1 Sep, 6AM (local time) - 13ft (4.0m), 12s period, S swell with 4,929 kJ wave energy.
- Next surfable swell (1★+): Thursday 27 Aug, 9PM (local time) - 4.5ft (1.3m), 14s 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 Thursday (Aug 27) at 9PM. The primary swell is predicted to be 1.3m and 14s period with a secondary swell of 0.2m and 12s. Another secondary swell of 1.3m and 6s 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 4.0m 12s and forecast to arrive on Tuesday (Sep 01) at 6AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.3m 7s period and expected on Friday (Aug 28) at 3AM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Thu 27th Aug) | 4.5ft (1.3m) 14s |
| Best Surf | 6AM (Tue 1st Sep) | 13ft (4.0m) 12s |
| Most Powerful | 6AM (Tue 1st Sep) | 13ft (4.0m) 12s |
Table - best surf conditions forecast for Kahutara over the next 16 days.
The Lowdown
Alright folks, Rusty here with the full 16-day rundown for Kahutara. We’ve got a classic mixed bag of solid south swell pulses and some real flat spells in between, so you’ll need to pick your moments.
This stretch starts with a bit of a slow warm-up. Thursday the 27th has some size but the wind is a mess – cross-on and choppy, so it’s pretty ordinary. Not worth paddling out for. Things improve rapidly by Friday afternoon the 28th though, with a cleaner cross-off breeze and a 3-foot south swell. It’s small but fun and clean.
The real standout hits early next week. Monday morning the 31st of August is the first proper highlight: 6 feet of south swell (12-second period), clean conditions with a light cross-off, and a solid energy punch (1440). The water temp is sitting at 51°F, which is dead normal for this time of year. That’s the one to circle – it’s clean, punchy, and has plenty of push for experienced surfers.
Then we get a serious spike. Tuesday morning the 1st of September brings 10 feet of south swell (12-second period) and glassy, offshore winds. The combined energy is massive (2140), but that’s a big wave day – only for the experts. Kahutara is a reef and point setup, so that long-period groundswell will wrap in nicely, but it’s going to be heavy and thick. Not for the faint-hearted.
After that, the swell tapers fast. Wednesday the 2nd still has a clean 5-foot south swell (offshore), but by Thursday the 3rd we’re down to waist-high scraps. There’s a long flat spell from the 5th of September right through to the 10th – several days of nothing but tiny, energy-less waves. On the 8th there’s a glassy morning but it’s only 1 foot… not worth getting wet for.
Finally, the 16-day window closes with a late pulse. Friday morning the 11th of September sees 10 feet of south-southwest swell (9-second period) – shorter period, so it’s a bit lumpy, but with light cross-off winds and a glassy afternoon, it cleans right up. The energy is strong (1909), and it’s a solid option for experienced surfers. That’s your second standout, but it’s a long way out – promising but less certain.
Overall, the best bets are Monday the 31st of August and Tuesday the 1st of September for the size, and the clean Friday afternoon window on the 11th of September. The rest of the time is flat or blown out. Keep an eye on the forecasts, because when Kahutara fires, it’s worth the wait.
Rusty.
Short Range ForecastSome drizzle, heaviest during Thu morning. Very mild (max 16°C on Fri afternoon, min 8°C on Thu morning). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 3mm), mostly falling on Mon night. Very mild (max 16°C on Sun morning, min 5°C on Mon night). Winds decreasing (strong winds from the W on Mon afternoon, calm by Tue morning). | ||||||||||||||||||||
Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | |||||||||||||||
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 16 | S 15 | S 13 | S 12 | S 12 | S 11 | S 11 | S 10 | SSW 13 | S 14 | S 16 | SSW 7 | S 12 | S 12 | S 15 | S 12 | S 12 | S 12 | S 11 | S 11 | S 11 |
Wave Graph | |||||||||||||||||||||
1258 | 881 | 560 | 285 | 213 | 154 | 149 | 133 | 60 | 134 | 181 | 428 | 1471 | 678 | 1246 | 3090 | 1447 | 678 | 526 | 389 | 220 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-off | cross | cross-off | off | off | cross-on | cross-off | cross-off | off | cross-off | cross-off | off | cross-off | glassy | cross-on | cross-off | off | cross-off | off |
High Tide | 3:59PM1.88m | 4:18AM1.81m | 4:40PM1.91m | 5:00AM1.83m | 5:20PM1.93m | 5:45AM1.86m | 6:03PM1.94m | 6:32AM1.89m | 6:50PM1.94m | 7:21AM1.92m | 7:42PM1.93m | 8:12AM1.96m | 8:38PM1.92m | ||||||||
Low Tide | 9:46AM0.57m | 10:14PM0.58m | 10:31AM0.53m | 10:58PM0.53m | 11:13AM0.49m | 11:41PM0.50m | 11:55AM0.46m | 00:24AM0.48m | 12:39PM0.46m | 1:08AM0.48m | 1:26PM0.48m | 1:55AM0.49m | 2:18PM0.51m | 2:46AM0.50m | |||||||
7:00 | — | — | 6:58 | — | — | 6:56 | — | — | 6:54 | — | — | 6:54 | — | — | 6:52 | — | — | 6:50 | — | — | |
— | 5:53 | — | — | 5:54 | — | — | 5:55 | — | — | 5:57 | — | — | 5:58 | — | — | 5:59 | — | — | 6:00 | — | |
mm | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | — | — | — | — | — | 1 |
Temp °C | 8 | 11 | 12 | 15 | 16 | 13 | 14 | 14 | 11 | 16 | 15 | 11 | 14 | 14 | 10 | 9 | 11 | 10 | 15 | 16 | 15 |
Feels °C | 4 | 8 | 9 | 11 | 12 | 11 | 12 | 11 | 9 | 10 | 8 | 4 | 10 | 6 | 5 | 5 | 7 | 7 | 12 | 12 | 8 |
Swell 1 Height (m) Direction Period (s) | S 16 | S 15 | ENE 7 | S 12 | NE 7 | S 11 | S 11 | S 10 | S 10 | S 14 | S 16 | SSW 8 | S 12 | S 12 | S 15 | S 12 | S 12 | S 12 | S 11 | S 11 | S 11 |
1258 | 881 | 180 | 285 | 194 | 154 | 149 | 133 | 50 | 134 | 181 | 237 | 1471 | 678 | 1246 | 3090 | 1447 | 678 | 526 | 389 | 220 | |
Swell 2 Height (m) Direction Period (s) | ESE 13 | ESE 12 | S 13 | ENE 8 | S 12 | ENE 8 | ENE 8 | ENE 8 | SSW 13 | NE 8 | NE 7 | S 15 | E 11 | S 15 | NE 9 | — | NE 11 | NE 4 | S 18 | SE 14 | NE 7 |
16 | 13 | 560 | 94 | 213 | 84 | 26 | 24 | 60 | 15 | 13 | 362 | 10 | 367 | 13 | — | 4 | 3 | 25 | 7 | 13 | |
Swell 3 Height (m) Direction Period (s) | — | — | SE 12 | SE 16 | SE 15 | SSE 14 | SSE 14 | SE 13 | NE 8 | SSE 10 | ESE 12 | ENE 7 | — | NE 8 | E 11 | — | — | NE 10 | NE 10 | NE 10 | SSE 13 |
— | — | 5 | 10 | 8 | 39 | 36 | 27 | 14 | 18 | 14 | 5 | — | 3 | 2 | — | — | 4 | 4 | 4 | 16 | |
Wind waves Height (m) Direction Period (s) | ESE 5 | ENE 5 | NE 7 | NE 7 | NNE 8 | WSW 4 | W 4 | NE 5 | — | — | WSW 4 | SSW 7 | NW 4 | W 3 | W 4 | — | — | — | — | — | NNW 3 |
42 | 107 | 411 | 155 | 600 | 1 | 5 | 7 | — | — | 2 | 428 | 3 | 2 | 12 | — | — | — | — | — | 8 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 163 | 121 | 0 | 173 | 23 | 0 | 0 | 33 | 0 | 0 | 19 | 19 | 0 | 19 | 139 | 0 | 81 | 0 | 0 | 19 | 19 |
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.











