
Surf Forecasts:
Kahutara surf forecast from 3 Sep 2026:
- Best quality surf: Friday 11 Sep, 12AM (local time) - 2.5ft (0.8m), 15s period, SSW swell with cross-offshore winds.
- Most powerful swell: Friday 11 Sep, 12AM (local time) - 2.5ft (0.8m), 15s period, SSW swell with 312 kJ wave energy.
- Next surfable swell (1★+): Friday 4 Sep, 12AM (local time) - 2.5ft (0.7m), 10s 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 Friday (Sep 04) at 12AM. The primary swell is predicted to be 0.7m and 10s period. 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 0.8m 15s and forecast to arrive on Friday (Sep 11) at 12AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 7s period and expected on Friday (Sep 04) at 9AM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Fri 4th Sep) | 2.5ft (0.7m) 10s |
| Best Surf | 12AM (Fri 11th Sep) | 2.5ft (0.8m) 15s |
| Most Powerful | 12AM (Fri 11th Sep) | 2.5ft (0.8m) 15s |
Table - best surf conditions forecast for Kahutara over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at the surf ahead for Kahutara. It’s gonna be a slow burn this week, but there’s a serious payoff if you're willing to wait.
The water temp is sitting about normal for this time of year, roughly 51°F, so nothing crazy there. We have a lot of small, weak pulses early on, mixed in with some bumpy conditions. The first few days are pretty quiet. Thursday afternoon has a little bump of south swell but it’s crossed up. Friday is a write-off with fresh offshore winds and no size. The weekend is pretty average, with clean conditions but very little wave. Sunday is a bit cleaner and more promising, but you’ll be on a longboard at best.
Monday and Tuesday remain unremarkable with small, weak, and often messy surf. A bit of rain and cross-shore winds keep things ordinary. From Thursday through next Wednesday, it’s mostly small and weak, with energy levels in the weak to moderate range. There are some glassy windows, but the lack of size is the issue.
Now, let’s talk about next week. Thursday the 11th is the first real standout. A proper long-period groundswell from the south with a 19-second period shows up. The energy jumps way up, and with light offshore winds, the place is going to clean up nicely. Still modest in size, but the quality and push will be there. This is one to get excited about.
Friday the 12th the size is a little smaller, but strong southwest winds will put a bit of a chop on things. Then, it just turns on. Sunday the 13th brings a serious jump in size with 13ft of south swell, and a massive jump in energy. This is a big, powerful swell, not for the faint of heart. This is proper expert territory, and it might be a bit messy.
Monday the 14th is the biggest day, with models showing a 20ft south swell and an absolutely enormous amount of energy. It’s way too big for the spot, and it will be a washing machine. Not a surfing day unless you're completely crazy.
The swell backs down to a more manageable 7ft on Tuesday the 15th. It’s glassy with a south-southeast direction. This is another real standout for the experienced surfer. This is going to be a proper day of big, clean waves.
After that, the swell fades. Wednesday the 16th has some small, clean waves, and the rest of the week peters out into small, weak south swells.
So, to be straight with you: the two best calls are Thursday the 11th for the clean start of the long-period groundswell, and Tuesday the 15th when the giant swell drops to a still-sizeable, glassy south-southeast swell. That Tuesday is the pick of the bunch for quality and size. Both are for experienced surfers, especially the Tuesday. Monday the 14th is just a monster, and the break won't handle it.
It's a slow start, but a big finish. Be patient.
Rusty.
Short Range ForecastMostly dry. Very mild (max 17°C on Thu afternoon, min 10°C on Fri night). Mainly strong winds. | Days 5-7 Weather SummaryHeavy rain (total 30mm), heaviest during Sun night. Very mild (max 16°C on Sun afternoon, min 5°C on Tue night). Wind will be generally light. | |||||||||||||||||||
Thu 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | ||||||||||||||
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 11 | S 10 | S 16 | S 16 | S 15 | S 8 | S 9 | S 17 | S 17 | S 17 | S 16 | S 16 | SSE 6 | SE 7 | ESE 7 | ESE 7 | S 6 | S 7 | S 8 | SSW 13 |
Wave Graph | ||||||||||||||||||||
185 | 96 | 46 | 44 | 18 | 50 | 61 | 91 | 200 | 207 | 80 | 44 | 100 | 198 | 149 | 128 | 196 | 126 | 76 | 58 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | off | off | off | glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | cross-off | glassy | glassy | cross-off | cross-off | cross | cross-on | cross-off |
High Tide | 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 | 2:36PM2.05m | ||||||||
Low Tide | 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 | 8:21AM0.34m | 8:52PM0.35m | |||||||
— | — | 6:47 | — | — | 6:45 | — | — | 6:43 | — | — | 6:41 | — | — | 6:39 | — | — | 6:37 | — | — | |
6:00 | — | — | 6:01 | — | — | 6:02 | — | — | 6:04 | — | — | 6:05 | — | — | 6:07 | — | — | 6:07 | — | |
mm | — | — | — | — | — | — | — | — | — | — | 11 | 10 | 4 | — | — | 4 | 1 | — | — | — |
Temp °C | 17 | 16 | 16 | 15 | 11 | 14 | 15 | 13 | 14 | 16 | 13 | 8 | 8 | 8 | 10 | 8 | 7 | 10 | 13 | 12 |
Feels °C | 15 | 12 | 10 | 7 | 1 | 10 | 11 | 11 | 11 | 13 | 9 | 5 | 6 | 6 | 5 | 3 | 3 | 5 | 10 | 9 |
Swell 1 Height (m) Direction Period (s) | S 11 | S 10 | NE 7 | S 9 | S 9 | S 8 | S 9 | SSW 8 | S 17 | S 17 | S 16 | SSW 9 | SSW 9 | SE 7 | ESE 7 | ESE 7 | ESE 7 | S 7 | S 8 | S 8 |
185 | 96 | 53 | 25 | 6 | 50 | 61 | 22 | 200 | 207 | 80 | 25 | 16 | 198 | 149 | 128 | 68 | 126 | 76 | 28 | |
Swell 2 Height (m) Direction Period (s) | SE 11 | NNE 6 | S 9 | NE 6 | S 15 | S 15 | S 15 | S 17 | SE 9 | NNE 6 | SSW 8 | S 16 | S 15 | S 15 | S 9 | S 9 | S 21 | ESE 7 | ENE 4 | SE 7 |
5 | 3 | 41 | 10 | 18 | 18 | 39 | 91 | 3 | 3 | 24 | 44 | 17 | 17 | 44 | 59 | 8 | 40 | 17 | 11 | |
Swell 3 Height (m) Direction Period (s) | E 10 | S 15 | S 16 | S 16 | SE 11 | SE 10 | SSE 9 | NNE 6 | E 10 | E 10 | NE 6 | NE 5 | NE 6 | NE 8 | S 14 | ENE 7 | E 16 | S 20 | ESE 6 | SSW 13 |
2 | 17 | 46 | 44 | 4 | 4 | 9 | 4 | 2 | 2 | 9 | 1 | 1 | 2 | 4 | 5 | 5 | 8 | 23 | 58 | |
Wind waves Height (m) Direction Period (s) | NE 5 | — | NNE 7 | W 4 | WNW 4 | N 7 | — | — | NNE 5 | — | SE 2 | SSE 5 | SSE 6 | — | — | — | S 6 | NE 2 | NE 4 | — |
1 | — | 263 | 35 | 28 | 1 | — | — | 2 | — | 1 | 37 | 100 | — | — | — | 196 | 1 | 28 | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 19 | 0 | 19 | 19 | 143 | 0 | 0 | 0 | 0 | 0 | 0 | 106 | 0 | 0 | 0 | 11 | 0 | 33 | 133 | 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.










