
Surf Forecasts:
Kahutara surf forecast from 1 Aug 2026:
- Best quality surf: Tuesday 4 Aug, 3AM (local time) - 13ft (4.0m), 12s period, S swell with cross-offshore winds.
- Most powerful swell: Tuesday 4 Aug, 9AM (local time) - 16ft (5.0m), 13s period, SSW swell with 8,608 kJ wave energy.
- Next surfable swell (1★+): Sunday 2 Aug, 12AM (local time) - 8ft (2.5m), 11s period with SSE 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 Sunday (Aug 02) at 12AM. The primary swell is predicted to be 2.5m and 11s period with a secondary swell of 0.2m and 10s. 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 5.0m 13s and forecast to arrive on Tuesday (Aug 04) at 9AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Monday (Aug 03) at 12AM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Sun 2nd Aug) | 8ft (2.5m) 11s |
| Best Surf | 3AM (Tue 4th Aug) | 13ft (4.0m) 12s |
| Most Powerful | 9AM (Tue 4th Aug) | 16ft (5.0m) 13s |
Table - best surf conditions forecast for Kahutara over the next 16 days.
The Lowdown
Alright folks, Rusty here, let's have a good look at what's coming down the pipe for Kahutara over the next couple of weeks.
Straight off the bat, the water is sitting at 51°F, which is pretty much bang on average for this time of year, so no surprises there.
The week kicks off with a solid pulse of swell on Saturday the 1st. We're looking at 12 ft of S swell, but that 12 mph cross-off breeze from the SW and a questionable tide are going to make it a bit of a handful. The wave energy is massive at 6382, so it's a powerful one, but it's more of a spectacle for the experienced crew. It's a bit messy for a clean session.
Sunday the 2nd is where the real magic happens. A 6 ft SSE groundswell rolls in with a 10-second period, but the real story is the 6 mph offshore wind from the NW. That's the kind of clean, lined-up surf that makes the whole trip worthwhile. The water is a bit cool, but who cares when the waves are that good? The energy is moderate at 1036, so it's got some punch without being a handful. This is the standout for the first half of the forecast.
Monday the 3rd drops off a bit to 3 ft, but with clean conditions and a light offshore breeze, it's still a fun little window for a longboard or a smaller craft.
Things get a bit hairy on Tuesday the 4th. A massive 16 ft SSW swell is forecast, with a cross-off wind and a huge energy reading of 14208. That's a serious amount of water moving around. This is strictly for experts, and even then, it's going to be a battle. I'd be looking at kites if I were you, because paddle surfing in that is going to be a mission.
We settle down again on Wednesday the 5th with a clean 8 ft S swell, but it's still a bit big for the average punter. The winds are light and offshore, so it's clean, but it's a big, powerful wave.
Thursday the 6th through Saturday the 8th sees a nice run of 5 ft to 6 ft S swell, with glassy conditions on offer. The 6 ft wave on Friday the 7th has a period of 15 seconds, which is a very long period groundswell. That's a ton of energy (1648) and it will be a proper, deep-water swell. It's going to be a bit of a wait between sets, but the shape will be beautiful. It's a great run of clean, surfable waves for the experienced surfer.
After that, the swell fades into the second week. We get a few small, clean waves around the 3 ft to 3 ft mark on Sunday the 9th and Monday the 10th, but it's pretty ordinary. Don't expect much.
Tuesday the 11th is a write-off with heavy rain and a tiny 2 ft SSE swell. Wednesday the 12th is even worse, with a 1 ft SE swell. It's a dead period.
Then, out of the blue, we get a bit of a pulse on Thursday the 13th. A 7 ft ENE swell with a 6 mph cross-off wind and a clean forecast. The energy is back up to 1614. That's a promising-looking window for the end of the 16-day run, but it's a long way off, so don't book the plane tickets just yet. The trend is there, though.
So, to wrap it up, if you're looking for the best of it, you've got to get on Sunday the 2nd. That's the pick of the bunch. The Friday the 7th session is also a cracker for the experienced crew. The rest of the window is either too big, too small, or too far out to be sure.
Rusty.
Short Range ForecastLight rain (total 3mm), mostly falling on Mon night. Very mild (max 15°C on Mon morning, min 5°C on Sat night). Winds increasing (light winds from the N on Sun afternoon, strong winds from the SW by Tue morning). | Days 5-7 Weather SummaryLight rain (total 2mm), mostly falling on Tue afternoon. Mild temperatures (max 9°C on Fri morning, min 4°C on Tue night). Winds decreasing (strong winds from the SW on Tue afternoon, calm by Thu morning). | |||||||||||||||||||
Sat 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | ||||||||||||||
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 12 | SSE 11 | SSE 10 | SSE 13 | SSE 11 | SSE 11 | S 13 | S 15 | SSW 13 | S 13 | S 12 | S 12 | SSE 11 | SSE 11 | SE 11 | SE 10 | SE 10 | S 15 | S 14 | S 12 |
Wave Graph | ||||||||||||||||||||
3643 | 1597 | 634 | 1028 | 400 | 261 | 314 | 711 | 8608 | 5053 | 3746 | 1562 | 1208 | 908 | 515 | 408 | 245 | 1453 | 1431 | 874 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | off | cross-on | off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | glassy | glassy | glassy | glassy | glassy | cross | glassy |
High Tide | 6:34PM1.89m | 7:03AM1.78m | 7:17PM1.88m | 7:50AM1.81m | 8:05PM1.88m | 8:36AM1.84m | 8:57PM1.87m | 9:24AM1.88m | 9:51PM1.88m | 10:15AM1.92m | 10:45PM1.89m | 11:10AM1.97m | 11:40PM1.90m | |||||||
Low Tide | 00:57AM0.52m | 1:06PM0.49m | 1:38AM0.51m | 1:49PM0.50m | 2:22AM0.51m | 2:37PM0.52m | 3:10AM0.52m | 3:29PM0.56m | 4:03AM0.53m | 4:28PM0.58m | 4:59AM0.51m | 5:29PM0.56m | ||||||||
— | — | 7:35 | — | — | 7:33 | — | — | 7:33 | — | — | 7:31 | — | — | 7:30 | — | — | 7:28 | — | — | |
5:27 | — | — | 5:28 | — | — | 5:29 | — | — | 5:30 | — | — | 5:30 | — | — | 5:31 | — | — | 5:32 | — | |
mm | — | — | — | — | — | — | — | 3 | — | 1 | 1 | — | — | — | — | — | — | — | — | — |
Temp °C | 8 | 6 | 12 | 12 | 9 | 15 | 15 | 7 | 7 | 7 | 5 | 7 | 7 | 5 | 8 | 8 | 7 | 9 | 9 | 8 |
Feels °C | 2 | 2 | 9 | 8 | 5 | 10 | 10 | 2 | -3 | -3 | -2 | 4 | 3 | 2 | 5 | 6 | 5 | 7 | 7 | 6 |
Swell 1 Height (m) Direction Period (s) | S 12 | SSE 11 | SSE 10 | SSE 13 | SSE 11 | SSE 11 | S 13 | S 15 | S 13 | — | S 12 | S 12 | SSE 11 | SSE 11 | SE 11 | SE 10 | SE 10 | S 15 | S 14 | S 12 |
2502 | 1597 | 634 | 1028 | 400 | 261 | 314 | 711 | 5600 | — | 2544 | 1562 | 1208 | 908 | 515 | 408 | 245 | 1453 | 1431 | 874 | |
Swell 2 Height (m) Direction Period (s) | SE 15 | E 10 | SE 13 | S 10 | S 10 | S 12 | SE 12 | SE 12 | — | — | NE 12 | SE 19 | SE 18 | SE 16 | S 10 | S 10 | S 9 | SE 9 | SE 10 | SE 13 |
218 | 8 | 400 | 51 | 90 | 199 | 135 | 34 | — | — | 6 | 14 | 49 | 67 | 242 | 159 | 106 | 103 | 46 | 43 | |
Swell 3 Height (m) Direction Period (s) | E 10 | E 16 | E 10 | E 16 | NE 5 | S 18 | S 18 | SE 15 | — | — | — | SE 19 | — | — | SE 15 | SE 13 | SE 13 | SE 12 | SE 12 | — |
19 | 5 | 2 | 5 | 10 | 102 | 98 | 8 | — | — | — | 15 | — | — | 78 | 144 | 140 | 92 | 55 | — | |
Wind waves Height (m) Direction Period (s) | S 12 | — | — | — | SW 3 | — | WSW 3 | S 8 | SSW 13 | S 13 | S 12 | — | — | — | — | — | — | — | — | — |
3643 | — | — | — | 2 | — | 2 | 408 | 8608 | 5053 | 3746 | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 138 | 0 | 0 | 81 | 0 | 0 | 0 | 0 | 172 | 183 | 54 | 0 | 43 | 0 | 0 | 0 | 0 | 0 | 23 | 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.











