Kahutara Surf Break

Lat Long: 42.43° S 173.59° E

Kahutara Surf Forecast and Surf Report

Issued: 5 pm 06 Aug 2026 (local time)

Forecast update in  hr  min

Today's Kahutara sea temperature is
10.2° C
0.2° 

Kahutara surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Kahutara surf forecast from 6 Aug 2026:

  • Best quality surf: Friday 7 Aug, 3AM (local time) - 3.5ft (1.0m), 16s period, S swell with cross-offshore winds.
  • Most powerful swell: Friday 7 Aug, 9AM (local time) - 5ft (1.5m), 14s period, S swell with 816 kJ wave energy.
  • Next surfable swell (1★+): Friday 7 Aug, 12AM (local time) - 4.5ft (1.4m), 11s period with SE 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 (Aug 07) at 12AM. The primary swell is predicted to be 1.4m and 11s period with a secondary swell of 1.0m 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 1.5m 14s and forecast to arrive on Friday (Aug 07) at 9AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.8m 7s period and expected on Sunday (Aug 09) at 9AM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+)12AM (Fri 7th Aug)4.5ft (1.4m) 11s
Best Surf 3AM (Fri 7th Aug)3.5ft (1.0m) 16s
Most Powerful 9AM (Fri 7th Aug)5ft (1.5m) 14s

Table - best surf conditions forecast for Kahutara over the next 16 days.


The Lowdown

Alright folks, Rusty here. Let’s look at what’s on the cards for Kahutara. We’ve got a solid run of surf coming, but the first few days are just the warm-up before the main event. The water sits at 50.4°F, which is about average for this time of year, so nothing unusual there.

We kick off on Thursday the 6th with a small 4.6ft swell from the SE. It’s clean enough, but the wind is a light cross-on from the E, so don’t expect perfection. The energy is moderate at 714, and it’s a bit marginal.

Friday the 7th is where things start to get interesting. The morning shows a solid 4.9ft swell from the S, with a long 14-second period. That’s proper groundswell energy, and with a clean offshore wind from the WNW, it’s going to be lined up and powerful. The energy is strong at 1167. This is a standout for experienced surfers. The afternoon goes glassy with a 4.6ft S swell at 12 seconds – clean, but the morning is the pick.

Saturday the 8th is still good, with a 3.9ft S swell in the morning and glassy conditions. It won’t have the punch of Friday, but it’s a fun size. The energy drops to 413. The afternoon gets cloudy but stays glassy with a 3.6ft wave.

Sunday the 9th and Monday the 10th fade fast. Swell drops to under 3ft from the SSE, energy falls to 164 and 133, and conditions are just ordinary. Not worth paddling out for.

Tuesday the 11th is a write-off. We’ve got onshore winds and a choppy mess. Energy is low to moderate, but the quality is poor. Skip it.

Wednesday the 12th sees a small bounce in swell to 3.9ft from the SE, with glassy conditions in the morning. It’s short-period at 8 seconds, so the waves will be a bit weak, but it’s clean. Energy is moderate at 324.

We then hit a big gap from Thursday the 13th through Friday the 14th with flat to tiny surf. Not worth mentioning.

Now, the real deal arrives on Saturday the 15th. A 5.6ft ENE swell shows up in the morning, with clean, cross-off winds. Energy is moderate at 416. It’s not huge, but it’s fun and clean.

Sunday the 16th is a serious step up. We get a 11.5ft swell from the S, and the afternoon sees clean cross-off winds from the SW. The energy is strong to very strong at 2320. This is only for experts, but the conditions are excellent.

Monday the 17th continues the run. A 9.8ft S swell in the morning, with light cross-off winds and energy at 3210. Another one for experienced surfers only. The afternoon gets windier but stays clean.

Tuesday the 18th is still big, with a 11.5ft SSE swell and strong energy of 4725 in the morning. The wind picks up, but it stays cross-off. Marginal conditions for the size, but still surfable for the brave.

Wednesday the 19th is the big standout of the entire forecast. A 13.1ft SE swell with a long 13-second period, light cross-off winds, and very strong energy at 4727. The wave shape will be excellent for those who can handle it. The afternoon is still pumping with a 11.5ft SE swell at 12 seconds. This is the peak.

Thursday the 20th brings a 8.2ft SSE swell in the morning with glassy conditions. Energy is still strong at 2313. Clean, but big.

Friday the 21st is a nice way to wrap it up. A 6.2ft ESE swell with a 12-second period, glassy in the morning. Energy is strong at 1011. A good, clean, powerful wave to close out the period.

That’s the picture from here. Stay safe out there.

Short Range Forecast

Mostly dry. Very mild (max 15°C on Sun morning, min 5°C on Thu afternoon). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Very mild (max 16°C on Sun afternoon, min 8°C on Sun night). Wind will be generally light.

Thu
6
Friday
7
Saturday
8
Sunday
9
Monday
10
Tuesday
11
Wednesday
12
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
3
4
3
3
2
2
2
1
1
1
1
1
2
0
0
1
2
2
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.4
SE
10
1.4
SE
11
1.5
S
14
1.4
S
12
1.3
S
11
1.2
S
11
1.1
S
10
1.1
SSE
10
0.9
SSE
10
0.8
SSE
10
0.8
SSE
10
0.9
SSE
9
1.1
S
9
1
S
8
0.8
SE
11
1.1
SSE
8
1.1
SE
7
1.2
SE
8
1.1
SE
8
0.7
SE
8
Wave Graph
Metric surfscale
Energy kJ
416
408
816
600
433
332
250
250
160
120
111
124
189
134
155
157
140
201
159
62
Wind (km/h)
5
E
5
NNW
5
WNW
0
NNE
5
NW
5
NNW
5
E
5
NNW
10
NNW
5
NNW
5
SW
5
W
10
SSE
5
NNW
15
NE
20
ENE
15
NE
5
NW
5
NE
10
WNW
Wind State
cross-on
cross-off
off
glassy
cross-off
glassy
glassy
cross-off
cross-off
glassy
cross-off
cross-off
cross-on
glassy
cross-on
cross-on
cross
glassy
glassy
off
High Tide
10:45PM1.89m
11:10AM1.97m
11:40PM1.90m
12:07PM2.02m
00:36AM1.93m
1:05PM2.07m
1:34AM1.97m
2:01PM2.11m
2:31AM2.01m
2:56PM2.15m
3:26AM2.04m
3:51PM2.16m
Low Tide
4:28PM0.58m
4:59AM0.51m
5:29PM0.56m
5:55AM0.47m
6:31PM0.52m
6:49AM0.43m
7:28PM0.44m
7:43AM0.37m
8:22PM0.37m
8:40AM0.32m
9:16PM0.32m
9:38AM0.27m
10:10PM0.29m
clear
part cloud
part cloud
part cloud
part cloud
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cloud
cloud
part cloud
part cloud
clear
clear
clear
part cloud
cloud
cloud
cloud
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:28
7:28
7:26
7:24
7:24
7:22
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:31
5:32
5:34
5:35
5:36
5:37
5:37
 mm
Temp °C
7
6
9
9
10
12
11
11
15
16
12
12
11
9
10
10
11
15
16
14
Feels °C
4
3
6
6
6
10
9
9
14
14
10
9
8
7
6
5
9
14
14
12
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  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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.

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