Kahutara Surf Break

Lat Long: 42.43° S 173.59° E

Kahutara Surf Forecast and Surf Report

Issued: 5 am 23 Aug 2026 (local time)

Forecast update in  hr  min

Today's Kahutara sea temperature is
9.8°C
0.5° 

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


Kahutara surf forecast from 23 Aug 2026:

  • Best quality surf: Monday 24 Aug, 6AM (local time) - 6.5ft (2.0m), 13s period, S swell with cross-offshore winds.
  • Most powerful swell: Monday 24 Aug, 6AM (local time) - 6.5ft (2.0m), 13s period, S swell with 1,419 kJ wave energy.
  • Next surfable swell (1★+): Monday 24 Aug, 12AM (local time) - 1ft (0.3m), 13s period with ESE 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 Monday (Aug 24) at 12AM. The primary swell is predicted to be 0.3m and 13s period with a secondary swell of 0.4m and 9s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Kahutara in the next 16 days are 2.0m 13s and forecast to arrive on Monday (Aug 24) 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 2.5m 7s period and expected on Friday (Aug 28) at 6AM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+)12AM (Mon 24th Aug)1ft (0.3m) 13s
Best Surf 6AM (Mon 24th Aug)6.5ft (2.0m) 13s
Most Powerful 6AM (Mon 24th Aug)6.5ft (2.0m) 13s

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


The Lowdown

G’day, Rusty here, looking at what’s comin’ down the line at Kahutara.

The window kicks off with a flat, messy start this Sunday the 23rd. We got a little 0.4m push from the SSE on Sunday mornin’ but a howling 35 km/h WNW offshore is just tearin’ it up, so forget about it. The afternoon’s even worse with 40 km/h winds. No surf to speak of. Then Monday the 24th brings the first real flicker of life. A clean 1.8m S swell rolls in with a 14-second period, and a light NW breeze in the mornin’ makes it look pretty good. The combined energy’s a solid 1313 (moderate) so there’s some punch there, but this one’s aimed at the experienced crew – 1.8m with that period gets a bit hefty for beginners. Monday afternoon the wind turns cross-shore and drops the quality.

The real standout in this whole stretch is Monday the 24th morning. That’s your best bet. Clean wave face, decent size, and that S swell direction is right in the sweet spot for Kahutara’s optimum. Water temp’s at 10°, which is about 0.5° below the long-term average – pretty normal for this time of year, so no surprises there.

Tuesday the 25th into Wednesday the 26th drops off quick. Swell fades to 0.6m-0.7m with long periods (15-16 secs) but the energy’s weak (around 242-248). Offshore winds keep it clean, but honestly it’s small and gutless. Might be a fun little wave if you’re on a log, but nothin’ to write home about. Then Thursday the 27th sees a jump to 1.5m with a massive 17-second period and energy up to 1379, but the light cross-onshore puts a ripple on it. It’s rideable but won’t be pristine. Friday the 28th afternoon glass off with 1.0m S swell and zero wind – that’s your sneaky clean session if you’re patient.

A big gap opens from Saturday the 29th through till Monday the 31st. Wave heights bounce up to 2.5m on Monday afternoon but the cross-onshore wind and questionable tide make it marginal. Then we hit a dry spell until the 1st of September. Tuesday the 1st is small again (1.4m) but clean with light offshore flow.

Now here’s the long-range hero: Sunday the 6th of September. Big, clean 3.5m S swell rolls in with a light offshore breeze. The combined energy is 3140 (strong) – that’s a serious amount of water moving. Period drops a bit to 11 seconds, so it’s more of a wind swell, but it’s solid, clean, and powerful. That’s for experts only. Monday the 7th keeps the size with 2.5m but adds light rain and onshore flow, so less clean.

Overall, Kahutara (New Zealand) ain’t firing on all cylinders for the first week, but that Monday the 24th morning stands out if you can get out. The long-range Sunday the 6th looks like a beast, but a week and a half out, treat it as promising but not locked in. Crowds here are “sometimes” so you might have company on the good days.

Rusty.

Short Range Forecast

Light rain (total 2mm), mostly falling on Sun morning. Very mild (max 17°C on Tue afternoon, min 8°C on Sun night). Winds decreasing (strong winds from the WNW on Sun morning, calm by Tue night).

Days 4-6 Weather Summary

Light rain (total 5mm), mostly falling on Thu morning. Very mild (max 17°C on Fri afternoon, min 11°C on Wed night). Wind will be generally light.

Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
1
4
2
2
2
2
2
2
1
3
3
3
3
2
2
2
1
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.4
SSE
9
0.3
ESE
13
0.3
ESE
13
1.8
S
14
1.3
S
14
1
S
11
0.6
S
16
0.6
S
15
0.8
S
16
0.7
S
15
0.5
S
14
0.9
S
16
1.5
S
17
1.4
S
16
1.3
S
15
1.1
S
13
1
S
12
0.9
S
11
0.8
S
10
0.7
S
10
0.7
S
9
Wave Graph
Metric surfscale
Energy kJ
29
34
34
1279
644
240
179
163
318
209
106
396
1251
977
711
395
282
192
135
94
80
Wind (km/h)
35
WNW
40
W
25
W
10
NW
5
NNE
10
WNW
20
WNW
20
WNW
10
SW
5
NNE
10
N
5
NW
5
SSE
5
ENE
5
N
10
NNW
0
SSE
10
NW
10
N
30
W
20
N
Wind State
off
off
off
cross-off
cross
off
off
off
cross-off
cross-off
cross-off
off
cross-on
cross-on
cross-off
cross-off
glassy
off
cross-off
off
cross-off
High Tide
12:56PM1.86m
1:17AM1.76m
1:45PM1.85m
2:06AM1.76m
2:32PM1.85m
2:52AM1.77m
3:17PM1.87m
3:36AM1.79m
3:59PM1.88m
4:18AM1.81m
4:40PM1.91m
5:00AM1.83m
5:20PM1.93m
Low Tide
7:19PM0.73m
7:21AM0.70m
8:03PM0.71m
8:08AM0.67m
8:46PM0.67m
8:57AM0.62m
9:30PM0.63m
9:46AM0.57m
10:14PM0.58m
10:31AM0.53m
10:58PM0.53m
11:13AM0.49m
11:41PM0.50m
rain showers
clear
clear
clear
part cloud
cloud
cloud
part cloud
part cloud
part cloud
cloud
part cloud
light rain
light rain
part cloud
clear
clear
part cloud
clear
clear
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:05
7:05
7:03
7:01
7:00
6:58
6:56
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:50
5:51
5:52
5:52
5:53
5:54
5:55
 mm
2
3
2
5
Temp °C
13
12
10
15
15
14
16
17
13
15
16
16
11
12
14
16
17
13
15
14
13
Feels °C
5
2
2
12
12
8
11
11
9
12
13
14
10
11
13
14
16
10
12
7
6
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • 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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