Kahutara Surf Break

Lat Long: 42.43° S 173.59° E

Kahutara Surf Forecast and Surf Report

Issued: 5 pm 04 Sep 2026 (local time)

Forecast update in  hr  min

Today's Kahutara sea temperature is
10.7°C
0.3° 

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


Kahutara surf forecast from 4 Sep 2026:

  • Best quality surf: Tuesday 8 Sep, 6PM (local time) - 7ft (2.2m), 8s period, SSE swell with cross-offshore winds.
  • Most powerful swell: Friday 11 Sep, 9AM (local time) - 8ft (2.5m), 9s period, S swell with 1,189 kJ wave energy.
  • Next surfable swell (1★+): Saturday 5 Sep, 6AM (local time) - 1ft (0.3m), 15s 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 Saturday (Sep 05) at 6AM. The primary swell is predicted to be 0.3m and 15s period with a secondary swell of 0.4m and 8s. 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 2.5m 9s and forecast to arrive on Friday (Sep 11) 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 1.6m 6s period and expected on Tuesday (Sep 08) at 12PM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 6AM (Sat 5th Sep)1ft (0.3m) 15s
Best Surf 6PM (Tue 8th Sep)7ft (2.2m) 8s
Most Powerful 9AM (Fri 11th Sep)8ft (2.5m) 9s

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


The Lowdown

Alright, let’s talk about Kahutara. It’s a reef and point setup, beginner-friendly, but it’s not a machine – it’s fairly consistent. The water is cold, about 51°F, which is pretty average for this time of year.

We’re starting off flat. Friday the 4th has a tiny, weak swell in the morning with a 30 km/h offshore wind, but it’s poor. Saturday the 5th goes glassy in the morning with a 0.4m, 15-second groundswell. It’s surfable, but ordinary. The afternoon is cleaner with a 0.6m south swell.

Sunday the 6th is the first real day. The morning has a 0.6m, 17-second groundswell from the south, with a light cross-offshore wind. The energy is building. It’s clean and good.

Monday the 7th is a mess with onshore wind and rain. Forget it.

Tuesday the 8th brings a big jump in size – 2.3m from the SSE, but with a short 8-second period. The energy is huge, but it’s going to be a heavy, dumpy close-out. Only for experts, and even then it’s marginal. The wind is clean, but the wave is ugly.

Wednesday the 9th and Thursday the 10th are poor. Small and weak.

Friday the 11th is the standout. The afternoon goes glassy, dead calm, with a 1.9m south swell and a 10-second period. The energy is 996 – that’s a solid, powerful wave. The wind is zero, the surface is like glass. Kahutara will be handling this beautifully. It’s not for beginners at that size, but for anyone else, this is the session.

Saturday the 12th keeps it going. The afternoon has a 1.2m, 11-second south swell with a solid 20 km/h offshore wind. Clean, lined-up waves.

Sunday the 13th is another glassy day with 1.1m, 15-second groundswell. The whole day is clean, smooth, and easy paddling.

Monday the 14th is a drop-off, but the afternoon picks up a bit with a 1.4m, short-period swell and a clean cross-offshore wind.

Tuesday the 15th is marginal.

Then Wednesday the 16th – big one. The morning brings a 2.5m south swell with a 14-second period, and the energy is 2819. That’s a serious, powerful, expert-only wave. The wind is light and cross-offshore, so it’s clean. The afternoon has a 55 km/h offshore wind, which is near gale force – impossible to paddle into.

The rest of the window fades out with small, poor surf.

So, the best bets are Friday afternoon the 11th for that glassy, clean, solid swell, and Sunday morning the 13th for the long, clean groundswell. The Wednesday morning the 16th is a massive, expert-only beast. The long-range call is promising, but keep an eye on it.

Rusty.

Short Range Forecast

Heavy rain (total 32mm), heaviest during Sun night. Very mild (max 15°C on Sun morning, min 8°C on Sun night). Winds decreasing (fresh winds from the W on Fri night, calm by Sun afternoon).

Days 5-7 Weather Summary

Moderate rain (total 15mm), heaviest on Mon afternoon. Very mild (max 11°C on Wed afternoon, min 6°C on Tue night). Wind will be generally light.

Fri
4
Saturday
5
Sunday
6
Monday
7
Tuesday
8
Wednesday
9
Thursday
10
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
1
1
2
2
0
0
0
3
3
1
2
2
0
1
0
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.3
S
16
0.2
S
15
0.4
SSW
15
0.6
S
11
0.4
S
17
0.6
S
17
0.6
S
17
0.4
S
16
1.5
SE
6
1.7
ESE
7
2
ESE
8
2
SSE
8
1.9
SSE
8
1.7
SSE
8
1.4
SE
8
1
SE
7
0.7
SE
7
0.5
SE
7
0.4
SSW
15
1.6
S
6
Wave Graph
Metric surfscale
Energy kJ
44
18
71
88
90
200
205
80
170
277
499
502
464
372
210
107
49
25
79
170
Wind (km/h)
30
W
25
W
5
NW
10
NNW
5
NW
10
NNW
5
E
15
SSW
10
ESE
10
ESE
10
SW
15
W
15
SW
10
W
0
N
15
NE
10
NW
5
NNW
25
SSW
20
WSW
Wind State
off
off
glassy
cross-off
cross-off
cross-off
glassy
cross
on
on
cross-off
cross-off
cross-off
cross-off
glassy
cross-on
off
glassy
cross
cross-off
High Tide
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
3:02AM1.98m
3:28PM2.05m
Low Tide
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
9:17AM0.31m
9:45PM0.35m
clear
clear
cloud
cloud
part cloud
part cloud
rain showers
heavy rain
mod rain
mod rain
mod rain
light rain
rain showers
clear
clear
clear
part cloud
cloud
heavy rain
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:45
6:43
6:41
6:39
6:37
6:37
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:01
6:02
6:04
6:05
6:07
6:07
6:08
 mm
1
22
9
7
6
1
1
12
6
Temp °C
14
11
14
14
13
15
14
11
8
8
7
8
8
7
10
11
11
11
8
5
Feels °C
6
3
10
10
11
13
13
8
5
5
4
4
4
3
7
7
9
9
3
-1
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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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