Kahutara Surf Break

Lat Long: 42.43° S 173.59° E

Kahutara Surf Forecast and Surf Report

Issued: 5 pm 19 Jul 2026 (local time)

Forecast update in  hr  min

Today's Kahutara sea temperature is
11.1° 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 19 Jul 2026:

  • Best quality surf: Monday 20 Jul, 12PM (local time) - 7ft (2.1m), 19s period, S swell with glassy winds.
  • Most powerful swell: Monday 20 Jul, 12PM (local time) - 7ft (2.1m), 19s period, S swell with 2,992 kJ wave energy.
  • Next surfable swell (1★+): Monday 20 Jul, 3AM (local time) - 5ft (1.6m), 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 Monday (Jul 20) at 3AM. The primary swell is predicted to be 1.6m and 15s period with a secondary swell of 0.8m and 12s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Kahutara in the next 16 days are 2.1m 19s and forecast to arrive on Monday (Jul 20) at 12PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Monday (Jul 27) at 12AM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Mon 20th Jul)5ft (1.6m) 15s
Best Surf12PM (Mon 20th Jul)7ft (2.1m) 19s
Most Powerful12PM (Mon 20th Jul)7ft (2.1m) 19s

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


The Lowdown

Alright folks, Rusty here. Let’s have a proper look at what’s heading our way.

We’ve got a classic setup unfolding for Kahutara, a reef and point break that’s exposed to the south. The water is sitting at 52°, which is pretty much bang on average for this time of year – nothing unusual there. The coming days are a mixed bag, but there are a couple of windows that will have your toes tingling. The real standouts are Monday and Tuesday next week, with some serious groundswell hitting, but we’ve got to get through a few quieter days first.

The surf kicks off this Sunday afternoon, the 19th of July, but it’s a bit of a write-off. We’ve got a 5ft S swell, period a very long 15 seconds, cross-on wind, and the combined energy is strong at 1614. Honestly, it’s marginal; the wind is messy and the whole thing feels a bit off. Not one to chase.

Monday the 20th is where it starts to get interesting. Monday morning, we’ve got a 6ft S swell, still a long 15-second period, and the wind goes glassy with a light NW breeze. The combined energy jumps to a strong 2213. This is clean, high-quality surf for those who know what they’re doing. Then Monday afternoon gets even better – the swell bumps up to 7ft from the S, period stretching to 18 seconds, and it’s glassy with an ESE breeze. Energy is very strong at 2928. This is a solid session, but at 7ft, it’s pushing into expert territory, especially with that long period making it a bit tricky on the take-off. The point should handle it beautifully.

Tuesday the 21st still has some life. Morning sees a 5ft S swell with a 14-second period, light offshore NW wind, and clean conditions. Energy is moderate at 958. Afternoon drops to 4ft, but it’s glassy calm with an E wind. Both are good, clean options, but the standouts are definitely Monday.

After that, things go quiet. Wednesday the 22nd through Saturday the 25th is a real dry spell. Swell drops to 3ft or less, energy is weak, and the wind is generally cross or cross-off. Wednesday afternoon is particularly poor – 1ft with a cross-shore chop. Not worth the paddle.

There’s a little blip on Saturday the 25th afternoon with a 4ft S swell, but the period is a short 5 seconds, so it’s weak and won’t have any shape. The wind is offshore, so it’s clean, but it’s the worst kind of windswell.

Now, looking further ahead, things get a bit wild. Sunday the 26th has a 3ft ESE swell, period 15 seconds, but the wind is howling 19 mph from the west. The energy is moderate at 484, but that wind is going to be a real problem. It’s more of a kite day than a paddle day.

The big one arrives on the 27th of July. Monday morning, the swell jumps to 8ft from the S, period 12 seconds, with a strong offshore WNW wind at 22 mph. The combined energy is very strong at 2010. This is a serious, powerful groundswell. Monday afternoon gets even bigger, hitting 10ft, but the wind gets messy with a cross-off from the WSW at 25 mph. This is purely for experts only. The 28th of July keeps that 10ft S swell, but the wind is still cross-off and strong. It’s big, it’s powerful, and it’s not for the faint-hearted.

By the 29th, the swell drops back to a more manageable 5ft, with clean conditions and a light NNW wind. The 30th and 31st are small and weak, but the 1st of August brings a nice clean 5ft S swell with a 14-second period and light winds. A solid, fun option to finish the run.

The clear standout is Monday the 20th of July. The 6ft to 7ft S groundswell, glassy conditions, and strong energy make it the pick of the period. The 27th and 28th are massive, but only for the most experienced. As for the rest, it’s a waiting game between the pulses.

Rusty.

Short Range Forecast

Light rain (total 2mm), mostly falling on Sun afternoon. Very mild (max 11°C on Tue morning, min 7°C on Mon night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Very mild (max 14°C on Fri morning, min 7°C on Fri night). Winds increasing (calm on Thu morning, fresh winds from the W by Sat morning).

Sun
19
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
Saturday
25
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
3
4
4
4
3
3
3
2
1
0
1
0
0
0
0
0
0
1
1
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.6
S
15
1.6
S
15
1.7
S
15
2.1
S
18
1.8
S
16
1.5
S
14
1.3
S
13
1
S
12
0.8
S
11
0.4
SSW
13
0.4
SSE
13
0.3
S
8
0.3
S
9
0.3
SSE
10
0.3
SSE
9
0.3
SSE
9
0.3
SE
13
0.4
SE
13
1.3
SSW
5
0.6
SE
16
Wave Graph
Metric surfscale
Energy kJ
1195
1114
1349
2678
1546
877
577
264
152
57
53
13
13
19
17
17
27
51
74
203
Wind (km/h)
10
S
0
SW
5
NW
5
ESE
10
NNE
5
NW
0
E
5
WNW
10
SW
15
SSW
5
N
5
NW
5
NNE
10
NNW
10
NNW
10
NNW
5
W
15
WSW
15
W
15
SSW
Wind State
cross-on
glassy
glassy
glassy
cross
off
glassy
off
cross-off
cross
cross-off
cross-off
glassy
cross-off
cross-off
cross-off
glassy
cross-off
off
cross
High Tide
8:51PM2.02m
9:21AM1.98m
9:46PM1.96m
10:14AM1.96m
10:39PM1.92m
11:05AM1.94m
11:29PM1.87m
11:57AM1.92m
00:18AM1.84m
12:47PM1.92m
1:07AM1.81m
1:35PM1.91m
1:56AM1.79m
Low Tide
3:06AM0.40m
3:27PM0.46m
4:00AM0.46m
4:24PM0.57m
4:53AM0.53m
5:22PM0.65m
5:44AM0.59m
6:19PM0.70m
6:31AM0.65m
7:12PM0.72m
7:15AM0.68m
7:59PM0.73m
light rain
part cloud
part cloud
clear
clear
part cloud
cloud
part cloud
cloud
part cloud
part cloud
part cloud
clear
part cloud
cloud
part cloud
part cloud
clear
cloud
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:47
7:47
7:46
7:45
7:43
7:43
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:15
5:15
5:16
5:17
5:19
5:20
5:21
 mm
2
3
Temp °C
9
9
10
10
8
11
11
10
10
11
8
12
13
12
14
14
9
9
10
8
Feels °C
7
7
8
8
5
9
9
8
7
7
6
10
11
9
13
11
2
1
5
5
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  • 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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