Mangamaunu Surf Break

Lat Long: 42.31° S 173.75° E

Mangamaunu Surf Forecast and Surf Report

Issued: 11 pm 26 Jul 2026 (local time)

Forecast update in  hr  min

Today's Mangamaunu sea temperature is
11.2° C
0.5° 

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


Mangamaunu surf forecast from 26 Jul 2026:

  • Best quality surf: Saturday 1 Aug, 3PM (local time) - 13ft (4.0m), 9s period, S swell with cross-offshore winds.
  • Most powerful swell: Sunday 2 Aug, 3PM (local time) - 20ft (6.0m), 14s period, S swell with 12,922 kJ wave energy.
  • Next surfable swell (1★+): Monday 27 Jul, 9AM (local time) - 3.5ft (1.1m), 12s period with E swell.

Best Forecast Surf Conditions for Mangamaunu this week:

The surf forecast for Mangamaunu over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Jul 27) at 9AM. The primary swell is predicted to be 1.1m and 12s period with a secondary swell of 0.8m and 6s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Mangamaunu in the next 16 days are 6.0m 14s and forecast to arrive on Sunday (Aug 02) at 3PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.2m 7s period and expected on Friday (Jul 31) at 12AM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 9AM (Mon 27th Jul)3.5ft (1.1m) 12s
Best Surf 3PM (Sat 1st Aug)13ft (4.0m) 9s
Most Powerful 3PM (Sun 2nd Aug)20ft (6.0m) 14s

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


The Lowdown

Alright, let’s get into it. We’ve got one spot on the menu for the next couple of weeks, and it’s a cracker.

We’re looking at Mangamaunu, a classic advanced point break that’s very consistent and exposed to the swell. The best direction for this place is from the southeast, so we’ll be keeping an eye on that.

The water temperature is sitting about average for this time of year, so nothing too wild there.

First up, the action kicks off on Monday, July 27th. We’ve got a clean 3.6 ft to 4.3 ft easterly swell rolling in with a solid 12-13 second period. Winds are light and offshore or glassy. This is a proper groundswell with moderate energy, and it’s going to be some very clean, fun surf. It’s not huge, but the quality is there.

Tuesday, July 28th is where things start to get interesting. The swell bumps up to 5.9 ft from the ESE, still with that 13-second period, and the winds are glassy in the morning and light offshore. The combined energy jumps significantly, and the forecast says it’s excellent surf for experienced surfers. The waves will have more push and shape, and with those clean conditions, this is a standout morning. The afternoon is just as good with glassy conditions.

Wednesday, July 29th holds solid at 4.6 ft to 4.9 ft, still clean, still with that long-period groundswell energy. The wind starts to go a little cross-off in the morning but goes glassy again in the afternoon. Still very good surf.

Thursday, July 30th, and Friday, July 31st, see the swell slowly dropping. Thursday morning has 3.6 ft with a light cross-off, and the energy drops. Friday gets smaller, down to 2.3 ft to 2.6 ft, and the wind picks up on Friday afternoon to a moderate breeze. The energy gets weak. It’s surfable, but pretty ordinary.

Now, Saturday, August 1st, and Sunday, August 2nd, are a different story entirely. A massive south-southwest swell hits, absolutely jacking up to 9.8 ft on Saturday morning, then 13.1 ft in the afternoon, and then peaking at 14.8 ft to 19.7 ft on Sunday. The combined energy is off the charts – into the thousands and then the tens of thousands. This is a monster. The problem is, it’s way too big for this break. The period is short on Saturday (8-9 seconds) but gets long again on Sunday (13-14 seconds). The wind is a strong cross-off, but the size makes it a serious danger zone. This is expert-only if you’re even thinking about it, but honestly, with that much power and size, it’s probably more interesting for the kite surfers than paddle surfers. The forecast itself says it’s too big for this break.

After that massive pulse, Monday, August 3rd, brings a much more manageable 8.2 ft from the SSE with a 12-second period. The wind is offshore in the morning and dead glassy in the afternoon. That’s a solid, powerful groundswell with strong energy, and it’s excellent for experienced surfers. This is another true standout. The conditions are perfect.

Tuesday, August 4th, still has a solid 7.2 ft to 7.5 ft from the SE with clean winds and glassy afternoons. The energy is still strong, so it’s still very good.

Wednesday, August 5th, drops a little to 5.2 ft to 5.6 ft from the SE with a 13-second period. Morning is clean, but the afternoon gets a cross-on wind that messes with the quality a bit.

Thursday, August 6th, fades to small, weak surf, 2.3 ft to 3.0 ft with low energy. Not worth getting too excited about.

Then, Friday, August 7th, throws in a sneaky good one. We get a 7.9 ft to 8.2 ft pulse from the SE, but the period drops to 8 seconds. That’s a shorter period wind swell, but it’s glassy and clean, and the energy is still decent. It’ll be fun, but it won’t have the same grunt as the longer period stuff.

Saturday, August 8th, is smaller and shorter period, fading out.

Sunday, August 9th, brings another solid pulse, 7.5 ft to 7.9 ft from the east with a clean 8-second period. Glassy conditions all day, with strong energy. It’s a bit shorter period, but the size and clean conditions make it a good option.

Monday, August 10th, is a big one. We get 9.8 ft from the east

Short Range Forecast

Mostly dry. Very mild (max 13°C on Wed morning, min 4°C on Sun night). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 7mm), mostly falling on Fri night. Very mild (max 15°C on Thu morning, min 4°C on Sat morning). Winds increasing (calm on Thu morning, fresh winds from the SW by Sat afternoon).

Monday
27
Tuesday
28
Wednesday
29
Thursday
30
Friday
31
Saturday
1
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
3
3
3
4
4
2
3
3
3
2
2
2
1
1
3
2
!
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.8
E
13
1.1
E
12
1.3
ESE
13
1.6
ESE
13
1.8
ESE
13
1.8
ESE
13
1.7
ESE
13
1.5
ESE
13
1.4
ESE
12
1.2
ESE
12
1.1
ESE
12
1
E
12
0.8
ESE
11
0.8
E
11
0.7
E
12
3
SSW
13
3
SSW
8
4
S
9
3.5
S
11
Wave Graph
Metric surfscale
Energy kJ
225
377
590
865
1044
1077
946
703
567
439
361
274
170
154
132
2578
1202
2532
3056
Wind (km/h)
10
W
5
WNW
5
SE
10
NW
5
WNW
5
E
10
N
5
WNW
5
S
10
NW
10
NW
5
N
10
NNW
10
NW
20
NW
30
SSW
25
SW
35
SW
40
SSW
Wind State
off
off
glassy
cross-off
glassy
glassy
cross
cross-off
glassy
cross-off
cross-off
glassy
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
2:48AM1.32m
3:14PM1.46m
3:32AM1.32m
3:58PM1.47m
4:16AM1.33m
4:42PM1.48m
4:59AM1.33m
5:25PM1.48m
5:43AM1.33m
6:08PM1.47m
6:27AM1.33m
6:51PM1.46m
Low Tide
8:53AM0.30m
9:31PM0.33m
9:37AM0.28m
10:16PM0.31m
10:22AM0.26m
11:00PM0.29m
11:06AM0.25m
11:44PM0.28m
11:50AM0.24m
00:28AM0.26m
12:35PM0.23m
1:11AM0.25m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
part cloud
rain showers
light rain
light rain
heavy rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:39
7:39
7:37
7:37
7:35
7:35
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:22
5:22
5:23
5:24
5:25
5:27
 mm
4
1
2
11
Temp °C
5
9
9
7
11
12
9
13
13
11
15
15
12
13
12
9
4
5
5
Feels °C
1
6
6
3
8
9
5
11
11
8
13
13
9
9
7
5
-3
-3
-5
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 
submit an eyeball surf report

Quick surf report for Mangamaunu:

join our community of surf reporters

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Mangamaunu surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


Information about the Mangamaunu Surf forecast

The above surf forecast table for Mangamaunu provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Mangamaunu can be found by selecting the local surf guide option on the grey menu. Our Mangamaunu 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 (Mangamaunu) 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 Mangamaunu 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.

Mangamaunu is 89 km (55 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.

Nearest locationNearest