Mangamaunu Surf Break

Lat Long: 42.31° S 173.75° E

Issued: 11 am 20 Jun 2026 (local time)

Forecast update in  hr  min

Today's Mangamaunu sea temperature is
12.1° C

Slightly warmer than usual

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


Mangamaunu surf forecast from 20 Jun 2026:

  • Best quality surf: Tuesday 23 Jun, 3AM (local time) - 5.5ft (1.7m), 15s period, S swell with cross-offshore winds.
  • Most powerful swell: Monday 22 Jun, 9PM (local time) - 7ft (2.1m), 16s period, S swell with 2,331 kJ wave energy.
  • Next surfable swell (1★+): Saturday 20 Jun, 9PM (local time) - 3.5ft (1.0m), 7s period with NE 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 Saturday (Jun 20) at 9PM. The primary swell is predicted to be 1.0m and 7s period with a secondary swell of 0.4m and 10s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Mangamaunu in the next 16 days are 2.1m 16s and forecast to arrive on Monday (Jun 22) at 9PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.0m 8s period and expected on Saturday (Jun 20) at 9PM.

Wave TypeTime (NZST) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Sat 20th Jun)3.5ft (1.0m) 7s
Best Surf 3AM (Tue 23rd Jun)5.5ft (1.7m) 15s
Most Powerful 9PM (Mon 22nd Jun)7ft (2.1m) 16s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Moderate rain (total 15mm), heaviest on Sun afternoon. Very mild (max 18°C on Sat afternoon, min 9°C on Sun afternoon). Wind will be generally light.

Days 4-6 Weather Summary

Moderate rain (total 17mm), heaviest on Thu morning. Very mild (max 13°C on Wed morning, min 5°C on Thu night). Winds increasing (calm on Tue night, strong winds from the SSW by Thu afternoon).

Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
0
0
1
1
1
0
0
3
3
3
2
0
0
2
0
0
1
1
1
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
S
12
0.7
S
11
0.4
SSW
15
0.4
SSW
14
0.4
SSW
13
0.3
SSW
13
0.7
S
12
1.5
S
15
1.9
S
16
1.4
S
14
1.3
S
13
1.1
S
12
0.9
S
11
0.6
ENE
8
1.5
S
6
1.2
S
6
0.3
SSW
15
1.7
S
14
1.4
S
14
1.2
S
13
1.4
S
15
Wave Graph
Metric surfscale
Energy kJ
220
114
71
63
59
35
146
1024
1764
780
581
342
189
49
181
105
42
1097
801
488
823
Wind (km/h)
10
NNW
15
NNE
10
SSE
10
ENE
10
SE
0
SE
10
NNE
20
NE
10
N
5
WNW
5
S
0
WNW
20
NNE
30
NNE
10
SSW
25
WSW
45
SSW
35
SW
25
WSW
25
WSW
15
W
Wind State
cross-off
cross-on
cross
cross-on
cross-on
glassy
cross-on
cross-on
cross
glassy
glassy
glassy
cross
cross-on
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
off
High Tide
9:28PM1.67m
9:57AM1.51m
10:23PM1.59m
10:54AM1.48m
11:18PM1.51m
11:49AM1.45m
00:10AM1.44m
12:41PM1.44m
1:00AM1.39m
1:30PM1.43m
1:48AM1.35m
2:17PM1.44m
2:34AM1.33m
Low Tide
3:11PM0.03m
3:50AM0.05m
4:08PM0.08m
4:44AM0.09m
5:04PM0.15m
5:36AM0.14m
5:59PM0.21m
6:25AM0.18m
6:52PM0.26m
7:12AM0.23m
7:43PM0.30m
7:58AM0.26m
8:31PM0.32m
part cloud
part cloud
rain showers
part cloud
mod rain
part cloud
part cloud
clear
clear
clear
part cloud
part cloud
rain showers
rain showers
cloud
mod rain
light rain
rain showers
cloud
light rain
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:54
7:54
7:54
7:54
7:54
7:54
7:54
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
4:58
4:59
4:59
4:59
4:59
5:00
5:00
 mm
6
9
1
2
7
4
3
1
Temp °C
16
18
17
12
12
9
12
11
10
12
12
11
13
13
13
9
8
6
6
6
5
Feels °C
14
16
15
11
11
7
8
6
7
11
10
10
8
8
11
3
-2
-4
-1
-1
0
Swell 1
Height (m)
Direction
Period (s)
0.9
S
12
1
NNE
6
0.6
NE
6
0.4
SSW
14
0.4
SSW
13
0.7
SSE
5
0.7
S
12
1.5
S
15
1.9
S
16
1.4
S
14
1.3
S
13
1.1
S
12
0.9
S
11
0.6
ENE
8
0.5
ENE
8
0.5
S
14
0.4
ENE
8
1.4
S
14
1.4
S
14
1.2
S
13
1.4
S
15
Energy kJ
220
85
21
63
59
23
146
1024
1764
780
581
342
189
49
34
93
21
779
801
488
823
Swell 2
Height (m)
Direction
Period (s)
0.2
NNE
8
0.7
S
11
0.4
SSW
15
0.3
S
4
0.2
ENE
10
0.4
SSW
9
0.3
ESE
4
0.2
E
9
0.5
ENE
5
0.5
ENE
5
0.5
ENE
5
0.5
ENE
6
0.4
SSW
15
0.4
ENE
8
0.3
SSW
15
0.4
ENE
8
0.4
ENE
8
0.8
S
16
0.4
ENE
8
Energy kJ
6
114
71
3
9
26
3
6
13
14
16
23
72
24
42
20
19
318
20
Swell 3
Height (m)
Direction
Period (s)
0.1
SE
16
0.1
NE
8
0.4
S
10
0.3
S
9
0.1
SE
15
0.3
SSW
13
0.2
ENE
9
0.1
E
14
0.1
E
8
0.1
E
8
0.5
ENE
5
0.4
SSW
14
0.4
S
10
0.3
S
9
0.2
S
9
0.1
E
13
0.4
ENE
8
0.2
ENE
11
Energy kJ
11
2
32
15
8
35
8
4
1
1
16
63
32
15
6
3
19
11
Wind waves
Height (m)
Direction
Period (s)
0.7
N
6
2.4
NNE
7
0.6
SSE
4
0.5
ENE
4
0.5
E
4
0.6
S
5
0.5
ENE
3
0.5
ENE
4
0.8
NE
5
0.9
NE
5
0.6
NNE
4
1.7
SSW
5
1.5
S
6
1.2
S
6
1.3
S
5
1.7
S
14
Energy kJ
32
574
11
9
6
17
5
8
31
38
16
174
181
105
80
1097
Nearest Offshore or Glassy
Rating
(10 max)
2
1
1
1
1
1
1
3
4
3
3
2
2
1
2
4
3
3
1
1
3
Distance (km)
0
285
12
13
124
0
13
100
4
0
0
0
30
144
0
173
198
173
157
157
0
Best forecast wave conditions in Kaikoura and Marlborough
Rating
(10 max)
2
1
1
1
1
2
4
3
3
2
2
2
3
Best forecast wave conditions in New Zealand
Rating
(10 max)
3
4
4
4
3
6
7
6
6
4
4
2
2
5
8
4
4
6
5
4
4
Header Global
Rating
(10 max)
6
5
8
9
6
8
8
6
6
5
5
7
9
7
8
5
4
9
9
9
9
  • 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 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.

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