Mangamaunu surf break

Mangamaunu surfForecast / Kaikoura and Marlborough / New Zealand

information circle12 Day Weather and Surf, issued 6 pm Wednesday 24 Dec 2025 NZDT
Forecast update in hr  min  s Forecast update imminent
Mangamaunu surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Mangamaunu sea temperature is
15.7° C
(Which is 1.1°C warmer than normal for this time of year)


Best Forecast Surf Conditions for Mangamaunu this week:

The surf forecast for Mangamaunu over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Dec 25) at 1AM. The primary swell is predicted to be 1.0m and 9s period with a secondary swell of 0.6m and 5s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Mangamaunu in the next 12 days are 2.2m 10s and forecast to arrive on Wednesday (Dec 31) at 7PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.4m 7s period and expected on Friday (Dec 26) at 10AM.

Wave TypeTime (NZDT) & Date Wave Height & Period
Next good surf (1 star+) 1AM (Thu 25th Dec)3.5ft (1.0m) 9s
Best Surf 4AM (Wed 31st Dec)7ft (2.2m) 9s
Most Powerful 7PM (Wed 31st Dec)7ft (2.2m) 10s

Table - best surf conditions forecast for Mangamaunu over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Light rain (total 6mm), mostly falling on Sat morning. Warm (max 23°C on Wed afternoon, min 14°C on Fri night). Wind will be generally light.

Days 3-6 Weather Summary Heavy rain (total 58mm), heaviest during Mon night. Very mild (max 18°C on Sun afternoon, min 10°C on Tue morning). Wind will be generally light.

Wed
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
2
1
0
1
1
0
1
0
0
0
0
0
0
0
1
2
1
2
1
3
4
Swell
Height Map
Wave Height (m) & direction (?)
1
SSE
1
S
0.5
SSE
0.8
SSE
0.6
SSE
0.4
SSE
0.9
NE
0.4
NE
0.4
SSW
0.3
ENE
0.4
S
0.3
S
0.2
ENE
0.5
ENE
0.4
S
1.1
E
1.2
S
1.3
E
1.5
E
1.9
E
2.1
E
Period(s) (?)99111099654965948698899
Wave
Graph
(?)Metric surfscale
Energy kJ (?)1891526511165265410816104882189215219291562686
Wind
(km/h)
5
SSE
5
W
15
NE
5
NE
5
W
0
S
5
WNW
15
WNW
5
ESE
20
ENE
5
W
10
SE
15
E
5
NNW
5
SW
10
SE
20
SSW
10
SW
10
S
5
SW
5
SW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
glassglasscross-
on
glassoffglassglassoffcross-
on
cross-
on
offcross-
on
onglasscross-
off
cross-
on
cross-
off
cross-
off
crossglasscross-
off
High Tide
/ height (m)
9:01PM
1.30
9:24AM
1.46
9:46PM
1.30
10:08AM
1.45
10:33PM
1.32
10:55AM
1.44
11:22PM
1.35
11:44AM
1.45
12:15AM
1.41
12:37PM
1.46
1:09AM
1.48
1:33PM
1.47
2:06AM
1.56
Low Tide
/ height (m)
3:08AM
0.26
3:47PM
0.26
3:53AM
0.26
4:30PM
0.24
4:40AM
0.25
5:15PM
0.22
5:31AM
0.23
6:03PM
0.19
6:25AM
0.21
6:53PM
0.16
7:22AM
0.18
7:45PM
0.12
8:20AM
0.15
Wed
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Sunrise--5:46--5:46--5:47--5:48--5:48--5:48--5:50
Sunset9:01--9:01--9:02--9:02--9:02--9:04--9:04--
clear
clear
clear
clear
rain showers
clear
clear
clear
rain showers
rain showers
clear
clear
rain showers
mod rain
light rain
light rain
heavy rain
light rain
light rain
light rain
light rain
Rain (mm)
----2---42--1945334111
Temp. °C231821211921211716171617181515151311111212
Feels °C (?)2216202017191914141315151614151412891211
  • Map Icons:
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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 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 12 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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