Mangamaunu surf break

Mangamaunu surfForecast / Kaikoura and Marlborough / New Zealand

information circle12 Day Weather and Surf, issued 12 pm Friday 26 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
16.0° C
(Which is 1.3°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 Tuesday (Dec 30) at 4AM. The primary swell is predicted to be 0.8m and 8s period with a secondary swell of 0.7m and 6s. Another secondary swell of 0.2m and 9s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Mangamaunu in the next 12 days are 3.5m 10s and forecast to arrive on Wednesday (Dec 31) at 1AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.2m 7s period and expected on Friday (Dec 26) at 7PM.

Wave TypeTime (NZDT) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Tue 30th Dec)2.5ft (0.8m) 8s
Best Surf10PM (Wed 31st Dec)6ft (1.8m) 8s
Most Powerful 1AM (Wed 31st Dec)11ft (3.5m) 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 afternoon. Warm (max 22°C on Fri afternoon, min 12°C on Sun night). Wind will be generally light.

Days 3-6 Weather Summary Heavy rain (total 56mm), heaviest during Tue afternoon. Very mild (max 16°C on Wed afternoon, min 12°C on Mon night). Wind will be generally light.

Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Thursday
01
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
1
1
0
0
0
0
0
0
0
0
0
0
1
1
2
3
1
2
2
2
1
Swell
Height Map
Wave Height (m) & direction (?)
0.4
SSE
1.2
NE
0.5
NE
0.2
SSE
0.2
ENE
0.4
S
0.1
S
0.5
S
0.3
ENE
0.5
S
0.6
SSE
0.8
SSE
1.1
E
1.7
E
3.5
SE
2
ESE
2.1
ESE
1.3
E
0.9
SSE
0.9
SE
0.6
SE
Period(s) (?)9768971349998891099810109
Wave
Graph
(?)Metric surfscale
Energy kJ (?)261351568163816405887169465252565565923517113965
Wind
(km/h)
5
N
0
SSW
10
WNW
5
ESE
25
NNE
5
SW
10
S
10
SE
0
WNW
10
SSE
15
SSE
10
S
15
SSE
20
SSE
15
S
15
SW
25
SSW
5
S
10
E
10
ENE
5
SSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
glassglassoffoncross-
on
cross-
off
crosscross-
on
glasscrosscross-
on
crosscross-
on
cross-
on
crosscross-
off
cross-
off
glassononglass
High Tide
/ height (m)
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
2:30PM
1.50
3:03AM
1.64
3:27PM
1.53
4:00AM
1.71
Low Tide
/ height (m)
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
8:40PM
0.08
9:20AM
0.11
9:37PM
0.05
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Thursday
01
Sunrise5:46--5:47--5:48--5:48--5:48--5:50--5:50--
Sunset-9:02--9:02--9:02--9:04--9:04--9:04--9:04-
rain showers
clear
clear
rain showers
light rain
part cloud
part cloud
part cloud
clear
clear
part cloud
light rain
light rain
heavy rain
heavy rain
part cloud
light rain
rain showers
part cloud
part cloud
clear
Rain (mm)
1--14------122218-112---
Temp. °C212217171714151514151513131213151614182018
Feels °C (?)20211315141313131413121111910111213172019
  • 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 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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