Mangamaunu surf break

Mangamaunu surfForecast / Kaikoura and Marlborough / New Zealand

information circle12 Day Weather and Surf, issued 12 am Tuesday 30 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
16.8° C
(Which is 2.1°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 Wednesday (Dec 31) at 10AM. The primary swell is predicted to be 2.0m and 9s period with a secondary swell of 1.7m and 9s. Another secondary swell of 1.9m and 8s 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 2.5m 10s and forecast to arrive on Wednesday (Dec 31) at 1AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.0m 6s period and expected on Thursday (Jan 01) at 1PM.

Wave TypeTime (NZDT) & Date Wave Height & Period
Next good surf (1 star+)10AM (Wed 31st Dec)6.5ft (2.0m) 9s
Best Surf10AM (Wed 31st Dec)6.5ft (2.0m) 9s
Most Powerful 1AM (Wed 31st Dec)8ft (2.5m) 10s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Heavy rain (total 40mm), heaviest during Tue afternoon. Warm (max 22°C on Thu morning, min 13°C on Mon night). Wind will be generally light.

Days 3-6 Weather Summary Moderate rain (total 13mm), heaviest on Fri afternoon. Very mild (max 18°C on Thu night, min 12°C on Sat night). Wind will be generally light.

Tuesday
30
Wednesday
31
Thursday
01
Friday
02
Saturday
03
Sunday
04
Mon
05
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
0
2
0
3
4
3
2
2
0
1
1
0
1
0
1
2
1
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.8
E
1.5
ESE
1.5
E
2.5
E
2
E
2.2
ESE
1.7
ESE
0.9
ESE
0.8
ESE
0.6
E
0.4
SE
0.6
E
0.6
E
0.5
E
1.8
S
1.4
S
1.1
S
1
S
0.8
SSE
0.8
SSE
0.7
SSE
Period(s) (?)5681099888888986777787
Wave
Graph
(?)Metric surfscale
Energy kJ (?)381933011273721784422120864321415434255200127106658144
Wind
(km/h)
10
SSE
10
SE
15
SSE
25
S
15
WSW
10
ENE
10
NW
0
SSE
10
S
0
SSE
10
SSW
10
SSE
15
SSW
15
S
25
SW
10
WSW
10
ESE
15
ENE
15
NNE
10
S
10
SSE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
cross-
on
crosscross-
off
cross-
off
cross-
on
cross-
off
glasscrossglasscross-
off
crosscross-
off
cross-
off
cross-
off
cross-
off
cross-
on
oncross-
on
crosscross
High Tide
/ height (m)
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
4:25PM
1.55
4:57AM
1.76
5:22PM
1.57
5:54AM
1.79
6:18PM
1.58
6:50AM
1.79
Low Tide
/ height (m)
7:22AM
0.18
7:45PM
0.12
8:20AM
0.15
8:40PM
0.08
9:20AM
0.11
9:37PM
0.05
10:20AM
0.07
10:35PM
0.01
11:19AM
0.05
11:32PM
-0.01
12:17PM
0.03
12:30AM
-0.02
1:14PM
0.02
Tuesday
30
Wednesday
31
Thursday
01
Friday
02
Saturday
03
Sunday
04
Mon
05
Sunrise-5:48--5:50--5:50--5:52--5:52--5:54--5:54-
Sunset--9:04--9:04--9:04--9:04--9:04--9:04--9:04
rain showers
mod rain
heavy rain
mod rain
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
rain showers
mod rain
light rain
light rain
part cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
Rain (mm)
282010------1633-------
Temp. °C131313131518182221181615141314131617151818
Feels °C (?)1112109131717232019151412109101414131717
  • 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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