Mangamaunu surf break

Mangamaunu surfForecast / Kaikoura and Marlborough / New Zealand

information circle12 Day Weather and Surf, issued 12 am Wednesday 21 Jan 2026 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
16.7° 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 Friday (Jan 23) at 1AM. The primary swell is predicted to be 3.5m and 11s period with a secondary swell of 0.5m and 10s. 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 4.5m 12s and forecast to arrive on Sunday (Jan 25) at 7AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Friday (Jan 23) at 1AM.

Wave TypeTime (NZDT) & Date Wave Height & Period
Next good surf (1 star+) 1AM (Fri 23rd Jan)11ft (3.5m) 11s
Best Surf 4AM (Sun 25th Jan)13ft (4.0m) 11s
Most Powerful 7AM (Sun 25th Jan)15ft (4.5m) 12s

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 61mm), heaviest during Thu morning. Warm (max 20°C on Fri morning, min 12°C on Tue night). Wind will be generally light.

Days 3-6 Weather Summary Heavy rain (total 27mm), heaviest during Fri night. Very mild (max 16°C on Mon morning, min 10°C on Fri night). Mainly fresh winds.

Wednesday
21
Thursday
22
Friday
23
Saturday
24
Sunday
25
Monday
26
Tue
27
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
1
0
0
1
4
3
4
4
4
2
3
1
3
5
!
!
!
3
4
4
2
Swell
Height Map
Wave Height (m) & direction (?)
0.9
E
0.8
S
0.8
S
2.2
ENE
3
ENE
3
E
3.5
ESE
2.2
E
1.8
E
1.6
SE
1.9
SSW
1.5
SSW
2.5
SSW
3
S
4
SSW
4
S
4
S
3.5
S
3
S
2.4
S
2.4
S
Period(s) (?)814148910111111107991313121211111010
Wave
Graph
(?)Metric surfscale
Energy kJ (?)1032612295281265169526281148741459356315115630905266426842762948213812221137
Wind
(km/h)
15
NNE
20
NE
20
NE
20
NE
10
E
20
SSW
15
SW
5
ENE
10
E
10
S
20
W
25
WSW
25
WSW
15
SSW
15
S
20
SW
15
SSW
15
S
5
W
5
E
20
ENE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
cross-
on
cross-
on
cross-
on
oncross-
off
cross-
off
ononcrossoffcross-
off
offcross-
off
crosscross-
off
cross-
off
crossoffoncross-
on
High Tide
/ height (m)
7:26AM
1.50
7:45PM
1.34
8:10AM
1.50
8:30PM
1.35
8:55AM
1.49
9:18PM
1.37
9:42AM
1.47
10:08PM
1.40
10:32AM
1.46
11:01PM
1.44
11:25AM
1.46
11:56PM
1.49
12:20PM
1.46
Low Tide
/ height (m)
1:08AM
0.22
1:46PM
0.24
1:53AM
0.21
2:31PM
0.23
2:40AM
0.20
3:16PM
0.21
3:29AM
0.20
4:02PM
0.19
4:20AM
0.20
4:50PM
0.18
5:14AM
0.20
5:41PM
0.16
6:11AM
0.19
6:34PM
0.14
Wednesday
21
Thursday
22
Friday
23
Saturday
24
Sunday
25
Monday
26
Tue
27
Sunrise-6:11--6:13--6:15--6:16--6:16--6:18--6:20-
Sunset--8:58--8:57--8:57--8:55--8:54--8:53--8:52
part cloud
light rain
light rain
heavy rain
heavy rain
heavy rain
rain showers
clear
thunderstorm
heavy rain
rain showers
light rain
light rain
cloud
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
Rain (mm)
-211526122-318423--------
Temp. °C141516171717162019151515131414141615141819
Feels °C (?)11121316181613201914111071110101312131616
  • 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

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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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