Surf Forecasts:
Mangamaunu surf forecast from 22 Sep 2026:
- Best quality surf: Sunday 27 Sep, 10PM (local time) - 7ft (2.1m), 8s period, S swell with offshore winds.
- Most powerful swell: Wednesday 30 Sep, 7AM (local time) - 8ft (2.5m), 15s period, S swell with 2,686 kJ wave energy.
- Next surfable swell (1★+): Wednesday 23 Sep, 6AM (local time) - 5.5ft (1.7m), 8s period with SSW 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 Wednesday (Sep 23) at 6AM. The primary swell is predicted to be 1.7m and 8s period with a secondary swell of 0.6m and 16s. Another secondary swell of 0.3m and 12s is also forecast. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Mangamaunu in the next 16 days are 2.5m 15s and forecast to arrive on Wednesday (Sep 30) at 7AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.4m 7s period and expected on Sunday (Sep 27) at 10AM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Wed 23rd Sep) | 5.5ft (1.7m) 8s |
| Best Surf | 10PM (Sun 27th Sep) | 7ft (2.1m) 8s |
| Most Powerful | 7AM (Wed 30th Sep) | 8ft (2.5m) 15s |
Table - best surf conditions forecast for Mangamaunu over the next 16 days.
Short Range ForecastLight rain (total 6mm), mostly falling on Tue night. Very mild (max 12°C on Thu afternoon, min 6°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 12mm), heaviest on Sun morning. Very mild (max 17°C on Sat afternoon, min 5°C on Sun night). Winds decreasing (strong winds from the SSW on Sun morning, calm by Mon afternoon). | ||||||||||||||||||
Wednesday 23 | Thursday 24 | Friday 25 | Saturday 26 | Sunday 27 | Monday 28 | ||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||
Wave Height (m) Direction Period (s) | S 16 | SSW 8 | S 9 | S 8 | S 9 | S 9 | S 8 | S 14 | S 14 | S 13 | ESE 13 | ESE 13 | ESE 12 | ESE 12 | SSW 7 | S 8 | S 12 | S 13 | S 14 |
Wave Graph  | |||||||||||||||||||
 kJ | 832 | 497 | 463 | 418 | 276 | 230 | 143 | 150 | 320 | 173 | 137 | 133 | 129 | 93 | 290 | 338 | 759 | 986 | 971 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | off | glassy | on | off | cross-off | on | cross-on | cross-on | glassy | cross-off | cross-off | cross-off | off | glassy | cross-on | cross-off |
High Tide | 1:38AM1.30m | 2:02PM1.42m | 2:22AM1.32m | 2:46PM1.44m | 3:06AM1.35m | 3:30PM1.45m | 3:51AM1.38m | 4:15PM1.47m | 4:37AM1.43m | 5:01PM1.48m | 5:25AM1.48m | 5:49PM1.48m | |||||||
Low Tide | 7:41AM0.30m | 8:16PM0.30m | 8:26AM0.27m | 8:59PM0.27m | 9:11AM0.23m | 9:43PM0.24m | 9:59AM0.20m | 10:28PM0.21m | 10:48AM0.18m | 11:15PM0.18m | 11:39AM0.16m | 00:03AM0.16m | |||||||
 |  | |  |  | |  | |  | | | | |  |  | | | | | |
 | — | 6:13 | — | — | 6:11 | — | — | 6:09 | — | — | 6:07 | — | — | 7:05 | — | — | 6:03 | — | — |
 | — | — | 6:22 | — | — | 6:22 | — | — | 6:23 | — | — | 6:24 | — | — | 7:25 | — | — | 6:27 | — |
mm | 3 | 1 | 2 | — | — | — | — | — | — | — | — | — | — | 9 | 3 | — | — | — | — |
Temp °C | 10 | 6 | 7 | 6 | 11 | 12 | 10 | 11 | 11 | 10 | 16 | 17 | 15 | 15 | 6 | 6 | 12 | 12 | 10 |
Feels °C | 6 | 0 | 0 | 2 | 7 | 8 | 7 | 8 | 8 | 7 | 13 | 15 | 13 | 7 | -1 | 2 | 9 | 9 | 7 |
Swell 1 Height (m) Direction Period (s) | SE 12 | S 15 | S 15 | S 8 | S 9 | S 9 | S 8 | S 8 | S 14 | S 13 | ESE 13 | S 11 | ESE 12 | NNE 7 | ESE 12 | S 8 | S 12 | S 13 | S 14 |
| kJ | 22 | 233 | 159 | 228 | 276 | 230 | 143 | 90 | 320 | 173 | 137 | 112 | 129 | 138 | 81 | 338 | 759 | 986 | 971 |
Swell 2 Height (m) Direction Period (s) | E 10 | SE 12 | SE 11 | S 15 | SSW 15 | SSW 15 | S 15 | S 14 | ESE 14 | ESE 12 | S 11 | ESE 13 | S 10 | ESE 12 | ESE 15 | ESE 13 | ESE 13 | ESE 13 | ESE 12 |
| kJ | 7 | 21 | 19 | 118 | 77 | 46 | 118 | 150 | 118 | 81 | 85 | 133 | 69 | 93 | 84 | 154 | 147 | 147 | 103 |
Swell 3 Height (m) Direction Period (s) | — | E 10 | E 9 | ESE 11 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 15 | ESE 15 | NE 3 | SE 7 | NE 6 | S 10 | NE 6 | S 14 | — | — | — |
| kJ | — | 7 | 7 | 22 | 21 | 10 | 10 | 10 | 44 | 71 | 2 | 2 | 19 | 44 | 9 | 16 | — | — | — |
Wind waves Height (m) Direction Period (s) | S 16 | SSW 8 | S 9 | S 8 | — | — | — | — | — | NNE 2 | NE 3 | NE 4 | NNE 6 | NNE 7 | SSW 7 | — | — | — | — |
| kJ | 832 | 497 | 463 | 418 | — | — | — | — | — | 1 | 6 | 21 | 69 | 579 | 290 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 136 | 30 | 161 | 0 | 0 | 13 | 0 | 0 | 136 | 13 | 13 | 0 | 0 | 23 | 73 | 0 | 0 | 23 | 0 |
Best forecast wave conditions in Kaikoura and Marlborough | |||||||||||||||||||
Best forecast wave conditions in New Zealand | |||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Mangamaunu surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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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