Surf Forecasts:
Mangamaunu surf forecast from 8 Jul 2026:
- Best quality surf: Friday 10 Jul, 6AM (local time) - 8ft (2.5m), 11s period, ESE swell with offshore winds.
- Most powerful swell: Friday 10 Jul, 12AM (local time) - 10ft (3.0m), 11s period, SE swell with 1,868 kJ wave energy.
- Next surfable swell (1★+): Friday 10 Jul, 6AM (local time) - 8ft (2.5m), 11s period with ESE 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 Friday (Jul 10) at 6AM. The primary swell is predicted to be 2.5m and 11s period with a secondary swell of 0.6m and 17s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Mangamaunu in the next 16 days are 3.0m 11s and forecast to arrive on Friday (Jul 10) at 12AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.1m 6s period and expected on Tuesday (Jul 14) at 12AM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Fri 10th Jul) | 8ft (2.5m) 11s |
| Best Surf | 6AM (Fri 10th Jul) | 8ft (2.5m) 11s |
| Most Powerful | 12AM (Fri 10th Jul) | 10ft (3.0m) 11s |
Table - best surf conditions forecast for Mangamaunu over the next 16 days.
Alright, this is Rusty talkin’. We’re dialed in on Mangamaunu, a real gem of a point break. Right now, the ocean is a bit of a mess, but we have got some serious action coming down the line. Hang tight.
The water temp is runnin’ about 52.7°F, which is pretty standard for this time of year, nothin’ wild there.
The next few days are a bit of a write-off, honestly. Wednesday the 8th and Thursday the 9th are a battle with strong cross-off winds and rain. The swell is solid, around 6.2ft to 8.2ft, but the wind is tearin’ it up. Friday the 10th morning, it cleans up a treat with a light offshore, but the swell is a pumped-up 8.2ft from the ESE – that’s expert territory and will be a handful. By Friday afternoon the conditions slip back a bit. Saturday the 11th morning looks magic with glassy conditions and a more manageable 4.9ft swell from the east. It’s clean, the wave energy is moderate (733), and that’s a good window for the advanced crew. After that, we hit a flat spell. From Sunday the 12th right through to Wednesday the 15th, it’s tiny, with weak energy readings (down to 31), and not worth paddling out for.
Now, here is where it gets interesting. From Thursday the 16th, a proper pulse of energy fills in. That morning sees 5.6ft, but it’s still a little messy. The real show kicks off on Saturday the 18th. We’ve got a beast of a swell hitting 13.1ft from the ESE with an offshore wind. The combined wave energy is massive (4506), but that size is only for the pros – this ain’t a beginner wave. It’s big, powerful, and the point will be pumping. Then Sunday the 19th, it eases to a still-chunky 11.5ft with a nice offshore wind. That’s a standout session for experienced surfers, with excellent conditions and a solid energy (4601).
The best bet? Look at Tuesday, July 22nd and Wednesday, July 23rd. That’s when we get a perfect blend of big, clean swell and glassy conditions. Tuesday the 22nd morning has a 9.8ft ESE groundswell with a period of 12 seconds and a clean offshore. Wednesday the 23rd morning is absolute glass – no wind at all, 7.5ft from the ESE, and a long 11-second period. That long-period swell loves a point break, so the shape should be world-class. This is a long-range call, so keep an eye on it, but it looks like the window of the whole forecast.
Short Range ForecastModerate rain (total 11mm), heaviest on Wed night. Mild temperatures (max 9°C on Wed night, min 4°C on Thu night). Winds decreasing (fresh winds from the SSW on Wed night, calm by Sat morning). | Days 5-7 Weather SummaryMostly dry. Very mild (max 15°C on Tue morning, min 6°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Thursday 9 | Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | Wed 15 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | E 10 | ESE 10 | ESE 11 | SE 11 | E 11 | E 10 | E 10 | E 10 | ESE 10 | S 15 | S 13 | ESE 9 | ESE 9 | SSW 10 | S 9 | NE 6 | ENE 7 | ENE 8 | ENE 7 | E 12 | E 11 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1004 | 1510 | 1714 | 1868 | 1144 | 800 | 510 | 377 | 335 | 272 | 163 | 113 | 64 | 30 | 25 | 82 | 57 | 81 | 21 | 25 | 22 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross-off | cross-off | off | cross-off | off | glassy | glassy | cross-off | cross | cross-on | cross-off | cross-off | cross-off | cross | cross-off | glassy | cross-off | glassy | cross-off |
High Tide | 11:10PM1.41m | 11:40AM1.44m | 00:03AM1.43m | 12:35PM1.52m | 00:59AM1.46m | 1:31PM1.60m | 1:55AM1.50m | 2:28PM1.68m | 2:53AM1.53m | 3:25PM1.74m | 3:50AM1.57m | 4:22PM1.79m | 4:47AM1.59m | 5:19PM1.80m | |||||||
Low Tide | 5:25AM0.21m | 5:53PM0.23m | 6:15AM0.17m | 6:49PM0.19m | 7:09AM0.13m | 7:48PM0.14m | 8:05AM0.08m | 8:47PM0.10m | 9:02AM0.03m | 9:46PM0.06m | 10:00AM-0.01m | 10:45PM0.02m | 10:58AM-0.04m | ||||||||
 |  |  |  |  | |  | | | | | | | | | | | | | |  | |
 | — | 7:52 | — | — | 7:52 | — | — | 7:52 | — | — | 7:50 | — | — | 7:50 | — | — | 7:50 | — | — | 7:50 | — |
 | — | — | 5:07 | — | — | 5:07 | — | — | 5:07 | — | — | 5:08 | — | — | 5:09 | — | — | 5:10 | — | — | 5:12 |
mm | 8 | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 9 | 8 | 7 | 5 | 8 | 8 | 6 | 8 | 8 | 6 | 10 | 11 | 9 | 13 | 14 | 11 | 15 | 15 | 13 | 13 | 12 |
Feels °C | 3 | 1 | 0 | -1 | 3 | 3 | 2 | 5 | 6 | 3 | 7 | 8 | 6 | 10 | 12 | 7 | 14 | 14 | 10 | 11 | 9 |
Swell 1 Height (m) Direction Period (s) | E 10 | ESE 10 | ESE 11 | SE 11 | E 11 | E 10 | E 10 | E 10 | ESE 10 | E 10 | ESE 9 | ESE 9 | ESE 9 | NE 6 | S 9 | NE 6 | ENE 7 | ENE 8 | ENE 7 | E 12 | ENE 6 |
| kJ | 1004 | 1510 | 1714 | 1868 | 1144 | 800 | 510 | 377 | 335 | 235 | 141 | 113 | 64 | 28 | 25 | 82 | 57 | 81 | 21 | 25 | 14 |
Swell 2 Height (m) Direction Period (s) | SSW 16 | S 22 | S 20 | S 14 | SSW 16 | S 11 | S 10 | S 9 | S 16 | S 15 | S 13 | S 11 | S 10 | ESE 9 | ESE 8 | ESE 8 | NNE 6 | NNE 6 | NNE 5 | ENE 6 | E 11 |
| kJ | 85 | 9 | 30 | 100 | 259 | 61 | 47 | 76 | 251 | 272 | 163 | 86 | 51 | 25 | 24 | 14 | 14 | 6 | 3 | 4 | 22 |
Swell 3 Height (m) Direction Period (s) | — | S 22 | — | SSW 17 | — | SSW 16 | SSW 15 | S 18 | S 9 | — | — | SSW 15 | NE 5 | SSW 10 | SSW 13 | S 9 | S 8 | S 18 | E 10 | ESE 6 | E 14 |
| kJ | — | 9 | — | 100 | — | 81 | 47 | 230 | 39 | — | — | 43 | 8 | 30 | 18 | 6 | 1 | 6 | 8 | 4 | 16 |
Wind waves Height (m) Direction Period (s) | S 7 | S 8 | S 7 | S 6 | SSW 6 | SSW 6 | S 5 | — | — | — | NNE 3 | NE 4 | NNE 5 | — | NNE 6 | NNE 6 | — | — | — | — | — |
| kJ | 585 | 690 | 578 | 345 | 68 | 86 | 37 | — | — | — | 1 | 8 | 42 | — | 130 | 318 | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 157 | 157 | 135 | 157 | 73 | 0 | 30 | 0 | 0 | 100 | 0 | 4 | 13 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 |
Best forecast wave conditions in Kaikoura and Marlborough | |||||||||||||||||||||
Best forecast wave conditions in New Zealand | |||||||||||||||||||||
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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 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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