
Surf Forecasts:
Mangamaunu surf forecast from 26 Jul 2026:
- Best quality surf: Saturday 1 Aug, 3PM (local time) - 13ft (4.0m), 9s period, S swell with cross-offshore winds.
- Most powerful swell: Sunday 2 Aug, 3PM (local time) - 20ft (6.0m), 14s period, S swell with 12,922 kJ wave energy.
- Next surfable swell (1★+): Monday 27 Jul, 9AM (local time) - 3.5ft (1.1m), 12s period with E 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 Monday (Jul 27) at 9AM. The primary swell is predicted to be 1.1m and 12s period with a secondary swell of 0.8m and 6s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Mangamaunu in the next 16 days are 6.0m 14s and forecast to arrive on Sunday (Aug 02) at 3PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.2m 7s period and expected on Friday (Jul 31) at 12AM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Mon 27th Jul) | 3.5ft (1.1m) 12s |
| Best Surf | 3PM (Sat 1st Aug) | 13ft (4.0m) 9s |
| Most Powerful | 3PM (Sun 2nd Aug) | 20ft (6.0m) 14s |
Table - best surf conditions forecast for Mangamaunu over the next 16 days.
The Lowdown
Alright, let’s get into it. We’ve got one spot on the menu for the next couple of weeks, and it’s a cracker.
We’re looking at Mangamaunu, a classic advanced point break that’s very consistent and exposed to the swell. The best direction for this place is from the southeast, so we’ll be keeping an eye on that.
The water temperature is sitting about average for this time of year, so nothing too wild there.
First up, the action kicks off on Monday, July 27th. We’ve got a clean 3.6 ft to 4.3 ft easterly swell rolling in with a solid 12-13 second period. Winds are light and offshore or glassy. This is a proper groundswell with moderate energy, and it’s going to be some very clean, fun surf. It’s not huge, but the quality is there.
Tuesday, July 28th is where things start to get interesting. The swell bumps up to 5.9 ft from the ESE, still with that 13-second period, and the winds are glassy in the morning and light offshore. The combined energy jumps significantly, and the forecast says it’s excellent surf for experienced surfers. The waves will have more push and shape, and with those clean conditions, this is a standout morning. The afternoon is just as good with glassy conditions.
Wednesday, July 29th holds solid at 4.6 ft to 4.9 ft, still clean, still with that long-period groundswell energy. The wind starts to go a little cross-off in the morning but goes glassy again in the afternoon. Still very good surf.
Thursday, July 30th, and Friday, July 31st, see the swell slowly dropping. Thursday morning has 3.6 ft with a light cross-off, and the energy drops. Friday gets smaller, down to 2.3 ft to 2.6 ft, and the wind picks up on Friday afternoon to a moderate breeze. The energy gets weak. It’s surfable, but pretty ordinary.
Now, Saturday, August 1st, and Sunday, August 2nd, are a different story entirely. A massive south-southwest swell hits, absolutely jacking up to 9.8 ft on Saturday morning, then 13.1 ft in the afternoon, and then peaking at 14.8 ft to 19.7 ft on Sunday. The combined energy is off the charts – into the thousands and then the tens of thousands. This is a monster. The problem is, it’s way too big for this break. The period is short on Saturday (8-9 seconds) but gets long again on Sunday (13-14 seconds). The wind is a strong cross-off, but the size makes it a serious danger zone. This is expert-only if you’re even thinking about it, but honestly, with that much power and size, it’s probably more interesting for the kite surfers than paddle surfers. The forecast itself says it’s too big for this break.
After that massive pulse, Monday, August 3rd, brings a much more manageable 8.2 ft from the SSE with a 12-second period. The wind is offshore in the morning and dead glassy in the afternoon. That’s a solid, powerful groundswell with strong energy, and it’s excellent for experienced surfers. This is another true standout. The conditions are perfect.
Tuesday, August 4th, still has a solid 7.2 ft to 7.5 ft from the SE with clean winds and glassy afternoons. The energy is still strong, so it’s still very good.
Wednesday, August 5th, drops a little to 5.2 ft to 5.6 ft from the SE with a 13-second period. Morning is clean, but the afternoon gets a cross-on wind that messes with the quality a bit.
Thursday, August 6th, fades to small, weak surf, 2.3 ft to 3.0 ft with low energy. Not worth getting too excited about.
Then, Friday, August 7th, throws in a sneaky good one. We get a 7.9 ft to 8.2 ft pulse from the SE, but the period drops to 8 seconds. That’s a shorter period wind swell, but it’s glassy and clean, and the energy is still decent. It’ll be fun, but it won’t have the same grunt as the longer period stuff.
Saturday, August 8th, is smaller and shorter period, fading out.
Sunday, August 9th, brings another solid pulse, 7.5 ft to 7.9 ft from the east with a clean 8-second period. Glassy conditions all day, with strong energy. It’s a bit shorter period, but the size and clean conditions make it a good option.
Monday, August 10th, is a big one. We get 9.8 ft from the east
Short Range ForecastMostly dry. Very mild (max 13°C on Wed morning, min 4°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 7mm), mostly falling on Fri night. Very mild (max 15°C on Thu morning, min 4°C on Sat morning). Winds increasing (calm on Thu morning, fresh winds from the SW by Sat afternoon). | ||||||||||||||||||
Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | ||||||||||||||
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) | E 13 | E 12 | ESE 13 | ESE 13 | ESE 13 | ESE 13 | ESE 13 | ESE 13 | ESE 12 | ESE 12 | ESE 12 | E 12 | ESE 11 | E 11 | E 12 | SSW 13 | SSW 8 | S 9 | S 11 |
Wave Graph | |||||||||||||||||||
225 | 377 | 590 | 865 | 1044 | 1077 | 946 | 703 | 567 | 439 | 361 | 274 | 170 | 154 | 132 | 2578 | 1202 | 2532 | 3056 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | glassy | cross-off | glassy | glassy | cross | cross-off | glassy | cross-off | cross-off | glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 2:48AM1.32m | 3:14PM1.46m | 3:32AM1.32m | 3:58PM1.47m | 4:16AM1.33m | 4:42PM1.48m | 4:59AM1.33m | 5:25PM1.48m | 5:43AM1.33m | 6:08PM1.47m | 6:27AM1.33m | 6:51PM1.46m | |||||||
Low Tide | 8:53AM0.30m | 9:31PM0.33m | 9:37AM0.28m | 10:16PM0.31m | 10:22AM0.26m | 11:00PM0.29m | 11:06AM0.25m | 11:44PM0.28m | 11:50AM0.24m | 00:28AM0.26m | 12:35PM0.23m | 1:11AM0.25m | |||||||
— | 7:39 | — | — | 7:39 | — | — | 7:37 | — | — | 7:37 | — | — | 7:35 | — | — | 7:35 | — | — | |
— | — | 5:22 | — | — | 5:22 | — | — | 5:23 | — | — | 5:24 | — | — | 5:25 | — | — | 5:27 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 4 | 1 | 2 | 11 |
Temp °C | 5 | 9 | 9 | 7 | 11 | 12 | 9 | 13 | 13 | 11 | 15 | 15 | 12 | 13 | 12 | 9 | 4 | 5 | 5 |
Feels °C | 1 | 6 | 6 | 3 | 8 | 9 | 5 | 11 | 11 | 8 | 13 | 13 | 9 | 9 | 7 | 5 | -3 | -3 | -5 |
Swell 1 Height (m) Direction Period (s) | E 13 | E 12 | ESE 13 | ESE 13 | ESE 13 | ESE 13 | ESE 13 | ESE 13 | ESE 12 | ESE 12 | ESE 12 | E 12 | NNE 7 | E 11 | E 12 | S 13 | SE 16 | SE 15 | SE 14 |
215 | 377 | 590 | 865 | 1044 | 1077 | 946 | 703 | 567 | 439 | 361 | 274 | 99 | 154 | 132 | 1659 | 310 | 284 | 293 | |
Swell 2 Height (m) Direction Period (s) | ESE 13 | SSE 6 | SSE 6 | SSW 10 | SSW 9 | SSW 8 | SSW 10 | NE 4 | NE 6 | S 15 | SSW 15 | SSW 14 | ESE 11 | NE 6 | ENE 8 | E 11 | E 11 | E 11 | E 12 |
225 | 47 | 27 | 35 | 26 | 12 | 20 | 6 | 25 | 113 | 71 | 63 | 170 | 9 | 12 | 86 | 60 | 37 | 11 | |
Swell 3 Height (m) Direction Period (s) | SSE 7 | SE 13 | S 13 | — | — | SSW 12 | — | SSW 15 | SSW 14 | NE 6 | NE 7 | SSW 14 | SSW 15 | NNE 6 | SE 15 | SE 14 | E 18 | NE 17 | E 10 |
51 | 85 | 87 | — | — | 14 | — | 43 | 40 | 13 | 12 | 104 | 42 | 6 | 60 | 73 | 6 | 12 | 8 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | NNE 4 | NNE 6 | — | NNE 6 | NNE 6 | N 7 | — | SSW 5 | SSW 13 | SSW 8 | S 9 | S 11 |
— | — | — | — | — | — | — | 31 | 108 | — | 66 | 64 | 494 | — | 133 | 2578 | 1202 | 2532 | 3056 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 23 | 135 | 135 | 157 |
Best forecast wave conditions in Kaikoura and Marlborough | |||||||||||||||||||
Best forecast wave conditions in New Zealand | |||||||||||||||||||
Header Global | |||||||||||||||||||
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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.










