Mangamaunu Surf Forecast and Surf Report

Alright, let me break this down for you. This is a look at Mangamaunu, and honestly, it’s a bit of a mixed bag right now. The next couple of days are a write-off for any decent surf, but hold tight, because the back half of the week and beyond is where the magic happens. The water temp is sitting right around 51°F, which is bang on average for this time of year, so nothing weird going on there.

The first real glimmer of hope comes on Wednesday the 19th. The morning is looking absolutely pumping. We’re talking a solid 12ft of south swell with a long 14-second period – that's proper groundswell energy. The wind is light offshore from the west, and the combined swell energy is cranking at (9185). This is expert territory for sure, over 8ft, so leave the foamie at home. The afternoon holds onto the size, dropping a bit to 10ft, but still with that long 14-second pulse, though the wind goes a bit cross-off. Still, Wednesday morning is the standout, the one to circle on the calendar.

Thursday the 20th is a completely different story. The swell drops right off to a tiny 4ft, but check this – in the morning we’ve got a perfect glass-off from the northeast. Zero wind. Clean as a whistle. The period is a short 8 seconds though, so it’ll be a bit weak and crumbly, with combined energy only at (349). Not exactly a power session, but for a super clean, small-wave cruiser, it’s a solid option.

Friday the 21st is similar. Swell is small again, around 4ft to 4ft, but the wind is glassy or near glassy all day. The period stretches out to a very long 15 seconds, which is lovely for that paddle-out between sets. It’s a groundswell, so at a point break like Mangamaunu it should line up nicely. Still, with energy around (552) to (787), it’s more about finesse than power.

Saturday the 22nd and Sunday the 23rd are pretty ordinary. The swell just bottoms out. There are waves, but they are small and weak.

You’ll want to look at Monday the 24th again. The morning brings back some energy with a 4ft south swell at 15 seconds and glassy conditions. The afternoon bumps up to 5ft with a 16-second period and still glassy – that is excellent. Combined energy for the afternoon hits (1126), which is a moderate but punchy pulse. This is a top pick for experienced surfers wanting clean, lined-up waves without the giant size. Tuesday the 25th keeps the trend going with a sneaky jump up to 8ft in the afternoon and that long 16-second period, giving us (3631) energy. A bit big, but still very clean.

Beyond that, through the end of August and into the first of September, the swell slowly winds down. There are more clean mornings, but the size drops back under 5ft. It becomes a cruisy, small-wave run with offshore or glassy winds. Not a standout, but consistent if you just want to get wet.

If you're a beginner, steer clear of Wednesday the 19th and Tuesday the 25th afternoon – that’s too much water moving. For the experienced crew, Wednesday morning is the absolute best on offer, with Monday the 24th as a close, clean second.

Rusty.

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