Tengan Surf Forecast and Surf Report

Alright, let’s get real about Tengan. It’s been a rough run, and honestly, looking at the next 16 days, there’s hardly a moment where I’d paddle out with any real hope. This reef break takes a northeast swell best, but the wind just won’t play ball. The water’s sitting at 83°, which is pretty much spot on for this time of year — nothing unusual there.

We kick things off from August 28th, and straight away it’s a mess. Cross-onshore winds from the southeast at 19 mph are making a lumpy, choppy mess out of a weak 5ft swell with a short, crumbly period of 7 seconds. The combined energy is only 170 — weak. Not worth a second look. This trend carries right through the weekend and into the start of September. On the 31st, we see the swell jumping to 8ft to 10ft, but it’s accompanied by a risk of thunderstorms and howling onshore winds around 28 mph. Combined energy hits 1342, which is strong, but it’s just a blown-out, dangerous wall of whitewater. Only for the kamikaze crew, if even them.

We get a slight teaser on September 3rd — Thursday afternoon sees a shift to a light offshore wind from the west-southwest at 16 mph. The swell is tiny, barely 3ft, and the period is a modest 9 seconds. The wave comment finally says “surfable waves but very ordinary conditions” with a score that’s basically a 1 out of 10. It’s clean-ish, but there’s just no power (energy only 171). Honestly, you’d be scratching for a wave.

Now here’s the only real standout in the whole 16-day window: Friday morning, September 4th. The wind drops to glassy — literally 3 mph from the west-southwest — and the water goes flat calm. Swell sits at 4ft from the east-southeast with a 10-second period, giving a combined energy of 306. That’s moderate energy, and with glassy conditions, Tengan might actually have a few clean, lined-up waves for a few hours. The direction is a little off the optimum, but when it’s that clean, you take what you can get. This is the morning to try, but be warned: the afternoon goes light cross-onshore and marginal again.

After that, it’s back to the usual story. From September 5th onward, we’ve got a solid week of onshore winds, thunderstorms, and messy conditions. The 6th and 7th see swell pumping between 7ft and 8ft with strong energy (over 1000), but it’s all cross-onshore and ugly. Then we fade into a long lull from the 8th through to the 11th — tiny, weak swells under 3ft, short periods, and still messy wind. September 12th throws a curveball: a very long period groundswell of 18 seconds from the east, hitting 5ft to 6ft, with combined energy through the roof at 2345. That’s a lot of power. But with near gale to severe gale onshore winds (37 to 50 mph), it’s completely unsurfable. That much energy and that much wind just turns it into a washing machine. For a reef break like Tengan, it could be dangerous as hell.

Overall, it’s a tough stretch. There’s a big gap of zero recommendations from the 28th all the way to the 3rd, then a single clean window on the morning of the 4th, then another gap of poor conditions for the rest of the run. If you’re set on Tengan, keep your eyes on that Friday the 4th morning, and don’t bother with the rest.

Rusty.

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