Nanwan Beach (South Bay) Surf Forecast and Surf Report

Alright, let’s get into it. This is Rusty, checking in from the South Bay region.

Right off the bat, the next few days are messy. We've got a big, powerful groundswell rolling in, but the wind and weather are all over the place, which is really putting a lid on quality. The first real chance to get out is Tuesday the 25th, but honestly, it's not great. Tuesday morning has a strong 7ft east swell with a very long 18-second period, packing some serious energy (3419), but a cross-shore wind and rain make it a bit of a battle. Tuesday afternoon cleans up a bit with a cross-offshore breeze and a slightly bigger 8ft east swell, but there's still a risk of thunderstorms hanging around.

Wednesday the 26th and Thursday the 27th see the swell shift to the southwest and drop in period to a short 8-9 seconds. The energy drops right off (around 660-770), which means the waves will be weaker and more disorganised. Plus, the wind howls at 22-25 mph. It's not great for paddling. Honestly, with that much wind and a beach-reef setup, this might look more interesting for kiteboarding than paddle surfing.

Friday the 28th stays in that same rough, choppy groove. The weekend offers a glimmer of hope. By Sunday the 30th, the wind settles and we see a cleaner 6ft southwest swell with a 10-second period. The wave energy is still moderate (627), but the morning has a gentle offshore breeze, so there should be some clean, fun lines—a decent option for an intermediate surfer. Be mindful, though, Nanwan Beach can get busy, so expect some company.

Now, for the standout. Look ahead to Wednesday the 2nd of September. The morning is a write-off, but the afternoon turns on. We get a really fun 4ft east swell, but the period jumps to a very long 12 seconds, and the energy is a solid 716. The wind goes light cross-offshore. This combo is going to produce some clean, well-shaped waves. It’s not huge, but the quality will be there. This is the best bet of the whole outlook.

Then, just when you think it's all over, we get a beautiful run from the 4th to the 5th of September. A 3ft to 4ft west-southwest groundswell, mostly 10-second period, with glassy conditions and calm winds. This is a proper dawn-patrol set-up—clean, tiny, but absolutely perfect for logging or a longboard. For the experienced surfer, Monday the 7th of September morning sees a sudden jump back to a 7ft southwest swell, with glassy wind again. That one might be a bit too much for beginners, but for anyone with some experience, it’s a serious contender with punchy waves.

The water temp sits at a balmy 84°, which is bang on average for this time of year, so you can stay out in a shorty or just boardshorts.

All in all, this forecast has a rough start, a good middle section, and a very promising long-range finish. The long-range stuff looks great, but as always, keep an eye on the forecasts as we get closer.

- Rusty

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