Nanwan Beach (South Bay) Surf Forecast and Surf Report

Alright, this is Rusty comin’ at ya from the south side of the island. We’ve got a bit of a wild rollercoaster ahead over the next two and a bit weeks at Nanwan Beach (South Bay). The water temp is sittin’ about average for this time of year, nothing too out of whack.

We start off on Wednesday, July 8th, with a bit of a tricky one. There’s energy in the water – a solid 6ft to 7ft of ESE to E swell pushing in with a very long 16 to 17-second period. That’s some serious groundswell, and with that long period, it’s gonna be lining up nicely. But the wind is hangin’ in there as a cross-off from the WNW to NW. It’ll be clean, but the report says the tide is gonna make things marginal. Honestly, it’s a watch-and-wait kind of day, not a standout.

Thursday, July 9th, is where things get *intense*. The swell pumps up quick – we’re talkin’ 12ft to 13ft of E swell with that same long, powerful 17-second period. The combined wave energy is massive, clockin’ in at a whopping 7121 to 8762 (very strong). Wind ticks around to the NNW and goes offshore, especially Thursday afternoon. The sets are gonna be huge and clean with that glassy feel. But here’s the hard truth: this is only for the experts. At over 8ft, and pushin’ 13ft, it’s way too big for anyone but the best. This is a big-wave day, and if you’re not one of the heavy hitters, stay on the beach and watch the show.

Friday, July 10th, it gets even bigger. We’re lookin’ at 18ft of E swell with a 19-second period on Friday morning. The energy is off the charts at 22856 (extreme). But the wind is a fresh to strong cross-off. The waves will be clean, but it’s just colossal. Again, experts only. Friday afternoon, the wind shifts onshore with a risk of thunderstorms, making it a bit of a mess for anyone tryin’ to paddle.

From Saturday, July 11th, through the end of the following week, it all goes a bit pear-shaped. A severe gale rips through on Saturday with 47 mph winds out of the WSW, bringin’ big, unruly, cross-shore waves. This is kite-surfing territory, not paddle surfing. The rest of that week is a long stretch of poor to marginal conditions with onshore and cross-shore winds, lumpy seas, and dropping swell. There’s a solid gap of rough conditions from July 11th right through until July 20th with only a couple of brief, marginal windows.

Now, if you’ve got the patience, there’s a little gem hidden in the second week. Mark your calendars for Tuesday, July 21st. The swell drops down to a much more manageable 7ft from the SW with a 10-second period. The combined energy is a modest 872 to 951 (moderate). But the wind? It’s a light offshore from the NW in the morning and a gentle cross-off later. It’s forecast to be *very good* conditions. It won’t be huge, but it’ll be clean, cruisy, and fun for the intermediate crew. This is the one standout in the whole 16-day window – a real treat after all that chaos.

So, there you have it. A massive, expert-only swell hits first, a long stretch of nasty weather, and then a single, beautiful day of clean surf on July 21st. Get out there if you can that Tuesday.

Rusty.

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