Nanarup Beach Surf Forecast and Surf Report

G’day, I’m Rusty. We’ve got a hefty 16-day forecast ahead for Nanarup Beach, and it’s a bit of a mixed bag. There’s a decent run of clean, solid swell early on, but the second week turns into a real battle with the wind. Let’s break it down.

The best bet of the whole stretch is Tuesday morning, the 18th. We’re looking at a clean 5ft swell from the SSW with a very long 16-second period – proper groundswell energy. The combined energy is strong at 1633, so there’s plenty of push. Water temp is sitting at 64°, which is a touch warmer than normal for this time of year. Wind is a light 6 mph cross-off, keeping things tidy. This is excellent for experienced surfers – the size and power mean it’s not a beginner wave, but for those with a bit of paddle fitness, the long-period gaps between sets will help you get out back. The break is fairly exposed to the swell, so it’ll be handling that SSW energy nicely. Crowds are sometimes an issue here, so you might find a few others in the water.

Tuesday afternoon hangs in there with a similar 5ft swell and light cross-off wind, still clean and very good. Wednesday the 19th sees the swell bump up to 6ft, then 7ft in the afternoon, but the wind picks up to a moderate 12 mph cross-off. It’s still clean and the energy is strong (2493 in the arvo), but the quality drops to marginal – probably a bit of lumpy water from the breeze.

Thursday the 20th keeps that solid 7ft to 8ft range, with a gentle cross-off wind on the morning. The afternoon really stands out again – 8ft from the SSW, 16-second period, and combined energy of 2620. The wind is a gentle 9 mph cross-off, and it’s described as excellent for experienced surfers. That’s your second standout: Thursday afternoon. Bigger, powerful, and still clean enough.

Now Friday the 21st is a beauty for the early session. Glassy conditions with a slight air and clear skies, 7ft swell from the SSW at 15 seconds, and a combined energy of 2075. That is the premium session of the whole forecast – flat calm, big groundswell, and no wind. Get in the water early. The afternoon turns cross-on with a light breeze and drops to marginal.

Saturday the 22nd repeats the glassy morning trick – 6ft swell, glassy, clear skies, excellent for experienced surfers. The arvo goes cross-on and gets choppy, so again, morning is king.

Sunday the 23rd is a write-off. Swell drops to 4ft, wind pumps up to 16 mph cross-shore, and it’s a messy cross-chop. Energy drops to around 823-907 – moderate at best. Not worth paddling out.

Monday the 24th offers a freshener. Clean 4ft to 4ft swell with a light offshore wind from the NNW. The morning is clean, and the afternoon gets a gentle offshore with very good surf conditions. It’s smaller, but for a fun, clean session it’s solid.

Now, from Tuesday the 25th onward, it gets rough. Tuesday morning sees 8ft swell but with 22 mph cross-off wind and rain – poor conditions, raw and blown out. Tuesday afternoon jumps to 10ft with a 25 mph cross-off, still clean in a weird way but messy and marginal. That’s big, expert-only if you’re crazy enough.

Wednesday the 26th is cross-shore wind at 19 mph, 10ft swell, fresh cross-chop – ugly. Thursday the 27th and Friday the 28th are all poor surf with strong onshore winds and tiny, messy waves. There’s a gap of several days here with no worthwhile surf.

Saturday the 29th offers a slight recovery – 5ft swell but still cross-on and choppy. Marginal at best.

Sunday the 30th gives us a glimmer. Clean 4ft swell with a gentle cross-off breeze, very good surf conditions, and combined energy of 673. That’s a small, clean wave to finish the month on.

Monday the 31st is back to moderate cross-shore and chop, then Tuesday the 1st of September has a nice surprise: clean, 4ft swell with a moderate offshore wind from the NNW, very good conditions. The energy is solid at 821. Wednesday the 2nd of September follows with another clean, offshore morning – 3ft swell, gentle offshore, very good surf. That’s a small but clean end to the run.

All in all, the standout is Friday the 21st morning – glassy, 7ft SSW groundswell, and full power. Thursday the 20th afternoon is the next best. After that, pick the morning windows when the wind lays down. The second week is mostly gnarly wind and big, messy swell – more of a kite-surfing setup than paddle surfing on those big cross-shore days.

Stay safe, read the forecast, and get on those early sessions.

Rusty.

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