Whale Rock Surf Forecast and Surf Report

G’day, Rusty here. Let’s have a proper look at what’s on the table for Whale Rock. It’s a reef setup, so when it’s on, it can really hold a swell, but it’s an inconsistent wave – don’t expect it to fire around the clock. Mostly, this forecast shows more marginal or poor conditions than clean, rideable ones. Current water temp is about 70°, which is pretty normal for this time of year, just a touch warmer than average.

The first real chance you’ll get to paddle out is Tuesday morning, 18 August. It’s not a standout, but it’s the first window. You’re looking at a 4 ft easterly swell, period around 10 seconds, with a cross-off breeze from the SW. Swell energy is moderate at 321. It’s clean, but the swell direction isn’t ideal for the break – it wants S, so this is more of a sneaky session than a solid go.

Wednesday morning, 19 August, brings a 4 ft SSW swell with a period of 13 seconds. Winds are NE and cross, creating a messy cross-chop. Energy’s moderate at 560. The swell direction matches the optimum, but the conditions aren’t great – a bit of a mixed bag.

Now, Thursday 20 August is when things get punchy. The morning shows a 8 ft SW swell, period of 8 seconds, with a gentle cross breeze. The combined energy is strong at 1179. This is solid surf, but the short period makes it a bit dumpy, and it’s prone to closing out. With the reef bottom, it might still offer some barrels for the advanced crew, but crowds are possible. For beginners, it’s too big. The afternoon jumps up to a 6 ft SSW swell, 16-second period – that’s proper groundswell. Energy is very strong at 1696. Winds switch to a light cross-on. Long-period swells can break a bit straight at reefs too, but the size and power are there. This afternoon window on the 20th is one of the better options across the whole period.

Friday 21 August and Saturday 22 August look poor. Friday’s got fresh cross-on winds making it lumpy, and Saturday is a write-off: 28 mph winds and a 10 ft messy SS swell (energy 1282) – that’s expert-only and likely a kite-surfing circus.

Sunday morning, 23 August, is your absolute standout. An 12 ft SSW groundswell with a 15-second period, but crucially, the wind is cross-off from the SSW at 16 mph, and the conditions are described as clean. Combined energy is massive at 4495. This is a heavy, powerful, well-shaped wave. It’s only for experts – anything over 8 ft at this break demands respect. With the reef and the long period, the wave will jack up. Crowds are possible, but the quality will be worth the crew.

From the 24th through the end of the month, the surf drops off. There are a few marginal windows – Monday 24 August has a 5 ft S swell (11 seconds) with a light cross-on breeze, not clean. Tuesday 25 August afternoon has a light onshore with a 4 ft SSW swell, but the wind state is unknown. Not a session to plan around.

The first week of September offers a couple of glimpses. Tuesday morning 1 September shows a 6 ft easterly swell, period 9 seconds, with a light cross-on (energy 450). That afternoon, the wind turns cross-off from the SW with a 6 ft SSW swell (8 seconds) – it’s clean, but a short period. By Wednesday 2 September, the swell drops to 4 ft but with a long 15–16 second period, energy moderate to strong (1075). The wind is cross-on, so it’s choppy.

In a nutshell: Sunday morning 23 August is the heavy highlight – truly big, clean, powerful groundswell. Thursday afternoon 20 August is your next best bet for solid, long-period waves. The rest is mostly marginal or messy, so pick your windows carefully.

Rusty.

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