Big Rock Surf Forecast and Surf Report

G’day, Rusty here. Look, I’ve been staring at the charts for Big Rock, and honestly, it’s a wild ride ahead. We’ve got a solid run of south-west groundswell on the horizon, but the wind is going to be our biggest enemy for most of it. The water is sitting at 66.4°, which is a touch warmer than normal for this time of year, so at least you won’t be freezing your nuts off between sets.

The first real action kicks off on Friday, 31 July. We’ve got a 9.8ft SW swell rolling in with a 16-second period, carrying a massive 5256 units of energy. The problem? It’s rain showers and a fresh 35 km/h NW cross-on breeze. The surf is going to be a messy, lumpy mess. If you’re thinking of paddling out, save your energy. It’s a write-off.

Saturday, 1 August, looks a bit better. The swell builds to 13.1ft in the morning from the SW, with a 14-second period and 5842 energy units. The wind swings to a moderate 25 km/h S cross-shore, which is still a bit of a chop. The afternoon is the pick of the day: the swell jumps to 14.8ft, the period stretches to 15 seconds, and the energy hits 8673. The wind drops to 20 km/h and stays cross-shore, but the wave comment says it’s still marginal. Not perfect, but it’s the best we’ve seen so far. I’d say it’s worth a session if you’re keen.

Sunday, 2 August, cleans up nicely. A northeasterly breeze at 20 km/h in the morning, dropping to a light 10 km/h in the afternoon, both cross-offshore. The swell is a solid 9.8ft from the SW with a 13-second period. The energy is still strong at 3475 in the morning and 2677 in the afternoon. The afternoon is described as “clean” – finally, some decent shape. The water is glassy in the afternoon with that light breeze. This is a good one for experienced surfers, as the swell is solid but not stupid.

Monday, 3 August, the swell drops off to 6.2ft in the morning and 7.2ft in the afternoon. The period is still long at 15-16 seconds, but the energy drops to 1563. The wind is light, but it’s cross-shore in the morning and cross-on in the afternoon. It’s marginal, small, and a bit bumpy. Not a standout.

Tuesday, 4 August, is a total write-off. The wind cranks up to a fresh 30 km/h onshore from the WSW, and the swell is 11.5ft with 7454 energy units, but it’s rain and onshore slop. Don’t bother.

Wednesday, 5 August, is a big day. The swell hits 14.8ft from the WSW with a 16-second period and nearly 10,000 energy units. The wind is a gentle 15 km/h onshore in the morning, and a moderate 20 km/h onshore in the afternoon. The wave comment says it’s marginal, but with that much energy and a clean forecast in the afternoon, it could be epic if the wind lays off a bit. It’s big, but it’s a reef break, so it might hold. Keep an eye on it.

Thursday, 6 August, is a write-off again. Winds are howling 35-45 km/h from the WNW, cross-on to onshore. The swell is 13.1ft, but it’s completely blown out.

Now, here’s where it gets interesting. Friday, 7 August, the swell goes absolutely mental. 23.0ft from the WSW with a 14-second period, and 19062 energy units in the morning, ramping up to 39207 in the afternoon. The wind is a moderate 25 km/h onshore in the morning, but it’s a strong 40 km/h onshore in the afternoon. The wave comment says the wind and tide are favorable, but the swell is predicted to be too

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