Bonza Bay Surf Forecast and Surf Report

Alright, let’s break down Bonza Bay.

The next couple of days are looking pretty grim. We’ve got a big, powerful, long-period south swell hitting right off the bat on Wednesday the 26th of August, pushing 8ft to 10ft with a period of 16-17 seconds. That’s a lot of juice in the water (combined swell energy of 3734 to 4047). But the wind is a stiff cross-onshore, so it’s gonna be choppy and ugly. Wednesday is a total loss.

Thursday the 27th isn’t much better. Swell drops to about 5ft but the wind is a fresh cross-shore, keeping it lumpy. A real paddling grind.

Now, Friday morning the 28th of August – that’s when the tide turns. The swell is around 6ft, coming from the east with a 10-second period, but the wind is glassy. Dead flat. That’s a beautiful thing. The break is fairly consistent, and it’s an exposed river mouth, so that east swell will wrap in nicely. Water temp is about average for the time of year. This is your best bet for a clean, fun session in the short term – perfect for an intermediate surfer. Just know you won’t be alone; crowds are on the menu here.

Saturday the 29th still has some cleanish surf in the morning with a light offshore cross-off breeze and 6ft east swell, so it’s worth a paddle.

Then we hit a dead zone. From Saturday afternoon through the end of the month and into the start of September, conditions are poor. Wind is up, swell is small or messy. Not worth suiting up for.

Then we get to Wednesday the 2nd of September. A new, long-period SSW groundswell comes in at 8ft with a 15-second period and a moderate offshore cross-off wind. The combined energy is a solid 3087 – that’s proper power. This is a standout for experienced surfers. That long period will groom the waves nicely at the river mouth, but it’s gonna be too much for beginners. The wind keeps it clean.

Thursday the 3rd is cleaner but smaller.

Friday the 4th of September is an absolute beast. Swell is 12ft from the SSW. It’s clean with a light offshore, but honestly, that’s just too big for most – the data says it’s too big for the break. This is expert-only.

Saturday the 5th and Sunday the 6th bring even bigger swell (10ft to 13ft) but with strong onshore cross winds. That combo is a complete disaster. Wave energy is through the roof (2911 to 5890) and it’s just a churning mess. For paddle surfing, it’s a hard no. With that much wind and swell, this beach-and-river setup starts looking like a kite-surfing paradise rather than a surfer’s wave.

The following week, from Monday the 7th onward, it’s back to poor conditions – big onshore winds and rough seas. There’s a tiny glimmer on Wednesday the 9th of September in the afternoon with a glassy 3ft SSE groundswell, but it’s a long way off and the energy is weak (405). Something to watch, but nothing to bank on.

So, bottom line: your standout windows are Friday morning the 28th of August for a clean, fun surf, and Wednesday the 2nd of September if you’re an experienced surfer looking for some power. There’s a big gap of poor-to-marginal surf between them, and another one after.

Rusty.

Read more