Onrus Surf Forecast and Surf Report

G'day, Rusty here, looking at what's on the cards for the Onrus area over the next couple of weeks.

We've got a proper south-west groundswell pulse arriving early, but it's a game of two halves. The first week is a write-off for most, thanks to strong winds and messy conditions, but there's a decent window of clean, smaller surf in the second week. The real standout, however, is the very first day.

Onrus is a reef setup, so it needs the right direction and size. Water temps are about average for the time of year.

Tuesday, September 1st morning is the absolute pick of the entire forecast. We've got a solid 8 ft swell rolling in from the southwest, with a period of 13 seconds, packing a massive wallop of energy (2340). The wind is light at 3 mph from the WSW, keeping it cross-off and clean. This is proper, excellent surf, but it's only for experienced surfers at that size. The quality is there, but the power is real.

By Tuesday afternoon, the swell jumps to 10 ft (3257 energy) and the wind picks up to 9 mph from the west. It's still clean, but that's just too big for Onrus to handle well.

Wednesday morning is a similar story: 10 ft SW swell, but with a clean 3 mph ESE wind. Again, too big for comfort.

From Wednesday afternoon right through to Sunday, September 6th, it's a write-off. Cross-onshore winds and strong breezes dominate, with a brief spell of rain. The swell drops and fluctuates, but the wind just ruins everything. There's a messy, choppy, and poor stretch of surf for nearly a week.

Monday, September 7th morning is a bit of a relief. The wind swings around to a light 6 mph NE, keeping it cross-off, and the swell drops to 3 ft from the SSW with a 12-second period (497 energy). It's clean, but small. Expect good surf, but it's hardly a standout.

The next few days are then small and mostly ordinary. Tuesday, September 8th has a tiny 2 ft swell with a light offshore WNW wind, but it's very small. Wednesday, September 9th morning is glassy with a 2 ft, 15-second period SW swell, but again, it's tiny. This small, clean pattern continues, but the swell is too weak to get excited about.

Tuesday, September 15th brings a change. The morning is glassy with a 3 ft SW swell (299 energy). It's clean, but small. The afternoon is where it gets interesting. A 2 ft swell from the southwest with a very long period of 19 seconds (526 energy) and a 9 mph WNW cross-off wind. The period is extremely long, which means the energy is drawn out, but for a reef like Onrus, that can offer some great lines. It's very clean, and the forecast is very good.

Wednesday, September 16th morning is a cautionary note. A big 10 ft SSW swell (3102 energy) with a 16 mph NW offshore wind, which is clean. But at 10 ft, this is strictly for experts only at Onrus. It's a powerful, heavy swell.

So, for the best surf, you have to be ready on Tuesday, September 1st morning for the big, clean south-west swell. After that, the second week has a few clean but smaller days, with Tuesday, September 15th afternoon offering the most interesting, long-period lines. If you're a beginner or intermediate, the first two weeks are mostly too big, too windy, or too small.

Rusty out.

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