Onrus Surf Forecast and Surf Report

Alright folks, Rusty here. Let’s have a look at what’s on the table for the next couple of weeks.

We’re looking at a solid run of clean, rideable surf kicking off tomorrow morning at Onrus. This is a reef break, exposed to the SW, and it’s inconsistent – so don’t expect a conveyor belt, but when the sets come through, they’ll be worth it. The water temp is about average for this time of year. We start Tuesday morning, 8 September, with a clean 3ft swell from the WSW at a solid 12 seconds, and the wind is a light cross-offshore breeze. The combined energy is moderate (481). It’s a nice little start. Tuesday afternoon goes glassy, with a light southerly breeze and 3ft swell – that’s about as clean as it gets.

Wednesday morning, 9 September, is the real standout of the first half of the week. Glassy conditions again, with a 3ft, 13-second swell from the WSW. The energy is a touch lower (369) but with that period, the waves will have some shape. This is the pick of the bunch for the early days. The wind is a slight air, meaning it’s almost flat calm. It’s a great time to be out there, but keep in mind Onrus can get crowded sometimes.

The next few days get a bit messy. Thursday, 10 September, sees a jump in size to 7ft from the SW, but the wind goes onshore and the conditions are lumpy. The energy is very strong (2089) but it’s not surfable for the average punter. Friday and Saturday are a write-off with strong onshore winds and poor conditions.

Now, things start to get interesting again. On Monday, 14 September, a moderate offshore NW wind kicks in, cleaning up a 4ft, 12-second SW swell. The energy is moderate (937) and the sets will be clean. It’s a nice turn-around. Then Tuesday, 15 September, gets a bit wild. The morning is still clean with offshore winds and a 3ft swell, but the afternoon sees a massive jump in period to 25 seconds! That’s a very long period groundswell at 6ft, with a fresh offshore wind. The energy is extreme (4376). At a reef break like Onrus, this could be incredible – long, walling lines. But the conditions are listed as marginal, so it might be a bit of a challenge with the tide. Still, if you’re an experienced surfer, that afternoon session on Tuesday, 15 September, is a major standout.

The following Wednesday, 16 September, is also a big one but it’s getting too big. The swell hits 15ft from the WSW with a 17-second period, and it’s clean with cross-offshore wind. The energy is enormous (11546). But this is expert territory only – that size is dangerous for most. The same goes for the 20 September and 21 September swells – too big for the break.

After that, the swell drops back, but conditions stay poor with onshore winds right through to the end of the forecast on 23 September. The last few days offer a small 4ft, 12-second swell on the 23rd, but with cross-on wind, it’s not going to be much fun.

So, in summary: the best windows are the glassy Wednesday morning, 9 September, and the long-period, offshore session on Tuesday afternoon, 15 September. The rest is a mixed bag of onshore slop or massive, dangerous swell.

Rusty.

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