Onrus Surf Forecast and Surf Report

Alright folks, Rusty here. Let's talk about Onrus over the next couple of weeks. It's a bit of a rollercoaster, with plenty of wind to fight through, but there are a couple of windows that will make it all worth it.

We've got some serious energy coming in, but the wind is going to ruin a bunch of it early on. The best chance for clean, fun waves is at the start of the second week.

The First Week – A Wind Fight

We kick off with some sizeable but messy groundswell. Thursday the 3rd has a 5ft swell from the WSW with a solid 13-second period, packing 1291 units of energy. But the onshore wind from the SE at 9 mph is going to chop it up. By the afternoon, the wind jumps to 25 mph and the swell goes to 8ft, which is a total washout. For experts only, and even then, it's ugly.

Friday and Saturday the 4th and 5th are a complete loss. Strong cross-onshore winds from the ESE and E at 25-28 mph are going to ruin whatever 3ft to 7ft swell is out there. Stay home.

Sunday the 6th sees a massive pulse of energy from the SSW, with the swell hitting 8ft and the period stretching out to a very long 18 seconds. That's 4207 units of energy, a proper groundswell. But again, 19 mph winds from the east will make it a lumpy, cross-onshore mess. With that long period, it’ll be breaking too straight for any real shape on a beach break setup like this.

The Cleanup – Monday and Tuesday the 7th and 8th

Now we're talking. Monday the 7th morning is where it’s at. The wind swings to the west at a light 6 mph, going cross-offshore, which will clean things right up. We’ve got a 6ft swell from the SW with a 14-second period (1246 units of energy). This is excellent surf for experienced surfers – clean, solid, and with proper period behind it. The afternoon holds similar quality with a 6ft swell.

Tuesday the 8th morning keeps that same clean vibe with a light WSW cross-offshore breeze. The swell drops a bit to 4ft, and the period drops to 12 seconds, so still fun, just smaller.

Second Week – Size Returns, But So Does the Wind

After Tuesday, the wind messes things up again until the following Monday. The 14th of September is the next real highlight. The swell builds again to 7ft from the SSW with a 13-second period, bringing 1629 units of energy. But the magic is the wind: it’s forecast to be completely glassy in the afternoon. That is a rare treat. Zero wind, clean 7ft surf. That’s excellent conditions for experienced surfers. Get on it.

Later in the week, we see another pulse of energy. On Wednesday the 16th, there's a 7ft SW swell with a 15-second period (2106 units of energy) and fresh offshore winds from the WNW. That’s about as good as the long-range gets, but it’s a bit of a gamble. The period is so long (15 seconds) that at a spot like this, it might not set up perfectly, but with those offshores, it could be well worth the paddle.

Bottom line: The best windows are Monday the 7th and Monday the 14th. The 14th has glassy conditions and a solid 7ft swell, so if I had to pick one day to circle on the calendar, that would be it. Crowds are sometimes an issue here, so expect some company on those good days.

Rusty.

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