Onrus Surf Forecast and Surf Report

Alright, let’s have a look at what’s on the cards for Onrus. This is a reef setup, exposed to the southwest swell, and it can be inconsistent – so when it turns on, you’ve got to be ready. The water temp is about average for this time of year, nothing wild going on there.

We start off Monday 14 September with some clean fun. Morning sees a moderate offshore breeze from the northwest with a 4ft SW swell, period of 12 seconds. It’s not huge, but the combined wave energy is moderate (434). Expect good surf conditions – clean, rideable, and not too crowded, though it can get busy sometimes. Afternoon stays clean but the wind picks up to a fresh breeze, and the swell drops just a touch. Still worth a paddle.

Tuesday 15 September gets a bit more interesting but trickier. Morning has a stronger northwest wind, 25 mph, and a bumpy 6ft swell from the WNW with a short period of only 6 seconds. The combined energy is moderate (512), but it’s a messy, hard-to-paddle-into affair. Afternoon improves on period though – a 4ft SW groundswell at 16 seconds, combined energy jumps to strong (1269), but that wind is still strong offshore, making it clean but difficult. Only for those who know what they’re doing.

Wednesday 16 September through to Thursday 17 September – look, I’ll be honest, it’s not great. Onshore winds from the SE spoil the party. Wednesday morning has 8ft of SW swell at 14 seconds, strong energy (2497), but it’s onshore and lumpy. Thursday’s similar, 7ft SW, clean wind but onshore, making it poor. Beginners, stay out of this – over 5ft and messy.

Friday 18 through to Sunday 20 September – still struggling. Cross-onshore or onshore winds, lumpy, choppy. Some moderate swell around 5ft to 6ft, but the wind just kills it. Not worth getting excited about.

Monday 21 to Thursday 24 September – more of the same, I’m afraid. Onshore and cross-onshore winds, moderate swell, but nothing clean. The combined energy drops to moderate (around 500-600). A flat spell with no real standouts.

Now, Friday 25 September – here we go. Morning looks too big for this break at 10ft from the SSW, period 9 seconds, strong energy (1575) – that’s expert territory and the break might be overwhelmed. But hold on – Friday afternoon: a 5ft SW groundswell at 15 seconds, combined energy strong (2029), with a light cross-offshore breeze. Clean, good shape, and excellent for experienced surfers. That’s a standout.

Saturday 26 September morning – another cracker. 8ft SW groundswell at 15 seconds, combined energy very strong (3745), moderate offshore from the NW. Clean, powerful, and only for experienced surfers. This is the pick of the whole run, but you’ll want to be confident in bigger surf.

Saturday afternoon and Sunday 27 September – onshore winds come back, 10ft to 12ft of SW swell but messy and blown out. Not the one.

Monday 28 to Tuesday 29 September – Monday’s still onshore and lumpy with big swell. But Tuesday 29 September morning? Glassy conditions, 7ft SSW swell at 12 seconds, combined energy strong (1345). That’s clean, excellent for experienced surfers, and a nice way to finish the run. If you can wait, that’s worth it.

So the standout windows are Friday 25 September afternoon and Saturday 26 September morning, with Tuesday 29 September morning as a bonus clean session. Keep an eye on the long-period groundswells – they’ll be breaking clean on the reef, but expect longer waits between sets.

Rusty

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