Annascaul Rivermouth Surf Forecast and Surf Report

Alright, Rusty here again. Let’s break down what’s happening at Annascaul Rivermouth in feet and miles per hour. The first week and a half is a real bummer. We’ve got a long stretch of nothing, so don’t bother checking the charts until we get past it.

We start on Wednesday, 5th August with nothing. Clear skies, but a cross-shore wind at 15 mph is messing with a tiny 1ft swell from the west. The energy is just a whisper (29) and the waves are poor. All of the first week is a write-off. Thursday and Friday are tiny, bumpy, and cross-onshore. Saturday the 8th sees a pulse of 5ft from the southwest, but with a short period of 8 seconds and a combined energy of 252, it’s still too messy. The wind is light and onshore.

Then we hit a real dead zone from Sunday the 9th through to Tuesday the 12th. Swell is tiny, the wind is shifty, and the energy is barely there. It’s a proper flat spell. On Wednesday the 12th, we get a lift to 6ft from the southwest, but the wind is still onshore and the conditions are poor. The energy is moderate (544), but it’s not rideable.

The turning point comes on Thursday, 13th August. The morning has a 7ft swell from the west with a long period of 9 seconds and a solid 694 combined energy, but it’s still marginal. The afternoon is where it gets interesting – the wind swings to the northwest, goes light, and the sea goes glassy. We get a clean 5ft from the west-southwest. It’s surfable, but still ordinary. The real standout is Friday morning, 14th August. The wind is dead calm, the water is glassy, and there’s a clean 4ft from the southwest with an 8-second period. The energy is moderate (144). It’s not huge, but it’s the cleanest we’ve seen, and on a rivermouth, that glassy condition is a dream. That’s your best bet in the first two weeks.

But the real gem is waiting for us on Wednesday, 19th August. The morning is an absolute beauty. We’ve got a solid 6ft swell from the west with a 9-second period, glassy conditions with the wind coming from the southeast at just 3 mph, and the combined energy is pumping at 1026. The forecast says “expect very good surf conditions.” This is the one to mark on the calendar. It’s a week and a half out, so keep your fingers crossed, but if it holds, this is the best session on offer. The afternoon also stays clean, with 6ft from the west and glassy conditions.

The water temperature is about average for this time of year. No big surprises there.

The rest of the period after that drops off again. The 20th of August is back to poor conditions with a light cross-onshore wind. So, the plan is simple: sit through the first ten days of junk, grab that glassy Friday morning the 14th for a small clean session, and then go all-out on Wednesday the 19th for the main event. The swell direction is mostly from the west and southwest, which is right in the sweet spot for this spot.

Rusty.

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