Annascaul Rivermouth Surf Forecast and Surf Report

Right then mate, Rusty here. Let's have a look at what Annascaul Rivermouth has got cookin' for us over the next couple of weeks. It's a bit of a slow burner, to be honest. The first week is tough going, with a lot of wind and slop to fight through, but there are a couple of glimmers if you're patient.

Right off the bat, we've got a rough start. Tuesday, Wednesday, and Thursday are all pretty grim. The wind is onshore or cross-onshore, and the wave quality is just poor. The swell is there, around 5ft to 7ft, but with that short period and wind, it's a messy, choppy affair.

Now, we hit a major lull. Thursday night through to Sunday morning the combined energy drops right off to a tiny 53, with swell heights barely 1ft and a long period of 14 seconds. That long period groundswell with almost no size means it's just flat, with a bit of a pulse. That period is long, but with that small height, it's just not worth the effort.

Saturday morning shows a bit of a pulse of energy coming back, with 488 energy and 5ft from the west. The wind is a light cross-onshore, so it's marginal, but it's the best we've seen in days. We're still in a poor zone though.

Sunday and Monday stay frustrating. More cross-onshore wind and choppy surf. The water here is likely around average for the time of year.

Then we get a bit of a window. Tuesday the 7th of September morning brings a decent 8ft of west swell. The wind is light and cross-shore, with a period of 10 seconds. The combined energy is a solid 1164. That's moderate to strong energy, and it's the first real chance of a proper wave. The afternoon cleans up too, but the size drops back. The wind is light, so it might be clean but it's still a marginal call on the tide. This is a spot that can get a few heads on it, so there could be a crew out.

Wednesday the 8th of September is a write-off. Massive 15ft of swell with onshore wind. That's expert-only, messy, and dangerous. That's a big one.

Thursday the 9th of September has a clean-up. The wind goes cross-off from the north, and while the swell disappears for the morning, the afternoon sees a clean 5ft of west swell with a light cross-off breeze. The energy is back over 400. That's a promising sign.

We then hit another poor run for a couple of days with onshore wind.

Friday the 11th of September morning sees a solid 12ft west swell arrive, with a light cross-on breeze. The energy is massive - 2881. That's very strong energy. The wind isn't perfect, but it's light. This is a pretty heavy and powerful wave, but the wind isn't totally clean. It's a bigger, more powerful day.

Saturday the 12th and Sunday the 13th of September are small and clean, with light offshore or glassy conditions. The swell is tiny, around 3ft to 3ft. Not worth paddling out.

Monday the 14th of September brings a solid 8ft of long-period groundswell from the west-southwest. The period hits 12 seconds, and the combined energy is 1510. The wind is light and cross-shore. This is a proper long-period groundswell, and it will likely bend around the river mouth nicely.

Now, the real standout looks to be Tuesday the 15th and Wednesday the 16th of September. Tuesday morning, we have a clean 5ft of west-southwest swell with a 11-second period, glassy conditions, and a massive 634 combined energy. The afternoon is just as clean and glassy. The wind is a whisper. This is the best looking period for clean, fun waves.

Wednesday the 16th of September continues the trend with a light cross-off wind and a clean 4ft of long-period 12-second groundswell, with 570 energy. That's a really good window for a river mouth wave that will be well-shaped by that long period.

The best of the whole run is Tuesday the 15th of September. That glassy morning with the 5ft swell, long period, and clean conditions is the one to mark in the diary.

Rusty.

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