Annascaul Rivermouth Surf Forecast and Surf Report

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

Right off the bat, I gotta be straight with you: for the first ten days or so, it’s pretty grim. We’ve got a lot of onshore and cross-onshore wind messing things up, and the surf quality just isn’t there. The water temp is sitting at a pretty pleasant 62°, which is a touch warmer than normal for this time of year, so it’s comfortable for a paddle even if the waves aren't cooperating.

We start on Friday the 11th of September with some chest-high swell around 6 ft from the west, but that cross-on wind from the WNW at 6 mph puts a bit of a chop on it. The combined swell energy is moderate (489). It’s only a marginal call at best. The afternoon turns worse with onshore wind. Saturday the 12th and Sunday the 13th are write-offs with rain and poor conditions, even though the swell jumps up a bit. Monday and Tuesday keep the poor theme going despite some size. The rest of that first week and into the next is a real mixed bag of flat spells and onshore junk. There’s a big gap where there’s really nothing to recommend.

But then, hang on to your board. The standout window fires up later in the month. On Tuesday the 22nd of September, we get a serious pulse of groundswell from the WNW. The swell height hits 12 ft with a very long period of 14 seconds. This is serious wave energy, with a combined energy reading of 3888 – that’s strong. The wind goes glassy in the afternoon, and it’s cross-offshore, meaning clean, lined-up waves. This is strictly for experienced surfers only; it's too big for beginners. The setup being a sheltered rivermouth should handle that long-period swell well, giving it shape rather than letting it close out.

The morning of the 23rd of September is still a ripper. Swell drops a bit to 8 ft from the WNW, period still a solid 12 seconds, and the energy is still very strong (1977). Wind is light and cross-offshore again from the east. This is still excellent, powerful surf, but a little more manageable than the day before. After that, conditions drop off again with stronger NNW winds.

So really, the entire forecast hinges on that one two-day window on the 22nd and 23rd of September. That’s the call. The rest is a waiting game. It can get quiet here, so when it turns on, you gotta be ready.

Rusty.

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