Mullaghmore Surf Forecast and Surf Report

Right, lads, Rusty here. Let's get stuck into what's happening at Mullaghmore. This is a famous big-wave reef that wants a very specific combination of clean conditions and a solid, long-period groundswell. We've got a very quiet start, with the first real chance of a wave not showing up until Thursday the 18th of September. Everything before that is a write-off thanks to poor conditions.

Alright, so for the first few days, forget it. We've got onshore winds ruining anything that tries to wrap in through to Wednesday the 17th. It's just not worth a look.

The first flicker of hope comes on Thursday morning, September 18th. The swell is showing at a solid 8 ft from the WNW with a long 13-second period (a groundswell), and that south-southwest cross-offshore breeze will keep the face clean. The combined energy is strong (2440) so there's plenty of push. This is a big, heavy wave for experienced surfers only – anything over 8 ft is expert territory. It's a reef, so that long period is perfect, but it's also “fairly consistent” here. The water temp is about average for this time of year.

Now, hold onto your boards, because Sunday, September 20th has a standout window. The afternoon is where it's at: an 8 ft WNW swell with a very long 14-second period, combined energy at 2844, but the wind swings perfectly southeast and goes *offshore*. The guidance says this spot loves a NW swell, and we're practically there. It’s glassy clean. This is serious, proper Mullaghmore. It’s only for experts at this size but the quality is excellent.

Then we have a bit of a messy run again until Tuesday, September 22nd. The morning offers a massive 16 ft W groundswell with a 13-second period and a glassy light ENE wind. The combined energy is massive (7302). This is huge, powerful, and will look incredible, but if you're not a seasoned charger with the right crew and safety setup, you should be watching from the cliff. The afternoon eases back to 12 ft, glassy as it gets, with an offshore breeze. Another incredible day for the serious crew.

Looking further out, Thursday, September 24th looks like another cracker. The morning has a 6 ft WNW swell with a very long 16-second period, that’s serious groundswell. The combined energy is still high at 2137, and with a light offshore breeze, those waves will be lined up perfectly. The afternoon holds at 8 ft with a glassy sea state. This is another expert session.

There is a big spike on the 27th of September (Sunday) but it’s looking messy with an onshore wind, so give it a miss.

The real standouts here are Sunday the 20th afternoon and the whole of Tuesday the 22nd. For the true big-wave specialists, Thursday the 24th also deserves a shout. For everyone else, the wait will be worth it when it comes together. This break is "sometimes" crowded, so expect some company when it's on.

Rusty.

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