Sandy Mouth Surf Forecast and Surf Report

Alright folks, Rusty here. Let’s get straight into it for Sandy Mouth. Honestly, this is a tough one to write. The whole 16-day window is one long stretch of underwhelming conditions, with not a single day offering truly good surf. You’re looking at a solid gap of poor quality right through from now until the very end of the forecast.

The first proper surfable waves show up on Tuesday morning, 25th August. We’ve got a tiny 1ft swell sliding in from the WNW, with a period of 10 seconds. The wind is offshore from the east at 12 mph, which will keep the surface clean. Water temp is sitting at 66°, which is 4° warmer than normal for this time of year – that’s notably warm, so a steamer might be overkill. The combined energy is weak, just 21 (moderate breeze). The wave comment says "poor surf conditions" and the score is a 0, so I’d be looking at a longboard or a foiler if you’re desperate. By Tuesday afternoon, the swell nudges up to 2ft from the west, but the wind goes cross-offshore, making it only slightly better. The energy jumps to 53 (moderate breeze), but it’s still very ordinary.

Wednesday morning, 26th August, starts with a 2ft west swell and 8-second period. The wind is cross-off from the SSE at 9 mph, and energy is 39 (gentle breeze). The afternoon gets glassy with zero wind, but the swell is still tiny, and the energy drops to 33 (calm). The wave comment reads "poor surf conditions" for both slots. It’s surfable, but barely.

From Thursday 27th August through to Monday 31st August, the swell picks up but the wind gets nasty. Thursday morning has a 1ft swell with 19 mph cross-onshore winds – that’s lumpy and messy. Friday afternoon sees swell jump to 5ft with a 6-second period, but it’s onshore and sloppy. Saturday 29th has 7ft swell, but with a 19 mph cross-onshore from the WSW, and energy climbs to 533 (fresh breeze). The setup is more interesting for kite surfing than paddle surfing. Sunday 30th morning has 5ft with 19 mph cross-shore winds, still lumpy. Monday 31st morning has 6ft onshore, 19 mph winds, and 422 energy (fresh breeze). All of these are "poor surf conditions" with scores of 0.

The first week of September doesn’t let up. Tuesday 1st September afternoon has 7ft swell from the WSW, but with a 25 mph cross-onshore, energy at 676 (strong breeze). It’s messy. Wednesday 2nd has 7ft onshore, 28 mph winds, energy 656 (strong breeze). Thursday 3rd has 5ft with a near gale 34 mph cross-onshore – blown out. Friday 4th sees a drop to 3ft, but still cross-onshore and choppy. Saturday 5th has the biggest swell of the whole run: 8ft from the west, 10-second period, 19 mph onshore winds, and a massive 1352 energy (fresh breeze). That’s strong, but with onshore wind and a beach break, it’s a washing machine. Too big for beginners, and only for experts if you can handle the chop.

The second week stays poor. Sunday 6th September has 8ft with 22 mph cross-shore winds, energy 1525 (fresh breeze). Monday 7th has 6ft with 25 mph onshore, energy 760 (strong breeze). Tuesday 8th has 8ft with 19 mph cross-onshore, energy 2007 (strong breeze). Wednesday 9th is the only sliver of hope: 5ft swell from the west, 11-second period, with a light 9 mph cross-onshore from the NW, and energy 584 (gentle breeze). The morning is "marginal" with a score of 1. The afternoon is clean with 6 mph wind, but it’s still cross-onshore. That 11-second period is a groundswell, which at a beach break might break a bit too straight, but with the light wind, it could offer a few clean walls for a competent surfer.

Overall, there’s nothing here that stands out as a true standout. The only day that *might* be worth a paddle is Wednesday 9th September, with a 5ft, 11-second groundswell and light winds. But even then, it’s marginal. For the rest, you’re better off waiting for the next system.

Rusty.

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