Lahaina Breakwall/Harbour Surf Forecast and Surf Report

Alright, listen up. Rusty here, and I’ve been chewing on the numbers for our local stretch. It’s a slow cooker, not a sizzler, so you’ll need to pick your windows. The first week is mostly a tease, but there’s a proper hit of fun if you’re patient.

The whole run starts off flat. Wednesday the 2nd and Thursday the 3rd are just dribble – the combined energy is a weak 155 m, dropping to 64 m, so don’t even bother. Friday the 4th is still ordinary, though the afternoon sees a bump to 121 m with a 0.6 m south swell, but the wind is from the NE at 15 mph, which is offshore but a bit strong for the harbour.

The first real light comes on Sunday the 6th. The afternoon brings a shift. Clear skies, a light NE breeze at 6 mph, and a 1.0 m SW swell with a 12-second period. The energy climbs to 303 m, and the report says “expect good surf conditions.” Lahaina Breakwall/Harbour will be the spot. That 1.0 m from the SW, with light offshore wind, will be clean and fun. The water is a balmy 81°F, which is about normal for this time of year, so no worries.

Monday the 7th keeps that vibe. The morning has a 0.9 m SW swell, energy at 396 m, and light ENE wind at 6 mph, offshore. The afternoon is even better, 1.0 m SW, 12-second period, hitting 480 m of energy. That’s a solid, fun day. The break is consistent, but it can get a bit busy, so if you can, the morning might be a tad quieter.

Now, here’s the one. Tuesday the 8th is the standout. The morning swell jumps to 2 m from the WSW with a 15-second period, and energy is a massive 2160 m. But the wind is a light cross-shore from the SSE, making the morning tricky. The afternoon, though, is where it’s at. A 2 m WSW swell, 13-second period, and clean offshore winds from the ESE at 9 mph. The report says “excellent surf conditions for experienced surfers.” That 2 m is pushing into the zone for proper surfers only, not for beginners. The direction is perfect for the break, and with that long period, it’s a proper groundswell with some punch. The reef will handle it beautifully.

After that, the energy fades. Wednesday the 9th is still fun but smaller, 0.9 m to 0.7 m, with clean conditions. Then from Thursday the 10th through to Tuesday the 15th of September, it’s a long, flat run. Swells drop to 0.4 m or less, with energy as low as 37 m. It’s a real desert. The second week has a few faint pulses – Wednesday the 16th and Thursday the 17th show a 0.6 m SW swell with a 19-second period and energy around 250 m to 286 m. That’s very long period, so it’ll be more of a glassy, lined-up wave at the reef, but it’s small. It’s promising but less certain.

So, bottom line: the first week is a slow burn, but Sunday the 6th and Monday the 7th are your solid, fun days. Tuesday the 8th is the absolute winner for experienced surfers who want a proper, clean, powerful wave. The rest is a waiting game. Don’t stress about the flat spell – the break is consistent enough that it’ll come back, and forecasts can change.

Rusty, signing off.

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