Asakawa Surf Forecast and Surf Report

Alright, let’s break it down. For the next couple of weeks, it’s a slow start, but then a big pulse of swell hits that’s worth the wait. Water temp at Asakawa is 83°F, right around normal for this time of year.

Right now, from Tuesday 18th through Wednesday 20th, it’s flat and messy. Risk of thunderstorms, light onshore winds, and tiny swell around 1ft to 3ft – not worth paddling out. The combined energy is weak, down to 66 (weak energy). Honestly, stay home.

Thursday 21st, there’s a glimmer. The morning shows a glassy 3ft S swell, period 9 seconds, and energy picks up to 202 (moderate). Conditions are ‘surfable but very ordinary’ – small, but you could grab a few if you’re keen. The afternoon turns onshore, so it’s a short window.

Friday 22nd through Sunday 23rd continues the small theme – glassy mornings with S/SSW swell around 2ft to 3ft, energy moderate (100 to 153). Not exciting, but clean for a beginner paddle.

Now, Monday 24th, the morning is the early standout. A glassy 3ft SE swell with a 16-second period rolls in – that’s a long-period groundswell, and the combined energy jumps to 731 (strong). Conditions are ‘very good’. This point break will handle that long period beautifully. Crowds are sometimes here, but it’s worth it.

From Tuesday 25th, things go big. The morning of the 25th has a clean, glassy 8ft SE swell with a 16-second period – energy at 3755 (very strong). That’s expert territory, but the shape will be incredible. The 26th morning sees a 10ft SE swell with offshore winds from the NE, energy 5315 – a five-star morning for experienced surfers. The afternoon on the 26th gets a bit cross-shore, but still solid.

The 27th is a massive 13ft SSE swell, morning cross-off winds from NNE, energy over 9000 – for the brave only. The 28th morning cleans up with a NW offshore breeze and 13ft SSE swell, energy 5854 – a dream window for experts. The 28th afternoon is glassy, 12ft SSE – trade winds off, clean as a whistle.

The 29th and 30th keep the good run going – 10ft S/SSE swell, clean mornings, offshore or cross-off winds, energy still in the 4000s. The 31st and into September 1st and 2nd hold size around 7ft to 8ft, with excellent morning conditions and clean lines. The best of the whole run? For me, it’s Tuesday 25th morning and Thursday 28th afternoon – both glassy, big, and perfect for experienced surfers. The long period (16 seconds) on the 24th and 25th is a standout for the point break. If you’re not an expert, give the 24th morning a look – it’s smaller but still quality.

Buckle up, it’s going to be a solid couple of weeks.

Rusty

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