Diano Marina Surf Forecast and Surf Report

Alright folks, Rusty here. Let’s get into it. Looking at the whole 16-day window for Diano Marina, it has to be said straight up: this is a tough run. The forecast is showing a lot of flat spells and tiny, weak swells that are barely pushing any energy through. We’re looking at a long gap of poor to no surf from the start until the second week, with only a few flickers of life.

Kicking off on Thursday the 9th, the water is a warm 78°F, which is a massive 7°F warmer than usual for this time of year – that’s a wild anomaly, feels like bathwater. But the surf? It’s a sad story. A tiny 1ft swell from the SW with a short period of 5 seconds and combined energy of just 5 means it’s barely a ripple. The wind is light and cross/cross-on, so the conditions are poor. This flat, weak pattern holds through the first week. There’s a brief moment on the morning of Monday the 13th where the wind goes glassy and cross-offshore, but there’s zero swell. That’s the whole story for the first seven days – a lot of still water.

We finally get a little pulse on the morning of Wednesday the 15th. A 1ft SW swell with a 4-second period trickles in, with combined energy of 7. The wind is glassy, which is beautiful to see, but the waves are tiny and weak. It’s the same story on the morning of Thursday the 16th: glassy conditions but no swell to speak of.

The next real chance shows up on the morning of Sunday the 19th. There’s a 2ft swell from the SSW with a 5-second period, hitting a combined energy of 16. The wind is light and cross-offshore, so the surface should be clean. It’s still small, and the period is short, so don’t expect much push. This is about as good as it gets for the whole run.

The only other standout is the morning of Wednesday the 22nd. We’ve got a 2ft SW swell with a 5-second period and combined energy of 40 – the highest energy reading in the entire forecast. The wind is light cross-offshore, keeping it clean. For a spot that’s been flat for days, 2ft is a welcome sight, but it’s still small and short-period.

The bottom line is that Diano Marina is in a major slump. The breaks are inconsistent, and the swell windows are tiny. If you’re desperate for a paddle, the mornings of the 19th and 22nd are your best bets, but temper your expectations. The good news is that the water is warm, and the wind often goes clean, so when a proper swell finally shows up, it could be magic. For now, it’s a waiting game.

Rusty.

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