21st Street (Miami) Surf Forecast and Surf Report

Alright, Rusty here. Let’s take a look at what’s cookin’ for Miami.

Alright, I’ll be straight with you – the outlook for the next two and a half weeks is a bit of a bummer. We’re looking at a long, flat run with very little to get excited about. The first surf recommendation doesn’t pop up until early September, so you’re looking at a pretty significant gap of quiet water right now.

Let’s start with the only spot on the radar, 21st Street. We’ve got a tiny little bump arriving on the morning of Tuesday, September 2nd. Swell is coming from the East at a paltry 1.0 ft with a period of 10 seconds. The combined energy is barely a whisper at (41), so it’s weak. The wind is onshore, so it won’t be clean. This is strictly for the diehards who need any kind of movement.

The rest of the first week into the second week is pretty much the same story. We’re seeing a constant stream of onshore breeze and small, weak swell. On Wednesday, September 3rd, the wind bumps up to a moderate breeze onshore, making things messy. The waves stay small and weak.

Now, there is a flicker of something more interesting much later on. Looking way out to Tuesday, September 9th, we see a longer period groundswell. The early morning on the 9th shows a 1.0 ft wave from the East with a period of 10 seconds and a hint of offshore wind from the West. The energy is still low at (25), but that offshore breeze is a major positive. It’ll be clean and glassy, but the size is still tiny. It’s a far-off promise.

The real standout, and I mean the only one worth even a second look, is the Tuesday afternoon of September 9th. The swell direction remains East, but the period jumps to a very long 16 seconds. That’s proper groundswell. The combined energy ticks up a bit to (30). The wind is a clean cross-offshore from the SW. Even though the wave height is only 0.7 ft, that long period might coax a few smooth, peeling lines out of the sandbars. It’s not going to be big, but it’ll be the best quality wave of the whole period. For a point break or a reef, that long period is a dream. At a beach break like 21st Street, it might break a bit straight, but with that clean wind, it’s the saviour of the forecast.

So, the honest truth: there’s almost nothing rideable until the second week of September. The standout is that long-period, glassy afternoon on the 9th. Everything else is a write-off. Keep the board in the car just in case, but don’t hold your breath.

Rusty.

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