San Juan Surf Forecast and Surf Report

Alright, Rusty here again. Let’s break down what’s in the water for San Juan over the next couple of weeks.

Right off the bat, it’s a tough run. The whole 16-day forecast is full of "poor surf conditions," so don’t be planning any trips. It’s a blank stretch with no real diamonds in the rough. The water’s running at about 74°, which is a touch warmer than average for this time of year, but you won’t be thinking about that when the wind’s all messed up.

From Thursday the 13th through to about Sunday the 25th of August, it’s a grind. Swell is coming from the NNE, pushing through at 3 to 6 ft, but with a short, weak period that never gets above 9 seconds. The combined energy climbs from a moderate 242 up to 426 by Tuesday the 25th, but the wind is relentless – mostly onshore from the NNE or N at 12 to 19 mph. That sets up choppy, messy surface conditions. Even the lighter wind moments on Monday the 17th morning (6 mph) and Tuesday the 25th morning (6 mph) are ruined because the wind is still onshore, just less powerful. The waves will be crumbly and bumpy, not worth the paddle.

There’s really only one window that looks a little better, and that’s around Monday the 17th into Tuesday the 18th. The swell period stretches to a slightly longer 9 seconds, and the height drops to a smaller 4 ft to 4 ft – making it potentially okay for intermediates – but it’s still onshore or cross-onshore. The combined energy is moderate, around 230-290, but the quality just isn’t there. If you’re really jonesing for a session, you might go for a quick dip, but it’s far from clean.

The second week, from Friday the 22nd onward, the swell picks up more size, hitting 5 to 6 ft, and the energy builds into the strong range (300-500). But the period stays short (7-8 seconds) and the wind remains onshore from the NNE or N at 15-19 mph. For an exposed reef like San Juan, that’s going to push the swell onshore and create bumpy, sectiony waves. At over 5 ft with those winds, it’s too messy for beginners, and even for experts it’s just a frustrating, blown-out mess – better suited for kite surfing than paddle surfing.

So, the takeaway: no true standouts on offer. This is a 16-day stretch where the conditions just aren’t playing ball. The lack of any clean, glassy windows makes this a time to wait it out.

- Rusty

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