San Juan Surf Forecast and Surf Report

Alright folks, Rusty here. Let’s be straight with you – this is a tough one. The forecast for San Juan over the next 16 days is a long, frustrating stretch of onshore winds and messy, poor-quality surf. The first record pops up on Saturday, August 8th, but don’t get your hopes up; it’s a grim start.

The pattern is relentless. From Saturday the 8th all the way through to Sunday the 23rd of August, we’re looking at a solid block of days where the wind is hammering straight from the north or north-northeast, blowing right onto the shore. The swell is there, sure, bouncing between 3 ft and 7 ft, with wave energy ranging from moderate to strong (137 to 508). But that wind kills it. It’s a full-on onshore breeze, mostly 15 to 22 mph, which just tears the surface to bits. The waves are gonna be a lumpy, choppy mess with short periods of 6 to 9 seconds, so no real power or shape to speak of. The water temperature is sitting at about 74°F, which is a touch warmer than normal for this time of year, so at least you won’t freeze while you’re getting blown off your board.

San Juan (reef break) is the only name on the list, and it’s a consistent spot that’s exposed to the swell. The optimum direction here is a north-northwest swell, and we’re getting a north-northeast to north swell, so it’s not hitting the spot perfectly. The size is there – some days like Saturday the 15th seeing 7 ft – but with that onshore wind and the short period, even the bigger days are just going to be messy. For a reef break, you need clean conditions, and we ain’t getting them. There’s no stand-out session in this whole run. The crowd factor says “sometimes,” so if you’re desperate, you might find a few others out there, but it’s not going to be worth the paddle.

The energy does pick up a bit in the second week – around Friday the 14th and Saturday the 15th, the combined energy hits 467 and 508 (moderate to strong), with swell heights around 6 ft to 7 ft. But the wind is still onshore, and the period is still short. There’s a glimmer on the 19th and 21st where the period stretches to 9 seconds, and the wind drops to 16 mph, but it’s still onshore or cross-onshore, so it’s still not clean. Honestly, this setup looks more interesting for a kite surfer than a paddle surfer – those consistent onshore winds and waist-to-chest-high chop are perfect for them, not for us.

Bottom line: It’s a blank run. There are no good surf options in this 16-day window. The onshore winds are relentless, and the swell never gets the clean conditions it needs. San Juan is a consistent spot, so it won’t stay poor forever, but for now, keep the board in the car and wait for a change.

– Rusty

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