San Vicente Rivermouth Surf Forecast and Surf Report

Alright, let’s get into it. This is San Vicente Rivermouth, a river mouth break that’s fairly exposed to the northwest swell. Water temp is sitting at 73°, which is a touch warmer than normal for this time of year—nothing crazy, just a little extra warmth in the water.

First few days are a bit of a write-off, to be honest. Thursday the 27th has tiny 1ft swell from the northwest with only 8 seconds between waves, and the energy is weak (24). The morning is glassy but the waves are just too small and weak to bother with. Stay home.

Friday the 28th sees a bump up to 3ft, period still short at 7 seconds but the wave energy climbs into the moderate zone (135). The morning is cross-off, afternoon turns glassy. Still, it’s only ordinary surf—nothing to get excited about. Saturday the 29th stays similar: 4ft in the morning with glassy conditions but the energy is moderate (168). Sunday the 30th is where it starts to get interesting. The morning has 4ft northwest swell, 10-second period, glassy wind, and the energy jumps to 311—moderate but solid. That’s the first real standout: clean, glassy, and the swell is starting to shape up. The rivermouth should be handling it nicely.

Monday the 31st carries that momentum. The morning session is the call: 5ft, 10-second period, glassy again, with energy at 369. This is good surf and the best of the early run. The afternoon gets a bit messy with onshore wind and the swell pushing 5ft, so stick to the morning.

Then we hit a dry spell. Tuesday September 1st drops back to 3ft, and from Wednesday the 2nd through Friday the 4th, the swell is tiny—2ft to 2ft—with poor energy and mostly cross or cross-on winds. Not worth paddling out.

Saturday September 5th brings a new pulse: 5ft but with a longer 12-second period and energy spiking to 558. That’s a big jump in power. Wind is light cross-shore though, so it’s a bit lumpy—still, the swell size and period make it a promising option for stronger surfers. Sunday the 6th is similar but smaller at 4ft.

Monday the 7th is ordinary again, but Tuesday the 8th is the big one to circle. The morning has 6ft from the north-northwest, 11-second period, and energy at 694—strong. Wind is light cross-on, so it’s a bit bumpy, but the size and power are there. This is expert territory at 6ft for a river mouth. The afternoon stays big at 5ft but onshore wind makes it a miss.

Wednesday the 9th fades, and then Thursday the 10th is another standout: morning has 5ft, 9-second period, cross-off wind, clean, and energy at 566. That’s excellent—clean, solid, and the rivermouth should be running well. The afternoon drops to 3ft but turns glassy, so it’s a nice mellow session.

Friday the 11th fades out with small, weak swell.

Overall, the real highlights are Sunday the 30th and Monday the 31st mornings, and then the big pulse on Tuesday the 8th and Thursday the 10th mornings. The rivermouth handles northwest swell well, and those glassy windows give you the cleanest waves. Crowds are sometimes an issue here, so if you can get out early, you’ll have it better.

Stay stoked,
Rusty

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