Isla Negra Surf Forecast and Surf Report

Alright folks, Rusty here. Let’s break down what’s coming for Isla Negra in feet, Fahrenheit, and miles per hour. It’s a slow starter, so don’t paddle out on day one expecting much.

First real sign of life is Friday the 11th. Early morning, we get a 3ft groundswell out of the WSW, 12-second period. The wind is offshore from the SSE, and that’s going to put a shine on the faces. Combined energy comes in at 261 (moderate). It’s not a huge day, but for a consistent reef, that offshorn wind is worth getting out of bed for.

Saturday the 12th morning is the first standout window. Swell pushes up to 5ft from the WSW, period is 9 seconds, and the wind holds offshore from the SSE. Combined energy reads 350 (moderate). That’s clean, it’s fun-sized, and the reef will handle that just fine. This is the best call for the first week.

Sunday the 13th and Monday the 14th keep the trend going. Monday the 14th morning is the real treat: 3ft swell but a very long 15-second period, glassy conditions from the SSE, and the energy jumps to 545 (moderate to strong). That long-period groundswell will wrap deep into the reef. It’s clean, it’s powerful between sets, and it’s the standout session for quality.

The water temperature is about 57°, which is nearly two degrees warmer than normal for this time of year—a nice surprise for your toes.

After that, the middle of the week gets a bit messy. Nothing worth a special trip. Then on Monday the 21st of September, we get the biggest pulse of the whole run: a 5ft + swell out of the WSW with a 12-second period. Combined energy is strong at 698. Wind is a cross-off from the S. That’s a big, powerful day, strictly for the experienced crew. Beginners should sit that one out.

The last few days of September settle back to a steady 3ft to 4ft with some glassy mornings, but the numbers don’t lie—Monday the 21st is the big one for power, and Monday the 14th is the one for quality and clean lines.

Rusty.

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