Rosa Surf Forecast and Surf Report

Alright folks, Rusty here. Let’s talk about what’s coming up for Rosa.

The pattern starts this Saturday morning, September 5th, with clean, small waves. We’ve got a 3.3 ft swell rolling in from the south with a 9-second period. The wind is glassy out of the southwest – 3 mph – and it’s going to be light rain. It’s not a big day, but it's clean, and the wave energy is moderate (343). The water temp is about average for this time of year.

Saturday afternoon holds steady, with the swell bumping up just a touch to 3.6 ft, still from the south, 9 seconds, and the wind holds at 6 mph from the SSW, keeping it cross-off and clean. The energy is still moderate (314).

Sunday the 6th sees a jump in size. The morning brings 6.6 ft from the south, but the period drops to a short 7 seconds, and the wind picks up to 12 mph from the SW. It’s cross-off, so it’s clean, but the short period means it’ll be a bit lumpy and less organised. The energy is moderate (461). By Sunday afternoon, the swell hits 8.2 ft from the SSW, with a 9-second period, and the wind cranks up to 19 mph from the SSW. Still cross-off, still clean on the face, but that’s a chunky, powerful wave. This is pushing into expert territory. The energy is strong (1233).

Monday morning the 7th looks nice. We’ve got 5.9 ft from the south, 9 seconds, and the wind is light at 6 mph from the SW. It’s cross-off and clean. The energy is moderate (579). This is a good, solid option. Monday afternoon the wind swings to the ESE at 3 mph, making it a light cross-onshore, so the surface will get a little bumpy.

Tuesday the 8th is a mixed bag. Morning has 3.9 ft from the south, 10 seconds, with a light north wind, but it’s cross-shore. The energy is moderate (519). Afternoon turns ugly – the wind goes NNE at 9 mph, cross-onshore, and the swell shifts to a weak 5.2 ft from the ENE with a short 6-second period. That’s choppy and poor.

Wednesday the 9th has 5.6 ft from the ENE with an 8-second period. The wind is light from the north in the morning, but it’s cross-shore, and the energy is moderate (607). It’s rideable but not great.

Now, here’s something interesting. Thursday the 10th morning brings a glassy session with a tiny 2.0 ft swell from the SSE, but get this – the period is a very long 16 seconds. That’s pure groundswell. The energy is moderate (429), and it’s dead calm. For a spot like Rosa, which is exposed to the south, that long period will make for some clean, lined-up waves, but the size is tiny. It’s a window for a longboard or a funboard.

Friday the 11th is a write-off. The wind is howling from the NNE at 12 mph, creating a cross-chop on a 2.0 ft to 3.9 ft swell. Poor conditions.

Now, the standout. Saturday morning, September 12th. We’ve got 6.9 ft from the SSW, a 6-second period, but the wind is offshore at 3 mph from the west. Clean. The energy is moderate (422). Saturday afternoon is the biggest call of the period: 9.8 ft from the SSW, 9 seconds, and a cross-off wind from the WSW at 12 mph. The energy is very strong (1583). It’s clean, but that’s a solid 9.8 ft. This is only for experts. The swell is big and the wind is clean, but it’s a heavy day.

Sunday the 13th stays big. 9.8 ft from the south and south, 10 seconds, with cross-off winds from the SW and SSW at 12-19 mph. The energy is very strong (1810, 1846). Again, expert-only territory.

Monday the 14th drops slightly to 8.2 ft from the SSE, with a 12-second period. The morning wind is SW at 9 mph, cross-off and clean. The energy is very strong (1627). This is still a big, powerful swell, but the longer period makes it more lined up. It’s still for experienced surfers only.

The rest of the week into the 20th brings a mix of big, messy swells and onshore winds. The best of the second week looks like Wednesday the 16th morning, with 6.6 ft from the SE, 13 seconds, and a light south wind. The energy is very strong (1452). Still big, but cleaner.

And then, Friday morning, September 18th, is a real gem for the small-wave crew. 4.6 ft from

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