13th Ave South Surfside Surf Forecast and Surf Report

Alright, let’s break it down for 13th Ave South Surfside over the 16-day span. The outlook is overall very quiet – don’t expect any big days. The swell stays tiny for almost the entire run, mostly around 0.7 to 1 ft, and mostly from the ESE or SE. There’s a lot of glassy mornings, which will keep the water smooth, but the lack of wave size is the main story here.

Water temperature is currently 83°F, which is only 0.4°F above the long-term average – totally normal for the time of year. Nothing unusual there.

Walking through the days. On Saturday 29 August morning, you’ve got a 0.7 ft ESE swell, glassy with a light NNE breeze at 3 mph (energy is a weak 9). Saturday afternoon is similar, 0.7 ft ESE and glassy. Sunday 30 August morning is glassy again, same 0.7 ft ESE, then a light SE breeze in the afternoon. Monday 31 August gives us a slight lift to 1 ft SE on the morning, with a cross-offshore NNE breeze, so it’ll be clean but small (energy around 22). Tuesday (1 September), Wednesday (2 September), and Thursday (3 September) are a repeat of small 1 ft to 2 ft SE swells, but the wind turns cross-onshore or choppy in the afternoons, so nothing special.

Friday 4 September morning is clean, with a 1.0 ft SE swell and a light cross-offshore WSW breeze. Saturday 5 September morning is glassy with 0.7 ft ESE. Then comes the slight highlight: on Tuesday morning 8 September, we see a 1.0 ft SE swell, but the wind is dead calm – glassy – and the period jumps to 13 seconds. That’s a long-period groundswell, and combined energy hits 66. The report says “surfable waves but very ordinary conditions” – it’s still small, but that’s the best quality you’ll see all run. Wednesday morning 9 September also offers a clean, glassy 2 ft SE swell with an 11-second period and energy of 60.

After that, from 10 to 13 September, it fades quickly: back to 0.7 ft to 1 ft ESE/SE swells with onshore or cross-onshore wind, lower energy (often under 20), and a risk of thunderstorms on the 11th.

Best on offer: Your best window is Tuesday morning, 8 September, and Wednesday morning, 9 September. Glassy, light winds, and the longest periods we’ll see (13 and 11 seconds) will make those tiny waves look the most lined up and inviting. It’ll be small, but it’ll be your cleanest option.

This break is inconsistent and can sometimes draw a crowd, but with surf this small, it’ll be quiet. Best suited for beginners on these days.

Rusty.

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