Mundaka Surf Forecast and Surf Report

Alright, Rusty here. Let’s talk about what’s brewing for Mundaka.

First thing – there’s a bit of a lull before things get good. The first real standout doesn’t hit until Sunday, September 20th, but there are a few sessions before that if you’re keen and flexible.

The water’s sitting at 73°, which is much warmer than usual – nearly three degrees above the norm, so you’ll be comfy in a spring suit or even a shorty.

Sunday morning, September 13th, kicks off with glassy conditions – a light ESE breeze at 3 mph, and a clean 4ft swell from the NW with a 13-second period. The combined swell energy is moderate at 546. Not a standout, but a nice start.

Then things get messy. From Monday the 14th through Saturday the 19th, it’s mostly cross-onshore winds, choppy seas, and short-period slop. Tuesday the 15th sees energy drop to just 99 – barely a ripple. Wednesday the 16th is onshore and ugly. Thursday the 17th has some size but the wind’s all wrong. Friday the 18th morning cleans up a little with a light cross-offshore breeze, but the swell’s only 3ft and the energy is weak at 200 – just ordinary.

Now, Sunday, September 20th morning is where it starts to get real. Glassy conditions, ESE wind at 3 mph, and a solid 6ft NW swell with a 12-second period. Energy is 977 – moderate but building. This one’s for the competent crew.

Monday, September 21st morning is the big one. We’re looking at 7ft from the NW with a 14-second period and energy surging to 1811 – that’s strong. The wind is light and cross-shore from the west at 6 mph. This is expert territory at that size, but Mundaka’s river mouth setup handles long-period groundswell beautifully. It’ll be powerful, lined up, and world-class.

Wednesday, September 23rd morning is another glassy beauty – 5ft from the NNW with a 12-second period, no wind at all, and energy at 734. Perfect for a more mellow session if the big days are too much.

Then Friday, September 25th morning brings offshore wind from the SSE at 3 mph, 6ft from the NNW with a 13-second period, and energy at 904. Clean and lined up.

The standout without question is Monday, September 21st morning. That 7ft NW swell with 14-second period and 1811 energy, paired with light cross-shore wind, is the pick of the entire forecast. Sunday the 20th morning is a close second – slightly smaller but glassy, which is a rare treat.

Mundaka is an expert wave, consistent, and often crowded. It’s fairly exposed to the NW swell, and the optimum direction is NW, so everything lines up perfectly.

After the 25th, the wind shifts onshore again and conditions go downhill through the end of September. So mark your calendar: from Sunday the 20th to Friday the 25th is the window, and Monday the 21st is the one to circle.

Rusty out.

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