Surfnerd Logo

Surf forecast for Mundaka

Map showing Mundaka
Wwvs
0.3ft 2s.
0kJ
Swl 1
5.2ft 10s.
741kJ
Wnd
6mph
12mph
Tide
๐Ÿ’จmph
๐ŸŒŠft
โฑ๏ธs.
โšก๏ธkJ
Timezone:
Europe/Madrid
Forecast updated:
09/10, 02:00 am
Wind: SN UNITY Atmos
(20261008 18z)
Waves: SN UNITY WAVE
(20261008 18z)

Weather

Friday 09/10

Water temperature
67ยฐF
Daily average
Air temperatureBeta
Over water
61โ€“63ยฐF
On shore
50โ€“63ยฐF
Moon phase
Waning crescent
2% illuminated
Closest moon phase
New moon
Sat 10/10 05:51 pm
Tide range
-1.4ft - 10.8ft
Low 10:40 pm ยท High 04:35 pm
Next spring tide
Tue 27/10
13.0ft range
Next neap tide
Mon 19/10
4.1ft range

Timeline

Mundaka Surf Forecast Guide

Mundaka is a legendary left-hand rivermouth wave on Spain's Basque coast, widely considered one of the best rivermouth waves in the world. A long triangular sandbank shapes the swell into a fast, top-to-bottom barrel, with rides of up to 150 to 200 meters when it lines up. The take-off pitches hard and steep straight into the tube, then opens into a long, fast wall before the final sections, which vary in quality depending on how the sandbar is sitting.

When It Works

Mundaka draws swell from west to north (W-N), and it's the stronger northwest (NW) swells that light up the sandbank best. It works from 0.9 m / 3 ft to 3.7 m / 12 ft. The best conditions arrive in autumn and winter, roughly September through February, and it almost never works in summer. Good spells tend to be short-lived, often fading within a couple of days as the big swells drop, so the truly great days are limited each year. When a solid northwest pushes through, holding your position while paddling gets very difficult.

Wind and Tide

Look for southwest (SW) offshore wind to groom the wave. Mundaka works from low to about mid tide, with a rising tide the better call, since on an outgoing tide the rip becomes a serious problem. Keep an eye on the rip running along the cliff either way, though it doubles as a fast paddle back toward the peak.

Local Tips

This is an expert-level wave, best suited to a shortboard or a gun for the bigger days. Expect a very busy lineup when it's on, with the outer peak dominated by the pack, but even waves further down the bank can offer great barrels. The atmosphere in the water is friendly.

Access

Getting out is a straightforward paddle from the harbor. There's roadside parking and a car park in town, though spaces fill fast when the wave is on. You'll find camping and a surf shop nearby.

Surf spots near Mundaka

Laida
Biscay, Spain
Beach break
Fri 9
Sat 10
Sun 11
Mon 12
Tue 13
Laga
Biscay, Spain
Beach break
Fri 9
Sat 10
Sun 11
Mon 12
Tue 13
Mundaka
Biscay, Spain
Rivermouth break
Fri 9
Sat 10
Sun 11
Mon 12
Tue 13
Bakio
Biscay, Spain
Beach break
Fri 9
Sat 10
Sun 11
Mon 12
Tue 13
El Basurero
Biscay, Spain
Point break
Fri 9
Sat 10
Sun 11
Mon 12
Tue 13

Frequently asked questions

What are good surfing conditions for Mundaka?

Mundaka is usually best with swell from west to north (W-N), ideally northwest (NW) around 0.9 m / 3 ft to 3.7 m / 12 ft, southwest (SW) offshore wind, and low to mid tide.

Where is the surf spot Mundaka?

Mundaka is a surf spot in Mundaka, Biscay, Spain.

What is the surf break like at Mundaka?

Mundaka is a left rivermouth break over sand. Expect a very busy crowd and a friendly lineup.

What season is best for surfing Mundaka?

The main surf season at Mundaka is autumn and winter.

What surfing skill level is Mundaka suitable for?

Mundaka can suit expert surfers.

Is Mundaka beginner friendly for surfing?

Mundaka is better suited to expert surfers.

What surfboards work at Mundaka?

Shortboard and Gun are common choices at Mundaka.

What facilities are available for surfers at Mundaka?

Facilities for surfers at Mundaka: camping and surf shop.

Is there parking for surfing at Mundaka?

Parking around Mundaka: roadside parking and car park.

What surf spots are near Mundaka?

Other nearby surf spots are Laida, Laga, El Basurero, and Bakio.

What swell direction works for surfing at Mundaka?

Mundaka can work with swell from west to north (W-N); northwest (NW) is usually best.

What swell size works for surfing at Mundaka?

Mundaka usually works with swell around 0.9 m / 3 ft to 3.7 m / 12 ft.

What wind direction is best for surfing at Mundaka?

Southwest (SW) offshore wind is usually best at Mundaka.

What wind direction is offshore for surfing at Mundaka?

Southwest (SW) is offshore at Mundaka.

What tide works best for surfing at Mundaka?

Mundaka works best around low to mid tide. A rising tide is usually better here.

Open in the app

Scan the QR code to open the Surfnerd app

Surfnerd Logo

Login to your Surfnerd account

Log your sessions, save your favorite spots, and keep your surf forecast personalized.

Log in with AppleLog in with Google
or signup with email

Readme

Welcome! If youโ€™re new to surf forecasting, check out this quick guide.

Forecast Table

The forecast table (the section on the page with all the numbers) is designed to pack as much information in the screen as possible. Although intimidating at first, it will help you make informed decisions about the waves faster, trust me :D. The table consists of roughly four sections, time and predictions, wind, waves, and tides:

๐Ÿ”ฎ Time and predictions section

Here we show the forecast thour and the overall surf quality prediction. This is determined based on the wave, wind and tide quality prediction. These individual predictions can be found on the forecast map.

๐Ÿ’จ Wind section

The first row on the table (with the ๐Ÿ’จ icon) shows wind speed, direction and gust. The more the wind speed the more aggressive the color (from blue, green, orange to red).

๐ŸŒŠ Wave section

The waves section consists of three rows, one for wave height and direction, one for period and one for wave energy. Our algorithm chooses the "dominant wave" using spot-adjusted surf energy (depth + directional fit). This is usually the first swell partition, but during local storms it can switch to wind waves. If that happens, values are shown in gray and italic.

๐ŸŽฏ Model agreement

The small letter in the wind and wave cells shows how closely the weather models we blend agree for that hour.

  • H, the models line up closely.
  • M, the models differ somewhat, so conditions may still shift.
  • L, the models disagree, so check again closer to your session.
  • A dash means only one model covered this hour, so there was nothing to compare.

For wind we compare each model's wind vector, plus gusts where every model reports them. For waves we compare height, period and direction of the matched swell systems.

It is a measure of model agreement, not a probability that the forecast is right.

๐ŸŒ’ Tide section

The tide section consists of a row with the actual heights per hour (measured at the half hour) and a table that displays the flow of the tide and the extremes (lows and highs).

Forecast map

The forecast map consists of arrows. These arrows represent all wave partitions (swell partitions and wind wave partition) and the wind. This allows you to see things like: a secondary swell or wind waves messes up the surf, or the wind is just a tick offshore so very surfable. Click a metric label in the bottom left to bring that arrow to the front โ€” handy when arrows overlap.

Forecast Cheat Sheet

Short on time? Focus on wave energy. Itโ€™s the best single metric to gauge how big and powerful the waves will be.

Click any table cell to jump to that forecast hour. The map will update with forecast arrows, so you can see if wind and swell direction are lining up.

Use the table sidebar to switch units for height and speed.

Log your surf sessions to compare forecasts with real sessions and sharpen future predictions.

Models and Updates

Surfnerd blends multiple global and local wind and swell models using advanced interpolation and spatial techniques to create an "ensemble" forecast. Forecasts are refreshed hourly.

Surf Predictions

Our AI-driven algorithm scores surf quality, shown by green, orange, and gray dots. Each forecast hour is rated for wind, swell, and tide quality, then combined into an overall score. Hereโ€™s the scale:

Perfect
Good
Average
Bad or No Data

Session logs also feed the algorithm โ€” the more you log, the smarter your forecasts get.

With Surfnerd, no more "you should have been here yesterday"

Surfnerd Logo
More good sessions. Less time wasted.
What you get
Free
SN+
Forecast range
5 days
15 days
Surf-window timeline
5 days
15 days
Watched spots
1
Compare forecasts
Not included
Model agreement
Not included
Related sessions
Not included
Custom spots
5
Compare all features
Free for 7 days. No payment details needed. One trial per account.
Share
Join Surfnerd
Watch and save spots, log your sessions and set up the forecast your way. It's free.
Sign up with AppleSign up with Google
or signup with email