Mundaka Surf Break

Lat Long: 43.42° N 2.70° W

Mundaka Surf Forecast and Surf Report

Issued: 7 am 21 Aug 2026 (local time)

Forecast update in  hr  min

Today's Mundaka sea temperature is
24.2° C
2.7° 

Mundaka surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Mundaka surf forecast from 21 Aug 2026:

  • Best quality surf: Friday 28 Aug, 5AM (local time) - 10ft (3.0m), 9s period, WNW swell with cross-offshore winds.
  • Most powerful swell: Friday 28 Aug, 2AM (local time) - 11ft (3.5m), 9s period, WNW swell with 1,781 kJ wave energy.
  • Next surfable swell (1★+): Friday 21 Aug, 11PM (local time) - 5ft (1.6m), 10s period with NW swell.

Best Forecast Surf Conditions for Mundaka this week:

The surf forecast for Mundaka over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Aug 21) at 11PM. The primary swell is predicted to be 1.6m and 10s period. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Mundaka in the next 16 days are 3.5m 9s and forecast to arrive on Friday (Aug 28) at 2AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Tuesday (Aug 25) at 8AM.

Wave TypeTime (CEST) & Date Wave Height & Period
Next good surf (1 star+)11PM (Fri 21st Aug)5ft (1.6m) 10s
Best Surf 5AM (Fri 28th Aug)10ft (3.0m) 9s
Most Powerful 2AM (Fri 28th Aug)11ft (3.5m) 9s

Table - best surf conditions forecast for Mundaka over the next 16 days.


The Lowdown

Alright, this is Rusty. Let’s talk about what’s happening with the waves. We’ve got a bit of a flat spell ahead, but there’s some serious promise further out.

The next week or so is a tough one. Right now through the end of August, we’re looking at a lot of poor conditions. The swell is small and messy, and the wind is mostly cross or onshore, making things choppy. There’s a couple of clean moments, like the morning of the 23rd with a light offshore touch, but the swell is tiny at only 2ft from the NW. It’s a real struggle to find anything rideable.

We hit a bit of a gap from the 24th through to the 27th. The swell is just too small or the wind is wrong. There’s a brief pulse on the 27th afternoon with a 6ft NW swell, but the cross-onshore wind kills it. It’s a write-off until we get to the 28th.

Now, here’s where it gets interesting. Friday morning, the 28th of August, is the standout of the whole outlook. Mundaka is looking at a clean 8ft swell from the northwest, with light offshore wind from the WSW. The combined energy is pumping at 926, showing solid power. This is a classic Mundaka setup – a long period swell (10 seconds) pushing down that river mouth, and with the wind offshore, it’s going to be glassy and hollow. This is expert territory, though. At over 8ft, it’s big and powerful, not for the faint of heart. The river mouth setup means it’ll handle that long period well, giving you long, tapering barrels. Expect crowds, because this spot is famous and consistent.

The following Saturday morning, the 29th, also offers a decent window. Swell drops to 5ft from the NW, but the wind is light offshore from the SE again, keeping things clean. Energy is still solid at 489. It won’t be as critical as Friday, but still a good session before the wind swings onshore in the afternoon.

Then we have another lull. The last few days of August and into early September are mostly small and unremarkable. The mornings on the 30th, 31st, and 1st of September have some glassy or clean conditions, but the swell is small to marginal (3ft to 5ft). It's surfable but nothing to write home about.

Mark your calendar for Thursday morning, the 3rd of September. This is another promising swell, bigger than the 28th. We’re looking at a 6ft swell from the NW, but with a very long period of 12 seconds, pushing the combined energy to 1025. The wind is light offshore from the WSW – clean and glassy. This is a groundswell, and at Mundaka, that’s a big deal. The rip bowls will be working, and the wave will have serious push. This is also a big, powerful day, best for experts. It’s a week and a half out, so the forecast might shift, but the potential is massive.

To boil it down: the best windows are the mornings of the 28th of August and the 3rd of September. The 28th is the surest bet in the near term, with big, clean waves. The 3rd of September has the potential to be even better, but it’s a longer-range call, so keep an eye on it. The rest of the time, you’ll be waiting more than surfing.

Rusty.

Short Range Forecast

Moderate rain (total 10mm), heaviest on Sun night. Warm (max 27°C on Sun afternoon, min 17°C on Fri night). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 5mm), mostly falling on Wed night. Warm (max 31°C on Mon afternoon, min 18°C on Wed night). Wind will be generally light.

Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
2
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.6
NW
10
1.8
NW
10
1.5
NW
10
1.1
NW
9
0.9
NW
9
0.8
NW
8
0.6
NW
7
0.5
NW
7
0.7
NNE
5
0.3
NNW
7
0.4
N
6
0.5
NNW
4
0.1
NW
13
0.8
NW
4
0.4
NW
11
0.4
NW
10
0.4
NW
9
0.7
NW
9
0.9
WNW
9
1.9
WNW
8
3.5
WNW
9
Wave Graph
Metric surfscale
Energy kJ
469
614
425
203
129
77
43
26
26
9
10
9
7
22
33
35
30
75
127
493
1781
Wind (km/h)
25
WNW
20
NW
5
S
20
E
20
NE
10
SSW
15
ESE
25
ENE
5
SW
15
S
10
N
15
SSW
10
W
15
N
10
SSE
10
WSW
20
N
5
SW
15
WSW
20
NW
15
WSW
Wind State
cross
cross-on
glassy
cross
cross-on
off
cross-off
cross-on
cross-off
off
on
off
cross
on
cross-off
cross-off
on
cross-off
cross-off
cross-on
cross-off
High Tide
11:31AM2.59m
00:25AM2.45m
1:08PM2.56m
2:01AM2.50m
2:30PM2.70m
3:06AM2.67m
3:23PM2.93m
3:50AM2.89m
4:04PM3.17m
4:25AM3.10m
4:38PM3.40m
4:58AM3.29m
5:10PM3.60m
Low Tide
5:56PM1.36m
6:31AM1.44m
7:27PM1.36m
7:56AM1.37m
8:39PM1.20m
8:57AM1.17m
9:31PM0.97m
9:42AM0.93m
10:11PM0.72m
10:20AM0.69m
10:45PM0.49m
10:54AM0.48m
11:18PM0.30m
rain showers
rain showers
clear
clear
clear
rain showers
rain showers
clear
thunderstorm
part cloud
part cloud
clear
part cloud
clear
part cloud
cloud
cloud
rain showers
rain showers
clear
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:20
7:22
7:22
7:24
7:26
7:26
7:28
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:05
9:02
9:01
9:00
8:59
8:57
8:54
 mm
4
1
1
1
3
5
1
6
Temp °C
20
21
21
19
22
22
22
27
24
26
31
24
23
24
22
24
26
22
20
21
19
Feels °C
17
18
20
16
19
20
22
25
26
27
30
26
22
22
22
23
26
24
17
17
15
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 
submit an eyeball surf report

Quick surf report for Mundaka:

join our community of surf reporters

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Mundaka surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


Information about the Mundaka Surf forecast

The above surf forecast table for Mundaka provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Mundaka can be found by selecting the local surf guide option on the grey menu. Our Mundaka surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Mundaka) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Mundaka may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Mundaka is 2 km (1 miles) from Bermeo. If you plan a holiday in Pais Vasco, look for hotels and other accommodation in Bermeo. Bermeo has rooms for a wide range of budgets as well as car hire and transport links.

Nearest locationNearest