Mundaka Surf Break

Lat Long: 43.42° N 2.70° W

Mundaka Surf Forecast and Surf Report

Issued: 7 pm 17 Aug 2026 (local time)

Forecast update in  hr  min

Today's Mundaka sea temperature is
24.4° C
2.8° 

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


Mundaka surf forecast from 17 Aug 2026:

  • Best quality surf: Friday 21 Aug, 5AM (local time) - 5ft (1.6m), 10s period, NW swell with glassy winds.
  • Most powerful swell: Friday 21 Aug, 5AM (local time) - 5ft (1.6m), 10s period, NW swell with 540 kJ wave energy.
  • Next surfable swell (1★+): Thursday 20 Aug, 5AM (local time) - 3ft (0.9m), 12s 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 Thursday (Aug 20) at 5AM. The primary swell is predicted to be 0.9m and 12s period with a secondary swell of 0.1m and 7s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Mundaka in the next 16 days are 1.6m 10s and forecast to arrive on Friday (Aug 21) at 5AM. Winds are predicted to be glassy at the time the swell arrives.

Wave TypeTime (CEST) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Thu 20th Aug)3ft (0.9m) 12s
Best Surf 5AM (Fri 21st Aug)5ft (1.6m) 10s
Most Powerful 5AM (Fri 21st Aug)5ft (1.6m) 10s

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


The Lowdown

G’day, it’s Rusty here. Right, let’s be straight with you. The next couple of weeks here at Mundaka are looking lean for a while, but there is a light at the end of the tunnel, and it’s a proper one if you’re patient.

The forecast starts with a flat spell. From Tuesday the 18th through to the end of next week, it’s just not happening. We’ve got weak, short-period NW windswell and a lot of onshore breeze messing things up. The combined energy is in the low double digits for much of this stretch, like 45 and 49 on Tuesday, dropping to 12 on Wednesday morning. It’s small, it’s jumbled, and there’s nothing worth paddling out for. You’d be wasting your time.

There’s a slight pulse around Thursday the 20th, with the swell pushing to around 4ft on the morning, and energy getting up to 268. But it’s from the NW at 11 seconds, and with a cross-shore wind, it’s still only marginal. Thursday afternoon gets worse with a 12 mph onshore. Friday the 21st brings a bit more size, 5ft to 5ft, energy up to 441 and 510, but it’s onshore and rainy. It’s not going to be clean. Drop it.

The weekend and most of next week are more of the same – small, weak, and messy. We see a clean window Saturday morning the 22nd, with a cross-offshore and 3ft of swell, but it’s only 9 seconds and the energy is down at 156. It’s surfable but very ordinary. Same story again on Friday the 28th, clean but small. The combined energy tells the tale: we’re in the low hundreds or less, which is weak. It’s not what we’re after.

Now, let’s talk about the real deal. The standout is Tuesday the 1st of September, in the morning. The swell bumps up to 5ft from the NW with a 10-second period, and the energy jumps to 400. But the kicker is the wind: light ESE, which is cross-offshore. That’s the clean window we've been waiting for. It’s still a river wave, so it needs the right tide, but conditions will be good. This is the one to circle.

And then, if you can push your patience to the limit, Wednesday the 2nd of September morning is looking special. We’ve got 7ft of NW swell with a 12-second period on the clock – proper groundswell. The energy is a massive 1305, which is strong. Add in a glassy ESE wind, and this is the best forecast of the whole run. This is the set-up that can make Mundaka fire. It’s a couple of weeks out, so don’t book the ferry just yet, but this one is full of promise.

For the second week, just keep it simple: early September is your target. The first week is flat. The second week is the go.

Alright, that’s the long and short of it. Keep an eye on the charts for that first Tuesday, and get ready for the glassy morning after. This is Rusty, signing off.

Short Range Forecast

Mostly dry. Warm (max 23°C on Tue afternoon, min 19°C on Tue night). Wind will be generally light.

Days 5-7 Weather Summary

Heavy rain (total 21mm), heaviest during Fri morning. Warm (max 20°C on Thu night, min 17°C on Sun afternoon). Wind will be generally light.

Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
0
1
0
1
1
0
2
1
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.7
NNW
6
0.6
NNW
8
0.6
NNW
8
0.3
NW
7
0.3
NNW
6
0.2
WNW
8
0.6
NW
13
1.1
NW
11
1.2
NW
11
1.4
NW
11
1.5
NW
10
1.6
NW
10
1.3
NW
10
1
NW
9
0.8
NW
9
0.8
NW
8
0.8
NW
8
0.7
NW
7
0.7
NW
7
Wave Graph
Metric surfscale
Energy kJ
35
45
49
8
6
6
134
268
332
467
441
510
309
156
107
78
69
54
54
Wind (km/h)
5
W
5
NE
10
NE
5
S
5
W
15
N
10
W
5
W
20
N
10
NW
10
NNW
15
NNW
5
WNW
10
ESE
10
NW
15
NNW
10
NNE
0
W
5
WNW
Wind State
glassy
glassy
cross-on
glassy
glassy
on
cross
cross
on
cross-on
on
on
glassy
cross-off
cross-on
on
on
glassy
cross-on
High Tide
8:33PM3.49m
8:53AM3.24m
9:13PM3.17m
9:33AM3.00m
9:57PM2.85m
10:21AM2.77m
10:55PM2.59m
11:31AM2.59m
00:25AM2.45m
1:08PM2.56m
2:01AM2.50m
2:30PM2.70m
3:06AM2.67m
Low Tide
2:40AM0.51m
2:57PM0.64m
3:20AM0.81m
3:43PM0.93m
4:07AM1.10m
4:39PM1.19m
5:07AM1.33m
5:56PM1.36m
6:31AM1.44m
7:27PM1.36m
7:56AM1.37m
8:39PM1.20m
part cloud
part cloud
clear
clear
clear
clear
clear
part cloud
part cloud
light rain
light rain
light rain
part cloud
part cloud
part cloud
mod rain
cloud
light rain
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:18
7:18
7:20
7:20
7:22
7:22
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:10
9:09
9:07
9:07
9:05
9:02
9:01
 mm
4
5
3
6
3
5
Temp °C
22
22
23
22
21
23
22
22
22
20
19
19
19
19
20
18
19
18
18
Feels °C
23
24
23
23
24
24
23
23
22
19
20
21
18
19
20
17
18
20
19
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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.

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