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Surf Forecasts:
Mundaka surf forecast from 19 Aug 2026:
- Best quality surf: Thursday 20 Aug, 8AM (local time) - 4ft (1.2m), 12s period, NW swell with cross-offshore winds.
- Most powerful swell: Wednesday 26 Aug, 11PM (local time) - 8ft (2.5m), 9s period, NW swell with 989 kJ wave energy.
- Next surfable swell (1★+): Thursday 20 Aug, 2AM (local time) - 2ft (0.6m), 13s 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 2AM. The primary swell is predicted to be 0.6m and 13s period with a secondary swell of 0.6m and 4s. 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 2.5m 9s and forecast to arrive on Wednesday (Aug 26) at 11PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Tuesday (Aug 25) at 8AM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Thu 20th Aug) | 2ft (0.6m) 13s |
| Best Surf | 8AM (Thu 20th Aug) | 4ft (1.2m) 12s |
| Most Powerful | 11PM (Wed 26th Aug) | 8ft (2.5m) 9s |
Table - best surf conditions forecast for Mundaka over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s talk about what’s on the menu for Mundaka.
This is a slow start, I’m not gonna lie. The first week is pretty grim, with a whole lot of wind and chop making a mess of things. For a spot that needs everything just right, we’re looking at a lot of frustrating days. The water is sitting at 76°, which is much warmer than normal for this time of year, so at least you won’t be shivering while you’re sitting there waiting for a decent wave.
The first real glimmer of hope comes on the morning of Wednesday the 28th of August. We’ve got a clean 5ft groundswell from the NW, with a period of 10 seconds and a cross-offshore wind from the ESE. The energy is decent, sitting at 530 (moderate), and the conditions are going to be clean. That morning session is the standout of the first week, and it’s your best bet for a proper wave.
After that, things get messy again until we hit the morning of Monday the 1st of September. Another clean morning, this time with a 6ft NW swell at 10 seconds, and a light cross-offshore breeze. The wave energy is 531 (moderate). It’s a strong option, but it’s still a week and a half away, so keep an eye on it.
Then, the real standout for the whole 16-day window is the morning of Wednesday the 2nd of September. Glassy conditions, a 7ft NW swell at 8 seconds, and the wind is from the SSE at just 3 mph. The wave energy is 582 (moderate). This is the one to circle on the calendar. That size is getting into the expert zone, but for a river mouth like Mundaka, that’s exactly what you want. With the wind completely off and glassy, it’s going to be a session to remember.
There’s a big swell on the morning of the 31st of August, with 10ft from the NW at 10 seconds and energy hitting 1695 (strong). But the cross-shore wind is going to chop it up. That’s more of a kite-surfing setup than a clean paddle wave.
So, to sum it up: the morning of the 28th of August is your early win, and the morning of the 2nd of September is the big one. The rest of the time, you’re either dealing with poor conditions or waiting for the tide and wind to line up. It’s been a rough patch, but it won’t stay this way forever.
Rusty.
Short Range ForecastModerate rain (total 13mm), heaviest on Thu night. Warm (max 23°C on Sat afternoon, min 18°C on Fri morning). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 5mm), mostly falling on Sun night. Warm (max 33°C on Mon afternoon, min 19°C on Sat night). Winds increasing (calm on Sat night, fresh winds from the SSW by Mon night). | ||||||||||||||||||
Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | ||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||
Wave Height (m) Direction Period (s) | NW 13 | NW 11 | NW 10 | NW 11 | NW 10 | NW 10 | NW 10 | NW 9 | NW 9 | NW 8 | NNW 7 | NE 4 | NNE 5 | N 6 | N 6 | N 5 | N 5 | NNW 12 | NW 7 |
Wave Graph  | |||||||||||||||||||
 kJ | 134 | 382 | 322 | 538 | 602 | 509 | 388 | 206 | 148 | 91 | 37 | 39 | 42 | 35 | 32 | 8 | 2 | 14 | 65 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | cross-on | cross | cross | cross-on | cross | cross | cross-on | cross-off | cross-off | cross-on | cross-off | off | cross-on | off | cross-off | on | cross-off |
High Tide | 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 | 3:23PM2.93m | 3:50AM2.89m | 4:04PM3.17m | 4:25AM3.10m | ||||||
Low Tide | 4:07AM1.10m | 4:39PM1.19m | 5:07AM1.33m | 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 | |||||||
 | |  |  | | |  |  | |  | |  |  |  | | | | | | |
 | — | 7:20 | — | — | 7:20 | — | — | 7:22 | — | — | 7:22 | — | — | 7:24 | — | — | 7:26 | — | — |
 | 9:07 | — | — | 9:07 | — | — | 9:05 | — | — | 9:02 | — | — | 9:01 | — | — | 9:00 | — | 8:59 | — |
mm | 1 | 1 | 2 | 6 | 2 | 1 | — | — | — | 2 | 1 | — | 2 | — | — | — | — | — | — |
Temp °C | 22 | 21 | 19 | 20 | 20 | 21 | 21 | 19 | 23 | 22 | 22 | 27 | 25 | 25 | 33 | 27 | 24 | 25 | 23 |
Feels °C | 22 | 21 | 18 | 19 | 17 | 18 | 20 | 16 | 20 | 20 | 23 | 25 | 27 | 25 | 29 | 27 | 22 | 24 | 24 |
Swell 1 Height (m) Direction Period (s) | NW 13 | NW 11 | NW 10 | NW 11 | NW 10 | NW 10 | NW 10 | NW 9 | NW 9 | NE 5 | NE 5 | NW 7 | NNE 5 | N 6 | W 10 | N 5 | SSE 4 | NNW 12 | NW 7 |
| kJ | 134 | 382 | 322 | 538 | 602 | 509 | 388 | 206 | 148 | 39 | 20 | 26 | 42 | 35 | 2 | 8 | 2 | 14 | 65 |
Swell 2 Height (m) Direction Period (s) | NW 4 | — | — | — | — | — | — | — | — | NW 8 | NNW 7 | W 8 | NW 7 | W 9 | — | NNW 6 | N 5 | NW 8 | NW 11 |
| kJ | 11 | — | — | — | — | — | — | — | — | 91 | 37 | 1 | 12 | 1 | — | 4 | 2 | 3 | 29 |
Swell 3 Height (m) Direction Period (s) | NNW 7 | — | — | — | — | — | — | — | — | — | W 8 | — | W 9 | W 10 | — | NW 9 | NE 4 | — | — |
| kJ | 5 | — | — | — | — | — | — | — | — | — | 1 | — | 2 | 2 | — | 3 | 1 | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | ENE 2 | NE 4 | — | — | NE 4 | — | — | N 6 | — | SW 3 | N 3 | — |
| kJ | — | — | — | — | — | — | — | 1 | 24 | — | — | 39 | — | — | 32 | — | 2 | 8 | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 570 | 0 | 60 | 49 | 25 | 49 | 60 | 0 | 20 | 2 | 23 | 2 | 2 | 2 | 3 | 368 | 315 | 60 | 324 |
Best forecast wave conditions in Pais Vasco | |||||||||||||||||||
Best forecast wave conditions in Spain (Europe) | |||||||||||||||||||
Header Global | |||||||||||||||||||
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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.
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