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Surf Forecasts:
Mundaka surf forecast from 16 Aug 2026:
- Best quality surf: Thursday 20 Aug, 11PM (local time) - 4.5ft (1.4m), 10s period, NW swell with glassy winds.
- Most powerful swell: Friday 21 Aug, 2AM (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 0.2m 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 2AM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Thu 20th Aug) | 3ft (0.9m) 12s |
| Best Surf | 11PM (Thu 20th Aug) | 4.5ft (1.4m) 10s |
| Most Powerful | 2AM (Fri 21st Aug) | 5ft (1.6m) 10s |
Table - best surf conditions forecast for Mundaka over the next 16 days.
The Lowdown
Hey, it's Rusty. Alright, let's be straight with you – the 16-day window for Mundaka is a real tough one. There's a massive gap of no decent surf right at the start, running from now, Sunday 16th August, all the way through to the morning of Friday 21st August. You're looking at a solid five days of flat, weak, or messy conditions. The water temp is sitting at a toasty 76° right now, which is much warmer than normal for this time of year, but that's about the only thing going for it.
Things get a little interesting from Friday 21st August, but it's still just a slight uptick. On Friday morning we see the wave energy finally climb into triple figures (441), with a 5ft swell from the NW at 10 seconds, but the wind is onshore. The model’s calling it “marginal” and I'd agree – it's not a paddle-out yet. Saturday 22nd has a clean cross-shore wind from the East in the morning with 4ft NW swell, but the period drops to 9 seconds and the energy's moderate (178). It's a maybe, but nothing to write home about.
The real standout *potential* shows up way down the line. Look at Sunday 30th August – a proper NW groundswell arrives, 5ft at 12 seconds, with strong wave energy (660). The wind is light and cross-shore in the morning and onshore in the afternoon. For a river-mouth wave like Mundaka, that long-period, NW groundswell is exactly what you want, but the onshore wind in the afternoon will blow it out. The truth is, the best moment in the whole forecast is the following Monday, 31st August. The morning of Monday 31st has a glassy, calm wind, with a 4ft NNW swell at a very long 11 seconds and solid energy (411). It's the only time in the whole 16 days the model gives a "good surf conditions" call. That is your window. Don't expect it to be busy – the crowds at Mundaka can be heavy, but that morning clean-up could be worth the wait.
Everything before that is a write-off. We'll call it as we see it. This setup looks more interesting for a kite than a paddle for most of the fortnight, except for that one golden window on the 31st. Keep your eyes peeled on the charts for that Monday.
Rusty
Short Range ForecastMostly dry. Warm (max 23°C on Sun afternoon, min 19°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 8mm), mostly falling on Thu morning. Warm (max 23°C on Wed afternoon, min 18°C on Fri night). Wind will be generally light. | |||||||||||||||||||
Sun 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | ||||||||||||||
PM | 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 8 | NW 8 | NNW 6 | NNW 7 | NNW 6 | NNW 8 | NW 8 | NNW 5 | WNW 8 | WNW 8 | NW 12 | NW 11 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 9 | NW 9 | NW 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 60 | 46 | 26 | 66 | 25 | 45 | 31 | 10 | 6 | 6 | 124 | 198 | 208 | 540 | 441 | 348 | 296 | 176 | 126 | 65 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross | cross-on | on | glassy | glassy | cross-on | glassy | cross-on | on | cross | cross-on | on | cross-on | on | on | glassy | cross | cross-on | cross-off |
High Tide | 7:56PM3.78m | 8:16AM3.45m | 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 | |||||||
Low Tide | 2:03AM0.23m | 2:16PM0.37m | 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 | ||||||||
 |  |  | | | | |  | | |  |  | |  | | | | | | | |
 | — | — | 7:16 | — | — | 7:18 | — | — | 7:18 | — | — | 7:20 | — | — | 7:20 | — | — | 7:22 | — | — |
 | — | 9:13 | — | — | 9:10 | — | — | 9:09 | — | — | 9:07 | — | — | 9:07 | — | — | 9:05 | — | — | 9:02 |
mm | — | — | — | — | — | — | — | — | — | — | 1 | 4 | 1 | — | 1 | 1 | — | — | — | 2 |
Temp °C | 23 | 22 | 22 | 23 | 22 | 21 | 23 | 22 | 22 | 23 | 22 | 20 | 20 | 20 | 20 | 20 | 20 | 19 | 21 | 21 |
Feels °C | 25 | 23 | 23 | 24 | 24 | 24 | 23 | 23 | 24 | 24 | 22 | 22 | 20 | 20 | 20 | 20 | 20 | 17 | 19 | 21 |
Swell 1 Height (m) Direction Period (s) | NW 8 | NW 8 | NNW 6 | NNW 7 | NNW 6 | NNW 8 | NW 8 | NNW 5 | NNW 5 | NNW 5 | NW 12 | NW 11 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 9 | NW 9 | NW 8 |
| kJ | 60 | 46 | 26 | 66 | 25 | 45 | 31 | 10 | 4 | 5 | 124 | 198 | 208 | 540 | 441 | 348 | 296 | 176 | 126 | 65 |
Swell 2 Height (m) Direction Period (s) | — | NNW 7 | NW 8 | NNW 6 | NW 8 | — | N 6 | NW 6 | WNW 8 | WNW 8 | NW 5 | NNW 6 | — | — | — | — | — | W 11 | W 11 | NE 5 |
| kJ | — | 30 | 21 | 23 | 15 | — | 10 | 7 | 6 | 6 | 6 | 12 | — | — | — | — | — | 2 | 2 | 17 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | NW 10 | — | — | WNW 8 | NW 7 | NW 11 | WNW 8 | — | — | — | — | — | — | — | — | W 10 |
| kJ | — | — | — | — | 4 | — | — | 6 | 2 | 5 | 6 | — | — | — | — | — | — | — | — | 2 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | NNW 4 | — | W 2 | N 5 | — | — | — | — | — | NE 4 | — |
| kJ | — | — | — | — | — | — | — | — | — | 3 | — | 1 | 36 | — | — | — | — | — | 12 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 2 | 4 | 102 | 2 | 3 | 3 | 519 | 653 | 438 | 535 | 4 | 2 | 2 | 28 | 2 | 2 | 0 | 2 | 2 | 0 |
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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