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Surf Forecasts:
Mundaka surf forecast from 21 Aug 2026:
- Best quality surf: Saturday 22 Aug, 2AM (local time) - 5ft (1.5m), 10s period, NW swell with glassy winds.
- Most powerful swell: Thursday 27 Aug, 5PM (local time) - 7ft (2.2m), 8s period, WNW swell with 682 kJ wave energy.
- Next surfable swell (1★+): Saturday 22 Aug, 2AM (local time) - 5ft (1.5m), 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 Saturday (Aug 22) at 2AM. The primary swell is predicted to be 1.5m 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 2.2m 8s and forecast to arrive on Thursday (Aug 27) at 5PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 3s period and expected on Monday (Aug 24) at 5AM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Sat 22nd Aug) | 5ft (1.5m) 10s |
| Best Surf | 2AM (Sat 22nd Aug) | 5ft (1.5m) 10s |
| Most Powerful | 5PM (Thu 27th Aug) | 7ft (2.2m) 8s |
Table - best surf conditions forecast for Mundaka over the next 16 days.
The Lowdown
Alright, Rusty here, looking at the Basque waters. The next week or so is looking pretty grim, with a lot of messy, small, or onshore conditions. The first real chance for a wave doesn't come until Monday the 28th, so there's a big gap of surf-less days to start. The water is sitting at 76°F, which is much warmer than usual for this time of year.
The first decent window opens on the morning of Monday the 28th of August. We've got a light cross-offshore wind from the WSW, cleaning up the 6ft NW swell, with a 9-second period and moderate energy. It's not a world-beater, but it's the first clean look we get. The real standout, and the one you want to be planning for, is the morning of Thursday the 3rd of September. The swell is bumping up to 7ft out of the WNW, with moderate to strong energy, and the wind is a light cross-offshore from the WSW, keeping it glassy. That's a proper Mundaka day. At that size, it's strictly for experts. The spot is a river mouth, it's consistent, and it's exposed to a NW swell, which is perfect. It's also often packed, so expect a crowd.
Thursday afternoon the 3rd stays big at 7ft, but the wind goes light onshore, so it's not as clean. Then Friday the 4th of September morning looks unreal – glassy calm with a 5ft NW swell, another clean session. The swell eases up after that, with some surfable but ordinary conditions rolling through the 5th and 6th. The short period (8 seconds) on the bigger days means the waves will be a bit steeper and more powerful, but they'll lack that long, drawn-out feel of a groundswell.
So, the first week is a write-off. The absolute standout is the morning of the 3rd of September – that's the one to chase if you've got the chops.
Rusty.
Short Range ForecastLight rain (total 3mm), mostly falling on Sun night. Warm (max 31°C on Mon afternoon, min 17°C on Sat morning). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 5mm), mostly falling on Wed afternoon. Warm (max 27°C on Wed afternoon, min 19°C on Wed night). Wind will be generally light. | ||||||||||||||||||
Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | ||||||||||||||
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 10 | NW 9 | NW 9 | NW 8 | NNW 7 | NW 7 | NE 5 | NNE 4 | N 5 | NNW 6 | NW 13 | NNW 12 | NW 8 | WNW 7 | NW 9 | NW 9 | NW 8 | WNW 8 | NW 8 |
Wave Graph  | |||||||||||||||||||
 kJ | 425 | 206 | 129 | 77 | 36 | 26 | 24 | 7 | 8 | 4 | 7 | 14 | 98 | 42 | 21 | 19 | 95 | 682 | 226 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross | cross-on | off | cross-off | cross-on | glassy | off | cross-on | off | cross-off | on | cross-off | cross-off | cross-off | cross-off | cross | cross-on | off |
High Tide | 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 | 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 | |||||||
 | | |  | | | |  |  |  | | |  | |  | |  | |  | |
 | — | 7:22 | — | — | 7:22 | — | — | 7:24 | — | — | 7:26 | — | — | 7:26 | — | — | 7:28 | — | — |
 | 9:05 | — | — | 9:02 | — | — | 9:01 | — | — | 9:00 | — | 8:59 | — | — | 8:57 | — | — | 8:54 | — |
mm | — | — | — | 1 | — | — | 2 | — | — | — | — | — | — | — | 1 | 2 | 2 | — | — |
Temp °C | 21 | 19 | 23 | 22 | 24 | 27 | 24 | 26 | 31 | 25 | 25 | 25 | 22 | 25 | 27 | 22 | 20 | 21 | 21 |
Feels °C | 19 | 17 | 20 | 20 | 25 | 26 | 25 | 25 | 27 | 25 | 24 | 24 | 22 | 25 | 27 | 23 | 16 | 16 | 20 |
Swell 1 Height (m) Direction Period (s) | NW 10 | NW 9 | NW 9 | NE 5 | NNW 7 | NW 7 | NE 5 | NNE 4 | N 5 | N 5 | NW 5 | NNW 12 | NW 8 | WNW 7 | WNW 6 | WNW 5 | — | — | NW 8 |
| kJ | 425 | 206 | 129 | 38 | 36 | 26 | 24 | 7 | 8 | 2 | 1 | 14 | 98 | 42 | 13 | 10 | — | — | 226 |
Swell 2 Height (m) Direction Period (s) | — | — | — | NW 8 | NE 5 | W 12 | NW 7 | NNW 7 | — | NNW 3 | — | — | NE 4 | NW 10 | NW 9 | NW 9 | — | — | — |
| kJ | — | — | — | 77 | 13 | 3 | 12 | 5 | — | 1 | — | — | 3 | 24 | 21 | 19 | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | W 8 | W 8 | W 9 | — | NW 10 | NNW 6 | NW 13 | NW 8 | — | NE 3 | — | NNE 3 | — | — | — |
| kJ | — | — | — | — | 1 | 1 | 2 | — | 4 | 4 | 7 | 3 | — | 2 | — | 1 | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | NE 4 | — | — | NE 4 | — | — | — | — | — | NNE 3 | NE 4 | — | NE 3 | — | NW 8 | WNW 8 | — |
| kJ | — | — | 24 | — | — | 23 | — | — | — | — | — | 8 | 3 | — | 2 | — | 95 | 682 | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 20 | 2 | 0 | 3 | 134 | 75 | 324 | 256 | 256 | 455 | 226 | 0 | 2 | 91 | 49 | 277 | 494 | 0 |
Best forecast wave conditions in Pais Vasco | |||||||||||||||||||
Best forecast wave conditions in Spain (Europe) | |||||||||||||||||||
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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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