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Surf Forecasts:
Mundaka surf forecast from 30 Aug 2026:
- Best quality surf: Monday 31 Aug, 2AM (local time) - 4.5ft (1.4m), 8s period, NW swell with cross-offshore winds.
- Most powerful swell: Monday 31 Aug, 5PM (local time) - 6ft (1.8m), 10s period, NW swell with 639 kJ wave energy.
- Next surfable swell (1★+): Monday 31 Aug, 2AM (local time) - 4.5ft (1.4m), 8s 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 Monday (Aug 31) at 2AM. The primary swell is predicted to be 1.4m and 8s period. 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 1.8m 10s and forecast to arrive on Monday (Aug 31) at 5PM. Winds are predicted to be onshore at the time the swell arrives.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Mon 31st Aug) | 4.5ft (1.4m) 8s |
| Best Surf | 2AM (Mon 31st Aug) | 4.5ft (1.4m) 8s |
| Most Powerful | 5PM (Mon 31st Aug) | 6ft (1.8m) 10s |
Table - best surf conditions forecast for Mundaka over the next 16 days.
The Lowdown
Alright, I'm gonna level with you. This is a rough one. We're looking at Mundaka, a world-class left-hand river mouth, and for the next week and a half, the stars are just not aligning. The water is a warm 74°F, which is much warmer than usual for this time of year, so at least you'll be comfortable while you're waiting.
There's a huge gap of poor-to-marginal conditions starting right now. Sunday the 30th and Monday the 31st of August are a total loss with choppy, onshore winds and weak, messy swell. Tuesday the 1st, Wednesday the 2nd, and Thursday the 3rd of September are the same story—tiny, wind-affected waves. Friday the 4th, Saturday the 5th, and Sunday the 6th aren't any better, with the wind shifting all over the place and ruining the shape. It's a brutal stretch of flatness.
The one and only true standout in the whole 16-day window is the morning of Saturday the 5th of September. It's your single shot. We're looking at a glassy, clean morning with a light offshore breeze from the east. The swell is a solid 5ft from the NW with a long 14-second period, packing a moderate 873 units of energy. That's proper groundswell. For a wave like Mundaka, that's a dream. The long period will make it stand up and barrel, but it'll also mean longer lulls between sets, which makes paddling out a bit easier. The swell is over 5ft, so it's getting a bit too big for beginners, and the experts will be out in force—crowds are a known thing here, and on a Saturday morning, you can expect the lineup to be packed.
Everything else after that is a bust. The swell drops off a cliff into the next week, with the 9th of September onward showing tiny, insignificant dribbles. It's a long, dry spell. Mark your calendar for that Saturday morning, 5th of September. That's your window. Otherwise, it's a waiting game.
Rusty.
Short Range ForecastMostly dry. Warm (max 21°C on Mon afternoon, min 17°C on Mon morning). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 23°C on Fri afternoon, min 16°C on Wed night). Wind will be generally light. | ||||||||||||||||||
Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | ||||||||||||||
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 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 9 | NW 8 | NW 8 | NW 8 | NW 10 | NW 9 | WNW 8 | NW 8 | NW 13 | NW 11 | NW 11 | NW 10 | NW 12 |
Wave Graph  | |||||||||||||||||||
 kJ | 273 | 577 | 639 | 469 | 334 | 293 | 199 | 97 | 78 | 39 | 19 | 78 | 39 | 57 | 230 | 391 | 319 | 256 | 503 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | on | glassy | cross | on | cross-on | cross-on | cross-on | cross-off | cross | cross-on | glassy | cross | cross-on | cross | glassy | cross-on | cross-off |
High Tide | 7:03AM3.63m | 7:18PM3.77m | 7:38AM3.56m | 7:55PM3.61m | 8:16AM3.43m | 8:38PM3.39m | 9:01AM3.24m | 9:30PM3.12m | 9:59AM3.02m | 10:41PM2.86m | 11:20AM2.86m | 00:19AM2.74m | |||||||
Low Tide | 00:54AM0.10m | 1:05PM0.18m | 1:28AM0.18m | 1:42PM0.28m | 2:05AM0.35m | 2:24PM0.45m | 2:48AM0.59m | 3:13PM0.68m | 3:41AM0.86m | 4:17PM0.91m | 4:53AM1.09m | 5:45PM1.04m | |||||||
 |  | |  | | | | | |  | | | | | | | | | | |
 | — | 7:31 | — | — | 7:33 | — | — | 7:35 | — | — | 7:35 | — | — | 7:37 | — | — | 7:37 | — | — |
 | 8:50 | — | 8:47 | — | — | 8:46 | — | — | 8:45 | — | — | 8:43 | — | — | 8:40 | — | — | 8:39 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 19 | 21 | 20 | 19 | 20 | 19 | 19 | 20 | 19 | 19 | 22 | 22 | 21 | 23 | 21 | 20 | 21 | 21 |
Feels °C | 18 | 19 | 20 | 20 | 18 | 19 | 19 | 20 | 19 | 19 | 19 | 20 | 21 | 20 | 22 | 22 | 22 | 21 | 22 |
Swell 1 Height (m) Direction Period (s) | NW 8 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 9 | NW 8 | NW 8 | NW 8 | NW 7 | NW 9 | WNW 8 | NW 8 | NW 13 | NW 11 | NW 11 | NW 10 | NW 12 |
| kJ | 273 | 577 | 639 | 469 | 334 | 293 | 199 | 97 | 78 | 39 | 19 | 78 | 39 | 57 | 230 | 391 | 319 | 256 | 503 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | NE 4 | — | — | — | NW 10 | — | NNE 4 | NNE 4 | NW 9 | N 3 | NNE 4 | NNW 13 | NNE 4 |
| kJ | — | — | — | — | — | — | 2 | — | — | — | 16 | — | 3 | 3 | 62 | 1 | 3 | 120 | 6 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | NW 9 | NNW 14 | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | 13 | 19 | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | NE 3 | — | — | N 4 | — | — | NNE 4 | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 2 | — | — | 3 | — | — | 6 | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 60 | 4 | 4 | 2 | 0 | 2 | 2 | 2 | 2 | 2 | 38 | 3 | 2 | 2 | 4 | 60 | 4 | 0 | 2 |
Best forecast wave conditions in Pais Vasco | |||||||||||||||||||
Best forecast wave conditions in Spain (Europe) | |||||||||||||||||||
Header Global | |||||||||||||||||||
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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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