Surf Forecasts:
Mundaka surf forecast from 13 Aug 2026:
- Best quality surf: Saturday 15 Aug, 8PM (local time) - 3ft (0.9m), 6s period, NNW swell with glassy winds.
- Most powerful swell: Thursday 20 Aug, 8AM (local time) - 4.5ft (1.4m), 12s period, NW swell with 590 kJ wave energy.
- Next surfable swell (1★+): Saturday 15 Aug, 8PM (local time) - 3ft (0.9m), 6s period with NNW 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 15) at 8PM. The primary swell is predicted to be 0.9m and 6s period with a secondary swell of 0.6m and 8s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Mundaka in the next 16 days are 1.4m 12s and forecast to arrive on Thursday (Aug 20) at 8AM. 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+) | 8PM (Sat 15th Aug) | 3ft (0.9m) 6s |
| Best Surf | 8PM (Sat 15th Aug) | 3ft (0.9m) 6s |
| Most Powerful | 8AM (Thu 20th Aug) | 4.5ft (1.4m) 12s |
Table - best surf conditions forecast for Mundaka over the next 16 days.
The Lowdown
Right on, let’s get into what’s cooking here. The forecast for Mundaka (Spain) is giving us a long stretch of pretty quiet conditions, but there’s a couple of moments that might get the heart racing. For the first week, things are flat and messy for the most part, so you’re going to be doing a lot of waiting at the cliffside. The real interest, and the only standout I can point to, comes in the second week around Thursday the 20th of August, when a decent pulse of groundswell shows up.
Alright, let’s start at the beginning. From now, the 13th of August, right through until around the 19th, the surf is really disappointing. The swell is tiny, with heights mostly around 0.7ft to 2ft, and the combined swell energy is weak, reading between 13 and 117. The winds are a problem too, often cross-onshore or cross, so it’s chopped up and messy. You’ll get the odd glassy moment on the 18th and 19th when the wind drops to almost nothing, but there’s just no swell to work with. It’s going to be a blank run of about a week with no real surf on offer. The water temperature is 75°, which is much warmer than normal for this time of year, about 5° above the long-term average, so at least the wait will be comfortable.
Now, the one true standout here is when we get to Thursday the 20th of August. That morning, we see a pulse of swell jump up to 6ft coming from the NW. The period is a solid 12 seconds, which makes this a proper groundswell, giving the waves more shape and energy, with longer gaps between sets. The combined swell energy jumps right up to 862 (moderate-to-strong energy). The wind is cross-onshore from the NW at 9 mph, so it’s not perfectly clean, but for this spot, that’s a workable wind direction. That swell direction of NW is right in Mundaka’s sweet spot for its optimum direction. This is the best on offer, but mind you, with the swell over 5ft, it starts to push beyond beginner territory, and the sets will have some push to them. This is an expert wave on its best day, and the crowds are often, so you’ll have company. The quality is still only described as marginal due to questionable tide conditions, so time it right.
After that, the swell backs down again. Friday the 21st still has some 5ft waves, but the energy is lower at 424, and the wind stays cross-onshore. By the following week, the 25th of August, we see another spike with an 8ft wave reading, which is purely for experts at that size, but the combined energy is a thumping 989 (still moderate-to-strong), though the period drops to 9 seconds and it’s a strong onshore wind, making it a messy proposition. The rest of the outlook after that fades into small, choppy conditions again.
So, to wrap it up: sit tight through this first week of flatness. The only real window to look forward to is Thursday the 20th of August, when Mundaka might just have some decent, pushy waves if the tide cooperates. Don’t hold your breath for anything else.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Fri night. Warm (max 25°C on Thu afternoon, min 20°C on Fri morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 25°C on Tue afternoon, min 20°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | |||||||||||||||
AM | 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) | WNW 10 | WNW 10 | WNW 11 | WNW 10 | WNW 9 | WNW 9 | WNW 9 | NNW 6 | NW 7 | NW 8 | NW 8 | NW 7 | NW 8 | NW 7 | NNW 6 | NW 7 | NNW 7 | N 5 | N 4 | WNW 8 | NW 14 |
Wave Graph | |||||||||||||||||||||
37 | 33 | 78 | 64 | 58 | 55 | 53 | 70 | 88 | 90 | 147 | 99 | 67 | 53 | 26 | 22 | 21 | 10 | 6 | 6 | 33 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | cross-on | cross-on | cross | cross | cross-on | cross-on | cross-on | on | cross-off | cross | on | cross-off | glassy | cross-on | glassy | glassy | glassy | cross |
High Tide | 5:56PM4.10m | 6:22AM3.78m | 6:38PM4.11m | 7:01AM3.74m | 7:17PM4.00m | 7:39AM3.63m | 7:56PM3.78m | 8:16AM3.45m | 8:33PM3.49m | 8:53AM3.24m | 9:13PM3.17m | 9:33AM3.00m | 9:57PM2.85m | ||||||||
Low Tide | 11:34AM0.06m | 00:05AM-0.15m | 12:16PM-0.01m | 00:46AM-0.12m | 12:56PM0.02m | 1:25AM0.01m | 1:36PM0.16m | 2:03AM0.23m | 2:16PM0.37m | 2:40AM0.51m | 2:57PM0.64m | 3:20AM0.81m | 3:43PM0.93m | 4:07AM1.10m | |||||||
7:11 | — | — | 7:13 | — | — | 7:15 | — | — | 7:16 | — | — | 7:16 | — | — | 7:18 | — | — | 7:18 | — | — | |
— | — | 9:16 | — | — | 9:15 | — | — | 9:14 | — | — | 9:13 | — | — | 9:10 | — | — | 9:09 | — | — | 9:07 | |
mm | — | — | — | — | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 4 |
Temp °C | 24 | 25 | 23 | 22 | 24 | 23 | 22 | 23 | 22 | 22 | 23 | 22 | 21 | 23 | 23 | 23 | 25 | 24 | 23 | 24 | 22 |
Feels °C | 26 | 26 | 23 | 23 | 25 | 24 | 23 | 24 | 24 | 23 | 24 | 23 | 23 | 25 | 25 | 25 | 26 | 25 | 25 | 25 | 24 |
Swell 1 Height (m) Direction Period (s) | WNW 10 | WNW 10 | WNW 11 | WNW 10 | WNW 9 | WNW 9 | NNW 6 | NNW 6 | NW 7 | NW 8 | NW 8 | NW 7 | NW 8 | NW 7 | NNW 6 | NW 7 | NNW 7 | N 5 | N 4 | WNW 8 | N 4 |
37 | 33 | 78 | 64 | 58 | 55 | 36 | 70 | 88 | 90 | 147 | 99 | 67 | 53 | 26 | 22 | 21 | 10 | 5 | 6 | 8 | |
Swell 2 Height (m) Direction Period (s) | NNW 8 | NW 12 | — | N 4 | — | — | WNW 9 | WNW 8 | — | — | NNW 7 | — | NNW 7 | — | NW 8 | WNW 8 | WNW 8 | WNW 7 | WNW 8 | NNW 6 | NW 14 |
6 | 23 | — | 1 | — | — | 53 | 47 | — | — | 68 | — | 5 | — | 15 | 7 | 6 | 5 | 6 | 4 | 33 | |
Swell 3 Height (m) Direction Period (s) | NNW 3 | N 4 | NW 7 | — | — | — | — | — | — | — | — | — | — | — | W 8 | — | — | NW 7 | NW 7 | NW 9 | NW 9 |
1 | 1 | 2 | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | 2 | 2 | 3 | 3 | |
Wind waves Height (m) Direction Period (s) | — | — | WNW 3 | NW 4 | NW 4 | NW 5 | — | — | — | — | — | — | — | — | — | — | NE 2 | — | — | N 4 | — |
— | — | 3 | 4 | 12 | 25 | — | — | — | — | — | — | — | — | — | — | 1 | — | — | 2 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 56 | 108 | 4 | 49 | 108 | 25 | 4 | 2 | 49 | 49 | 60 | 0 | 23 | 109 | 3 | 101 | 534 | 501 | 506 | 480 | 25 |
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.











