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Surf Forecasts:
Mundaka surf forecast from 14 Aug 2026:
- Most powerful swell: Thursday 20 Aug, 11PM (local time) - 4.5ft (1.4m), 10s period, NNW swell with 378 kJ wave energy.
Best Forecast Surf Conditions for Mundaka this week:
The most powerful waves expected at Mundaka in the next 16 days are 1.4m 10s and forecast to arrive on Thursday (Aug 20) at 11PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Saturday (Aug 15) at 2AM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11PM (Thu 20th Aug) | 4.5ft (1.4m) 10s |
Table - best surf conditions forecast for Mundaka over the next 16 days.
The Lowdown
Alright, listen up. Rusty here. Let's talk about Mundaka.
The next 16 days are a mixed bag, to be honest. We're looking at a lot of small or messy conditions right through the first week, with some real potential building late in the forecast for the experts.
The first real glimmer of hope isn't until Thursday the 20th of August. Thursday morning, it’s clean as a whistle with glassy conditions, and we’ve got a little NW groundswell creeping in. It’s only 2ft, but the period bumps up to 11 seconds, giving it some shape. The combined energy is starting to tick up (119), but honestly, the waves will be small and for the desperate. The rest of that day and the next few are a write-off with onshore junk.
Saturday the 22nd and Sunday the 23rd see some morning relief with cross-offshore and clean winds, but the swell stays tiny and weak, with barely any push behind it.
Then things get interesting. On Thursday the 27th of August, the morning session looks promising. We've got a clean, cross-offshore wind from the SSE, light at 6 mph, and a solid 5ft swell from the NW (290 combined energy). This is the first real taste of something decent. It’s still not epic, but conditions will be good for a wave at the famous river mouth.
But the standout moment, the one to circle on your calendar, is Friday the 28th of August. The early morning is looking like the pick of the entire forecast. We get a 6ft swell from the NW, with a 10-second period, and the combined energy jumps right up (789). The wind is cross-offshore from the WSW at 19 mph, which will keep the face clean. This is proper Mundaka, big and lined up, but that size is for experts only – over 5ft and pushing 7ft is no joke for beginners. It’s going to be a heavy, powerful wave. Just be aware it gets proper ugly in the afternoon when the wind howls.
Overall, the first week plus is a grind with nothing to get excited about. Thursday the 27th is a good warm-up, and Friday the 28th morning is the real deal, but keep your expectations in check for anything beyond that, as the long-range stuff gets messy again.
The water temperature is running a wild 76°F in the first days, which is much warmer than normal for the time of year. You won’t need a thick wetsuit, that’s for sure.
This is Rusty, signing off.
Short Range ForecastMostly dry. Warm (max 24°C on Sun afternoon, min 19°C on Mon morning). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 24°C on Mon afternoon, min 19°C on Tue morning). Wind will be generally light. | |||||||||||||||||||
Fri 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | ||||||||||||||
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 9 | WNW 9 | WNW 9 | NNW 6 | NW 8 | NW 7 | NW 7 | NW 7 | NNW 6 | NW 7 | NNW 6 | NNW 8 | NW 8 | NNW 5 | WNW 8 | NW 10 | NW 12 | NW 10 | NW 10 | NNW 10 |
Wave Graph  | ||||||||||||||||||||
 kJ | 58 | 55 | 53 | 49 | 53 | 65 | 91 | 79 | 26 | 56 | 36 | 44 | 31 | 8 | 6 | 4 | 108 | 120 | 245 | 370 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross | cross-on | cross | cross-on | on | cross-off | glassy | cross-on | glassy | glassy | cross-on | glassy | glassy | cross-on | cross-on | cross-on | on | cross-on |
High Tide | 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 | 10:21AM2.77m | 10:55PM2.59m | |||||||
Low Tide | 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 | 4:39PM1.19m | ||||||||
 |  | |  | | | |  | | | | | | | | | | | |  | |
 | — | — | 7:15 | — | — | 7:16 | — | — | 7:16 | — | — | 7:18 | — | — | 7:18 | — | — | 7:20 | — | — |
 | — | 9:15 | — | — | 9:14 | — | — | 9:13 | — | — | 9:10 | — | — | 9:09 | — | — | 9:07 | — | — | 9:07 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 |
Temp °C | 23 | 23 | 22 | 23 | 23 | 22 | 24 | 23 | 21 | 24 | 23 | 22 | 24 | 23 | 21 | 23 | 22 | 22 | 23 | 22 |
Feels °C | 24 | 23 | 23 | 23 | 24 | 23 | 26 | 25 | 24 | 25 | 24 | 23 | 24 | 23 | 23 | 24 | 23 | 23 | 24 | 23 |
Swell 1 Height (m) Direction Period (s) | WNW 9 | NNW 5 | WNW 9 | WNW 8 | NW 8 | NW 7 | NW 7 | NW 7 | NNW 6 | NW 7 | NNW 6 | NNW 8 | NW 8 | NNW 5 | NNW 5 | NW 8 | NW 12 | NW 10 | NW 10 | NNW 10 |
| kJ | 58 | 16 | 53 | 47 | 53 | 65 | 91 | 79 | 26 | 56 | 36 | 44 | 31 | 8 | 4 | 2 | 108 | 120 | 245 | 370 |
Swell 2 Height (m) Direction Period (s) | — | WNW 9 | NNW 6 | — | NNW 6 | — | — | — | NW 8 | — | NW 10 | NW 9 | WNW 8 | NW 6 | WNW 8 | NW 7 | NNW 7 | N 6 | — | — |
| kJ | — | 55 | 3 | — | 28 | — | — | — | 21 | — | 4 | 3 | 7 | 6 | 6 | 2 | 9 | 30 | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | W 8 | — | — | WNW 8 | NW 7 | NW 10 | W 8 | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | 1 | — | — | 6 | 2 | 4 | 4 | — | — | — |
Wind waves Height (m) Direction Period (s) | NNW 4 | WSW 3 | NW 5 | NNW 6 | — | — | — | — | — | — | — | — | NNE 5 | — | — | NNW 4 | — | NE 4 | NE 4 | — |
| kJ | 12 | 4 | 22 | 49 | — | — | — | — | — | — | — | — | 5 | — | — | 2 | — | 7 | 18 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 213 | 4 | 4 | 109 | 31 | 102 | 2 | 4 | 3 | 109 | 3 | 3 | 523 | 523 | 501 | 519 | 2 | 2 | 60 | 28 |
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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