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Surf Forecasts:
Mundaka surf forecast from 20 Aug 2026:
- Best quality surf: Friday 21 Aug, 11PM (local time) - 5ft (1.6m), 10s period, NW swell with glassy winds.
- Most powerful swell: Friday 21 Aug, 8AM (local time) - 6ft (1.8m), 10s period, NW swell with 663 kJ wave energy.
- Next surfable swell (1★+): Friday 21 Aug, 11PM (local time) - 5ft (1.6m), 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 Friday (Aug 21) at 11PM. The primary swell is predicted to be 1.6m 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 1.8m 10s and forecast to arrive on Friday (Aug 21) at 8AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Wednesday (Aug 26) at 8AM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Fri 21st Aug) | 5ft (1.6m) 10s |
| Best Surf | 11PM (Fri 21st Aug) | 5ft (1.6m) 10s |
| Most Powerful | 8AM (Fri 21st Aug) | 6ft (1.8m) 10s |
Table - best surf conditions forecast for Mundaka over the next 16 days.
The Lowdown
Hey, Rusty here. Let's break down the next couple of weeks for Mundaka.
We've got a solid campaign of swell on the charts, but the wind and conditions are really going to dictate whether it's worth a paddle. This river mouth spot is picky, so you'll need to be smart.
The first session worth a mention is Thursday morning, August 20th, but it's a rough one – storm risk, cross-on wind, and choppy conditions on a 4-foot NW swell. The quality is just not there. This poor run of onshore, messy waves carries on through Friday and Saturday.
We finally get some cleaner skies on Sunday morning, the 23rd of August, but the swell is tiny at 2 feet with weak energy.
The first real standout is Thursday morning, the 27th of August. We’ve got a clean 5-foot NW swell, 8-second period, and the wind is offshore and glassy. The energy reading is a solid 334, and conditions are set to be good. This is a morning mission for the experienced crew, as the onshore winds will ruin the afternoon session.
After a lull, Saturday morning, the 29th of August, is another good call. The swell is a clean 5 feet from the NW, the wind is light, and the energy is strong at 351.
But the absolute best sessions are Sunday morning, the 30th of August, and especially Tuesday morning, the 1st of September. Sunday the 30th gives us a glassy morning, a 4-foot NW swell, and clean energy. It’s a beautiful setup.
The one to circle on your calendar is Tuesday morning, the 1st of September. This is the only call for "very good" conditions in the whole forecast. The wind is glassy, the swell is a solid 6 feet from the NW with a very long 11-second period – that’s proper groundswell. The combined energy is a strong 671. For a point break like Mundaka, this is a recipe for epic, powerful, lined-up waves. This is for experts only; the size and power will be too much for beginners. Expect a crowd, but for good reason.
After that, the swell fades and winds turn messy, leaving you with small, onshore-chopped surf to close out the period.
Keep an eye on those tides.
Rusty.
Short Range ForecastHeavy rain (total 20mm), heaviest during Thu night. Warm (max 23°C on Sat afternoon, min 17°C on Sat morning). Wind will be generally light. | Days 4-6 Weather SummarySome drizzle, heaviest during Sun night. Warm (max 28°C on Sun afternoon, min 20°C on Sun morning). Winds increasing (calm on Sun night, fresh winds from the SSW by Mon night). | ||||||||||||||||||||
Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | |||||||||||||||
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) | NW 11 | NW 10 | NW 11 | NW 10 | NW 10 | NW 10 | NW 9 | NW 9 | NW 8 | NNW 7 | NE 4 | NNE 5 | NNW 7 | NNE 6 | N 5 | NW 13 | NW 8 | NW 8 | WNW 8 | NW 6 | WNW 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 382 | 328 | 538 | 602 | 520 | 388 | 179 | 129 | 75 | 36 | 28 | 19 | 4 | 10 | 2 | 7 | 129 | 192 | 114 | 137 | 208 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | cross | cross-on | off | cross | cross-on | cross-off | cross-off | cross-on | off | cross-off | cross-on | off | cross-off | cross-on | cross-off | off | cross | cross-off |
High Tide | 10:21AM2.77m | 10:55PM2.59m | 11:31AM2.59m | 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 | |||||||
Low Tide | 4:39PM1.19m | 5:07AM1.33m | 5:56PM1.36m | 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 | ||||||||
 |  |  | | |  |  | | | | |  |  | |  | |  | | | |  | |
 | 7:20 | — | — | 7:20 | — | — | 7:22 | — | — | 7:22 | — | — | 7:24 | — | — | 7:26 | — | — | 7:26 | — | — |
 | — | — | 9:07 | — | — | 9:05 | — | — | 9:02 | — | — | 9:01 | — | — | 9:00 | — | 8:59 | — | — | 8:57 | — |
mm | 1 | 4 | 10 | 4 | 1 | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | 1 | — |
Temp °C | 21 | 20 | 20 | 19 | 22 | 21 | 19 | 23 | 22 | 23 | 28 | 25 | 24 | 26 | 24 | 24 | 24 | 22 | 26 | 24 | 22 |
Feels °C | 21 | 19 | 19 | 18 | 20 | 20 | 16 | 20 | 20 | 23 | 27 | 27 | 26 | 26 | 22 | 23 | 23 | 22 | 22 | 20 | 21 |
Swell 1 Height (m) Direction Period (s) | NW 11 | NW 10 | NW 11 | NW 10 | NW 10 | NW 10 | NW 9 | NW 9 | NNE 5 | NNW 7 | NW 7 | NNE 5 | NNE 4 | NNE 6 | NW 3 | W 3 | NW 8 | NW 8 | WNW 8 | — | WNW 8 |
| kJ | 382 | 328 | 538 | 602 | 520 | 388 | 179 | 129 | 47 | 36 | 26 | 19 | 4 | 10 | 2 | 1 | 129 | 192 | 114 | — | 208 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | NW 8 | NNE 5 | W 10 | NW 7 | NNW 7 | NW 7 | N 5 | NW 13 | NW 13 | — | NW 10 | — | NW 13 |
| kJ | — | — | — | — | — | — | — | — | 75 | 17 | 2 | 12 | 4 | 2 | 2 | 7 | 6 | — | 35 | — | 7 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | W 8 | W 8 | ENE 4 | W 3 | W 9 | NW 6 | N 5 | — | — | — | — | NW 11 |
| kJ | — | — | — | — | — | — | — | — | — | 1 | 1 | 6 | 1 | 1 | 2 | 1 | — | — | — | — | 5 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | ENE 3 | ENE 4 | — | — | NE 4 | — | — | W 3 | — | — | NE 3 | — | SSW 3 | NW 6 | — |
| kJ | — | — | — | — | — | — | 3 | 32 | — | — | 28 | — | — | 1 | — | — | 4 | — | 1 | 137 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 22 | 60 | 25 | 43 | 60 | 0 | 22 | 2 | 0 | 3 | 80 | 75 | 345 | 324 | 260 | 203 | 2 | 0 | 0 | 25 | 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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