
Surf Forecasts:
Mundaka surf forecast from 4 Sep 2026:
- Best quality surf: Saturday 5 Sep, 8PM (local time) - 5ft (1.6m), 13s period, NW swell with cross-offshore winds.
- Most powerful swell: Saturday 5 Sep, 11PM (local time) - 5.5ft (1.7m), 13s period, NNW swell with 998 kJ wave energy.
- Next surfable swell (1★+): Saturday 5 Sep, 2AM (local time) - 2.5ft (0.8m), 9s 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 (Sep 05) at 2AM. The primary swell is predicted to be 0.8m and 9s 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 1.7m 13s and forecast to arrive on Saturday (Sep 05) at 11PM. Winds are predicted to be glassy at the time the swell arrives.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Sat 5th Sep) | 2.5ft (0.8m) 9s |
| Best Surf | 8PM (Sat 5th Sep) | 5ft (1.6m) 13s |
| Most Powerful | 11PM (Sat 5th Sep) | 5.5ft (1.7m) 13s |
Table - best surf conditions forecast for Mundaka over the next 16 days.
The Lowdown
Alright, let’s get into it. This is Rusty, and I’m looking at the next couple of weeks here at Mundaka. Honestly, it’s a bit of a mixed bag, and you’ll need to be patient. The first proper chance of anything decent isn’t until the 10th of September, so there’s a bit of a dry spell to sit through.
Right now, into the weekend, forget it. We’ve got a weak, jumbled sea with a lot of cross-shore wind. The energy is just not there, and the conditions are messy. You’d be wasting your time paddling out. That continues through the start of the week, with the swell dropping off and the wind playing games. It’s a real nothing period.
The standout window, and the only real one to get excited about, is the morning of Thursday, the 10th of September. That’s when the stars align briefly. We’ve got a clean 5ft northwest groundswell rolling in, with a period of 11 seconds. The wind is glassy, dead calm, which is a major win for a spot like this. The wave energy is moderate (476), and the swell direction is straight out of the northwest, which is exactly what this river mouth wants. The tide will be a factor, but if you get the push right, Mundaka will be offering up some of those long, bowling lefts. This is expert territory at the best of times, and with that 5ft of clean NW swell, it’s going to be a proper session for the crew who know what they’re doing. It’s the best on offer, no question.
After that, it’s back to the waiting game. The wind swings onshore again, and the swell gets thrown around by strong northerly breezes. There’s a bit of a long-period pulse (16 seconds) on the 15th, but it’s blown out by a fresh 15-18 mph cross-onshore wind, making it a lumpy, choppy mess. That’s not a paddle session; that’s more for the kite crew if anything.
Even into the final week of the forecast, the 18th and 19th of September, you get a little bit of clean glass again, but the swell is tiny, just 2ft. It’s surfable, but very ordinary. Not worth the hype.
So, bottom line: save your energy for the 10th of September morning. That’s the one. The rest of the run is a lot of waiting, with a lot of poor conditions. Keep an eye on it, but don’t hold your breath.
Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Sun morning, min 18°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 5mm), mostly falling on Tue night. Warm (max 21°C on Tue afternoon, min 15°C on Thu morning). Wind will be generally light. | ||||||||||||||||||
Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | ||||||||||||||
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 9 | NW 11 | NW 13 | NW 13 | NW 12 | NW 11 | NW 10 | NW 15 | NW 13 | NW 12 | WNW 11 | WNW 11 | NW 9 | NNW 12 | NW 13 | NW 12 | NW 11 | NNW 11 | NW 10 |
Wave Graph | |||||||||||||||||||
88 | 194 | 769 | 864 | 551 | 332 | 163 | 112 | 212 | 264 | 211 | 196 | 192 | 417 | 936 | 671 | 476 | 375 | 188 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross | cross-on | cross-off | cross | cross | cross | cross | on | cross | cross | cross-on | on | on | on | off | glassy | cross-on | cross-off |
High Tide | 10:41PM2.86m | 11:20AM2.86m | 00:19AM2.74m | 1:00PM2.90m | 1:55AM2.86m | 2:23PM3.15m | 3:04AM3.11m | 3:24PM3.47m | 3:57AM3.38m | 4:13PM3.76m | 4:41AM3.60m | 4:55PM3.96m | |||||||
Low Tide | 4:53AM1.09m | 5:45PM1.04m | 6:25AM1.16m | 7:21PM0.96m | 7:53AM1.01m | 8:38PM0.70m | 8:58AM0.73m | 9:35PM0.39m | 9:50AM0.44m | 10:22PM0.13m | 10:34AM0.20m | 11:03PM-0.05m | |||||||
— | 7:37 | — | — | 7:39 | — | — | 7:39 | — | — | 7:41 | — | — | 7:41 | — | — | 7:43 | — | — | |
8:40 | — | 8:39 | — | — | 8:37 | — | — | 8:36 | — | — | 8:34 | — | — | 8:32 | — | — | 8:30 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 1 | 1 | — | — | — | — |
Temp °C | 21 | 20 | 24 | 25 | 26 | 25 | 22 | 20 | 22 | 20 | 20 | 21 | 20 | 19 | 21 | 20 | 18 | 21 | 20 |
Feels °C | 22 | 20 | 23 | 26 | 26 | 24 | 22 | 21 | 23 | 22 | 20 | 20 | 21 | 19 | 21 | 20 | 18 | 20 | 20 |
Swell 1 Height (m) Direction Period (s) | NW 9 | NW 11 | NW 13 | NW 13 | NW 12 | NW 11 | NW 10 | NW 6 | NW 13 | NW 12 | WNW 11 | WNW 11 | NW 9 | NNW 12 | NW 13 | NW 12 | NW 11 | NNW 11 | NW 10 |
88 | 194 | 769 | 864 | 551 | 332 | 163 | 40 | 212 | 264 | 211 | 196 | 192 | 417 | 936 | 671 | 476 | 375 | 188 | |
Swell 2 Height (m) Direction Period (s) | — | NNW 14 | — | NNE 5 | N 5 | — | NW 18 | NW 9 | NW 9 | — | — | — | NW 12 | NW 9 | — | — | — | — | — |
— | 80 | — | 17 | 12 | — | 13 | 83 | 64 | — | — | — | 39 | 208 | — | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | NW 15 | NW 5 | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | 112 | 18 | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | NE 4 | NE 4 | — | — | NW 4 | NW 5 | — | — | — | — | NW 3 | — | — | — | — | — | — | — |
— | 2 | 6 | — | — | 15 | 35 | — | — | — | — | 7 | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 2 | 2 | 0 | 4 | 60 | 4 | 23 | 2 | 28 | 49 | 60 | 2 | 2 | 2 | 0 | 0 | 60 | 0 |
Best forecast wave conditions in Pais Vasco | |||||||||||||||||||
Best forecast wave conditions in Spain (Europe) | |||||||||||||||||||
Header Global | |||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
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.










