
Surf Forecasts:
Bakio surf forecast from 16 Sep 2026:
- Best quality surf: Wednesday 23 Sep, 5AM (local time) - 4.5ft (1.3m), 16s period, NW swell with offshore winds.
- Most powerful swell: Friday 18 Sep, 11PM (local time) - 8ft (2.5m), 14s period, NW swell with 2,310 kJ wave energy.
- Next surfable swell (1★+): Friday 18 Sep, 5AM (local time) - 4ft (1.2m), 10s period with NW swell.
Best Forecast Surf Conditions for Bakio this week:
The surf forecast for Bakio over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Sep 18) at 5AM. The primary swell is predicted to be 1.2m and 10s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Bakio in the next 16 days are 2.5m 14s and forecast to arrive on Friday (Sep 18) at 11PM. 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+) | 5AM (Fri 18th Sep) | 4ft (1.2m) 10s |
| Best Surf | 5AM (Wed 23rd Sep) | 4.5ft (1.3m) 16s |
| Most Powerful | 11PM (Fri 18th Sep) | 8ft (2.5m) 14s |
Table - best surf conditions forecast for Bakio over the next 16 days.
The Lowdown
Alright folks, Rusty here. We’ve got a look at the Bakio region coming up, and it’s a bit of a slow burner to start. The water is sitting at 72° right now, which is much warmer than normal for this time of year, so that’s a nice little bonus.
The first few days are grim. Wednesday the 16th and Thursday the 17th are total write-offs with poor surf conditions and onshore winds making a mess of things. The swell coming in is a weak to moderate 256 combined energy, jumping up to 595 by Thursday morning, but the wind just kills it. You can leave the board in the car.
Friday the 18th morning shows some life. We’ve got a clean 4ft swell from the NW (9 seconds) with light cross-offshore breezes. The combined energy is 287, still weak, but it’s clean. Not a standout, but the first real sign of hope. The afternoon jumps up to 7ft with a very strong 1799 combined energy, but that onshore wind makes it a messy proposition.
Saturday the 19th is a frustrating one. The morning has a cleanish 7ft NW swell (13 seconds) and light cross winds, but the combined energy is a strong 1380. The rating is there, but it’s not quite firing on all cylinders. The afternoon flips to onshore again.
Now, here’s the highlight of the outlook. Mark your calendars for the morning of Sunday, September 20th. That’s the best of the bunch. Glassy conditions, zero wind, and a solid 5ft NW swell with an 11-second period. The combined energy is a moderate 576. The wind is calm, so it’ll be clean and lined up. This is the one to aim for. The crowd profile at Bakio often has people, so don’t expect to have it to yourself, but the conditions will be worth sharing.
Monday the 21st morning is also glassy with a similar 5ft NW swell (12 seconds) and 559 combined energy. Another excellent morning if you can sneak out.
Tuesday the 22nd offers another glassy morning, but the swell dips to 4ft. It’s clean, but smaller.
The next real standout is Wednesday morning, September 23rd. This one is for the experienced crew. We get a clean, 5ft NW swell with a very long 15-second period and a strong 1017 combined energy. The light offshore wind will groom it beautifully. This is a groundswell, and at 15 seconds, it’ll have plenty of punch, but it might ask a bit more of you at a beach break. For the better surfers, this is a proper session.
From there, the surf drops off through the end of the month. The morning of Saturday the 26th has a 4ft NW swell (15 seconds) and 738 combined energy, but it’s cross-shore winds. Not terrible, but not a standout.
By the end of the period, around the 30th of September and the 1st of October, we see a big pulse of swell – 8ft to 10ft – but it’s all onshore and messy. Total write-off for paddling, might be more interesting for the kite crew if you’re into that.
To sum it up: If you can get out Sunday the 20th or Monday the 21st in the morning, that’s your best bet for clean, fun waves. For the more experienced crew, Wednesday the 23rd morning is the bigger, more powerful session. The rest of the window is a mix of small clean days and blown-out swells.
Rusty out.
Short Range ForecastLight rain (total 5mm), mostly falling on Wed morning. Warm (max 20°C on Wed afternoon, min 17°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 22°C on Mon afternoon, min 16°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | |||||||||||||||
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) | NNW 7 | NW 9 | NW 10 | NW 11 | NW 11 | NW 10 | NW 9 | NW 14 | NNW 14 | NNW 13 | NW 13 | NW 12 | NW 11 | NW 11 | NW 11 | NW 12 | NW 12 | NW 11 | NW 12 | NW 12 | NW 17 |
Wave Graph | |||||||||||||||||||||
185 | 342 | 520 | 595 | 487 | 305 | 212 | 1799 | 2212 | 1380 | 1044 | 706 | 573 | 471 | 368 | 551 | 478 | 357 | 314 | 309 | 648 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross-on | cross-on | cross-on | cross | cross-off | on | cross-on | cross | cross-on | cross-off | glassy | cross-on | cross-off | glassy | cross-on | cross-off | glassy | on | cross-off |
High Tide | 8:08AM3.29m | 8:29PM3.10m | 8:44AM3.04m | 9:08PM2.80m | 9:27AM2.79m | 10:03PM2.53m | 10:34AM2.57m | 11:36PM2.37m | 12:24PM2.50m | 1:28AM2.42m | 1:56PM2.65m | 2:35AM2.62m | 2:50PM2.90m | 3:18AM2.87m | |||||||
Low Tide | 2:19PM0.64m | 2:35AM0.86m | 3:01PM0.93m | 3:18AM1.15m | 3:54PM1.21m | 4:16AM1.40m | 5:12PM1.41m | 5:47AM1.52m | 6:54PM1.41m | 7:23AM1.43m | 8:11PM1.23m | 8:27AM1.20m | 9:00PM0.96m | ||||||||
7:50 | — | — | 7:52 | — | — | 7:52 | — | — | 7:54 | — | — | 7:54 | — | — | 7:56 | — | — | 7:56 | — | — | |
— | 8:20 | — | — | 8:17 | — | — | 8:16 | — | — | 8:15 | — | — | 8:13 | — | — | 8:10 | — | — | 8:08 | — | |
mm | 1 | — | 2 | 1 | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 19 | 20 | 19 | 18 | 19 | 19 | 18 | 20 | 19 | 19 | 20 | 19 | 18 | 21 | 20 | 21 | 22 | 21 | 21 | 21 | 20 |
Feels °C | 16 | 18 | 17 | 17 | 18 | 18 | 18 | 19 | 18 | 18 | 18 | 18 | 19 | 20 | 20 | 21 | 21 | 21 | 22 | 20 | 19 |
Swell 1 Height (m) Direction Period (s) | NNW 7 | NW 9 | NW 10 | NW 11 | NW 11 | NW 10 | NW 9 | NW 14 | NNW 14 | NNW 13 | NW 13 | NW 12 | NW 11 | NW 11 | NW 11 | NW 12 | NW 12 | NW 11 | NW 12 | NW 12 | NW 17 |
185 | 342 | 520 | 595 | 487 | 305 | 212 | 1799 | 2212 | 1380 | 1044 | 706 | 573 | 471 | 368 | 551 | 478 | 357 | 314 | 309 | 648 | |
Swell 2 Height (m) Direction Period (s) | NW 9 | — | NW 13 | — | — | — | NW 12 | — | — | — | — | — | NNE 4 | — | NNW 13 | NNE 5 | NNE 5 | N 5 | N 5 | N 5 | NW 11 |
71 | — | 128 | — | — | — | 75 | — | — | — | — | — | 3 | — | 120 | 8 | 7 | 11 | 17 | 12 | 168 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | NW 20 | N 6 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 61 | 30 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | NE 4 | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | 4 | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 9 | 9 | 9 | 41 | 52 | 5 | 0 | 9 | 9 | 0 | 9 | 0 | 0 | 9 | 0 | 0 | 9 | 0 | 0 | 9 | 0 |
Best forecast wave conditions in Pais Vasco | |||||||||||||||||||||
Best forecast wave conditions in Spain (Europe) | |||||||||||||||||||||
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Information about the Bakio Surf forecast
The above surf forecast table for Bakio provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Bakio can be found by selecting the local surf guide option on the grey menu. Our Bakio 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 (Bakio) 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 Bakio 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.
Bakio is 7 km (4 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.










