Surf Forecasts:
La Concha surf forecast from 23 Aug 2026:
- Best quality surf: Saturday 29 Aug, 5AM (local time) - 8ft (2.5m), 9s period, WNW swell with cross-offshore winds.
- Most powerful swell: Friday 28 Aug, 11PM (local time) - 8ft (2.5m), 10s period, WNW swell with 1,346 kJ wave energy.
- Next surfable swell (1★+): Thursday 27 Aug, 2PM (local time) - 4.5ft (1.4m), 9s period with WNW swell.
Best Forecast Surf Conditions for La Concha this week:
The surf forecast for La Concha over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Aug 27) at 2PM. The primary swell is predicted to be 1.4m and 9s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at La Concha in the next 16 days are 2.5m 10s and forecast to arrive on Friday (Aug 28) 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 0.8m 4s period and expected on Friday (Aug 28) at 5AM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2PM (Thu 27th Aug) | 4.5ft (1.4m) 9s |
| Best Surf | 5AM (Sat 29th Aug) | 8ft (2.5m) 9s |
| Most Powerful | 11PM (Fri 28th Aug) | 8ft (2.5m) 10s |
Table - best surf conditions forecast for La Concha over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s take a look at the next couple of weeks.
It’s a slow start. We’ve got a few days of tiny, weak swell and mostly onshore or cross-onshore winds, so don’t bother paddling out just yet. The water is sitting at 76°, which is running much warmer than usual for this time of year – a good 5° above the norm, so you’ll be in the water in boardies or a shorty.
Things start to change around Thursday, the 27th. The swell picks up, but it’s still marginal with questionable conditions. The combined energy climbs into the moderate range (207) on Thursday morning, with a 4ft swell from the WNW, but the wind is a cross-off, so it’s clean. It’s still not a standout, though.
The real window opens up on Saturday, the 29th. That’s your best bet. Early morning at La Concha we’ve got a solid 7ft swell from the WNW, a period of 10 seconds, and the wind is glassy. The combined energy is up to 868, which is strong. That’s proper groundswell energy, and with glassy conditions, it’s going to be clean. It’s a reef break, so that long-period groundswell will wrap in nicely. Heads up, though – at 7ft, this is getting into expert territory. It’s not for beginners. Also, this spot is inconsistent, and it gets crowded often, so if you’re heading out, get there early.
Sunday, the 30th also has a clean morning – 4ft from the NW, glassy, and with a 9-second period. The combined energy is 262, so it’s moderate. That’s a nice, less intimidating option for the stronger intermediate crew.
Then we get a bit of a lull again. The first week of September is mostly flat or small, with poor conditions. Don’t get your hopes up for much action until Monday, the 7th of September. That afternoon, the swell pumps up to 12ft from the WNW, with a combined energy of 1892 – that’s very strong. But the wind is onshore, so it’s going to be a messy, powerful beast. Only for the most experienced, and even then, it’s not going to be clean. The setup might be more interesting for kite surfing than a proper paddle session.
So, to sum it up: the standout is the morning of Saturday, the 29th of August – big, clean, and powerful. Sunday, the 30th morning is a solid second option. The rest of the period is mostly small, blown out, or flat.
Rusty.
Short Range ForecastLight rain (total 4mm), mostly falling on Sun night. Warm (max 32°C on Sun afternoon, min 19°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 5mm), mostly falling on Wed night. Warm (max 33°C on Wed afternoon, min 17°C on Thu night). Wind will be generally light. | |||||||||||||||||||
Sun 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | ||||||||||||||
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 7 | NNE 5 | NNE 5 | NNW 6 | N 5 | NW 13 | NW 12 | NW 11 | NW 10 | NW 10 | NW 9 | WNW 9 | WNW 8 | WNW 9 | WNW 8 | WNW 9 | WNW 9 | WNW 10 | WNW 10 | NW 9 |
Wave Graph  | ||||||||||||||||||||
 kJ | 19 | 24 | 5 | 12 | 2 | 7 | 23 | 43 | 35 | 23 | 20 | 207 | 255 | 218 | 131 | 559 | 1102 | 868 | 630 | 338 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-off | off | on | off | cross-off | on | cross-off | cross-off | cross-off | cross-on | cross-off | cross-on | cross-off | cross-off | cross-on | cross | glassy | on | off |
High Tide | 2:30PM2.72m | 3:06AM2.70m | 3:24PM2.95m | 3:50AM2.91m | 4:04PM3.20m | 4:26AM3.13m | 4:38PM3.43m | 4:58AM3.32m | 5:10PM3.63m | 5:29AM3.48m | 5:41PM3.78m | 6:00AM3.60m | 6:12PM3.86m | |||||||
Low Tide | 8:39PM1.21m | 8:57AM1.19m | 9:30PM0.98m | 9:42AM0.94m | 10:10PM0.73m | 10:20AM0.70m | 10:45PM0.50m | 10:53AM0.49m | 11:18PM0.31m | 11:26AM0.32m | 11:50PM0.17m | 11:58AM0.21m | 00:21AM0.10m | |||||||
 |  | |  |  | | | |  | |  | | |  | | | | | |  | |
 | — | — | 7:22 | — | — | 7:22 | — | — | 7:24 | — | — | 7:24 | — | — | 7:26 | — | — | 7:28 | — | — |
 | 8:59 | — | — | 8:57 | — | — | 8:55 | — | — | 8:53 | — | — | 8:52 | — | — | 8:51 | — | — | 8:49 | — |
mm | — | 4 | — | — | — | — | — | — | — | — | 1 | — | — | 1 | — | — | 3 | — | — | — |
Temp °C | 32 | 24 | 28 | 32 | 23 | 26 | 26 | 22 | 24 | 33 | 25 | 23 | 27 | 23 | 20 | 24 | 21 | 21 | 23 | 20 |
Feels °C | 32 | 25 | 27 | 29 | 24 | 24 | 25 | 23 | 25 | 31 | 24 | 19 | 23 | 23 | 16 | 20 | 19 | 22 | 22 | 21 |
Swell 1 Height (m) Direction Period (s) | NW 7 | NNE 5 | NNE 5 | — | N 5 | NW 13 | NW 3 | NW 5 | WNW 5 | NW 10 | WNW 4 | WNW 9 | WNW 8 | WNW 9 | WNW 8 | WNW 9 | WNW 9 | WNW 10 | WNW 10 | NW 9 |
| kJ | 19 | 24 | 4 | — | 2 | 7 | 1 | 6 | 10 | 23 | 17 | 207 | 255 | 218 | 131 | 559 | 1102 | 868 | 630 | 338 |
Swell 2 Height (m) Direction Period (s) | W 8 | NW 7 | NNW 7 | — | — | — | NW 12 | NW 11 | NW 10 | WNW 6 | NW 9 | — | — | — | NW 10 | — | — | — | — | — |
| kJ | 1 | 13 | 5 | — | — | — | 23 | 43 | 35 | 17 | 20 | — | — | — | 84 | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | W 12 | W 10 | W 9 | W 10 | NW 6 | NW 9 | NW 8 | W 8 | — | WNW 7 | — | — | — | — | — | — | — | — | — | — |
| kJ | 3 | 2 | 2 | 2 | 2 | 3 | 3 | 1 | — | 5 | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NNE 5 | — | SSW 3 | NNW 6 | — | SW 3 | NE 2 | — | — | — | — | — | — | — | SSW 4 | — | — | — | — | — |
| kJ | 16 | — | 2 | 12 | — | 2 | 1 | — | — | — | — | — | — | — | 8 | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 214 | 10 | 245 | 324 | 310 | 495 | 548 | 2 | 2 | 2 | 189 | 12 | 26 | 2 | 12 | 12 | 6 | 2 | 53 | 2 |
Best forecast wave conditions in Pais Vasco | ||||||||||||||||||||
Best forecast wave conditions in Spain (Europe) | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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Information about the La Concha Surf forecast
The above surf forecast table for La Concha provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at La Concha can be found by selecting the local surf guide option on the grey menu. Our La Concha 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 (La Concha) 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 La Concha 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.
La Concha is 6 km (4 miles) from San Sebastian. If you plan a holiday in Pais Vasco, look for hotels and other accommodation in San Sebastian. San Sebastian has rooms for a wide range of budgets as well as car hire and transport links.
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