Surf Forecasts:
El Mongol surf forecast from 25 Aug 2026:
- Best quality surf: Sunday 30 Aug, 8PM (local time) - 6ft (1.9m), 10s period, NW swell with glassy winds.
- Most powerful swell: Sunday 30 Aug, 8PM (local time) - 6ft (1.9m), 10s period, NW swell with 660 kJ wave energy.
- Next surfable swell (1★+): Thursday 27 Aug, 2AM (local time) - 3.5ft (1.1m), 7s period with WNW swell.
Best Forecast Surf Conditions for El Mongol this week:
The surf forecast for El Mongol over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Aug 27) at 2AM. The primary swell is predicted to be 1.1m and 7s period with a secondary swell of 0.2m and 4s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at El Mongol in the next 16 days are 1.9m 10s and forecast to arrive on Sunday (Aug 30) at 8PM. Winds are predicted to be glassy 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 11AM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Thu 27th Aug) | 3.5ft (1.1m) 7s |
| Best Surf | 8PM (Sun 30th Aug) | 6ft (1.9m) 10s |
| Most Powerful | 8PM (Sun 30th Aug) | 6ft (1.9m) 10s |
Table - best surf conditions forecast for El Mongol over the next 16 days.
The Lowdown
Alright folks, Rusty here, looking at the next 16 days. We've got one spot on the menu, and it's gonna be a bit of a slow burner.
Alright, let's get into it. The forecast starts off with a bit of a flat spell. For the first couple of days, we're looking at tiny, weak waves. The energy is low, around (41 to 50), and the swell periods are short, so there's just not much to work with. You'll be waiting for a pulse.
The first sign of life arrives on the morning of Thursday the 27th. The swell bumps up a bit to 3ft from the WNW with an 8-second period, pushing the energy into three digits at (101). The wind is glassy which is a big plus, but the waves are still pretty ordinary. It's surfable, but don't expect anything special. This pattern of small, glassy waves from the WNW continues through to the weekend, with the swell hovering around 3ft to 4ft. The water temp is sitting at a balmy 71°, which is a touch warmer than normal for this time of year, so you can leave the thick rubber at home.
Now, things start to get a bit more interesting. On Friday the 28th, the swell builds to 5ft from the WNW, but it comes with a cross-shore wind which messes with the quality. It’s a bit of a miss on the wind window.
The real standout we're looking at is on the morning of Saturday the 29th. The swell holds at 5ft from the NW, but crucially, we get glassy conditions again. This is a solid, rideable size with clean conditions, (390) of energy behind it. For an intermediate surfer, this is the session to aim for, with clean, glassy waves. The crowds are likely to be there though, so get in early.
The next highlight comes on the morning of Wednesday, September 2nd. This one has a bit more promise. The swell comes up to 6ft from the NW with a 10-second period and a healthy (696) energy reading. The wind is a light cross-offshore breeze, keeping things clean. This is offering some of the best shape and power in the whole outlook, and definitely the biggest clean swell of the run. If you can handle it, this is the one.
After that, the swell backs off again but hangs around the 4ft to 5ft mark for the first week of September. The winds get a bit more onshore and messy for most of it, making it hard to find a good bank. A few mornings offer glass, but the surf is average.
Looking further out, we've got a final dash of hope on the morning of Wednesday, September 9th. A 5ft NW swell with a very long 13-second period pushes the energy up to (831). That's proper groundswell energy, but the wind is straight onshore from the NNW. For El Mongol, a reef break, that long-period swell will wrap in nicely, but the onshore wind will likely make it a bumpy, choppy mess. It's a case of what could have been.
So, to wrap it up: the best two windows to pencil in are the morning of Saturday the 29th for a clean, intermediate-friendly session, and the morning of Wednesday, September 2nd, for the pick of the swell under clean offshore winds. Beyond that, it’s a waiting game.
Rusty.
Short Range ForecastModerate rain (total 14mm), heaviest on Tue afternoon. Warm (max 25°C on Wed afternoon, min 15°C on Thu morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 25°C on Sun afternoon, min 13°C on Fri morning). Wind will be generally light. | ||||||||||||||||||||
Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | |||||||||||||||
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) | WNW 4 | NW 11 | WNW 6 | NW 9 | NW 9 | WNW 7 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | NW 9 | NW 9 | NW 8 | NW 8 | NW 8 | NW 8 | NW 10 | NW 9 | NW 9 | NW 9 | NW 9 |
Wave Graph | |||||||||||||||||||||
18 | 31 | 58 | 29 | 26 | 121 | 100 | 112 | 243 | 270 | 537 | 492 | 304 | 206 | 203 | 155 | 388 | 412 | 367 | 343 | 332 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-off | glassy | off | glassy | glassy | glassy | glassy | cross | cross | on | cross | glassy | cross | glassy | glassy | on | cross-on | cross-on | cross-on | glassy |
High Tide | 3:56PM3.57m | 4:19AM3.46m | 4:33PM3.79m | 4:52AM3.65m | 5:05PM3.97m | 5:24AM3.81m | 5:37PM4.11m | 5:54AM3.93m | 6:08PM4.18m | 6:26AM3.99m | 6:40PM4.18m | 6:59AM3.98m | 7:15PM4.10m | ||||||||
Low Tide | 9:46AM1.31m | 10:15PM1.10m | 10:22AM1.08m | 10:47PM0.89m | 10:54AM0.87m | 11:18PM0.72m | 11:25AM0.71m | 11:49PM0.60m | 11:57AM0.60m | 00:19AM0.53m | 12:29PM0.56m | 00:51AM0.53m | 1:03PM0.59m | 1:25AM0.61m | |||||||
7:37 | — | — | 7:39 | — | — | 7:39 | — | — | 7:41 | — | — | 7:41 | — | — | 7:43 | — | — | 7:43 | — | — | |
— | — | 9:10 | — | — | 9:08 | — | — | 9:07 | — | — | 9:06 | — | — | 9:04 | — | — | 9:01 | — | — | 9:00 | |
mm | 1 | 3 | — | — | 1 | 2 | 2 | 3 | 2 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 24 | 21 | 22 | 25 | 21 | 19 | 20 | 16 | 19 | 23 | 20 | 20 | 23 | 21 | 22 | 25 | 20 | 19 | 22 | 20 |
Feels °C | 24 | 25 | 22 | 23 | 24 | 22 | 20 | 21 | 15 | 18 | 20 | 20 | 21 | 23 | 22 | 22 | 24 | 22 | 20 | 21 | 20 |
Swell 1 Height (m) Direction Period (s) | NNE 5 | WNW 5 | WNW 6 | WNW 6 | NW 9 | WNW 7 | WNW 8 | WNW 8 | NW 10 | WNW 8 | N 9 | NW 9 | NW 8 | NW 8 | NW 8 | NW 8 | NW 10 | N 9 | NW 9 | NW 9 | NW 9 |
3 | 13 | 58 | 14 | 26 | 121 | 100 | 112 | 27 | 270 | 13 | 492 | 304 | 206 | 203 | 155 | 388 | 40 | 367 | 343 | 332 | |
Swell 2 Height (m) Direction Period (s) | N 6 | NW 11 | NW 10 | NW 9 | ENE 4 | ENE 4 | N 5 | ENE 3 | — | NW 11 | — | — | N 8 | N 8 | N 8 | NW 11 | N 10 | — | N 15 | NNW 13 | N 9 |
6 | 31 | 25 | 29 | 5 | 1 | 1 | 2 | — | 121 | — | — | 86 | 55 | 29 | 61 | 8 | — | 4 | 17 | 13 | |
Swell 3 Height (m) Direction Period (s) | NNW 12 | N 8 | N 6 | N 5 | N 5 | N 6 | — | N 5 | N 10 | N 7 | — | — | — | — | — | — | — | — | — | NW 13 | — |
14 | 6 | 3 | 1 | 1 | 1 | — | 1 | 7 | 14 | — | — | — | — | — | — | — | — | — | 7 | — | |
Wind waves Height (m) Direction Period (s) | WNW 4 | — | — | E 3 | WNW 6 | — | ENE 4 | — | WNW 8 | SSW 4 | NW 9 | — | — | — | — | — | — | NW 9 | — | — | — |
18 | — | — | 3 | 17 | — | 1 | — | 243 | 1 | 537 | — | — | — | — | — | — | 412 | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 234 | 19 | 1 | 138 | 287 | 0 | 0 | 0 | 1 | 1 | 108 | 1 | 0 | 29 | 0 | 0 | 12 | 2 | 5 | 17 | 0 |
Best forecast wave conditions in Asturias | |||||||||||||||||||||
Best forecast wave conditions in Spain (Europe) | |||||||||||||||||||||
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Information about the El Mongol Surf forecast
The above surf forecast table for El Mongol provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at El Mongol can be found by selecting the local surf guide option on the grey menu. Our El Mongol 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 (El Mongol) 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 El Mongol 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.
El Mongol is 2 km (1 miles) from Gijon. If you plan a holiday in Asturias, look for hotels and other accommodation in Gijon. Gijon has rooms for a wide range of budgets as well as car hire and transport links.











