Surf Forecasts:
El Mongol surf forecast from 18 Aug 2026:
- Best quality surf: Thursday 20 Aug, 11PM (local time) - 5.5ft (1.7m), 11s period, NNW swell with glassy winds.
- Most powerful swell: Friday 21 Aug, 2AM (local time) - 6ft (1.8m), 10s period, NNW swell with 701 kJ wave energy.
- Next surfable swell (1★+): Wednesday 19 Aug, 11PM (local time) - 2.5ft (0.7m), 12s period with NNW 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 Wednesday (Aug 19) at 11PM. The primary swell is predicted to be 0.7m and 12s period with a secondary swell of 0.4m and 10s. 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 1.8m 10s and forecast to arrive on Friday (Aug 21) at 2AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Monday (Aug 24) at 8PM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Wed 19th Aug) | 2.5ft (0.7m) 12s |
| Best Surf | 11PM (Thu 20th Aug) | 5.5ft (1.7m) 11s |
| Most Powerful | 2AM (Fri 21st Aug) | 6ft (1.8m) 10s |
Table - best surf conditions forecast for El Mongol over the next 16 days.
The Lowdown
Alright, this is Rusty. Let's have a look at what's on offer at El Mongol for the next couple of weeks.
Honestly, for the first few days, it's pretty flat and not worth getting excited about. We’ve got a real slow start. From Tuesday the 18th through to Wednesday the 19th, the swell is tiny, barely 1ft to 2ft, and the energy is weak (37 to 50). It’s just not doing anything. Hold tight.
Thursday the 20th is where things start to get a little interesting. The morning’s a bit marginal with a 4ft NW swell (375 energy) and a light cross-onshore wind, but the afternoon cleans right up. The wind goes glassy, the swell bumps up to 5ft from the NW with a 10-second period, and the energy jumps to a solid 428. That’s the first real sign of life. The water is sitting at 22°, a touch warmer than normal for this time of year, so it’s comfortable.
Friday the 21st brings more size but the conditions are a bit of a mixed bag. The morning has a 6ft swell from the NNW (596 energy) but the wind is cross-onshore, making it marginal. The afternoon turns onshore and a bit messy, but there’s still a lot of water moving around.
Now, the standout window. Saturday the 29th of August is the one to circle. The morning is glassy, dead calm, with a 3ft WNW swell – it’s not huge, but the energy is a moderate 214, and the period is a tidy 9 seconds. With that glassy surface, it’s going to be clean and fun. That’s the pick of the whole run.
Look further ahead, and Thursday the 28th of August morning has a solid 6ft NW swell (711 energy) with lighter winds, which has potential, but it's described as marginal. The following week, around the 1st and 2nd of September, there’s a whisper of a 4ft NW swell with glassy conditions, but it’s all a bit ordinary and low energy.
Best Bet: If you’re keen, make the call for the morning of Saturday the 29th of August. Small but glassy and clean. Thursday the 20th afternoon is also a cracking little session before the bigger, wind-affected stuff shows up.
This is Rusty, signing off.
Short Range ForecastLight rain (total 5mm), mostly falling on Thu morning. Warm (max 24°C on Tue afternoon, min 16°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 3mm), mostly falling on Fri morning. Warm (max 21°C on Sat afternoon, min 14°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | |||||||||||||||
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 8 | NW 8 | NNW 7 | NNW 7 | NW 10 | NNW 12 | NW 8 | NW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 9 | NW 8 | NW 8 | NW 7 | NNW 7 | NNW 7 | N 6 | NE 6 | NNE 5 |
Wave Graph  | |||||||||||||||||||||
 kJ | 24 | 14 | 11 | 9 | 35 | 211 | 201 | 384 | 701 | 567 | 578 | 386 | 258 | 346 | 229 | 122 | 153 | 85 | 33 | 33 | 17 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | glassy | glassy | cross-on | cross | cross-on | glassy | cross | cross-on | on | glassy | cross-on | on | glassy | cross-on | cross-on | cross | cross-on | on | cross-off |
High Tide | 8:53AM3.56m | 9:11PM3.51m | 9:37AM3.34m | 9:59PM3.21m | 10:30AM3.13m | 11:01PM2.96m | 11:41AM2.99m | 00:24AM2.83m | 1:05PM2.99m | 1:49AM2.87m | 2:19PM3.12m | 2:55AM3.03m | 3:14PM3.34m | 3:42AM3.24m | |||||||
Low Tide | 2:50PM1.11m | 3:14AM1.21m | 3:34PM1.38m | 3:57AM1.48m | 4:30PM1.63m | 4:57AM1.72m | 5:56PM1.79m | 6:30AM1.83m | 7:42PM1.75m | 8:04AM1.74m | 8:52PM1.56m | 9:03AM1.54m | 9:38PM1.33m | ||||||||
 | |  |  | |  |  | |  | | |  | |  | | | | | | | | |
 | 7:30 | — | — | 7:31 | — | — | 7:31 | — | — | 7:33 | — | — | 7:33 | — | — | 7:35 | — | — | 7:35 | — | — |
 | — | — | 9:22 | — | — | 9:20 | — | — | 9:19 | — | — | 9:16 | — | — | 9:15 | — | — | 9:14 | — | — | 9:12 |
mm | — | — | — | — | — | — | 2 | 2 | 1 | 1 | — | — | — | 1 | — | — | 1 | — | — | — | — |
Temp °C | 22 | 24 | 22 | 20 | 24 | 23 | 18 | 18 | 18 | 16 | 20 | 19 | 19 | 21 | 20 | 19 | 21 | 19 | 19 | 22 | 20 |
Feels °C | 23 | 24 | 23 | 22 | 24 | 24 | 19 | 19 | 19 | 16 | 18 | 18 | 18 | 20 | 19 | 18 | 20 | 19 | 17 | 20 | 19 |
Swell 1 Height (m) Direction Period (s) | NNW 8 | NW 8 | NE 3 | NNW 7 | NW 10 | NNW 12 | NNW 11 | NW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 9 | NW 8 | NW 8 | NW 7 | NNW 7 | NNW 7 | N 6 | NW 6 | NNE 5 |
| kJ | 24 | 14 | 2 | 9 | 35 | 211 | 101 | 384 | 701 | 567 | 578 | 386 | 258 | 346 | 229 | 122 | 153 | 85 | 33 | 18 | 17 |
Swell 2 Height (m) Direction Period (s) | WNW 8 | WNW 8 | NNW 7 | WNW 8 | NNW 7 | WNW 9 | NNW 11 | NNW 12 | N 9 | NNW 12 | N 10 | — | NNW 9 | NNW 8 | N 7 | NNW 8 | — | N 7 | NW 6 | W 7 | ESE 4 |
| kJ | 7 | 6 | 11 | 6 | 9 | 32 | 64 | 14 | 139 | 29 | 214 | — | 33 | 120 | 70 | 37 | — | 44 | 19 | 4 | 5 |
Swell 3 Height (m) Direction Period (s) | — | — | WNW 8 | NW 11 | WNW 8 | — | N 11 | NNW 12 | — | — | — | — | — | — | — | — | — | W 8 | W 7 | NW 9 | NW 6 |
| kJ | — | — | 6 | 5 | 6 | — | 9 | 30 | — | — | — | — | — | — | — | — | — | 1 | 1 | 3 | 8 |
Wind waves Height (m) Direction Period (s) | NE 5 | NE 3 | — | — | — | — | NW 8 | — | — | — | — | — | — | — | — | — | — | — | — | NE 6 | — |
| kJ | 6 | 7 | — | — | — | — | 201 | — | — | — | — | — | — | — | — | — | — | — | — | 33 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 127 | 287 | 212 | 165 | 294 | 1 | 124 | 0 | 1 | 1 | 17 | 0 | 5 | 17 | 0 | 5 | 131 | 1 | 108 | 615 | 369 |
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.
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