Surf Forecasts:
El Mongol surf forecast from 19 Aug 2026:
- Best quality surf: Friday 21 Aug, 11PM (local time) - 5.5ft (1.7m), 10s period, NNW swell with glassy winds.
- Most powerful swell: Thursday 20 Aug, 11PM (local time) - 6ft (1.8m), 11s period, NNW swell with 742 kJ wave energy.
- Next surfable swell (1★+): Thursday 20 Aug, 5AM (local time) - 4.5ft (1.3m), 11s 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 Thursday (Aug 20) at 5AM. The primary swell is predicted to be 1.3m and 11s period with a secondary swell of 0.2m and 11s. Another secondary swell of 0.6m and 6s is also forecast. 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 11s and forecast to arrive on Thursday (Aug 20) 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 0.9m 4s period and expected on Sunday (Aug 23) at 2AM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Thu 20th Aug) | 4.5ft (1.3m) 11s |
| Best Surf | 11PM (Fri 21st Aug) | 5.5ft (1.7m) 10s |
| Most Powerful | 11PM (Thu 20th Aug) | 6ft (1.8m) 11s |
Table - best surf conditions forecast for El Mongol over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s break down what’s coming.
The first few days are a total dud. Wednesday the 19th and Thursday the 20th are flat and weak – don’t even bother paddling out. There’s a gap of nothing worth riding until we get some size.
Friday the 21st picks up to about 6ft from the NNW, but the wind is cross-onshore and the quality is just marginal. Not the day. Saturday the 22nd is smaller at 4ft, but we get clean, cross-offshore winds from the ENE. The energy is weak though (238), and conditions are just ordinary.
Things start looking up on Wednesday the 26th. That morning, El Mongol gets a clean 6ft swell from the WNW with light cross-offshore breezes. The energy is moderate (450) and the conditions are good. That’s a solid session for intermediates. The afternoon gets blown out.
Thursday the 27th brings a heavy pulse – 10ft from the NW (energy 1983), but it’s cross-onshore and choppy. That’s for experts only, and it’s not clean.
The real standout is Friday the 28th. El Mongol sees 6ft of NW groundswell in the morning, dropping to 5ft in the afternoon, with glassy conditions and light offshore winds from the ESE. The water is a touch warmer than normal at 71°. That’s clean, lined-up waves with moderate energy (631 then 454). This is the day to be out – no crowds mentioned, so it might be just you and a few friends.
The weekend gets messy again with stronger winds and choppy surf. Sunday the 30th afternoon has a long-period 14-second swell (energy 1035), but the wind is cross-onshore and the surf is poor.
Into the second week, Monday the 31st of August and Tuesday the 1st of September see a big, powerful swell – 10ft to 13ft from the NW and NNW, with very high energy (up to 4684). This is heavy, expert-only surf, and the wind is cross-onshore or onshore. Only for the brave.
Wednesday the 2nd of September morning is a nice little bonus: 5ft from the NNW with glassy conditions and calm winds. Clean and fun, but energy is moderate (518). A good way to finish.
So, the best call is Friday the 28th – glassy, clean, and solid NW swell at El Mongol. Don’t miss it.
- Rusty
Short Range ForecastLight rain (total 4mm), mostly falling on Thu morning. Warm (max 25°C on Wed afternoon, min 15°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 42mm), heaviest during Sun morning. Very mild (max 18°C on Sat afternoon, min 14°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | |||||||||||||||
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 10 | NNW 12 | NW 8 | NW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 9 | NNW 8 | NNW 7 | N 7 | NNW 7 | NNE 6 | N 6 | N 8 | N 7 | N 6 | NNW 11 | WNW 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 9 | 35 | 280 | 196 | 392 | 741 | 674 | 687 | 394 | 238 | 232 | 181 | 152 | 111 | 88 | 95 | 371 | 123 | 41 | 25 | 108 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross-on | on | on | cross | cross-on | on | glassy | cross-off | cross-off | cross-off | cross | cross | glassy | glassy | cross-on | cross | glassy | cross | cross-off |
High Tide | 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 | 3:56PM3.57m | 4:19AM3.46m | |||||||
Low Tide | 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 | 9:46AM1.31m | 10:15PM1.10m | ||||||||
 |  |  |  | | |  | |  | | |  |  | |  | |  | |  | | | |
 | 7:31 | — | — | 7:31 | — | — | 7:33 | — | — | 7:33 | — | — | 7:35 | — | — | 7:35 | — | — | 7:37 | — | — |
 | — | — | 9:20 | — | — | 9:19 | — | — | 9:16 | — | — | 9:15 | — | — | 9:14 | — | — | 9:12 | — | — | 9:10 |
mm | — | — | — | 2 | — | — | 1 | 1 | — | 2 | 2 | 11 | 15 | 2 | 2 | 3 | 4 | 1 | — | — | — |
Temp °C | 21 | 25 | 22 | 18 | 18 | 17 | 19 | 20 | 19 | 17 | 18 | 18 | 17 | 17 | 17 | 16 | 18 | 18 | 18 | 21 | 19 |
Feels °C | 23 | 25 | 24 | 19 | 19 | 18 | 19 | 18 | 19 | 17 | 17 | 17 | 16 | 18 | 19 | 17 | 18 | 18 | 18 | 19 | 18 |
Swell 1 Height (m) Direction Period (s) | NNW 7 | NW 10 | NNW 12 | NW 8 | NW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 9 | NNW 8 | NNW 7 | N 7 | NNW 7 | NNE 6 | N 6 | N 8 | N 7 | N 6 | N 6 | WNW 7 |
| kJ | 9 | 35 | 280 | 196 | 392 | 741 | 674 | 687 | 394 | 238 | 232 | 181 | 152 | 111 | 88 | 95 | 371 | 123 | 41 | 15 | 108 |
Swell 2 Height (m) Direction Period (s) | WNW 8 | NNW 7 | WNW 9 | NNW 11 | N 8 | N 10 | NNW 12 | N 11 | — | — | — | — | W 8 | — | NNW 7 | — | — | — | NNW 12 | NW 5 | NW 10 |
| kJ | 6 | 4 | 32 | 103 | 44 | 161 | 29 | 286 | — | — | — | — | 1 | — | 61 | — | — | — | 15 | 7 | 50 |
Swell 3 Height (m) Direction Period (s) | NW 11 | WNW 8 | — | NNW 11 | N 10 | — | — | — | — | — | — | — | — | — | E 5 | — | — | — | W 8 | NNW 11 | NNE 5 |
| kJ | 5 | 6 | — | 22 | 19 | — | — | — | — | — | — | — | — | — | 4 | — | — | — | 1 | 25 | 5 |
Wind waves Height (m) Direction Period (s) | — | WNW 2 | — | N 9 | — | — | — | — | — | — | — | ENE 4 | ENE 4 | ENE 4 | — | WNW 4 | — | — | — | — | — |
| kJ | — | 1 | — | 74 | — | — | — | — | — | — | — | 24 | 13 | 11 | — | 18 | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 165 | 294 | 1 | 17 | 5 | 1 | 5 | 17 | 0 | 0 | 0 | 0 | 29 | 29 | 0 | 0 | 5 | 1 | 23 | 21 | 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.
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