Surf Forecasts:
El Mongol surf forecast from 7 Sep 2026:
- Best quality surf: Wednesday 9 Sep, 8PM (local time) - 5.5ft (1.7m), 11s period, NNW swell with cross-offshore winds.
- Most powerful swell: Sunday 13 Sep, 2AM (local time) - 5ft (1.5m), 13s period, NNW swell with 820 kJ wave energy.
- Next surfable swell (1★+): Tuesday 8 Sep, 2AM (local time) - 3.5ft (1.1m), 11s period with NW 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 Tuesday (Sep 08) at 2AM. The primary swell is predicted to be 1.1m and 11s period with a secondary swell of 0.2m and 8s. 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 1.5m 13s and forecast to arrive on Sunday (Sep 13) at 2AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Friday (Sep 11) at 11PM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Tue 8th Sep) | 3.5ft (1.1m) 11s |
| Best Surf | 8PM (Wed 9th Sep) | 5.5ft (1.7m) 11s |
| Most Powerful | 2AM (Sun 13th Sep) | 5ft (1.5m) 13s |
Table - best surf conditions forecast for El Mongol over the next 16 days.
The Lowdown
Alright, Rusty here again. Let’s break it down in feet and miles.
The first week has a slow start, but the good stuff is coming. The big moment is Sunday the 13th into Monday the 14th – that’s when you want to be out.
Tuesday morning the 8th at El Mongol (reef) is a bit of a snoozer: 3.6ft NW swell at 10 seconds, combined energy of 230 (moderate), and glassy wind. It’s clean, but the waves are ordinary. Wednesday morning the 9th improves: 4.9ft from the NNW at 8 seconds, combined energy of 465 (moderate), with zero wind and glassy conditions. A fun little pulse, but the short period means it’ll be a bit soft. Thursday the 10th keeps it going with 4.6ft NNW swell at 10 seconds, combined energy 376 (moderate), and glassy conditions again. Consistent and clean.
But the real standout is Sunday the 13th, morning session. You’re looking at 5.2ft of NNW groundswell with a solid 13-second period, combined energy of 787 (strong). The wind is glassy – dead calm. That’s a recipe for perfection at this reef. The long period will give you power and shape, and the sets will have real weight.
Monday the 14th is still excellent: 4.3ft NNW swell at 11 seconds, combined energy of 398 (moderate), and clean cross-off winds. The morning is the best of it. After that, the swell fades through the middle of the week with small, ordinary waves and combined energy under 200 (weak).
Looking into the second week, there’s a promising pulse on Monday the 21st. The morning shows 5.2ft of NW swell at 11 seconds, combined energy of 567 (moderate to strong), with clean cross-off winds. It’s a long way out, but it’s worth watching. Tuesday the 22nd also has a clean 3.9ft pulse from the NNW.
Water temp is about what you’d expect for this time of year. The break is consistent, so when the swell comes, it’s on. Get on it for Sunday the 13th through Monday the 14th, with Sunday morning as the absolute best of the bunch.
Short Range ForecastModerate rain (total 18mm), heaviest on Tue night. Warm (max 21°C on Tue morning, min 13°C on Thu morning). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 22°C on Sun afternoon, min 14°C on Fri night). Wind will be generally light. | ||||||||||||||||||
Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | ||||||||||||||
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 11 | NW 10 | WNW 9 | NW 9 | NNW 8 | NNW 11 | NNW 10 | NNW 10 | NNW 10 | NNW 9 | NW 10 | NW 8 | WNW 8 | WNW 8 | NNW 16 | NNW 13 | NNW 13 | NNW 12 | NNW 12 |
Wave Graph  | |||||||||||||||||||
 kJ | 273 | 225 | 440 | 525 | 322 | 256 | 554 | 373 | 248 | 101 | 44 | 80 | 39 | 25 | 102 | 820 | 787 | 680 | 518 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | on | on | glassy | cross | off | glassy | cross-off | glassy | glassy | cross | off | cross-off | cross-off | cross-off | glassy | cross | off |
High Tide | 2:58AM3.44m | 3:19PM3.83m | 3:51AM3.71m | 4:09PM4.09m | 4:35AM3.93m | 4:51PM4.28m | 5:15AM4.08m | 5:30PM4.36m | 5:51AM4.14m | 6:07PM4.33m | 6:26AM4.12m | 6:42PM4.21m | |||||||
Low Tide | 8:49PM1.13m | 9:07AM1.14m | 9:43PM0.83m | 9:57AM0.86m | 10:27PM0.58m | 10:39AM0.62m | 11:06PM0.42m | 11:17AM0.48m | 11:43PM0.37m | 11:54AM0.44m | 00:17AM0.41m | 12:29PM0.49m | 00:49AM0.53m | ||||||
 |  |  |  | | |  |  | | | | |  | | | | | | | |
 | — | 7:52 | — | — | 7:54 | — | — | 7:54 | — | — | 7:56 | — | — | 7:56 | — | — | 7:58 | — | — |
 | 8:47 | — | 8:45 | — | — | 8:44 | — | — | 8:43 | — | — | 8:40 | — | — | 8:38 | — | — | 8:37 | — |
mm | — | — | 7 | 11 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 21 | 20 | 18 | 18 | 20 | 18 | 18 | 21 | 19 | 19 | 21 | 19 | 18 | 21 | 19 | 19 | 22 | 20 |
Feels °C | 22 | 22 | 19 | 19 | 18 | 18 | 17 | 17 | 19 | 18 | 20 | 20 | 19 | 18 | 20 | 19 | 20 | 21 | 20 |
Swell 1 Height (m) Direction Period (s) | NW 11 | NW 10 | N 6 | NW 9 | NNW 8 | NNW 8 | NNW 10 | NNW 10 | NNW 10 | NNW 9 | NNW 8 | NW 8 | WNW 8 | WNW 8 | NW 10 | NNW 13 | NNW 13 | NNW 12 | NNW 12 |
| kJ | 273 | 225 | 7 | 525 | 322 | 237 | 554 | 373 | 248 | 101 | 40 | 80 | 39 | 25 | 64 | 820 | 787 | 680 | 518 |
Swell 2 Height (m) Direction Period (s) | N 8 | N 8 | — | — | NNW 11 | NNW 11 | — | W 12 | W 11 | W 10 | NW 10 | N 6 | N 6 | NNW 8 | NNW 16 | — | — | N 12 | N 12 |
| kJ | 5 | 5 | — | — | 95 | 256 | — | 3 | 2 | 2 | 44 | 1 | 1 | 7 | 102 | — | — | 11 | 11 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | NNW 11 | NW 10 | — | — | — | — | W 7 | N 6 | — | NW 18 | WNW 7 | — | — | — | — |
| kJ | — | — | — | — | 48 | 53 | — | — | — | — | 1 | 2 | — | 12 | 11 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | WNW 9 | N 8 | — | N 7 | — | — | ENE 3 | ENE 3 | — | E 3 | E 4 | E 4 | E 4 | E 4 | ENE 3 | ENE 3 | E 4 |
| kJ | — | — | 440 | 135 | — | 74 | — | — | 3 | 2 | — | 5 | 10 | 9 | 13 | 7 | 2 | 4 | 7 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 23 | 17 | 0 | 29 | 0 | 0 | 0 | 0 | 1 | 29 | 165 | 165 | 0 | 0 | 0 | 29 | 0 |
Best forecast wave conditions in Asturias | |||||||||||||||||||
Best forecast wave conditions in Spain (Europe) | |||||||||||||||||||
Header Global | |||||||||||||||||||
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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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