Surf Forecasts:
El Mongol surf forecast from 6 Sep 2026:
- Best quality surf: Sunday 6 Sep, 5AM (local time) - 5ft (1.6m), 12s period, NNW swell with glassy winds.
- Most powerful swell: Wednesday 9 Sep, 5PM (local time) - 5.5ft (1.7m), 12s period, NNW swell with 789 kJ wave energy.
- Next surfable swell (1★+): Sunday 6 Sep, 5AM (local time) - 5ft (1.6m), 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 Sunday (Sep 06) at 5AM. The primary swell is predicted to be 1.6m and 12s period with a secondary swell of 0.6m and 5s. 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 1.7m 12s and forecast to arrive on Wednesday (Sep 09) at 5PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 4s period and expected on Thursday (Sep 10) at 8PM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Sun 6th Sep) | 5ft (1.6m) 12s |
| Best Surf | 5AM (Sun 6th Sep) | 5ft (1.6m) 12s |
| Most Powerful | 5PM (Wed 9th Sep) | 5.5ft (1.7m) 12s |
Table - best surf conditions forecast for El Mongol over the next 16 days.
The Lowdown
Alright, Rusty here. Let's take a look at what's cooking for El Mongol.
The 16-day window kicks off with a bit of a slow start, but we've got a nice run of surf building through the middle of the week and into the weekend. The standout session is shaping up to be Wednesday morning, the 9th of September. We’re looking at a solid 6ft of swell from the NNW, with a combined energy of 693 – that's a moderate pulse of energy. The wind is glassy, coming from the WSW at just 6 mph, so it’s going to be clean as a whistle. That’s a proper morning for a reef break, and it’s the biggest, cleanest surf on offer.
We get things rolling Sunday morning, the 6th, with a 5ft NNW swell, but it’s cross-on and a bit messy. The morning of the 7th is interesting with glassy conditions and 3ft of swell from the NW, but the period is a long 13 seconds, so it’s a groundswell. That’s good for shape and energy, but on a reef, it should work well. Tuesday morning, the 8th, is glassy again with 4ft from the NW.
Then we hit that Wednesday the 9th peak. The afternoon on the 9th also sees a good 6ft from the NNW, but with a light cross-on wind, it won’t be quite as clean as the morning. Thursday the 10th morning is still solid at 5ft from the NNW with glassy conditions—another good window.
Friday the 11th and Saturday the 12th drop off considerably, with much smaller surf and poor conditions. There’s a bit of a gap there. The surf picks back up again on Sunday the 13th with a clean 5ft from the NNW in the afternoon, but with a risk of thunderstorms and a gentle breeze.
The second week is more of a mixed bag. Monday the 14th is small and ordinary. Tuesday the 15th morning is glassy but only 3ft from the NNW. The best bet in the second week looks like Wednesday the 16th morning with a glassy 4ft from the NW and a 13-second period, giving it a nice long-period groundswell feel. The energy is moderate at 513. Friday the 18th and Saturday the 19th also look good with clean, consistent 4ft from the NNW and light winds. The run continues through Sunday the 20th with more of the same.
Best call: Get on the water Wednesday morning, the 9th of September. That 6ft NNW swell with glassy wind is the pick of the bunch. The reef should handle that size well.
Watch out for: The long-period swells (13 seconds) on the 7th and 16th travel deep and fast, which is great for a reef break like this, but expect longer lulls between sets. On the 13th, there’s a risk of storms, so keep an eye on the sky.
Crowds at El Mongol can be an issue, so get in early for the glassy sessions.
Rusty.
Short Range ForecastSome drizzle, heaviest during Sat night. Warm (max 25°C on Sun afternoon, min 16°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 13mm), heaviest on Tue night. Warm (max 21°C on Fri afternoon, min 13°C on Thu morning). Wind will be generally light. | ||||||||||||||||||
Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | ||||||||||||||
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 12 | NNW 11 | NNW 10 | NW 10 | NW 13 | WNW 12 | NW 11 | NW 10 | NW 9 | NW 8 | NNW 8 | NNW 12 | NNW 11 | NNW 10 | NNW 10 | NNW 9 | NW 8 | NW 8 | NW 8 |
Wave Graph  | |||||||||||||||||||
 kJ | 802 | 441 | 288 | 134 | 249 | 371 | 273 | 225 | 162 | 742 | 443 | 789 | 743 | 451 | 275 | 127 | 118 | 149 | 101 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | on | glassy | glassy | cross-on | glassy | glassy | on | on | glassy | cross-on | glassy | glassy | cross | off | glassy | cross | glassy |
High Tide | 00:18AM3.07m | 12:59PM3.31m | 1:49AM3.19m | 2:18PM3.54m | 2:58AM3.44m | 3:19PM3.83m | 3:51AM3.71m | 4:09PM4.09m | 4:35AM3.93m | 4:51PM4.28m | 5:15AM4.08m | 5:30PM4.36m | |||||||
Low Tide | 6:26AM1.59m | 7:34PM1.41m | 8:01AM1.43m | 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 | |||||||
 |  | |  | | | |  |  |  | | |  | | | | | | | |
 | — | 7:50 | — | — | 7:52 | — | — | 7:52 | — | — | 7:54 | — | — | 7:54 | — | — | 7:56 | — | — |
 | 8:52 | — | 8:50 | — | — | 8:47 | — | — | 8:45 | — | — | 8:44 | — | — | 8:43 | — | — | 8:40 | — |
mm | 1 | — | — | — | — | — | — | — | — | 13 | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 24 | 25 | 21 | 21 | 23 | 20 | 20 | 24 | 19 | 17 | 19 | 18 | 17 | 20 | 18 | 18 | 21 | 19 |
Feels °C | 22 | 24 | 25 | 22 | 22 | 23 | 22 | 22 | 24 | 19 | 17 | 17 | 17 | 17 | 18 | 18 | 18 | 20 | 19 |
Swell 1 Height (m) Direction Period (s) | NNW 12 | NNW 11 | NNW 10 | WNW 6 | NW 9 | WNW 12 | NW 11 | NW 10 | NW 9 | — | NNW 8 | NNW 12 | NNW 11 | NNW 10 | NNW 10 | NNW 9 | NW 8 | NW 8 | NW 8 |
| kJ | 802 | 441 | 288 | 57 | 112 | 371 | 273 | 225 | 162 | — | 443 | 789 | 743 | 451 | 275 | 127 | 118 | 149 | 101 |
Swell 2 Height (m) Direction Period (s) | ENE 5 | NE 4 | NE 5 | NW 10 | NW 13 | NNW 8 | N 8 | — | — | — | NNW 11 | N 7 | — | — | W 11 | NW 12 | NNW 9 | N 8 | N 8 |
| kJ | 26 | 9 | 7 | 134 | 249 | 24 | 5 | — | — | — | 173 | 33 | — | — | 2 | 6 | 28 | 12 | 12 |
Swell 3 Height (m) Direction Period (s) | N 12 | N 11 | NE 5 | WNW 16 | NNE 4 | NE 4 | — | — | — | — | NNW 12 | NW 8 | — | — | — | W 10 | — | N 5 | — |
| kJ | 26 | 21 | 7 | 103 | 2 | 1 | — | — | — | — | 77 | 94 | — | — | — | 2 | — | 5 | — |
Wind waves Height (m) Direction Period (s) | — | — | WNW 3 | — | — | — | — | — | — | NW 8 | — | NE 6 | — | — | NE 4 | — | — | — | — |
| kJ | — | — | 4 | — | — | — | — | — | — | 742 | — | 31 | — | — | 3 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 5 | 12 | 0 | 0 | 17 | 0 | 0 | 5 | 316 | 0 | 29 | 0 | 0 | 19 | 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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