Surf Forecasts:
El Mongol surf forecast from 15 Sep 2026:
- Best quality surf: Friday 18 Sep, 5PM (local time) - 10ft (3.0m), 16s period, NNW swell with cross-offshore winds.
- Most powerful swell: Friday 18 Sep, 8PM (local time) - 10ft (3.0m), 15s period, NNW swell with 3,805 kJ wave energy.
- Next surfable swell (1★+): Wednesday 16 Sep, 2AM (local time) - 4.5ft (1.4m), 6s 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 (Sep 16) at 2AM. The primary swell is predicted to be 1.4m and 6s period with a secondary swell of 0.7m 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 3.0m 15s and forecast to arrive on Friday (Sep 18) at 8PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 5s period and expected on Sunday (Sep 20) at 8PM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Wed 16th Sep) | 4.5ft (1.4m) 6s |
| Best Surf | 5PM (Fri 18th Sep) | 10ft (3.0m) 16s |
| Most Powerful | 8PM (Fri 18th Sep) | 10ft (3.0m) 15s |
Table - best surf conditions forecast for El Mongol over the next 16 days.
The Lowdown
Alright, let’s switch it up for the imperial crew. Rusty here, looking at El Mongol.
Water temp is about 70°F, a touch warmer than normal for this time of year – feels nice, especially when the wind goes glassy.
We start slow. Tuesday the 15th is flat and messy – skip it. Wednesday the 16th morning gets going with 5ft swell from the NNW at 8 seconds and glassy wind. Clean, not big, but paddlable. The energy’s moderate (418).
Thursday the 17th morning is a solid call: 6ft from the NNW at 11 seconds, glassy, calm wind. Energy is moderate to strong (746). Clean lines for intermediate surfers.
Friday the 18th morning is still good – 6ft from the NNW at 11 seconds, glassy. Energy strong (1009). But the real standout is Friday afternoon: 10ft from the NNW at a very long 16-second period. Energy is intense (3740). Clean, cross-off wind. This is expert-only territory. The long period will make it grind heavy on the reef.
Saturday the 19th morning stays at 7ft at 13 seconds, clean and cross-off. For experienced surfers. The afternoon drops to 6ft but stays clean.
From Sunday the 21st through Tuesday the 23rd morning, we’ve got fun waves in the 4ft to 5ft range, glassy or clean. Good for intermediates.
Then it goes quiet from the 26th of September through the 29th morning – small, weak waves under 3ft, energy under 200. Not worth it.
But Wednesday the 30th morning brings it back: 7ft from the NNW at 11 seconds, glassy, strong energy (949). Another very good session, clean and punchy.
Best of the best: Friday the 18th afternoon – 10ft, 16-second groundswell, clean cross-off wind. Experts only. If that’s too much, go for Thursday the 17th morning or Wednesday the 30th morning.
Crowds are likely here, especially on the good days. It’s a consistent reef with solid shape when it’s on.
Rusty.
Short Range ForecastModerate rain (total 10mm), heaviest on Tue night. Warm (max 22°C on Tue afternoon, min 14°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 22°C on Sun afternoon, min 13°C on Sat morning). Wind will be generally light. | ||||||||||||||||||||
Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | |||||||||||||||
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 5 | WNW 5 | NNW 6 | NNW 8 | NW 10 | NNW 11 | NNW 11 | NNW 10 | NW 9 | NNW 11 | NNW 16 | NNW 14 | NNW 13 | NNW 13 | NNW 12 | NNW 11 | NW 11 | NNW 13 | NNW 12 | NNW 12 | NNW 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 83 | 43 | 160 | 242 | 625 | 814 | 610 | 448 | 253 | 831 | 3740 | 3040 | 1657 | 1189 | 789 | 595 | 458 | 260 | 636 | 702 | 472 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | glassy | glassy | cross-on | glassy | glassy | cross-on | cross | glassy | cross-off | glassy | cross-off | cross-off | cross-off | cross-off | cross-off | off | glassy | cross-off | off |
High Tide | 7:50PM3.73m | 8:08AM3.64m | 8:26PM3.44m | 8:46AM3.39m | 9:09PM3.14m | 9:35AM3.15m | 10:10PM2.88m | 10:47AM2.96m | 11:44PM2.74m | 12:24PM2.93m | 1:20AM2.81m | 1:46PM3.08m | 2:26AM3.02m | ||||||||
Low Tide | 1:37PM0.84m | 1:53AM0.97m | 2:12PM1.09m | 2:27AM1.24m | 2:52PM1.37m | 3:05AM1.52m | 3:42PM1.63m | 3:59AM1.78m | 5:02PM1.83m | 5:33AM1.93m | 7:05PM1.82m | 7:30AM1.84m | 8:22PM1.60m | ||||||||
 |  |  |  | |  |  |  | | | | | | | | | | | | | | |
 | 8:00 | — | — | 8:02 | — | — | 8:03 | — | — | 8:03 | — | — | 8:04 | — | — | 8:06 | — | — | 8:07 | — | — |
 | — | 8:34 | — | — | 8:31 | — | — | 8:30 | — | — | 8:28 | — | — | 8:25 | — | — | 8:23 | — | — | 8:22 | — |
mm | — | — | 7 | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 22 | 19 | 18 | 20 | 19 | 17 | 20 | 18 | 17 | 19 | 18 | 17 | 20 | 18 | 17 | 22 | 19 | 21 | 25 | 21 |
Feels °C | 20 | 21 | 19 | 19 | 19 | 19 | 17 | 19 | 18 | 16 | 18 | 18 | 17 | 18 | 17 | 16 | 21 | 19 | 20 | 23 | 21 |
Swell 1 Height (m) Direction Period (s) | NNW 9 | NNW 9 | NNW 6 | NNW 8 | NW 10 | NNW 11 | NNW 11 | NNW 10 | NW 9 | NNW 11 | NNW 16 | NNW 14 | NNW 13 | NNW 13 | NNW 12 | NNW 11 | NW 11 | NW 10 | NNW 12 | NNW 12 | NNW 12 |
| kJ | 53 | 30 | 160 | 242 | 625 | 814 | 610 | 448 | 253 | 831 | 3740 | 3040 | 1657 | 1189 | 789 | 595 | 458 | 260 | 636 | 702 | 472 |
Swell 2 Height (m) Direction Period (s) | NW 12 | NW 11 | NW 10 | NW 11 | N 6 | N 6 | N 10 | N 10 | N 6 | NNW 16 | — | — | — | — | N 12 | N 11 | N 11 | NNW 13 | N 12 | — | NE 5 |
| kJ | 23 | 43 | 92 | 92 | 43 | 50 | 136 | 8 | 16 | 155 | — | — | — | — | 26 | 21 | 86 | 253 | 24 | — | 14 |
Swell 3 Height (m) Direction Period (s) | ENE 4 | WNW 8 | NW 10 | NW 10 | N 10 | — | — | — | NNW 10 | N 11 | — | — | — | — | — | — | — | N 10 | — | — | N 12 |
| kJ | 1 | 12 | 64 | 84 | 16 | — | — | — | 32 | 23 | — | — | — | — | — | — | — | 29 | — | — | 11 |
Wind waves Height (m) Direction Period (s) | WNW 5 | WNW 5 | — | — | — | — | — | — | — | — | — | — | — | ENE 4 | E 4 | E 4 | ENE 5 | ENE 5 | NE 5 | NE 5 | — |
| kJ | 83 | 42 | — | — | — | — | — | — | — | — | — | — | — | 15 | 33 | 24 | 56 | 82 | 23 | 24 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 78 | 12 | 0 | 0 | 29 | 0 | 0 | 17 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 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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