
Surf Forecasts:
El Mongol surf forecast from 13 Sep 2026:
- Best quality surf: Friday 18 Sep, 5PM (local time) - 7.5ft (2.3m), 14s period, NNW swell with cross-offshore winds.
- Most powerful swell: Friday 18 Sep, 11PM (local time) - 8ft (2.5m), 14s period, NNW swell with 2,736 kJ wave energy.
- Next surfable swell (1★+): Sunday 13 Sep, 5AM (local time) - 4.5ft (1.3m), 13s 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 13) at 5AM. The primary swell is predicted to be 1.3m and 13s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at El Mongol in the next 16 days are 2.5m 14s and forecast to arrive on Friday (Sep 18) at 11PM. Winds are predicted to be offshore 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 (Sep 13) at 5PM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Sun 13th Sep) | 4.5ft (1.3m) 13s |
| Best Surf | 5PM (Fri 18th Sep) | 7.5ft (2.3m) 14s |
| Most Powerful | 11PM (Fri 18th Sep) | 8ft (2.5m) 14s |
Table - best surf conditions forecast for El Mongol over the next 16 days.
The Lowdown
Alright, let's get into it. Rusty here, and I've got a proper look at what's coming down the pipe for the next couple of weeks at El Mongol. This spot is a reef setup and it's about to fire, but you gotta pick your moments.
First up, a quick word on the water. It's doing its thing, feeling pretty standard for this time of year, nothing too wild temperature-wise.
So, we've got a bit of a slow start. Sunday the 13th kicks things off with some clean, waist-to-chest high swell from the NNW. It's got a decent 12-second period and the wind is a light cross-off, so it's totally rideable. The energy is moderate (608), and it's a nice way to ease into the week. Monday the 14th sees it drop a notch, still clean with a light breeze, but the swell backs off a bit.
Tuesday the 15th is a write-off. The wind shifts onshore and the swell gets sloppy and small. Don't even bother. Wednesday the 16th morning though? Magic. A brief moment of glassy conditions with a fresh 5 ft NW swell. The wind is dead calm out of the SSW, making it glassy. That's a window to sneak a session. The afternoon gets a bit messy again.
Now, here we go. Thursday the 17th morning is your first real standout. The wind goes glassy again out of the NW, and the swell is a solid 6 ft from the NNW with a 10-second period. The energy is pumping hard (795). This is clean, punchy reef surf. Get on it. The afternoon brings a cross-onshore mess, so make it a dawn patrol.
Friday the 18th morning is glassy again, smaller at 4 ft, but still fun. But hold onto your board, because Friday afternoon is where it gets serious. We’ve got a 8 ft NNW groundswell rolling in with a 14-second period. The wind is a light cross-off, and the wave energy is a massive 1945. This is heavy, powerful, expert-level surf. Tides are gonna be the key here at a reef, but if you've got the skill, this is the pick for the experienced crew. Saturday the 19th keeps the goodness going with glassy 7 ft waves in the morning and clean 6 ft in the afternoon.
Sunday the 20th and Monday the 21st are the absolute peak of the window. We're looking at 8 ft to 8 ft of long-period NNW groundswell, 14 to 15 seconds between sets. The energy readings are in the thousands (2419 and 2266). The wind is a steady light cross-off from the east. This is world-class, powerful, hollow reef territory. If you see a forecast like this and you're not an expert, stay on the beach and watch. For the big dogs, this is as good as it gets.
The second week settles down but stays quality. Tuesday the 22nd and Wednesday the 23rd have clean 6 ft to 4 ft surf, perfect for a high-performance longboard or a fish. The crowds are "often" here, so expect some company, especially on these good days. Thursday the 24th afternoon has a weird 6 ft swell from the NE with a short period.
Towards the end, Friday the 25th and Saturday the 26th see a bigger but messier ENE swell. The wind is onshore or cross-onshore, creating bumpy conditions. Saturday the 26th morning though is glassy with a big 8 ft swell, but the short 8-second period might make it fat and close out. It's a kite surfer's dream, more than a paddle surfer's. Then it all fades out to tiny, weak waves from the 27th onward.
Bottom line: Focus on the dawn patrols on Thursday 17th morning, and then the magic window from Friday 18th afternoon through Monday 21st. That's your time to score. The rest is fun filler or a miss.
Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Mon afternoon, min 15°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 14mm), heaviest on Tue night. Warm (max 20°C on Tue night, min 14°C on Thu night). Wind will be generally light. | ||||||||||||||||||
Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | ||||||||||||||
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 14 | NW 12 | NNW 12 | NNW 12 | NW 11 | NW 11 | NW 10 | NNW 9 | WNW 5 | NNW 6 | NW 8 | NNW 10 | NNW 11 | NNW 10 | NNW 10 | NNW 9 | NNW 9 | NNW 14 | NNW 14 |
Wave Graph | |||||||||||||||||||
232 | 597 | 647 | 449 | 268 | 220 | 137 | 53 | 61 | 150 | 239 | 501 | 1006 | 661 | 448 | 295 | 276 | 1945 | 2518 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross-off | off | cross-off | cross-off | glassy | cross-on | on | cross-on | glassy | cross-on | glassy | glassy | cross-on | cross-off | glassy | cross-off | off |
High Tide | 6:26AM4.12m | 6:42PM4.21m | 7:00AM4.02m | 7:16PM4.00m | 7:33AM3.85m | 7:50PM3.73m | 8:08AM3.64m | 8:26PM3.44m | 8:46AM3.39m | 9:09PM3.14m | 9:35AM3.15m | 10:10PM2.88m | |||||||
Low Tide | 00:17AM0.41m | 12:29PM0.49m | 00:49AM0.53m | 1:03PM0.63m | 1:21AM0.72m | 1:37PM0.84m | 1:53AM0.97m | 2:12PM1.09m | 2:27AM1.24m | 2:52PM1.37m | 3:05AM1.52m | 3:42PM1.63m | 3:59AM1.78m | ||||||
— | 7:58 | — | — | 8:00 | — | — | 8:00 | — | — | 8:02 | — | — | 8:03 | — | — | 8:03 | — | — | |
8:38 | — | 8:37 | — | — | 8:35 | — | — | 8:34 | — | — | 8:31 | — | — | 8:30 | — | — | 8:28 | — | |
mm | — | — | — | — | — | — | — | — | — | 8 | 2 | 1 | 3 | — | — | — | — | — | — |
Temp °C | 19 | 19 | 24 | 20 | 22 | 26 | 22 | 22 | 22 | 20 | 17 | 20 | 18 | 17 | 19 | 18 | 17 | 20 | 18 |
Feels °C | 19 | 19 | 24 | 20 | 21 | 26 | 22 | 21 | 21 | 21 | 17 | 19 | 18 | 17 | 17 | 18 | 17 | 19 | 18 |
Swell 1 Height (m) Direction Period (s) | NW 10 | NW 12 | NNW 12 | NNW 12 | NW 11 | NW 11 | NW 10 | NNW 9 | NNW 9 | NW 10 | NW 8 | NNW 10 | NNW 11 | NNW 10 | NNW 10 | NNW 9 | NNW 9 | NNW 14 | NNW 14 |
163 | 597 | 647 | 449 | 268 | 220 | 137 | 53 | 30 | 94 | 239 | 501 | 1006 | 661 | 448 | 295 | 276 | 1945 | 2518 | |
Swell 2 Height (m) Direction Period (s) | NNW 14 | N 12 | N 12 | N 12 | N 11 | N 11 | ENE 4 | ENE 4 | NW 11 | — | NNE 6 | NW 13 | N 12 | N 9 | N 10 | N 6 | NNW 12 | — | — |
232 | 11 | 11 | 11 | 9 | 9 | 7 | 1 | 43 | — | 39 | 45 | 11 | 134 | 17 | 16 | 127 | — | — | |
Swell 3 Height (m) Direction Period (s) | N 12 | — | — | — | — | — | — | NW 12 | — | — | WNW 10 | — | — | — | — | NNW 10 | NW 16 | — | — |
11 | — | — | — | — | — | — | 23 | — | — | 10 | — | — | — | — | 32 | 66 | — | — | |
Wind waves Height (m) Direction Period (s) | E 4 | E 4 | ENE 4 | ENE 4 | ENE 4 | ENE 4 | — | WNW 4 | WNW 5 | NNW 6 | — | N 6 | N 6 | — | — | — | — | — | — |
33 | 17 | 25 | 13 | 9 | 13 | — | 14 | 61 | 150 | — | 43 | 60 | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 42 | 325 | 131 | 0 | 180 | 0 | 0 | 17 | 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.










