Surf Forecasts:
El Mongol surf forecast from 20 Aug 2026:
- Best quality surf: Thursday 20 Aug, 11AM (local time) - 3.5ft (1.1m), 8s period, NW swell with glassy winds.
- Most powerful swell: Thursday 20 Aug, 11PM (local time) - 6ft (1.9m), 11s period, NNW swell with 784 kJ wave energy.
- Next surfable swell (1★+): Thursday 20 Aug, 11AM (local time) - 3.5ft (1.1m), 8s 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 Thursday (Aug 20) at 11AM. The primary swell is predicted to be 1.1m and 8s period with a secondary swell of 0.7m and 11s. 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 1.9m 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 1.6m 6s period and expected on Saturday (Aug 22) at 5PM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11AM (Thu 20th Aug) | 3.5ft (1.1m) 8s |
| Best Surf | 11AM (Thu 20th Aug) | 3.5ft (1.1m) 8s |
| Most Powerful | 11PM (Thu 20th Aug) | 6ft (1.9m) 11s |
Table - best surf conditions forecast for El Mongol over the next 16 days.
The Lowdown
Alright folks, Rusty here with a look at what's shaping up for El Mongol over the next couple of weeks.
We've got a bit of a slow start, but there's some real quality brewing for the patient surfer. The water is sitting at a touch warmer than normal for this time of year, which is always a nice bonus.
The first real action to get excited about is on Thursday, the 27th of August. Thursday morning is looking like the standout of the whole run. We've got a solid 8ft swell rolling in from the WNW, with a period of 9 seconds. The energy is strong at 840, and the wind is dead glassy from the SSW. This is going to be clean, powerful, and offer some proper shape at this reef. This is the one to circle.
Thursday afternoon gets a bit more size, pushing 8ft NW swell, but that onshore wind kicks in, making it a bit of a mess. That's expert territory for sure, but the morning is the real gem.
After that, things drop off but stay rideable. Friday the 28th and Saturday the 29th have some cross-shore winds, making it tricky. The good news is that by Sunday the 30th of August, the wind goes glassy again on the morning with a clean 4ft NNW swell, offering a nice, clean session.
Looking further ahead, there's a promising pulse on the 31st of August. The Monday afternoon shows a chunky 8ft NW swell with a very long period of 12 seconds, packing a massive 1599 energy. That's a lot of power, but that long period might make it a bit too straight for the beach, though it's perfect for a reef like El Mongol. The wind is onshore though, so it's a bit of a gamble.
The first of September then brings a clean morning with the wind glassy again, offering a solid 6ft NW swell (11-second period, 719 energy). That's another very good session.
After that, the swell fades out through the second week, with mostly small, weak waves and poor conditions. There's a rogue 7ft ENE swell on the 4th of September, but the period is a short 6 seconds and the wind is onshore, so it's a bit of a novelty.
So, to sum it up: the absolute best of the bunch is Thursday morning, August 27th. Get on it. The 1st of September morning is also a cracking option. The rest is a waiting game.
Rusty.
Short Range ForecastLight rain (total 5mm), mostly falling on Thu morning. Warm (max 23°C on Sat afternoon, min 15°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 3mm), mostly falling on Mon night. Warm (max 29°C on Mon afternoon, min 16°C on Tue morning). Wind will be generally light. | ||||||||||||||||||||
Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | |||||||||||||||
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) | NW 8 | NW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 9 | NNW 8 | ENE 6 | ENE 6 | NNW 7 | NNE 7 | NE 6 | N 7 | W 5 | WNW 6 | WNW 7 | WNW 8 | NW 9 | WNW 8 | WNW 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 176 | 392 | 741 | 698 | 687 | 394 | 190 | 125 | 88 | 43 | 51 | 91 | 15 | 45 | 64 | 45 | 72 | 95 | 43 | 137 | 319 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | cross | cross-on | cross-on | off | cross-off | cross-off | cross-off | glassy | glassy | glassy | off | cross-on | cross-off | glassy | cross | off | glassy | glassy | cross |
High Tide | 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 | 4:33PM3.79m | 4:52AM3.65m | |||||||
Low Tide | 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 | 10:22AM1.08m | 10:47PM0.89m | ||||||||
 | |  |  |  |  | | | | |  |  | | |  | | |  | |  | | |
 | 7:31 | — | — | 7:33 | — | — | 7:33 | — | — | 7:35 | — | — | 7:35 | — | — | 7:37 | — | — | 7:39 | — | — |
 | — | — | 9:19 | — | — | 9:16 | — | — | 9:15 | — | — | 9:14 | — | — | 9:12 | — | — | 9:10 | — | — | 9:08 |
mm | 2 | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — | 2 | — | — | 1 | — | 1 | 6 |
Temp °C | 19 | 18 | 18 | 19 | 21 | 20 | 21 | 23 | 20 | 22 | 24 | 21 | 28 | 29 | 23 | 23 | 25 | 22 | 23 | 24 | 20 |
Feels °C | 21 | 19 | 19 | 18 | 19 | 20 | 19 | 21 | 19 | 23 | 25 | 23 | 27 | 29 | 24 | 24 | 24 | 23 | 23 | 23 | 21 |
Swell 1 Height (m) Direction Period (s) | NW 8 | NW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 9 | NNW 8 | ENE 6 | ENE 6 | NE 6 | NNE 7 | NE 6 | N 7 | N 6 | WNW 6 | WNW 7 | WNW 8 | NW 9 | E 4 | WNW 8 |
| kJ | 176 | 392 | 741 | 698 | 687 | 394 | 190 | 125 | 88 | 43 | 51 | 91 | 15 | 45 | 21 | 45 | 72 | 95 | 40 | 1 | 319 |
Swell 2 Height (m) Direction Period (s) | NNW 11 | N 8 | N 10 | N 10 | N 9 | NW 10 | NNW 9 | — | NNW 7 | NNW 7 | NNW 7 | NNW 7 | N 6 | NW 9 | N 14 | NNW 12 | NW 11 | NW 10 | E 4 | NNW 11 | NNW 10 |
| kJ | 103 | 44 | 34 | 33 | 171 | 163 | 32 | — | 78 | 29 | 51 | 4 | 12 | 3 | 4 | 14 | 30 | 25 | 3 | 12 | 19 |
Swell 3 Height (m) Direction Period (s) | NNW 11 | N 10 | — | — | — | — | — | — | — | N 6 | WNW 9 | W 9 | NW 7 | — | — | N 6 | N 5 | E 3 | N 12 | E 4 | NW 13 |
| kJ | 44 | 8 | — | — | — | — | — | — | — | 28 | 8 | 1 | 2 | — | — | 2 | 1 | 1 | 11 | 1 | 7 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | E 4 | ENE 6 | — | — | — | — | — | — | W 5 | — | — | — | WNW 7 | WNW 8 | — |
| kJ | — | — | — | — | — | — | 18 | 148 | — | — | — | — | — | — | 64 | — | — | — | 43 | 137 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 5 | 1 | 5 | 17 | 0 | 0 | 29 | 1 | 1 | 29 | 0 | 105 | 85 | 21 | 12 | 29 | 0 | 0 | 0 | 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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