Surf Forecasts:
Conchalio surf forecast from 17 Aug 2026:
- Best quality surf: Monday 17 Aug, 9PM (local time) - 3.5ft (1.1m), 14s period, SW swell with cross-offshore winds.
- Most powerful swell: Wednesday 19 Aug, 12AM (local time) - 3.5ft (1.1m), 16s period, SW swell with 573 kJ wave energy.
- Next surfable swell (1★+): Monday 17 Aug, 6AM (local time) - 3.5ft (1.1m), 14s period with SW swell.
Best Forecast Surf Conditions for Conchalio this week:
The surf forecast for Conchalio over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Aug 17) at 6AM. The primary swell is predicted to be 1.1m and 14s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Conchalio in the next 16 days are 1.1m 16s and forecast to arrive on Wednesday (Aug 19) at 12AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 8s period and expected on Thursday (Aug 20) at 9AM.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Mon 17th Aug) | 3.5ft (1.1m) 14s |
| Best Surf | 9PM (Mon 17th Aug) | 3.5ft (1.1m) 14s |
| Most Powerful | 12AM (Wed 19th Aug) | 3.5ft (1.1m) 16s |
Table - best surf conditions forecast for Conchalio over the next 16 days.
The Lowdown
G’day, Rusty here. We’ve got a solid run of clean, manageable surf shaping up for Conchalio. The water temp anomaly's about average for this time of year, so nothing unusual to worry about there. The next couple of weeks are looking promising, with a few standout mornings where everything lines up.
We start off Monday the 17th with a morning session that’s actually worth getting up for. Swell’s pushing in from the SW at a consistent 3 ft, with a nice long 14-second period – that’s proper groundswell energy, giving the waves some real push and shape. The wind’s light cross-off from the north at 3 mph, keeping the surface clean. Combined energy is solid at 416 (moderate wave energy). It’s not huge, but the quality’s there. Afternoon turns onshore and messy, so make it a dawn patrol.
Tuesday the 18th is where it gets tasty. Morning glass-off conditions, wind dead calm, and the swell holds at 4 ft from the SW with that same 14-second period. Energy bumps up to 521. That’s clean, lined-up surf with barely a ripple on it. Light crowds possible here, but with conditions like that, it’ll be worth sharing a few waves. Afternoon goes onshore again, no good.
Wednesday the 19th keeps the run going. Morning glassy again, wind light from the north at 3 mph, swell dropping slightly to 3 ft but from the SSW with a 15-second period – that long period groundswell will wrap in nicely. Energy’s 427. Fun, clean little waves for a long session. Afternoon onshore again.
Thursday the 20th and Friday the 21st are smaller. Thursday morning clean with 2 ft SW swell, 14-second period, glassy conditions. Friday morning glassy but the swell drops to 3 ft from the south with a short 8-second period – less exciting, energy down to 149. Still surfable but nothing to write home about.
Saturday the 22nd morning brings a bit more life. Swell back to 3 ft from the south, 11-second period, cross-off breeze from the east at 3 mph. Energy jumps back up to 461. Decent, clean waves again.
Sunday the 23rd morning is a real highlight. Clear skies, light cross-off from the ESE, swell 3 ft from the SSW with a 14-second period, and energy cranks up to 538. Very clean, high-quality surf for the size.
Monday the 24th through Wednesday the 26th mornings stay clean but the swell drops a bit – around 2 ft to 2 ft, with periods from 15 to 18 seconds. Glassy or light offshore winds. The long periods mean the waves have good shape at this point break setup. Energy’s moderate. Good for a longboard or a fun morning cruise.
Thursday the 27th morning is small – 1 ft from the SSW, 18-second period, clean cross-off. Energy at 265. Not much push but glassy.
Friday the 28th morning sees a jump to 3 ft SW swell, 16-second period, but the wind’s onshore from the WSW. Conditions are a bit dicey, so this one’s a maybe.
Now, the standout. Saturday the 29th morning is the one to circle. Swell jumps to 4 ft from the SSW, 16-second period – that’s serious groundswell. Conditions glassy with just a slight air, and combined energy rockets to 1013 (strong wave energy). This is excellent for experienced surfers – still clean, powerful, and running nicely. Afternoon goes onshore, but that morning session is the pick of the entire forecast.
Sunday the 30th morning holds similar size at 5 ft from the SSW, 16-second period, glassy with light ESE wind. Energy at 933. Another excellent morning for those who can handle it. Monday the 31st and Tuesday the 1st of September mornings stay clean with 4 ft and 4 ft SSW swells, 14-second period, glassy conditions. Solid end to the window.
Overall, the best on offer are the mornings of Tuesday the 18th and Saturday the 29th – clean, glassy, good groundswell energy, and well-shaped waves at Conchalio.
Rusty.
Short Range ForecastMostly dry. Warm (max 33°C on Tue morning, min 26°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 24mm), heaviest during Fri night. Warm (max 33°C on Thu morning, min 24°C on Fri night). Wind will be generally light. | ||||||||||||||||||
Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | ||||||||||||||
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) | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 16 | SSW 15 | SSW 14 | SSW 14 | SW 14 | SW 13 | SSW 13 | S 8 | S 8 | S 11 | S 11 | S 11 | SSW 14 |
Wave Graph | |||||||||||||||||||
543 | 395 | 456 | 431 | 437 | 390 | 573 | 382 | 367 | 257 | 186 | 178 | 147 | 80 | 74 | 227 | 223 | 182 | 239 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | on | cross-off | glassy | on | cross-off | glassy | on | cross-off | glassy | on | glassy | glassy | cross-on | cross-off | cross-off | cross-on | cross-off |
High Tide | 5:46AM2.20m | 6:04PM1.95m | 6:29AM2.12m | 6:48PM1.83m | 7:12AM2.00m | 7:33PM1.69m | 7:58AM1.88m | 8:22PM1.57m | 8:48AM1.78m | 9:17PM1.47m | 9:45AM1.71m | 10:21PM1.42m | |||||||
Low Tide | 11:29PM0.10m | 12:03PM0.20m | 00:11AM0.20m | 12:48PM0.29m | 00:52AM0.32m | 1:34PM0.39m | 1:35AM0.44m | 2:24PM0.50m | 2:22AM0.55m | 3:19PM0.58m | 3:15AM0.63m | 4:22PM0.62m | |||||||
— | 5:43 | — | — | 5:43 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | |
— | — | 6:16 | — | — | 6:16 | — | — | 6:15 | — | — | 6:15 | — | — | 6:15 | — | — | 6:15 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 5 | 17 | — | 2 | 2 |
Temp °C | 28 | 32 | 32 | 28 | 33 | 30 | 27 | 33 | 30 | 28 | 33 | 31 | 29 | 31 | 30 | 25 | 32 | 30 | 26 |
Feels °C | 29 | 33 | 33 | 30 | 34 | 33 | 31 | 35 | 33 | 33 | 34 | 33 | 34 | 34 | 34 | 28 | 34 | 33 | 29 |
Swell 1 Height (m) Direction Period (s) | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 16 | SSW 15 | SSW 14 | SSW 14 | SE 8 | SW 13 | S 8 | S 8 | S 8 | S 11 | S 11 | S 11 | S 11 |
543 | 395 | 456 | 431 | 437 | 390 | 573 | 382 | 367 | 257 | 140 | 178 | 58 | 80 | 74 | 227 | 223 | 182 | 141 | |
Swell 2 Height (m) Direction Period (s) | SE 6 | SSE 8 | SSE 7 | S 7 | S 8 | S 8 | S 8 | SSE 8 | S 8 | SSW 9 | SW 14 | S 8 | SSW 13 | SE 7 | SE 7 | SSW 15 | SSW 14 | SSW 14 | SSW 14 |
25 | 93 | 96 | 86 | 76 | 100 | 80 | 75 | 49 | 58 | 186 | 49 | 147 | 54 | 46 | 193 | 133 | 168 | 239 | |
Swell 3 Height (m) Direction Period (s) | S 11 | S 11 | S 11 | S 11 | S 10 | S 10 | SSW 9 | SSW 9 | SSW 9 | S 8 | SSW 10 | SSW 10 | SE 6 | SSW 11 | SSW 11 | SW 21 | SSW 16 | SE 7 | SE 6 |
62 | 21 | 21 | 20 | 8 | 8 | 16 | 45 | 54 | 34 | 36 | 37 | 32 | 69 | 68 | 18 | 105 | 30 | 14 | |
Wind waves Height (m) Direction Period (s) | WSW 7 | — | — | — | — | — | — | NNW 3 | — | — | NE 3 | SSE 7 | — | — | — | SE 4 | — | — | — |
9 | — | — | — | — | — | — | 1 | — | — | 2 | 81 | — | — | — | 15 | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 136 | 0 | 0 | 5 | 0 | 0 | 483 | 0 | 0 | 483 | 0 | 0 | 313 | 0 | 0 | 313 | 0 |
Best forecast wave conditions in El-Salvador - Costa del Balsamo | |||||||||||||||||||
Best forecast wave conditions in El Salvador | |||||||||||||||||||
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Information about the Conchalio Surf forecast
The above surf forecast table for Conchalio provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Conchalio can be found by selecting the local surf guide option on the grey menu. Our Conchalio 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 (Conchalio) 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 Conchalio 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.
Conchalio is 2 km (1 miles) from the city of La Libertad. If you plan a holiday in El-Salvador - Costa del Balsamo, look for hotels and other accommodation in La Libertad. La Libertad has rooms for a wide range of budgets as well as car hire and transport links.











