Surf Forecasts:
Conchalio surf forecast from 16 Aug 2026:
- Best quality surf: Sunday 16 Aug, 6AM (local time) - 4.5ft (1.3m), 15s period, SW swell with cross-offshore winds.
- Most powerful swell: Sunday 16 Aug, 6AM (local time) - 4.5ft (1.3m), 15s period, SW swell with 704 kJ wave energy.
- Next surfable swell (1★+): Sunday 16 Aug, 6AM (local time) - 4.5ft (1.3m), 15s 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 Sunday (Aug 16) at 6AM. The primary swell is predicted to be 1.3m and 15s 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 1.3m 15s and forecast to arrive on Sunday (Aug 16) at 6AM. 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 Sunday (Aug 16) at 9AM.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Sun 16th Aug) | 4.5ft (1.3m) 15s |
| Best Surf | 6AM (Sun 16th Aug) | 4.5ft (1.3m) 15s |
| Most Powerful | 6AM (Sun 16th Aug) | 4.5ft (1.3m) 15s |
Table - best surf conditions forecast for Conchalio over the next 16 days.
The Lowdown
Alright, let’s get into it. The surf over the next couple of weeks is there, but it’s going to take a bit of patience to find the windows. The standout mornings are your best bet, with clean, glassy conditions and fun, rideable swell. The afternoons mostly fall apart with onshore wind, so you gotta be an early bird.
We kick things off this Sunday morning, the 16th, down at Conchalio (Guanacaste). There’s some real energy in the water, the combined swell energy is sitting at 648, which is a solid, moderate push. We’re looking at a head-high 4ft of SW swell with a 15-second period – that’s a nice, lined-up groundswell for a beach break. The wind is a light cross-offshore from the NNE, which should keep it pretty clean. This is definitely one of the better sessions on offer for the start. The water temp is about average for this time of year, so not too wild.
The afternoons on Sunday are a write-off, though – the wind swings onshore and it gets chopped up. You can sit that one out.
Monday the 17th and Tuesday the 18th have similar stories: glassy mornings with a little less size, around 3ft, and that same consistent SW swell. The energy drops a bit to the 400s, but it’s still fun, waist-to-chest high waves. The mornings are the time to be in the water. Once the sea breeze kicks in, it’s over.
Wednesday the 19th and Thursday the 20th are still in that same pattern. The swell eases slightly, down to 3ft and then 2ft by Thursday. The energy is getting weaker, down into the 200s and 300s. Still, those early glassy sessions will be worth it for a few clean ones. It’s not firing, but it’s not flat.
Friday the 21st is a bit of a dud. The morning swell drops to a weak 2ft, and the energy is only 164 – that’s about as weak as it gets. Probably not worth paddling out for much more than a splash.
Now, here’s where things pick back up. Saturday the 22nd sees a new pulse of energy, with the combined energy jumping back up to 463. The swell is back to 3ft from the S, with a 11-second period. Again, the morning glass-off looks like the call.
The following week starts to show a bit more promise, though it’s further out so I’d call it promising but less certain. There’s a standout that catches my eye on Saturday the 29th. The forecast shows a 4ft SSW groundswell with a 15-second period, and the energy is a solid 663. Calm, glassy conditions are expected for the morning, and that has “best on offer” written all over it. Even with a risk of a t-storm, that calm wind is a huge positive. This is the one I’d circle on the calendar.
The Sunday the 30th morning also looks really good, with similar 4ft SSW swell and glassy conditions. The energy stays consistent around 596. And then to finish things off, Monday the 31st morning keeps the clean conditions with 3ft of SSW swell and cross-offshore winds showing 603 energy. That’s another good one.
So, keep your eyes on those late-month mornings. The 29th and 30th are your best shots for clean, quality waves. The afternoons are mostly blown out, so stick to the dawn patrol.
Rusty
Short Range ForecastSome drizzle, heaviest during Sat night. Warm (max 34°C on Sun morning, min 25°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 18mm), heaviest on Fri afternoon. Warm (max 33°C on Wed morning, min 25°C on Tue night). Wind will be generally light. | ||||||||||||||||||
Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | ||||||||||||||
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 16 | SW 15 | SW 14 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SSW 14 | SSW 16 | SSW 15 | SW 15 | SSW 14 | SW 14 | SW 13 | SSW 13 | SW 14 | SSW 11 | SSW 15 |
Wave Graph | |||||||||||||||||||
883 | 623 | 536 | 543 | 395 | 456 | 368 | 373 | 352 | 436 | 387 | 309 | 261 | 186 | 178 | 147 | 95 | 103 | 231 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-on | cross-off | glassy | on | off | glassy | cross-on | cross-off | glassy | on | glassy | glassy | on | glassy | glassy | on | cross-off |
High Tide | 5:03AM2.25m | 5:20PM2.06m | 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 | |||||||
Low Tide | 10:47PM0.03m | 11:17AM0.13m | 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 | |||||||
— | 5:43 | — | — | 5:43 | — | — | 5:43 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | |
— | — | 6:17 | — | — | 6:16 | — | — | 6:16 | — | — | 6:15 | — | — | 6:15 | — | — | 6:15 | — | |
mm | 1 | — | — | — | — | — | — | — | — | 1 | — | — | 3 | — | 1 | 5 | — | 8 | 3 |
Temp °C | 28 | 34 | 33 | 28 | 33 | 31 | 28 | 33 | 30 | 28 | 33 | 30 | 28 | 32 | 30 | 27 | 32 | 30 | 25 |
Feels °C | 32 | 36 | 32 | 30 | 34 | 32 | 30 | 35 | 33 | 32 | 35 | 32 | 33 | 33 | 32 | 32 | 33 | 33 | 28 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 15 | SW 14 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SSW 14 | SSW 16 | SSW 15 | SSE 8 | SSE 8 | SSE 8 | SW 13 | SSW 13 | SSE 7 | S 10 | SSW 10 |
883 | 623 | 536 | 543 | 395 | 456 | 368 | 373 | 352 | 436 | 387 | 87 | 93 | 142 | 178 | 147 | 97 | 92 | 231 | |
Swell 2 Height (m) Direction Period (s) | S 12 | SE 8 | SE 7 | SE 6 | SSE 8 | SSE 7 | SSE 8 | SSE 8 | S 8 | S 8 | SSE 8 | SW 15 | SSW 14 | SW 14 | SSW 10 | S 8 | SSW 11 | SE 7 | SSW 15 |
100 | 142 | 71 | 24 | 48 | 89 | 101 | 109 | 105 | 100 | 92 | 309 | 261 | 186 | 56 | 65 | 69 | 44 | 191 | |
Swell 3 Height (m) Direction Period (s) | SE 6 | S 12 | S 12 | S 11 | S 11 | S 11 | S 11 | SSW 8 | SSW 7 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SSW 10 | S 9 | SE 6 | SW 14 | SSW 11 | SE 6 |
20 | 25 | 24 | 62 | 21 | 21 | 20 | 11 | 11 | 32 | 71 | 71 | 75 | 54 | 38 | 12 | 95 | 103 | 17 | |
Wind waves Height (m) Direction Period (s) | — | — | SSW 8 | W 3 | — | SSW 3 | — | — | — | — | NE 3 | — | — | — | SSE 7 | NW 6 | NNE 2 | SSW 3 | — |
— | — | 6 | 3 | — | 2 | — | — | — | — | 3 | — | — | — | 86 | 1 | 1 | 1 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 216 | 0 | 0 | 137 | 0 | 0 | 514 | 0 | 0 | 483 | 0 | 0 | 327 | 0 | 0 | 313 | 0 |
Best forecast wave conditions in El-Salvador - Costa del Balsamo | |||||||||||||||||||
Best forecast wave conditions in El Salvador | |||||||||||||||||||
Header Global | |||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
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.











