Surf Forecasts:
El Estero surf forecast from 15 Aug 2026:
- Best quality surf: Saturday 15 Aug, 6AM (local time) - 5ft (1.5m), 16s period, SW swell with cross-offshore winds.
- Most powerful swell: Saturday 15 Aug, 3AM (local time) - 5ft (1.5m), 16s period, SW swell with 1,151 kJ wave energy.
- Next surfable swell (1★+): Saturday 15 Aug, 6AM (local time) - 5ft (1.5m), 16s period with SW swell.
Best Forecast Surf Conditions for El Estero this week:
The surf forecast for El Estero over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Aug 15) at 6AM. The primary swell is predicted to be 1.5m and 16s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at El Estero in the next 16 days are 1.5m 16s and forecast to arrive on Saturday (Aug 15) at 3AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 8s period and expected on Tuesday (Aug 18) at 3PM.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Sat 15th Aug) | 5ft (1.5m) 16s |
| Best Surf | 6AM (Sat 15th Aug) | 5ft (1.5m) 16s |
| Most Powerful | 3AM (Sat 15th Aug) | 5ft (1.5m) 16s |
Table - best surf conditions forecast for El Estero over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s take a look at what’s on the menu for the next couple of weeks at El Estero.
First up, the water temp is sitting at a warm 86°, which is a touch warmer than normal for this time of year – that’s a nice little bonus. The vibe for the first few days is a bit of a mixed bag. We’ve got some solid, long-period groundswell rolling in from the SW, with a seriously juicy 1132 combined energy reading on Friday afternoon. That’s a lot of power in the water, with waves around 4ft and a period of 18 seconds. That long period means the sets will be fat, clean, and have some proper push, but it also means it’ll be a bit shifty on the beach. This is a river break, so the long-period swell should wrap in nicely. The wind is a moderate offshore from the ENE, so it’s going to be clean. That’s your best bet for the first week, but it’s not a total standout due to the size and tricky nature of the swell.
Saturday morning bumps up to 5ft, but the wind goes cross-offshore and picks up to 18 mph, which will put a bit of chop on the face. The energy drops a touch to 1113, but it’s still solid. It’s more of a grunty, blown-out day for experienced surfers only. The rest of the week into early next week is a slow fade. The swell drops to 4ft by Monday, with lighter winds, and the energy falls into the 400-500 range. It’s surfable, but nothing to write home about.
There’s a notable gap from the 18th afternoon through the 21st where the wind turns onshore or cross-onshore, and the quality tanks. You’ll see a few morning windows with clean conditions and offshore breezes, but the swell is small and weak. The real stand-out, if you’re patient, is the very end of the run. On Friday the 28th morning, we see a clean, gentle offshore breeze from the E with a 3ft SW swell and a 16-second period. The energy is back up to 448. Then Saturday the 29th morning is the real gem: 4ft from the SW, 16 seconds, light ENE offshore wind, and the energy jumps to 836. That’s the most promising window of the entire forecast. It’s a week and a half away, so keep an eye on it, but as things stand, that’s your best call.
Overall, the first week is for the experienced crew who want to grapple with a powerful, long-period swell. The second week has a few small, clean windows, but the real highlight is that final weekend. If you can wait, do it.
Rusty
Short Range ForecastLight rain (total 5mm), mostly falling on Sun night. Warm (max 33°C on Fri afternoon, min 24°C on Sun night). Winds decreasing (fresh winds from the ENE on Sat morning, calm by Sun night). | Days 5-7 Weather SummaryHeavy rain (total 28mm), heaviest during Wed afternoon. Warm (max 30°C on Thu morning, min 25°C on Tue night). Wind will be generally light. | |||||||||||||||||||
Fri 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | ||||||||||||||
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) | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 16 | SW 15 | SW 14 | SW 14 | SW 13 | SSW 8 | SSW 10 |
Wave Graph | ||||||||||||||||||||
881 | 1160 | 1109 | 897 | 1041 | 606 | 606 | 598 | 428 | 500 | 410 | 428 | 346 | 477 | 355 | 305 | 238 | 183 | 151 | 253 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross | on | glassy | off | cross-on | off | cross-off | on | off |
High Tide | 3:47PM2.56m | 4:16AM2.64m | 4:33PM2.52m | 4:59AM2.63m | 5:17PM2.42m | 5:41AM2.56m | 6:00PM2.29m | 6:22AM2.44m | 6:44PM2.14m | 7:05AM2.29m | 7:29PM1.98m | 7:50AM2.14m | 8:19PM1.83m | |||||||
Low Tide | 10:00PM0.01m | 10:27AM0.13m | 10:43PM0.06m | 11:13AM0.16m | 11:25PM0.15m | 11:57AM0.25m | 00:06AM0.29m | 12:41PM0.36m | 00:48AM0.44m | 1:26PM0.49m | 1:32AM0.59m | 2:16PM0.61m | 2:20AM0.72m | |||||||
— | — | 5:33 | — | — | 5:33 | — | — | 5:33 | — | — | 5:33 | — | — | 5:33 | — | — | 5:33 | — | — | |
6:01 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — | 5:59 | — | — | 5:59 | — | |
mm | — | — | — | — | — | — | — | 4 | 1 | — | 1 | — | 2 | 6 | 3 | 10 | 6 | — | 5 | 1 |
Temp °C | 33 | 28 | 32 | 30 | 27 | 30 | 28 | 25 | 26 | 27 | 26 | 29 | 28 | 27 | 28 | 27 | 26 | 30 | 28 | 27 |
Feels °C | 33 | 29 | 30 | 29 | 27 | 29 | 27 | 27 | 29 | 30 | 29 | 32 | 31 | 31 | 32 | 31 | 30 | 34 | 31 | 31 |
Swell 1 Height (m) Direction Period (s) | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | S 8 | S 8 | S 8 | S 8 | SSW 8 | S 8 | S 8 | SSW 8 | SSW 8 | SSW 10 |
881 | 1160 | 1109 | 897 | 1041 | 606 | 606 | 598 | 428 | 500 | 138 | 142 | 177 | 117 | 151 | 95 | 113 | 144 | 151 | 253 | |
Swell 2 Height (m) Direction Period (s) | SW 14 | S 12 | S 12 | S 12 | S 12 | S 7 | S 7 | S 7 | S 8 | S 8 | SW 14 | SW 14 | SW 14 | SW 16 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 |
251 | 178 | 136 | 134 | 129 | 59 | 61 | 77 | 111 | 138 | 410 | 428 | 346 | 477 | 355 | 305 | 238 | 183 | 138 | 83 | |
Swell 3 Height (m) Direction Period (s) | S 11 | N 5 | SW 10 | N 5 | SW 8 | S 11 | S 11 | S 11 | S 11 | S 11 | S 10 | S 10 | NW 7 | SW 8 | SW 9 | SW 8 | SW 7 | SW 18 | N 4 | N 4 |
160 | 7 | 4 | 16 | 3 | 59 | 38 | 37 | 21 | 20 | 8 | 8 | 2 | 58 | 23 | 48 | 25 | 13 | 1 | 1 | |
Wind waves Height (m) Direction Period (s) | — | N 5 | NNE 5 | — | NNE 5 | NNE 5 | N 5 | — | — | — | — | — | — | — | — | SSE 3 | — | — | — | — |
— | 11 | 37 | — | 25 | 33 | 23 | — | — | — | — | — | — | — | — | 4 | — | — | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 0 | 13 | 29 | 13 | 13 | 29 | 29 | 0 | 0 | 0 | 0 | 7 | 10 | 0 | 0 | 10 | 0 | 0 | 10 | 0 |
Best forecast wave conditions in Guanacaste | ||||||||||||||||||||
Best forecast wave conditions in Costa Rica | ||||||||||||||||||||
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Information about the El Estero Surf forecast
The above surf forecast table for El Estero provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at El Estero can be found by selecting the local surf guide option on the grey menu. Our El Estero 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 Estero) 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 Estero 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 Estero is 47 km (29 miles) from Nicoya. If you plan a holiday in Guanacaste, look for hotels and other accommodation in Nicoya. Nicoya has rooms for a wide range of budgets as well as car hire and transport links.











