Surf Forecasts:
El Estero surf forecast from 30 Aug 2026:
- Best quality surf: Friday 4 Sep, 12AM (local time) - 4.5ft (1.3m), 18s period, SW swell with cross-offshore winds.
- Most powerful swell: Friday 4 Sep, 3PM (local time) - 5ft (1.6m), 17s period, SW swell with 1,519 kJ wave energy.
- Next surfable swell (1★+): Sunday 30 Aug, 6AM (local time) - 5ft (1.5m), 15s 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 Sunday (Aug 30) at 6AM. The primary swell is predicted to be 1.5m and 15s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at El Estero in the next 16 days are 1.6m 17s and forecast to arrive on Friday (Sep 04) at 3PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 6s period and expected on Sunday (Aug 30) at 6AM.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Sun 30th Aug) | 5ft (1.5m) 15s |
| Best Surf | 12AM (Fri 4th Sep) | 4.5ft (1.3m) 18s |
| Most Powerful | 3PM (Fri 4th Sep) | 5ft (1.6m) 17s |
Table - best surf conditions forecast for El Estero over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s coming down the line for El Estero.
First things first, we’ve got waves on the menu from the start of the forecast window, so no waiting around. The overall pattern is a mix of solid south-west groundswells, with a real standout for the experienced crew right around the 4th and 5th of September. The water temp is sitting pretty much where it should be for this time of year, so no surprises there.
Okay, let’s get into the details. The first good session kicks off Sunday morning, the 30th of August. El Estero is showing a clean 5ft of swell from the SW, with a 14-second period and a moderate energy level (920). The wind is a gentle cross-offshore breeze from the ENE, so the river mouth will be lining up nicely. This is a consistent spot, so expect it to be working.
Sunday afternoon takes a bit of a turn – a risk of thunderstorms and a cross-onshore wind makes it messy, so I’d be getting it done in the morning. Monday the 31st has a smaller 4ft SW swell, but the morning remains clean with a cross-off wind. The energy drops a bit (467), but it’s still a fun, manageable wave.
Tuesday the 1st of September is a real gem for the morning. We’ve got a clean 3ft SW swell with a light offshore wind from the ENE. It’s not huge, but it’ll be clean and tidy. The best of the first week, though, is Wednesday the 2nd of September. The swell drops to 2ft, but the period stretches out to a very long 18 seconds, and the wind goes glassy. The energy is still moderate (578), and with those conditions, the river mouth will be offering up some beautifully shaped, long-running waves. It’ll be clean as a whistle.
Thursday the 3rd has another glassy morning with a 3ft, 16-second swell, but the real standout for the whole forecast is Friday the 4th of September. The morning brings a clean 5ft SW groundswell, with a 17-second period and a strong energy reading of 1489. The wind is a light offshore from the ENE. This is proper surf – solid, powerful, and clean. It’s pushing into the 5ft mark, so if you’re not a confident surfer, it might be a bit much, but for the experienced crew, it’s going to be firing. Saturday the 5th is a close second with a similar 6ft swell (1450 energy) and a light offshore wind. Again, this is for the guys who know what they’re doing.
The second week is a bit more relaxed but still offers plenty of good windows. Sunday the 6th of September has a glassy 5ft SW swell, great for a long session without the crowds being too hectic. The following week sees a pattern of glassy mornings with smaller, longer-period swells, especially on the 8th and 9th of September. The 8th has a 3ft, 18-second groundswell in glassy conditions, and the 9th has a similar 3ft, 16-second swell.
On the 10th of September, we get another excellent morning with a clean 4ft SW swell and a gentle offshore wind, with energy pushing into the moderate-to-strong range (1041). The 11th and 12th stay clean in the mornings, with the 11th offering a solid 4ft, 16-second swell. The 14th of September wraps things up with a clean 2ft, 18-second swell in the morning.
So, the standout calls are clear: Friday the 4th of September morning is the best of the lot for experienced surfers. Saturday the 5th is almost as good. For the average surfer looking for clean, fun waves, the glassy mornings of the 2nd, 3rd, and 6th of September are your best bet. Crowds are possible at El Estero, it’s a known spot, so get out early.
Rusty.
Short Range ForecastLight rain (total 3mm), mostly falling on Sun afternoon. Warm (max 33°C on Mon morning, min 25°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 17mm), heaviest on Fri afternoon. Warm (max 30°C on Fri morning, min 25°C on Tue night). Wind will be generally light. | ||||||||||||||||||
Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | ||||||||||||||
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 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 18 | SW 16 | SW 16 | SW 16 | SW 19 | SW 18 | SW 17 | SW 17 | SW 16 |
Wave Graph | |||||||||||||||||||
1200 | 911 | 899 | 621 | 451 | 386 | 331 | 301 | 297 | 220 | 300 | 326 | 371 | 291 | 577 | 1099 | 1297 | 1519 | 1314 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross-on | off | cross-off | cross | off | off | cross-on | cross-off | glassy | cross-on | cross-off | glassy | on | cross-off | off | cross-on | off |
High Tide | 3:53AM2.45m | 4:09PM2.34m | 4:29AM2.51m | 4:46PM2.32m | 5:05AM2.52m | 5:25PM2.27m | 5:45AM2.50m | 6:08PM2.19m | 6:29AM2.43m | 6:56PM2.09m | 7:20AM2.33m | 7:53PM1.99m | |||||||
Low Tide | 9:39PM0.26m | 10:04AM0.28m | 10:14PM0.24m | 10:42AM0.24m | 10:50PM0.24m | 11:21AM0.24m | 11:28PM0.28m | 12:04PM0.28m | 00:10AM0.34m | 12:52PM0.35m | 00:59AM0.43m | 1:47PM0.44m | 1:56AM0.53m | ||||||
— | 5:33 | — | — | 5:33 | — | — | 5:33 | — | — | 5:33 | — | — | 5:33 | — | — | 5:33 | — | — | |
— | — | 5:53 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:51 | — | — | 5:51 | — | |
mm | — | — | 2 | — | — | — | — | — | 1 | 3 | — | — | 4 | 1 | 1 | 1 | — | 7 | 1 |
Temp °C | 28 | 32 | 29 | 28 | 33 | 30 | 28 | 31 | 29 | 27 | 29 | 28 | 26 | 29 | 29 | 27 | 30 | 29 | 28 |
Feels °C | 28 | 36 | 30 | 32 | 36 | 32 | 31 | 33 | 30 | 29 | 30 | 30 | 29 | 31 | 31 | 31 | 33 | 31 | 33 |
Swell 1 Height (m) Direction Period (s) | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SSW 6 | SW 13 | SW 13 | SW 16 | SW 16 | SW 19 | SW 18 | SW 17 | SW 17 | SW 16 |
1200 | 911 | 899 | 621 | 451 | 386 | 331 | 301 | 297 | 66 | 238 | 238 | 371 | 291 | 577 | 1099 | 1297 | 1519 | 1314 | |
Swell 2 Height (m) Direction Period (s) | S 6 | S 10 | S 10 | S 8 | S 6 | SSW 6 | S 7 | S 7 | SW 18 | SW 12 | SSW 6 | SW 16 | SSW 12 | SSW 7 | SSW 7 | SSW 6 | SSW 11 | SSW 11 | S 11 |
52 | 71 | 46 | 31 | 12 | 12 | 32 | 43 | 112 | 220 | 40 | 326 | 180 | 47 | 51 | 56 | 167 | 133 | 89 | |
Swell 3 Height (m) Direction Period (s) | S 10 | SW 6 | N 4 | SW 6 | NW 10 | NNW 4 | W 9 | SW 18 | W 8 | SW 18 | SW 18 | SSW 6 | S 6 | SW 12 | SW 12 | SW 11 | WNW 9 | WNW 10 | W 9 |
18 | 9 | 6 | 5 | 16 | 5 | 6 | 84 | 6 | 155 | 300 | 44 | 41 | 144 | 110 | 58 | 25 | 31 | 25 | |
Wind waves Height (m) Direction Period (s) | — | — | SW 6 | NNE 4 | — | — | NNE 4 | — | SSW 6 | — | — | — | — | — | — | — | — | — | — |
— | — | 9 | 4 | — | — | 3 | — | 68 | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 131 | 0 | 0 | 10 | 0 | 0 | 197 | 0 | 0 | 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.











