
Surf Forecasts:
El Estero surf forecast from 13 Sep 2026:
- Best quality surf: Tuesday 15 Sep, 12AM (local time) - 3ft (0.9m), 18s period, SW swell with cross-offshore winds.
- Most powerful swell: Wednesday 16 Sep, 9AM (local time) - 4.5ft (1.3m), 16s period, SW swell with 823 kJ wave energy.
- Next surfable swell (1★+): Sunday 13 Sep, 6AM (local time) - 2.5ft (0.7m), 13s 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 (Sep 13) at 6AM. The primary swell is predicted to be 0.7m and 13s 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 1.3m 16s and forecast to arrive on Wednesday (Sep 16) at 9AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 8s period and expected on Tuesday (Sep 15) at 3AM.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Sun 13th Sep) | 2.5ft (0.7m) 13s |
| Best Surf | 12AM (Tue 15th Sep) | 3ft (0.9m) 18s |
| Most Powerful | 9AM (Wed 16th Sep) | 4.5ft (1.3m) 16s |
Table - best surf conditions forecast for El Estero over the next 16 days.
The Lowdown
Alright crew, let’s break down the next couple of weeks for El Estero.
Right off the bat, it’s not going to be a barnstormer of a period. The surf is on the small side for the first week, with the energy steadily building. Most of the serious action is tucked away in the second week, so patience is the name of the game.
We start off Sunday the 13th with a 2ft SW swell. It’s there, but honestly, with a cross-off breeze, the conditions are pretty ordinary. You’d be fighting it for scraps. Monday the 14th is a bit cleaner with the same 2ft SW swell, but the period jumps up to 19 seconds – that’s proper groundswell, but it won’t have much push behind it yet. The combined energy is moderate at 292. Tuesday the 15th is much the same, small and marginal. The energy is climbing but the conditions aren't gelling.
The real shift starts on Wednesday the 16th. We get a 4ft SW swell with 16-second period and light offshore winds from the east. The energy is building strong at 866. This is the first solid window, and it should be clean, well-shaped, and worth a paddle. Thursday the 17th morning is similar but a touch smaller, still good.
Friday the 18th drops back a bit, but Saturday the 19th is a beauty for the morning – glassy conditions, no wind at all, with a 2ft, 19-second SW groundswell. That combo of glass and long-period swell is a real treat for a river mouth like this, making for clean, lined-up waves. The energy is moderate at 393, so don't expect a lot of power, but the quality will be there.
Sunday the 20th is another standout morning: 3ft SW at 19 seconds with light offshore easterlies and the energy jumping into strong territory at 735. That’s a cracker of a Sunday session. Monday the 21st and Tuesday the 22nd keep the energy high, with the Tuesday morning offering glassy conditions again. The wave height stays around 3ft to 4ft, perfect for the river mouth.
Then we hit the big stuff. On Saturday the 26th, the swell goes nuclear. We’re talking 15ft SSW at 10 seconds with glassy winds in the morning. The combined energy is a massive 3962. This is expert-only territory. That river mouth is going to be a washing machine. Definitely not for the faint of heart or anyone on a foamie. Sunday the 27th calms down a bit with a 8ft WSW swell and offshore cross-off winds in the morning, energy still at a strong 1310. This is a session for experienced surfers who know the setup. After that, Monday the 28th drops back to manageable 3ft SW.
Best on Offer:
Without a doubt, Sunday the 20th is the standout of the whole run. A 3ft SW groundswell at 19 seconds, light offshore wind from the east, and strong energy (735). That’s clean, lined up, and with manageable crowds – an absolute classic El Estero morning.
The runner-up is Saturday the 19th morning for the glassy conditions – no wind and a long 2ft pulse. If you want silky, peelers, that’s your window.
Stay tuned, and keep an eye on that last week – it could get wild.
Rusty.
Short Range ForecastLight rain (total 8mm), mostly falling on Mon afternoon. Warm (max 32°C on Sun morning, min 26°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 5mm), mostly falling on Tue night. Warm (max 31°C on Thu morning, min 25°C on Tue night). Wind will be generally light. | ||||||||||||||||||
Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | ||||||||||||||
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 13 | SW 13 | SW 13 | SW 19 | SW 19 | SW 18 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 | SW 20 | SW 19 |
Wave Graph | |||||||||||||||||||
215 | 140 | 138 | 299 | 219 | 246 | 460 | 249 | 587 | 508 | 823 | 620 | 418 | 407 | 401 | 317 | 249 | 239 | 236 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | off | off | cross-off | cross-off | cross-off | cross-off | cross-on | cross-off | off | cross-on | glassy | cross-off | cross-on | glassy | cross-off | on | glassy |
High Tide | 3:48AM2.64m | 4:09PM2.44m | 4:27AM2.60m | 4:49PM2.37m | 5:06AM2.52m | 5:29PM2.26m | 5:44AM2.39m | 6:09PM2.12m | 6:24AM2.24m | 6:51PM1.97m | 7:07AM2.09m | 7:39PM1.83m | |||||||
Low Tide | 9:34PM0.11m | 10:03AM0.10m | 10:14PM0.15m | 10:44AM0.14m | 10:53PM0.23m | 11:23AM0.22m | 11:31PM0.34m | 12:03PM0.33m | 00:10AM0.47m | 12:45PM0.47m | 00:52AM0.61m | 1:32PM0.60m | 1:39AM0.75m | ||||||
— | 5:33 | — | — | 5:33 | — | — | 5:33 | — | — | 5:33 | — | — | 5:31 | — | — | 5:31 | — | — | |
— | — | 5:45 | — | — | 5:44 | — | — | 5:44 | — | — | 5:43 | — | — | 5:42 | — | — | 5:42 | — | |
mm | 1 | — | 1 | — | — | 2 | — | 1 | 3 | 2 | — | 2 | — | — | 1 | — | — | — | 1 |
Temp °C | 27 | 32 | 31 | 27 | 31 | 31 | 27 | 30 | 29 | 28 | 30 | 28 | 27 | 31 | 29 | 28 | 30 | 29 | 28 |
Feels °C | 29 | 33 | 32 | 29 | 32 | 32 | 28 | 34 | 32 | 31 | 33 | 31 | 32 | 34 | 31 | 32 | 32 | 31 | 32 |
Swell 1 Height (m) Direction Period (s) | SW 13 | S 9 | S 9 | S 9 | S 8 | S 8 | SW 18 | S 8 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 |
215 | 76 | 74 | 71 | 69 | 91 | 460 | 109 | 587 | 508 | 823 | 620 | 418 | 407 | 401 | 317 | 249 | 205 | 205 | |
Swell 2 Height (m) Direction Period (s) | S 8 | SW 13 | SW 13 | SW 13 | SW 19 | SW 18 | S 8 | SW 14 | S 8 | S 8 | S 8 | S 8 | S 8 | S 10 | S 9 | S 9 | S 8 | S 9 | S 9 |
44 | 140 | 138 | 134 | 219 | 246 | 90 | 206 | 89 | 111 | 89 | 68 | 49 | 90 | 57 | 73 | 51 | 52 | 55 | |
Swell 3 Height (m) Direction Period (s) | SSE 9 | SW 18 | NNE 4 | SW 19 | SW 12 | SW 12 | SW 12 | SW 18 | SW 13 | SW 12 | NW 13 | N 4 | SW 23 | SW 22 | N 4 | SW 21 | SW 20 | SW 20 | SW 19 |
17 | 51 | 6 | 299 | 73 | 71 | 69 | 249 | 109 | 95 | 43 | 3 | 86 | 123 | 9 | 220 | 198 | 239 | 236 | |
Wind waves Height (m) Direction Period (s) | N 4 | NNE 4 | — | NE 4 | NNE 4 | — | N 5 | NNW 11 | — | — | — | — | — | N 4 | — | — | NNE 4 | — | — |
10 | 7 | — | 5 | 7 | — | 11 | 11 | — | — | — | — | — | 13 | — | — | 3 | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 29 | 0 | 0 | 0 | 9 | 0 | 10 | 10 | 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.










