El Estero Surf Break

Lat Long: 10.32° N 85.84° W

El Estero Surf Forecast and Surf Report

Issued: 5 am 09 Sep 2026 (local time)

Forecast update in  hr  min

Today's El Estero sea temperature is
30.0°C
1.9° 

El Estero surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


El Estero surf forecast from 9 Sep 2026:

  • Best quality surf: Thursday 10 Sep, 12PM (local time) - 4.5ft (1.3m), 17s period, SW swell with glassy winds.
  • Most powerful swell: Thursday 10 Sep, 9AM (local time) - 4.5ft (1.3m), 17s period, SW swell with 1,074 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 9 Sep, 3PM (local time) - 3ft (0.9m), 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 Wednesday (Sep 09) at 3PM. The primary swell is predicted to be 0.9m and 16s period with a secondary swell of 0.6m and 12s. 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 17s and forecast to arrive on Thursday (Sep 10) at 9AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 8s period and expected on Monday (Sep 14) at 9PM.

Wave TypeTime (CST) & Date Wave Height & Period
Next good surf (1 star+) 3PM (Wed 9th Sep)3ft (0.9m) 16s
Best Surf12PM (Thu 10th Sep)4.5ft (1.3m) 17s
Most Powerful 9AM (Thu 10th Sep)4.5ft (1.3m) 17s

Table - best surf conditions forecast for El Estero over the next 16 days.


The Lowdown

Alright folks, Rusty here. Let’s get into it. We’ve got a 16-day window looking at El Estero, a river mouth setup that’s consistent and exposed to the west-northwest. The water is running a touch warmer than normal for this time of year, sitting at 86°F, which is a couple notches above average.

The first few days start off with a bit of a mixed bag. On Wednesday the 9th, we’ve got a 3ft SW groundswell ticking in with a 16-second period – that’s proper long-period energy, perfect for a river mouth where the current can help shape it. The morning is clean with a cross-off wind, but it’s a fresh breeze at 30 km/h, so it’ll be a bit of a paddle. The afternoon cleans up nicely with a light offshore breeze and 3ft swell, making it a much better window. The combined energy sits at 674 and 564 respectively, moderate but solid.

Thursday the 10th sees the swell pick up to 4ft from the SW, and the morning brings a 17-second period – very long period groundswell. The combined energy jumps to 1124, which is strong. The morning is clean with a gentle cross-off breeze, but the afternoon turns into a messy cross-onshore with a risk of thunderstorms, so you’ll want to be out early. Friday the 11th keeps the 4ft SW swell going, with the morning looking clean under a gentle cross-off, and the afternoon going glassy with very light offshore winds. The combined energy is moderate at 701 and 633. Saturday the 12th drops a touch to 3ft, but the morning has a light cross-off breeze and clean conditions. The afternoon gets a cross-on breeze and a bit of chop, so stick to the early session.

Now, if you’re looking for the standout, I’d point to Sunday the 20th. That morning the swell is 3ft from the SW with a 19-second period – that’s very long period groundswell, and the combined energy is 650, strong. The wind is glassy, dead calm, which is rare. It’s going to be dead clean, with long, peeling lines off the river mouth. That’s your best bet in this whole window. The crowds are “often” here, so expect company, but for that quality, it’s worth it.

The rest of the second week shows a continuing SW swell, but the afternoons often get a cross-on breeze and risk of thunderstorms. The mornings are generally the call. On Monday the 21st, the morning is clean with a light cross-shore breeze and 3ft swell at 18 seconds, but the afternoon gets choppy with a moderate breeze. Tuesday the 22nd has a tricky morning with a light cross-shore, but the swell is 4ft with a 16-second period and combined energy of 1007 – strong. The afternoon is poor with a cross-on wind. Wednesday the 23rd is a bit of a washout in the afternoon, but the morning has a 3ft swell at 15 seconds with a light cross-shore.

Thursday the 24th is interesting: the swell swings to the WSW at 5ft, but the period drops to 8 seconds – short period wind swell. The morning is dead calm and glassy, so it’ll be clean, but the waves won’t have the same punch as the groundswell. The combined energy is 614, moderate. The afternoon turns cross-onshore and choppy again. That 5ft is a bit punchy for beginners, but for the experienced crew, it’s a fun size.

Overall, the best on offer is that Sunday the 20th morning session. The glassy conditions, long-period groundswell, and clean lines at El Estero make it the pick of the 16 days. Stay patient, and get on it when the wind drops.

Rusty out.

Short Range Forecast

Light rain (total 3mm), mostly falling on Thu afternoon. Warm (max 34°C on Wed morning, min 26°C on Wed night). Winds decreasing (fresh winds from the ENE on Wed morning, calm by Thu morning).

Days 4-6 Weather Summary

Heavy rain (total 21mm), heaviest during Sun afternoon. Warm (max 30°C on Sat morning, min 25°C on Mon night). Wind will be generally light.

Wednesday
9
Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
3
3
3
0
3
2
3
2
2
1
2
2
0
2
2
0
3
3
2
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.8
SW
16
0.9
SW
16
1.2
SW
18
1.3
SW
17
1.3
SW
16
1.3
SW
16
1.2
SW
16
1.2
SW
15
1.1
SW
14
0.9
SW
14
0.9
SW
14
0.8
SW
13
0.7
SW
13
0.6
SW
13
0.6
SW
19
0.5
SW
19
0.6
SW
18
0.9
SW
18
0.8
SW
15
1
SW
17
1
SW
16
Wave Graph
Metric surfscale
Energy kJ
299
437
871
1074
823
897
701
623
459
346
341
215
171
138
236
171
246
460
266
587
502
Wind (km/h)
30
ENE
10
ESE
15
ENE
15
ENE
20
SSW
10
E
15
NE
10
SE
10
ESE
10
NE
10
SSW
5
E
5
E
15
SW
10
E
5
ENE
10
SW
10
E
10
E
10
SSW
10
ESE
Wind State
cross-off
off
off
cross-off
cross-on
off
cross-off
cross-off
off
cross-off
cross-on
off
off
cross-on
off
cross-off
cross-on
off
off
cross-on
off
High Tide
1:02PM2.31m
1:35AM2.37m
1:55PM2.40m
2:23AM2.51m
2:43PM2.46m
3:07AM2.61m
3:27PM2.48m
3:48AM2.64m
4:09PM2.44m
4:27AM2.60m
4:49PM2.37m
5:06AM2.52m
5:29PM2.26m
Low Tide
7:19PM0.27m
7:46AM0.30m
8:08PM0.18m
8:36AM0.19m
8:53PM0.12m
9:21AM0.12m
9:34PM0.11m
10:03AM0.10m
10:14PM0.15m
10:44AM0.14m
10:53PM0.23m
11:23AM0.22m
11:31PM0.34m
clear
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clear
part cloud
thunderstorm
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thunderstorm
clear
part cloud
thunderstorm
rain showers
rain showers
mod rain
part cloud
part cloud
thunderstorm
thunderstorm
cloud
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:33
5:33
5:33
5:33
5:33
5:33
5:33
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:46
5:46
5:45
5:45
5:45
5:44
5:44
 mm
2
1
2
1
1
9
2
6
2
2
Temp °C
34
33
28
31
29
28
33
31
28
30
29
27
30
28
27
30
29
27
29
28
26
Feels °C
34
35
28
34
31
30
34
34
30
33
32
30
33
30
31
32
31
31
33
32
30
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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.

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