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Las Avellanas surf break

Las Avellanas surfForecast / Guanacaste / Costa Rica

information circle12 Day Weather and Surf, issued 5 pm Wednesday 06 Aug 2025 CST
Forecast update in hr  min  s Forecast update imminent
Las Avellanas surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Las Avellanas sea temperature is
28.9° C
 (Which is slightly warmer than usual)

Best Forecast Surf Conditions for Las Avellanas this week:

The surf forecast for Las Avellanas over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Aug 06) at 9PM. The primary swell is predicted to be 1.2m and 15s period. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Las Avellanas in the next 12 days are 1.3m 17s and forecast to arrive on Monday (Aug 11) at 9PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 12s period and expected on Wednesday (Aug 06) at 9PM.

Wave TypeTime (CST) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Wed 6th Aug)4ft (1.2m) 15s
Best Surf12AM (Sun 10th Aug)4ft (1.2m) 18s
Most Powerful 9PM (Mon 11th Aug)4.5ft (1.3m) 17s

Table - best surf conditions forecast for Las Avellanas over the next 12 days.

Hourly12 Days
Guanacaste Surf
Print Surf Table
Updates in  hr  min  s Forecast update imminent 

Short Range Forecast Light rain (total 2mm), mostly falling on Wed afternoon. Warm (max 30°C on Wed afternoon, min 25°C on Wed night). Wind will be generally light.

Days 3-6 Weather Summary Heavy rain (total 78mm), heaviest during Mon night. Warm (max 29°C on Sat afternoon, min 23°C on Mon night). Wind will be generally light.

Wed
06
Thursday
07
Friday
08
Saturday
09
Sunday
10
Monday
11
Tuesday
12
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
3
3
3
2
3
2
1
2
3
2
4
3
2
4
3
2
4
3
2
3
3
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.2
SW
1.2
SW
1.1
SW
1.1
SW
1
SW
0.9
SW
0.9
SSW
0.9
SSW
0.7
SW
1.1
SW
1.2
SW
0.8
SW
0.8
SW
1.1
SW
1.1
SW
1.2
SW
1.3
SW
1.3
SW
1.3
SW
1.2
SW
1.1
SW
Period(s) (?)151414141313161519141818191917171716161616
Wave
Graph
(?)Metric surfscale
Energy (?)6636075255085154948234758247701109683827104686710001056907800788677
Wind
(km/h)
15
ESE
15
E
15
E
10
SSW
5
SW
10
NE
10
W
5
SE
10
ENE
10
WNW
5
SE
5
E
5
WSW
5
ESE
5
ESE
10
SSW
15
ENE
0
SW
10
SW
5
SE
5
E
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
offoffoffcrossglasscross-
off		onglasscross-
off		oncross-
off		offcross-
on		glassglasscross-
on		offglasscross-
on		glassglass
High Tide
/ height (m)
1:04AM
1.83
1:12PM
2.13
1:51AM
1.97
1:59PM
2.23
2:34AM
2.13
2:42PM
2.33
3:14AM
2.29
3:24PM
2.40
3:53AM
2.43
4:05PM
2.43
4:33AM
2.54
4:48PM
2.43
5:14AM
2.59
Low Tide
/ height (m)
6:54PM
0.59
6:56AM
0.72
7:40PM
0.48
7:46AM
0.61
8:21PM
0.36
8:32AM
0.49
9:00PM
0.26
9:16AM
0.38
9:38PM
0.18
9:59AM
0.29
10:17PM
0.14
10:43AM
0.23
10:57PM
0.13
11:28AM
0.21
Wed
06
Thursday
07
Friday
08
Saturday
09
Sunday
10
Monday
11
Tuesday
12
Sunrise--5:33--5:33--5:33--5:33--5:33--5:33--5:33
Sunset6:05--6:04--6:04--6:04--6:02--6:02--6:01--
thunderstorm part cloudclearpart cloudpart cloudclearthunderstorm part cloudpart cloudthunderstorm thunderstorm part cloudthunderstorm thunderstorm rain showersthunderstorm thunderstorm part cloudthunderstorm thunderstorm thunderstorm
Rain (mm)
1-----1--11-4121455-132
Temp. °C302630302729282729292628272628272426272527
Feels °C (?)312732333133303032322932303031302830302931
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

Eyeball surf reportRecent Eyeball Surf Reports for Guanacaste

  1. weather stationWind Update The wind is still cross-off at Las Avellanas (light winds from the SE at Liberia/Tomas Guardia Airport 52 km from Las Avellanas). 0.9m 13s groundswell from the SSW with a 0.8m 12s groundswell, also from the SSW. 2 swells combining to make bigger set waves.

    2 hours 31 minutes ago Las Avellanas
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FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Las Avellanas surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.

View detailed surf forecast for Las Avellanas at:
surf-forecast.com

Information about the Las Avellanas Surf forecast

The above surf forecast table for Las Avellanas provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Las Avellanas can be found by selecting the local surf guide option on the grey menu. Our Las Avellanas 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 (Las Avellanas) 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 Las Avellanas 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.

Las Avellanas is 45 km (28 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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