Las Avellanas Surf Forecast

/ Guanacaste (28 surf breaks) /

Costa Rica (96 surf breaks) / Lat Long: (10.24° N 85.85° W)

Surf Forecasts

Las Avellanas surfForecast / Guanacaste / Costa Rica

48hr Weather and Surf, issued 5 am Saturday 09 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 28.8° C
(Which is slightly warmer than usual)

How big are the waves at Las Avellanas today?

The current surf forecast for Las Avellanas at 10AM is: 0.9m 14s primary swell from a South-southwest direction and 0.6m 19s secondary swell from a Southwest direction (forecast issued at 05:00am August 09). The wind direction is predicted to be cross-offshore and the swell rating is 3.

Time (CST) & Date	Wave Height	Wave Period
Morning (09 Aug)	2.5ft (0.7m)	19s
Afternoon (09 Aug)	3.5ft (1.1m)	14s
Evening (09 Aug)	4ft (1.2m)	17s

Table - waves today at Las Avellanas. (Swell directed towards the surf break)

Hourly 12 Days

Guanacaste Surf

Print Surf Table

Updates in hr min s Forecast update imminent

	Saturday 09							Sunday 10								Monday 11								Tue 12
	3 AM	6 AM	9 AM	12 PM	3 PM	6 PM	9 PM	0 AM	3 AM	6 AM	9 AM	12 PM	3 PM	6 PM	9 PM	0 AM	3 AM	6 AM	9 AM	12 PM	3 PM	6 PM	9 PM	0 AM
Rating (10 max)	3	3	3	2	2	2	3	4	3	3	3	3	3	3	4	4	4	3	3	2	3	4	4	4
Swell Height Map See all maps
Wave Height (m) & direction (?)	SSW	SW	SW	SSW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW
Period(s) (?)	15	19	19	14	14	15	17	18	18	18	18	18	19	19	16	19	20	16	17	17	17	17	17	17
Wave Graph (?)
Energy (?)	776	894	822	720	721	672	844	1057	674	679	683	697	827	852	1194	1046	1001	840	867	896	1000	1105	1056	1056
Wind (km/h)	E	ENE	E	SW	S	S	SE	SE	ESE	ENE	E	WNW	WSW	ESE	ESE	ESE	ENE	E	SE	SSW	S	NE	ENE	NE
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	off	off	off	cross- on	cross	cross	cross- off	cross- off	glass	cross- off	glass	glass	glass	glass	cross- off	glass	glass	off	glass	cross	cross	cross- off	cross- off	cross- off
High Tide / height (m)	2:34AM 2.13				2:42PM 2.33					3:14AM 2.29				3:24PM 2.40				3:53AM 2.43				4:05PM 2.43
Low Tide / height (m)			8:32AM 0.49				9:00PM 0.26					9:16AM 0.38				9:38PM 0.18				9:59AM 0.29				10:17PM 0.14

	Saturday 09							Sunday 10								Monday 11								Tue 12
Sunrise	-	5:33	-	-	-	-	-	-	-	5:33	-	-	-	-	-	-	-	5:33	-	-	-	-	-	-
Sunset	-	-	-	-	-	6:04	-	-	-	-	-	-	-	6:02	-	-	-	-	-	-	-	6:02	-	-

Rain (mm)	-	-	-	-	1	2	2	1	-	-	-	-	3	5	1	1	1	1	2	4	6	6	2	-
Temp. °C	25	24	27	29	29	27	27	26	25	25	27	28	27	24	25	25	25	24	27	28	26	25	25	25
Feels °C (?)	27	27	30	33	32	30	30	29	28	29	31	32	31	28	29	29	29	27	31	31	29	29	28	29

Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)

Recent Eyeball Surf Reports for Guanacaste

Wind Update The wind is still offshore at Las Avellanas (light winds from the ENE at Liberia/Tomas Guardia Airport 51 km from Las Avellanas). 0.8m 14s groundswell from the SSW with a 0.6m 12s groundswell from the SW and a 0.4m 19s long period groundswell, also from the SW. 3 swells combining to make bigger set waves.
2 hours 11 minutes ago Las Avellanas

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