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Surf Forecasts:

Avellanas Rivermouth surfForecast / Guanacaste / Costa Rica

information circle48hr Weather and Surf, issued 5 pm Saturday 14 Feb 2026 CST
Forecast update in hr  min  s Forecast update imminent
Avellanas Rivermouth surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Avellanas Rivermouth sea temperature is
27.1° C
 (Which is normal for this time of year)

How big are the waves at Avellanas Rivermouth today?

The current surf forecast for Avellanas Rivermouth at 1AM is: 0.6m 13s primary swell from a Southwest direction (forecast issued at 05:00pm February 14). An open ocean swell of 0.5m 5s is not directed at the surf break. The wind direction is predicted to be onshore.

Time (CST) & DateWave HeightWave Period
Morning (15 Feb)2ft (0.6m)12s
Afternoon (15 Feb)1.5ft (0.4m)16s
Evening (15 Feb)1.5ft (0.5m)15s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Saturday
14
Sunday
15
Monday
16
Tuesday
17
3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM
Rating
(10 max)
1
1
0
0
0
0
0
1
1
1
1
0
0
0
0
1
1
0
0
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.7
SW
0.7
SW
0.7
SW
0.6
SW
0.6
SW
0.6
SW
0.6
SW
0.4
S
0.4
SSW
0.4
SSW
0.5
S
0.5
S
0.5
S
0.6
SW
0.6
SW
0.6
SW
0.6
SW
0.6
S
0.5
S
0.5
S
0.5
S
0.6
SW
0.6
SW
0.6
SW
Period(s) (?)131313131313121616151515151313131413131312131313
Wave
Graph
(?)Metric surfscale
Energy kJ (?)175175175138136134126798275110109109130138144128128898678108138138
Wind
(km/h)
10
NNE
10
SE
15
E
20
E
15
E
15
E
10
E
15
W
15
W
10
WSW
5
SE
5
E
10
E
10
ENE
15
NE
15
N
10
S
10
SSE
20
E
20
ENE
15
E
15
ENE
25
ENE
20
NE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		cross-
on		onononononoffoffcross-
off		glassononcross-
on		cross-
on		crosscrosscross-
on		ononononcross-
on		cross-
on
High Tide
/ height (m)
12:54PM
1.78
1:03AM
2.05
1:43PM
1.92
1:50AM
2.16
2:24PM
2.09
2:32AM
2.26
Low Tide
/ height (m)
6:48PM
0.77
7:32AM
0.55
7:39PM
0.66
8:12AM
0.43
8:23PM
0.54
8:49AM
0.33
Saturday
14
Sunday
15
Monday
16
Tuesday
17
Sunrise------6:03-------6:03-------6:01-
Sunset5:51-------5:51-------5:51-------
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
Rain (mm)
------------------------
Temp. °C312826252424282928262626242327313029272523242831
Feels °C (?)322926252425293029282928252427313130262524252629
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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 Avellanas Rivermouth 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 Avellanas Rivermouth at:
surf-forecast.com

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