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Surf Forecasts:

Islita surfForecast / Guanacaste / Costa Rica

information circle48hr Weather and Surf, issued 5 pm Tuesday 20 Jan 2026 CST
Forecast update in hr  min  s Forecast update imminent
Islita surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Islita sea temperature is
28.5° C
 (Which is 1.2°C warmer than normal for this time of year)

How big are the waves at Islita today?

The current surf forecast for Islita at 12AM is: 0.5m 17s primary swell from a Southwest direction and 0.4m 12s secondary swell from a South-southwest direction (forecast issued at 05:00pm January 20). The wind direction is predicted to be offshore and the swell rating is 2.

Time (CST) & DateWave HeightWave Period
Morning (21 Jan)--
Afternoon (21 Jan)1.5ft (0.5m)13s
Evening (21 Jan)1.5ft (0.4m)18s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Tuesday
20
Wednesday
21
Thursday
22
Friday
23
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)
0
1
1
2
1
2
1
1
1
3
2
2
2
2
2
1
1
2
2
2
2
2
2
1
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.5
SSW
0.4
SW
0.4
SW
0.5
SW
0.4
SW
0.5
SW
0.5
SW
0.6
SW
0.8
SW
0.9
SW
0.8
SW
0.6
SW
0.6
SW
0.6
SW
0.6
SW
0.7
SW
0.8
SW
0.9
SW
0.9
SSW
0.8
SW
0.7
SW
0.6
SW
0.6
SW
0.6
SW
Period(s) (?)131818171616161616161615151414141414141414131313
Wave
Graph
(?)Metric surfscale
Energy kJ (?)938010914769125125206302362302188174169169214248301357241191144142140
Wind
(km/h)
5
SSE
5
NE
15
NNE
15
NNE
10
NNE
10
NNE
10
NE
5
S
5
SW
5
WSW
10
NNE
10
NNE
10
NNE
10
NNE
10
NNE
10
S
10
SSW
5
S
0
NNE
5
NNE
10
NNE
10
NNE
5
NE
10
S
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		glassoffoffcross-
off		offcross-
off		oncross-
on		glassoffoffoffoffcross-
off		ononglassglasscross-
off		offoffcross-
off		on
High Tide
/ height (m)
4:08PM
2.36
4:13AM
2.46
4:44PM
2.45
4:50AM
2.45
5:19PM
2.51
5:29AM
2.41
Low Tide
/ height (m)
10:07PM
0.46
10:28AM
0.23
10:46PM
0.43
11:02AM
0.23
11:26PM
0.41
11:38AM
0.26
Tuesday
20
Wednesday
21
Thursday
22
Friday
23
Sunrise------6:03-------6:03-------6:03-
Sunset5:40-------5:42-------5:42-------
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
Rain (mm)
------------------------
Temp. °C302826252424272929272524242427292927262524232729
Feels °C (?)323228262526283032302725262629303130292826253030
  • 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

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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 Islita 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 Islita at:
surf-forecast.com

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