Islita surfForecast / Guanacaste / Costa Rica

information circle48hr Weather and Surf, issued 11 pm Sunday 29 Mar 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
29.6° C
(Which is 1.1°C warmer than normal for this time of year)

How big are the waves at Islita today?

The current surf forecast for Islita at 6AM is: 1.4m 15s primary swell from a South direction and 0.3m 13s secondary swell from a Southwest direction (forecast issued at 11:00pm March 29). An open ocean swell of 0.3m 9s is not directed at the surf break. The wind direction is predicted to be offshore and the swell rating is 3.

Time (CST) & DateWave HeightWave Period
Morning (30 Mar)3ft (0.9m)18s
Afternoon (30 Mar)3.5ft (1.0m)17s
Evening (30 Mar)4ft (1.2m)16s

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


Updates in  hr  min  s Forecast update imminent
Monday
30
Tuesday
31
Wednesday
01
9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM
Rating
(10 max)
3
3
3
3
3
2
2
3
4
4
4
3
4
1
1
2
3
3
3
3
3
1
1
1
Swell
Height Map
Wave Height (m) & direction (?)
1.2
S
1.2
S
1.1
S
1.4
S
0.9
S
1
S
1
S
1.1
S
1.2
S
1.1
S
1.2
S
1.2
S
1.5
S
1.5
S
1.5
S
1.4
S
1.4
S
1.4
S
1.3
S
1.3
S
1.2
S
1.2
S
1.2
S
1.1
S
Period(s) (?)161515151818171716161414151515141414141414131313
Wave
Graph
(?)Metric surfscale
Energy kJ (?)719631517823492600594691774636520541997958957812802791674637518503506427
Wind
(km/h)
5
E
10
N
15
NNE
10
NNE
5
NNE
15
S
10
SSW
5
SW
5
NNW
5
N
10
NNE
10
NNE
5
NNE
15
S
10
SSW
5
S
5
NNE
5
NNE
10
N
10
NNE
5
NE
15
S
15
S
10
SE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
glassoffoffoffglassoncross-
on
cross-
on
glassoffoffoffglassoncross-
on
onglassoffoffoffglassononcross-
on
High Tide
/ height (m)
12:27AM
2.22
1:00PM
2.34
1:22AM
2.30
1:47PM
2.47
2:09AM
2.38
2:28PM
2.56
Low Tide
/ height (m)
6:16PM
0.60
6:41AM
0.46
7:13PM
0.47
7:31AM
0.39
8:01PM
0.35
8:14AM
0.33
Monday
30
Tuesday
31
Wednesday
01
Sunrise---5:39-------5:39-------5:39----
Sunset------5:52-------5:52-------5:52-
thunderstorm
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
thunderstorm
rain showers
clear
clear
thunderstorm
thunderstorm
Rain (mm)
1-----------------11--13
Temp. °C282725252931312929272625293130292927262629303028
Feels °C (?)322926273132333233302827313232323330292832313231
  • 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

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.


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