- Forecast
- Maps
- Live
- Weather State
- Spot Information
Islita Surf Forecast
/ Guanacaste (28 surf breaks) /
Surf Forecasts:
Islita surfForecast / Guanacaste / Costa Rica
48hr Weather and Surf, issued 5 pm Saturday 18 Oct 2025 CST
How big are the waves at Islita today?
The current surf forecast for Islita at 9PM is: 1.2m 15s primary swell from a Southwest direction and 0.6m 7s secondary swell from a West direction (forecast issued at 05:00pm October 18). The wind direction is predicted to be glassy and the swell rating is 3.
| Time (CST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Oct) | - | - |
| Afternoon (18 Oct) | 4.5ft (1.3m) | 16s |
| Evening (18 Oct) | 4ft (1.2m) | 15s |
Table - waves today at Islita. (Swell directed towards the surf break)
Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | |||||||||||||||||||||
| 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 | 3 AM | 6 AM | 9 AM | 12 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 16 | 15 | 15 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 749 | 666 | 649 | 631 | 584 | 576 | 568 | 482 | 638 | 407 | 401 | 350 | 463 | 443 | 424 | 363 | 357 | 264 | 264 | 276 | 293 | 395 | 293 | 297 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | on | glass | glass | glass | glass | glass | cross- on | cross | cross- off | glass | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross- off | cross- off | cross- off | glass | cross- off | cross- off | cross |
High Tide / height (m) | 12:38PM 2.15 | 1:00AM 2.34 | 1:24PM 2.22 | 1:40AM 2.42 | 2:05PM 2.28 | 2:16AM 2.49 | ||||||||||||||||||
Low Tide / height (m) | 6:44PM 0.54 | 7:17AM 0.48 | 7:27PM 0.50 | 7:57AM 0.38 | 8:05PM 0.45 | 8:34AM 0.30 | ||||||||||||||||||
Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 5:30 | - | - | - | - | - | - | - | 5:30 | - | - | - | - | - | - | - | 5:30 | - | - |
| Sunset | 5:22 | - | - | - | - | - | - | - | 5:22 | - | - | - | - | - | - | - | 5:22 | - | - | - | - | - | - | - |
 |  | |  | |  |  | | | | | |  | | | | | |  | | | | | | |
Rain (mm) | 1 | 1 | 1 | - | 1 | - | - | 3 | 3 | 5 | 4 | 2 | - | - | - | 1 | 2 | 4 | 6 | 5 | 4 | 2 | 3 | 5 |
| Temp. °C | 27 | 26 | 25 | 25 | 25 | 25 | 27 | 27 | 27 | 25 | 24 | 25 | 25 | 24 | 27 | 28 | 27 | 26 | 26 | 25 | 25 | 25 | 26 | 27 |
| Feels °C (?) | 30 | 30 | 29 | 30 | 30 | 30 | 31 | 31 | 30 | 29 | 29 | 29 | 29 | 27 | 31 | 31 | 29 | 29 | 29 | 28 | 30 | 29 | 30 | 31 |
- 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
Continuing clean conditions at Islita (light winds from the ENE at Liberia/Tomas Guardia Airport 85 km from Islita). 0.9m 16s long period groundswell from the SSW with a 0.7m 6s windswell, also from the SSW and a 0.6m 7s swell, also from the SW. 3 swells combining to make bigger set waves.
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.
Nearest