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Islita Surf Forecast
/ Guanacaste (28 surf breaks) /
Surf Forecasts:
Islita surfForecast / Guanacaste / Costa Rica
48hr Weather and Surf, issued 5 pm Monday 25 May 2026 CSTForecast 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
30.7° C
(Which is 2.1°C warmer than normal for this time of year)How big are the waves at Islita today?
The current surf forecast for Islita at 8PM is: 1.3m 15s primary swell from a Southwest direction and 0.6m 7s secondary swell from a South direction (forecast issued at 05:00pm May 25). The wind direction is predicted to be onshore.
| Time (CST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (25 May) | - | - |
| Afternoon (25 May) | 4ft (1.2m) | 15s |
| Evening (25 May) | 4ft (1.2m) | 15s |
Table - waves today at Islita. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 22mm), heaviest during Tue afternoon. Warm (max 31°C on Mon afternoon, min 26°C on Tue night). Wind will be generally light. | ||||||||||||||||||||||||
Mon 25 | Tuesday 26 | Wednesday 27 | Thu 28 | |||||||||||||||||||||
3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 14 | SW 14 | |
640 | 704 | 614 | 606 | 543 | 536 | 536 | 529 | 529 | 521 | 514 | 440 | 428 | 368 | 304 | 299 | 299 | 299 | 295 | 295 | 257 | 261 | 308 | 331 | |
Wind (km/h) | ||||||||||||||||||||||||
on | on | glassy | glassy | off | glassy | glassy | cross-on | cross-on | cross-on | glassy | cross-on | cross-off | off | glassy | cross-on | cross-on | cross-on | cross-on | glassy | glassy | glassy | glassy | cross-on | |
High Tide | 10:32PM2.05m | 11:01AM2.29m | 11:33PM2.03m | 11:53AM2.30m | 00:28AM2.05m | |||||||||||||||||||
Low Tide | 4:27PM0.62m | 4:38AM0.62m | 5:27PM0.59m | 5:34AM0.66m | 6:20PM0.53m | 6:24AM0.65m | ||||||||||||||||||
 |  |  | | |  | | | | | | | |  | | | | | | | | |  | | |
 | — | — | — | — | 5:18 | — | — | — | — | — | — | — | 5:18 | — | — | — | — | — | — | — | 5:18 | — | — | — |
 | 5:57 | — | — | — | — | — | — | — | 5:57 | — | — | — | — | — | — | — | 5:57 | — | — | — | — | — | — | 5:58 |
— | — | 1 | 2 | — | 2 | — | — | 1 | 4 | 2 | — | — | — | — | — | — | 1 | 2 | 3 | 1 | — | — | 3 | |
Temp °C | 31 | 29 | 28 | 28 | 27 | 27 | 29 | 31 | 29 | 27 | 27 | 26 | 26 | 27 | 28 | 29 | 30 | 28 | 28 | 27 | 27 | 27 | 29 | 29 |
33 | 33 | 33 | 33 | 31 | 31 | 33 | 34 | 32 | 30 | 32 | 30 | 31 | 31 | 33 | 32 | 34 | 32 | 33 | 32 | 32 | 32 | 34 | 33 | |
Swell 1 Height (m) Direction Period (s) | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 14 | SW 14 |
 kJ | 640 | 704 | 614 | 606 | 543 | 536 | 536 | 529 | 529 | 521 | 514 | 440 | 428 | 368 | 304 | 299 | 299 | 299 | 295 | 295 | 257 | 261 | 308 | 331 |
Swell 2 Height (m) Direction Period (s) | S 8 | S 7 | S 7 | S 7 | S 7 | S 7 | S 7 | S 9 | S 9 | S 6 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 7 | S 7 | S 7 | S 7 | S 7 | S 7 | S 7 |
| kJ | 42 | 39 | 37 | 37 | 48 | 23 | 23 | 57 | 57 | 29 | 50 | 35 | 34 | 48 | 48 | 46 | 45 | 49 | 35 | 34 | 35 | 47 | 23 | 23 |
Swell 3 Height (m) Direction Period (s) | SW 18 | S 14 | S 15 | S 15 | S 15 | SW 5 | SW 4 | — | S 13 | S 13 | S 13 | S 13 | S 13 | — | — | — | — | — | — | — | SW 6 | SW 6 | S 8 | S 8 |
| kJ | 111 | 4 | 4 | 4 | 4 | 5 | 5 | — | 3 | 3 | 3 | 3 | 3 | — | — | — | — | — | — | — | 5 | 5 | 12 | 13 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | SW 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 109 | 33 | 0 | 0 | 0 | 0 | 0 | 57 | 57 | 76 | 0 | 14 | 0 | 0 | 0 | 57 | 64 | 64 | 64 | 0 | 0 | 0 | 0 | 57 |
Best forecast wave conditions in Guanacaste | ||||||||||||||||||||||||
Best forecast wave conditions in Costa Rica | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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