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Islita Surf Forecast
/ Guanacaste (28 surf breaks) /
Surf Forecasts:
Islita surfForecast / Guanacaste / Costa Rica
48hr Weather and Surf, issued 11 pm Friday 22 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
30.8° 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 3AM is: 0.8m 14s primary swell from a Southwest direction and 0.7m 9s secondary swell from a South direction (forecast issued at 11:00pm May 22). The wind direction is predicted to be glassy and the swell rating is 2.
| Time (CST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (23 May) | 2ft (0.6m) | 14s |
| Afternoon (23 May) | 2ft (0.6m) | 16s |
| Evening (23 May) | 2ft (0.6m) | 16s |
Table - waves today at Islita. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 16mm), heaviest on Sun afternoon. Warm (max 31°C on Sun morning, min 27°C on Sat night). Wind will be generally light. | ||||||||||||||||||||||||
Saturday 23 | Sunday 24 | Monday 25 | ||||||||||||||||||||||
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 | 3 PM | 6 PM | |
Swell Height Map |  |    |    |    | ||||||||||||||||||||
SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 18 | SW 19 | SW 18 | SW 15 | SW 15 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | |
234 | 238 | 231 | 155 | 153 | 151 | 201 | 302 | 163 | 163 | 169 | 409 | 577 | 272 | 266 | 385 | 496 | 560 | 653 | 653 | 661 | 737 | 640 | 704 | |
Wind (km/h) | ||||||||||||||||||||||||
glassy | glassy | glassy | glassy | glassy | cross-on | cross-on | glassy | glassy | glassy | glassy | off | glassy | on | cross-on | on | glassy | glassy | off | off | glassy | on | cross-on | glassy | |
High Tide | 8:01AM2.38m | 8:20PM2.22m | 9:02AM2.33m | 9:25PM2.11m | 10:03AM2.30m | |||||||||||||||||||
Low Tide | 1:37AM0.30m | 2:14PM0.55m | 2:37AM0.44m | 3:21PM0.61m | 3:38AM0.55m | 4:27PM0.62m | ||||||||||||||||||
 | |  |  |  |  | | |  |  | | | | | | | | | | | | | | | |
 | — | — | 5:18 | — | — | — | — | — | — | — | 5:18 | — | — | — | — | — | — | — | 5:18 | — | — | — | — | — |
 | — | — | — | — | — | — | 5:55 | — | — | — | — | — | — | — | 5:57 | — | — | — | — | — | — | — | 5:57 | — |
— | — | 3 | 3 | — | — | 1 | 1 | — | — | — | — | — | — | 2 | 4 | 1 | — | — | — | — | — | — | 1 | |
Temp °C | 29 | 28 | 28 | 28 | 30 | 30 | 30 | 29 | 29 | 28 | 27 | 27 | 30 | 31 | 30 | 29 | 28 | 28 | 27 | 27 | 29 | 31 | 30 | 29 |
34 | 33 | 33 | 33 | 35 | 33 | 34 | 34 | 34 | 33 | 32 | 31 | 34 | 34 | 34 | 33 | 33 | 33 | 31 | 31 | 33 | 34 | 33 | 34 | |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 14 | SW 14 | S 9 | S 9 | S 9 | S 8 | S 8 | S 8 | S 8 | S 8 | SW 18 | SW 19 | S 8 | S 8 | SW 15 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 |
 kJ | 234 | 238 | 231 | 78 | 99 | 96 | 90 | 88 | 86 | 84 | 84 | 409 | 577 | 66 | 66 | 385 | 496 | 560 | 653 | 653 | 661 | 737 | 640 | 704 |
Swell 2 Height (m) Direction Period (s) | S 8 | S 9 | S 9 | SW 14 | SW 14 | SW 14 | SW 16 | SW 16 | SW 13 | SW 16 | SW 16 | S 8 | S 8 | SW 15 | SW 15 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 7 |
| kJ | 65 | 78 | 80 | 155 | 153 | 151 | 201 | 302 | 109 | 163 | 169 | 64 | 66 | 178 | 266 | 66 | 49 | 49 | 46 | 46 | 45 | 30 | 41 | 26 |
Swell 3 Height (m) Direction Period (s) | SW 10 | SW 10 | SW 10 | SSW 10 | SSW 10 | SW 21 | SW 13 | SSW 10 | SW 16 | SW 13 | SW 13 | SW 9 | SW 9 | SW 18 | SW 18 | S 12 | S 11 | S 11 | S 11 | S 16 | S 16 | S 10 | SW 18 | S 10 |
| kJ | 15 | 15 | 15 | 9 | 9 | 70 | 58 | 9 | 163 | 108 | 109 | 3 | 3 | 272 | 206 | 11 | 10 | 10 | 10 | 5 | 5 | 19 | 111 | 8 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 57 | 57 | 0 | 0 | 0 | 0 | 0 | 0 | 56 | 109 | 43 | 0 | 0 | 0 | 0 | 0 | 64 | 109 | 0 |
Best forecast wave conditions in Guanacaste | ||||||||||||||||||||||||
Best forecast wave conditions in Costa Rica | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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Live Wind Speed (km/h)
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Ocean Swells (m)- Wind Speed (km/h)
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