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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 Sunday 10 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
30.3° C
(Which is 1.3°C warmer than normal for this time of year)How big are the waves at Islita today?
The current surf forecast for Islita at 8AM is: 0.9m 16s primary swell from a Southwest direction and 0.7m 12s secondary swell from a South direction (forecast issued at 11:00pm May 10). The wind direction is predicted to be cross-offshore and the swell rating is 3.
| Time (CST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 May) | 3ft (0.9m) | 16s |
| Afternoon (11 May) | 2.5ft (0.8m) | 15s |
| Evening (11 May) | 3ft (0.9m) | 15s |
Table - waves today at Islita. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 2mm), mostly falling on Mon night. Warm (max 31°C on Mon morning, min 27°C on Sun night). Wind will be generally light. | ||||||||||||||||||||||||
Monday 11 | Tuesday 12 | Wednesday 13 | ||||||||||||||||||||||
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 16 | SSW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | |
595 | 532 | 362 | 358 | 353 | 340 | 266 | 269 | 322 | 314 | 174 | 217 | 217 | 217 | 214 | 169 | 206 | 197 | 189 | 152 | 147 | 219 | 216 | 502 | |
Wind (km/h) | ||||||||||||||||||||||||
glassy | cross-off | off | off | glassy | on | on | on | glassy | glassy | cross-off | cross-off | glassy | cross-on | cross-on | cross-on | glassy | glassy | off | off | cross-off | on | on | on | |
High Tide | 9:39AM2.05m | 9:58PM1.94m | 10:35AM2.17m | 11:02PM2.00m | 11:29AM2.32m | |||||||||||||||||||
Low Tide | 3:12AM0.74m | 3:55PM0.83m | 4:09AM0.72m | 4:58PM0.71m | 5:05AM0.65m | 5:54PM0.53m | ||||||||||||||||||
 | | |  |  | | | |  |  | |  | | | | | | | | | | | | | |
 | — | — | 5:20 | — | — | — | — | — | — | — | 5:20 | — | — | — | — | — | — | — | 5:20 | — | — | — | — | — |
 | — | — | — | — | — | — | 5:53 | — | — | — | — | — | — | — | 5:53 | — | — | — | — | — | — | — | 5:53 | — |
— | — | — | — | — | — | — | — | — | 1 | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 29 | 28 | 27 | 27 | 30 | 31 | 30 | 29 | 29 | 28 | 27 | 27 | 30 | 30 | 30 | 29 | 28 | 28 | 27 | 27 | 30 | 31 | 30 | 29 |
33 | 32 | 30 | 30 | 33 | 32 | 33 | 33 | 34 | 33 | 31 | 31 | 35 | 32 | 33 | 33 | 33 | 33 | 31 | 31 | 33 | 32 | 32 | 33 | |
Swell 1 Height (m) Direction Period (s) | SW 16 | SSW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | SW 16 |
 kJ | 595 | 532 | 362 | 358 | 353 | 340 | 266 | 269 | 322 | 314 | 108 | 130 | 130 | 130 | 130 | 141 | 127 | 125 | 128 | 128 | 131 | 133 | 138 | 502 |
Swell 2 Height (m) Direction Period (s) | SSW 12 | S 12 | S 12 | S 12 | S 12 | S 11 | S 11 | S 11 | S 11 | S 10 | SW 15 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | S 10 |
| kJ | 157 | 148 | 139 | 134 | 130 | 127 | 163 | 125 | 112 | 102 | 174 | 217 | 217 | 217 | 214 | 169 | 206 | 197 | 189 | 149 | 147 | 144 | 144 | 136 |
Swell 3 Height (m) Direction Period (s) | NW 13 | SW 11 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | W 9 | W 8 | SSW 15 | SSW 15 | SSW 14 | SSW 15 | SSW 15 | SSW 14 | SW 18 | SW 18 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | NW 12 |
| kJ | 7 | 20 | 89 | 87 | 87 | 86 | 85 | 77 | 1 | 1 | 71 | 42 | 69 | 42 | 21 | 37 | 85 | 83 | 111 | 152 | 147 | 219 | 216 | 5 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 39 | 39 | 39 | 0 | 0 | 0 | 0 | 0 | 57 | 64 | 76 | 0 | 0 | 0 | 0 | 0 | 43 | 65 | 43 |
Best forecast wave conditions in Guanacaste | ||||||||||||||||||||||||
Best forecast wave conditions in Costa Rica | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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