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Islita Surf Forecast
/ Guanacaste (28 surf breaks) /
Surf Forecasts:
Islita surfForecast / Guanacaste / Costa Rica
48hr Weather and Surf, issued 11 am Wednesday 13 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
30.6° C
(Which is 1.6°C warmer than normal for this time of year)How big are the waves at Islita today?
The current surf forecast for Islita at 6PM is: 1.0m 16s primary swell from a Southwest direction and 0.8m 10s secondary swell from a South direction (forecast issued at 11:00am May 13). The wind direction is predicted to be onshore.
| Time (CST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 May) | 2ft (0.6m) | 14s |
| Afternoon (13 May) | 2ft (0.6m) | 16s |
| Evening (13 May) | 3.5ft (1.0m) | 16s |
Table - waves today at Islita. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastSome drizzle, heaviest during Thu afternoon. Warm (max 31°C on Wed morning, min 27°C on Wed night). Wind will be generally light. | ||||||||||||||||||||||||
Wed 13 | Thursday 14 | Friday 15 | Sat 16 | |||||||||||||||||||||
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 | 9 PM | 12 AM | 3 AM | 6 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SW 17 | SW 16 | SW 16 | SW 16 | SW 16 | 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 14 | SW 14 | SSW 14 | SSW 13 | |
147 | 219 | 216 | 502 | 483 | 453 | 509 | 429 | 551 | 543 | 536 | 313 | 308 | 304 | 469 | 463 | 401 | 469 | 469 | 395 | 390 | 368 | 318 | 313 | |
Wind (km/h) | ||||||||||||||||||||||||
glassy | on | cross-on | on | glassy | glassy | glassy | off | glassy | on | cross-on | on | glassy | glassy | glassy | off | glassy | on | on | cross-on | glassy | glassy | glassy | off | |
High Tide | 11:29AM2.32m | 00:00AM2.11m | 12:20PM2.49m | 00:54AM2.24m | 1:11PM2.65m | 1:46AM2.37m | ||||||||||||||||||
Low Tide | 5:54PM0.53m | 6:00AM0.54m | 6:47PM0.34m | 6:52AM0.41m | 7:37PM0.16m | |||||||||||||||||||
 | |  |  | |  | | | | | |  | | | | | | | | | | | | | |
 | 5:20 | — | — | — | — | — | 5:20 | — | — | — | — | — | — | — | 5:20 | — | — | — | — | — | — | — | 5:20 | — |
 | — | — | 5:53 | — | — | — | — | — | — | — | 5:54 | — | — | — | — | — | — | — | 5:54 | — | — | — | — | 5:54 |
— | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 30 | 31 | 30 | 29 | 29 | 28 | 27 | 27 | 30 | 31 | 30 | 29 | 29 | 28 | 27 | 27 | 29 | 31 | 30 | 29 | 29 | 28 | 27 | 27 |
34 | 33 | 33 | 33 | 35 | 33 | 31 | 30 | 34 | 33 | 32 | 33 | 34 | 33 | 32 | 31 | 32 | 33 | 32 | 33 | 34 | 33 | 31 | 31 | |
Swell 1 Height (m) Direction Period (s) | S 10 | S 10 | S 10 | SW 16 | SW 16 | 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 14 | SW 14 | SSW 14 | SSW 13 |
 kJ | 131 | 133 | 138 | 502 | 483 | 453 | 509 | 429 | 551 | 543 | 536 | 313 | 308 | 304 | 469 | 463 | 401 | 469 | 469 | 395 | 390 | 368 | 318 | 313 |
Swell 2 Height (m) Direction Period (s) | SW 14 | SW 13 | SW 13 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | SSW 16 | SW 16 | SSW 16 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 9 | S 9 |
| kJ | 147 | 144 | 144 | 136 | 133 | 100 | 98 | 96 | 96 | 94 | 92 | 226 | 258 | 223 | 46 | 46 | 46 | 46 | 46 | 46 | 45 | 44 | 41 | 41 |
Swell 3 Height (m) Direction Period (s) | SW 17 | SW 16 | SW 16 | NW 12 | NW 12 | W 12 | W 12 | W 12 | W 12 | W 15 | W 15 | S 10 | S 10 | S 10 | NW 9 | NW 8 | NW 8 | NW 8 | NW 13 | NW 7 | NW 13 | NW 12 | NW 12 | NW 8 |
| kJ | 147 | 219 | 216 | 5 | 6 | 3 | 3 | 3 | 3 | 4 | 4 | 68 | 66 | 66 | 3 | 3 | 3 | 2 | 7 | 2 | 7 | 6 | 6 | 3 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 56 | 109 | 56 | 0 | 0 | 0 | 0 | 0 | 56 | 109 | 43 | 0 | 0 | 0 | 0 | 0 | 56 | 76 | 56 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Guanacaste | ||||||||||||||||||||||||
Best forecast wave conditions in Costa Rica | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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