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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 Wednesday 27 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
30.4° C
(Which is 1.8°C warmer than normal for this time of year)How big are the waves at Islita today (28 May):
- Morning surf: Morning surf (28 May, local time) - 3ft (0.9m), 14s period with SW swell.
- Afternoon surf: Afternoon surf (28 May, local time) - 3ft (0.9m), 15s period with SW swell.
- Evening surf: Evening surf (28 May, local time) - 2ft (0.6m), 16s period with SW swell.
The current surf forecast for Islita at 7AM is: 0.9m 14s primary swell from a Southwest direction and 0.6m 7s secondary swell from a South direction (forecast issued at 11:00pm May 27). The wind direction is predicted to be glassy and the swell rating is 2.
| Time (CST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (28 May) | 3ft (0.9m) | 14s |
| Afternoon (28 May) | 3ft (0.9m) | 15s |
| Evening (28 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 ForecastHeavy rain (total 36mm), heaviest during Thu afternoon. Warm (max 30°C on Thu morning, min 26°C on Fri afternoon). Wind will be generally light. | ||||||||||||||||||||||||
Thursday 28 | Friday 29 | Saturday 30 | ||||||||||||||||||||||
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 13 | SW 13 | SW 13 | SW 13 | SW 14 | SW 14 | SW 15 | SW 13 | SW 16 | SW 13 | SW 13 | SW 13 | SW 14 | SW 14 | SW 14 | S 17 | S 17 | SW 14 | SW 14 | S 18 | S 15 | S 17 | S 17 | S 17 | |
295 | 295 | 295 | 261 | 308 | 331 | 355 | 202 | 170 | 205 | 261 | 261 | 276 | 293 | 164 | 167 | 217 | 169 | 272 | 300 | 221 | 603 | 470 | 546 | |
Wind (km/h) | ||||||||||||||||||||||||
glassy | glassy | cross-off | glassy | glassy | cross-on | cross-on | glassy | cross-on | glassy | glassy | glassy | cross-off | glassy | cross-on | cross | cross-off | cross-off | glassy | glassy | glassy | on | on | cross-on | |
High Tide | 00:28AM2.05m | 12:40PM2.32m | 1:15AM2.09m | 1:22PM2.35m | 1:58AM2.13m | 2:03PM2.38m | ||||||||||||||||||
Low Tide | 6:24AM0.65m | 7:06PM0.47m | 7:10AM0.63m | 7:48PM0.40m | 7:53AM0.59m | |||||||||||||||||||
 |  | |  | |  | | | |  | | |  | | |  | |  | | | | | | | |
 | — | — | 5:18 | — | — | — | — | — | — | — | 5:18 | — | — | — | — | — | — | — | 5:18 | — | — | — | — | — |
 | — | — | — | — | — | — | 5:58 | — | — | — | — | — | — | — | 5:58 | — | — | — | — | — | — | — | 5:58 | — |
— | 1 | 1 | — | — | 1 | 6 | 5 | 1 | — | 1 | 1 | — | 1 | 2 | 6 | 4 | 1 | — | — | — | — | 2 | 3 | |
Temp °C | 28 | 28 | 27 | 28 | 29 | 30 | 29 | 28 | 28 | 27 | 27 | 27 | 28 | 29 | 28 | 26 | 26 | 26 | 26 | 26 | 28 | 29 | 28 | 27 |
33 | 33 | 31 | 33 | 34 | 34 | 33 | 33 | 33 | 32 | 32 | 32 | 32 | 33 | 32 | 30 | 31 | 31 | 31 | 30 | 32 | 32 | 31 | 31 | |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 13 | SW 13 | SW 13 | SW 14 | SW 14 | SW 15 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 14 | SW 14 | SW 14 | SW 14 | SSW 7 | SSW 7 | SW 14 | SW 13 | SW 13 | S 17 | S 17 | S 17 |
 kJ | 295 | 295 | 295 | 261 | 308 | 331 | 355 | 202 | 170 | 205 | 261 | 261 | 276 | 293 | 164 | 167 | 48 | 48 | 272 | 257 | 208 | 603 | 470 | 546 |
Swell 2 Height (m) Direction Period (s) | S 8 | S 8 | S 7 | S 7 | S 7 | S 7 | S 7 | S 7 | SW 16 | S 8 | S 8 | S 7 | S 7 | S 7 | SW 12 | SSW 7 | S 17 | SW 14 | SSW 7 | SSW 7 | SSW 7 | SW 13 | SW 13 | SW 13 |
| kJ | 44 | 42 | 39 | 38 | 37 | 37 | 36 | 25 | 155 | 28 | 28 | 27 | 25 | 25 | 69 | 37 | 217 | 169 | 60 | 47 | 45 | 205 | 261 | 261 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | SW 16 | S 7 | SW 16 | WSW 5 | WSW 5 | S 19 | S 19 | S 7 | S 17 | SW 14 | SW 13 | S 18 | S 18 | S 15 | SSW 6 | SSW 6 | SSW 13 |
| kJ | — | — | — | — | — | — | — | 159 | 25 | 124 | 3 | 3 | 29 | 29 | 24 | 154 | 169 | 100 | 222 | 300 | 221 | 43 | 45 | 181 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | WSW 5 | WSW 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | 6 | 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 57 | 57 | 0 | 30 | 0 | 0 | 0 | 0 | 0 | 57 | 73 | 0 | 0 | 0 | 0 | 0 | 39 | 39 | 33 |
Best forecast wave conditions in Guanacaste | ||||||||||||||||||||||||
Best forecast wave conditions in Costa Rica | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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