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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 29 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
30.2° C
(Which is 1.6°C warmer than normal for this time of year)How big are the waves at Islita today (30 May):
- Morning surf: Morning surf (30 May, local time) - 3ft (0.9m), 13s period with SW swell.
- Afternoon surf: Afternoon surf (30 May, local time) - 3ft (0.9m), 17s period with S swell.
- Evening surf: Evening surf (30 May, local time) - 3ft (0.9m), 16s period with S swell.
The current surf forecast for Islita at 3AM is: 0.9m 14s primary swell from a Southwest direction and 0.8m 7s secondary swell from a South direction (forecast issued at 11:00pm May 29). The wind direction is predicted to be cross-shore.
| Time (CST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 May) | 3ft (0.9m) | 13s |
| Afternoon (30 May) | 3ft (0.9m) | 17s |
| Evening (30 May) | 3ft (0.9m) | 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 27mm), heaviest during Sat morning. Warm (max 30°C on Mon morning, min 27°C on Fri night). Wind will be generally light. | ||||||||||||||||||||||||
Saturday 30 | Sunday 31 | Monday 1 | ||||||||||||||||||||||
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 |  |    |    |    | ||||||||||||||||||||
S 17 | SW 14 | SW 14 | S 18 | SW 13 | S 17 | S 17 | S 17 | S 16 | S 16 | S 16 | S 16 | SW 20 | SW 20 | SW 19 | SW 19 | SW 19 | SW 18 | SW 18 | SW 18 | SW 18 | SW 18 | SW 17 | SW 17 | |
217 | 169 | 272 | 300 | 253 | 603 | 470 | 546 | 432 | 847 | 967 | 942 | 746 | 969 | 1210 | 1351 | 1323 | 1215 | 1516 | 1482 | 1634 | 1615 | 1579 | 1560 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross | cross | cross | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | glassy | glassy | on | on | glassy | glassy | glassy | glassy | off | glassy | cross-on | cross-on | cross | |
High Tide | 1:58AM2.13m | 2:03PM2.38m | 2:38AM2.16m | 2:43PM2.39m | 3:17AM2.19m | 3:22PM2.40m | ||||||||||||||||||
Low Tide | 7:53AM0.59m | 8:28PM0.35m | 8:33AM0.56m | 9:07PM0.31m | 9:13AM0.54m | |||||||||||||||||||
 |  | |  |  | | |  |  | | | | | | | | | | | | | | | | |
 | — | — | 5:18 | — | — | — | — | — | — | — | 5:18 | — | — | — | — | — | — | — | 5:18 | — | — | — | — | — |
 | — | — | — | — | — | — | 5:58 | — | — | — | — | — | — | — | 5:59 | — | — | — | — | — | — | — | 5:59 | — |
1 | — | — | — | 1 | 5 | 2 | — | — | — | — | 1 | 1 | 3 | 3 | 1 | — | 1 | — | 1 | 2 | 1 | 2 | 2 | |
Temp °C | 28 | 28 | 27 | 27 | 29 | 29 | 29 | 28 | 28 | 27 | 27 | 27 | 29 | 29 | 29 | 28 | 28 | 28 | 27 | 27 | 29 | 30 | 29 | 28 |
32 | 32 | 31 | 31 | 33 | 32 | 32 | 31 | 32 | 31 | 32 | 32 | 33 | 33 | 33 | 33 | 33 | 34 | 32 | 32 | 34 | 34 | 33 | 32 | |
Swell 1 Height (m) Direction Period (s) | SSW 7 | SSW 7 | SW 14 | SW 13 | SW 13 | S 17 | S 17 | S 17 | SSW 14 | S 16 | S 16 | S 16 | S 15 | SSW 14 | S 14 | SW 19 | SW 19 | SW 18 | SW 18 | SW 18 | SW 18 | SW 18 | SW 17 | SW 17 |
 kJ | 48 | 48 | 272 | 257 | 253 | 603 | 470 | 546 | 304 | 847 | 967 | 942 | 446 | 724 | 703 | 1351 | 1323 | 1215 | 1516 | 1482 | 1634 | 1615 | 1579 | 1560 |
Swell 2 Height (m) Direction Period (s) | S 17 | SW 14 | S 7 | S 7 | S 15 | SW 13 | SW 13 | SW 13 | S 16 | SSW 13 | SW 21 | SW 20 | SW 20 | SW 20 | SW 19 | S 14 | S 14 | S 14 | S 13 | S 13 | S 13 | S 13 | S 13 | S 12 |
| kJ | 217 | 169 | 59 | 44 | 224 | 205 | 261 | 261 | 432 | 257 | 533 | 575 | 746 | 969 | 1210 | 593 | 569 | 537 | 513 | 427 | 350 | 345 | 339 | 247 |
Swell 3 Height (m) Direction Period (s) | SW 14 | SW 12 | S 18 | S 18 | S 7 | S 6 | SSW 13 | SSW 13 | SW 13 | SW 21 | SW 13 | SSW 13 | SSW 13 | S 6 | SW 12 | SW 12 | SW 14 | SW 14 | — | — | — | — | — | W 18 |
| kJ | 169 | 98 | 222 | 300 | 44 | 41 | 139 | 181 | 193 | 543 | 158 | 206 | 222 | 20 | 96 | 122 | 248 | 200 | — | — | — | — | — | 6 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | S 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | 40 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 33 | 14 | 14 | 14 | 30 | 33 | 39 | 30 | 19 | 30 | 14 | 0 | 0 | 64 | 64 | 0 | 0 | 0 | 0 | 0 | 0 | 57 | 57 | 32 |
Best forecast wave conditions in Guanacaste | ||||||||||||||||||||||||
Best forecast wave conditions in Costa Rica | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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