Surf Forecasts:
How big are the waves at Islita today (17 Aug):
- Morning surf: Morning surf (17 Aug, local time) - 3.5ft (1.1m), 14s period with SW swell.
- Afternoon surf: Afternoon surf (17 Aug, local time) - 3.5ft (1.1m), 14s period with SW swell.
- Evening surf: Evening surf (17 Aug, local time) - 3.5ft (1.1m), 14s period with SW swell.
The current surf forecast for Islita at 7AM is: 1.1m 14s primary swell from a Southwest direction and 1.0m 7s secondary swell from a South-southwest direction (forecast issued at 11:00pm August 16). The wind direction is predicted to be offshore and the swell rating is 3.
| Time (CST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Aug) | 3.5ft (1.1m) | 14s |
| Afternoon (17 Aug) | 3.5ft (1.1m) | 14s |
| Evening (17 Aug) | 3.5ft (1.1m) | 14s |
Table - waves today at Islita. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 27mm), heaviest during Sun night. Warm (max 30°C on Mon morning, min 24°C on Sun night). Wind will be generally light. | |||||||||||||||||
Monday 17 | Tuesday 18 | ||||||||||||||||
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 | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||
Wave Height (m) Direction Period (s) | 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 | SW 14 | SW 14 | SW 16 | SW 16 |
Wave Graph  | |||||||||||||||||
 kJ | 606 | 598 | 520 | 447 | 428 | 422 | 428 | 434 | 428 | 416 | 410 | 410 | 422 | 379 | 336 | 400 | 477 |
Wind (km/h) | |||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | cross | off | off | on | on | cross-on | cross-on | cross | cross-off | glassy | cross-off | cross-on | cross-on | cross-on | cross-off |
High Tide | 5:41AM2.67m | 6:00PM2.40m | 6:22AM2.54m | 6:44PM2.24m | |||||||||||||
Low Tide | 11:25PM0.16m | 11:57AM0.25m | 00:06AM0.30m | 12:40PM0.37m | |||||||||||||
 |  |  |  |  | | | | | |  |  | |  | | | | |
 | — | — | 5:31 | — | — | — | — | — | — | — | 5:31 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 5:58 | — | — | — | — | — | — | — | 5:58 | — | — |
mm | 5 | 5 | — | — | — | — | — | 2 | 1 | — | — | — | — | 2 | 5 | 4 | 1 |
Temp °C | 26 | 24 | 25 | 25 | 28 | 30 | 28 | 27 | 26 | 26 | 26 | 26 | 28 | 29 | 28 | 27 | 27 |
Feels °C | 31 | 29 | 29 | 29 | 31 | 33 | 32 | 31 | 30 | 30 | 30 | 30 | 32 | 33 | 32 | 31 | 31 |
Swell 1 Height (m) Direction Period (s) | 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 | SW 14 | S 8 | S 8 | SW 16 |
| kJ | 606 | 598 | 520 | 447 | 428 | 422 | 428 | 434 | 428 | 416 | 410 | 410 | 422 | 379 | 120 | 117 | 477 |
Swell 2 Height (m) Direction Period (s) | SSW 7 | SSW 7 | SSW 7 | SSW 7 | S 7 | S 8 | S 8 | S 8 | S 7 | S 7 | S 7 | S 8 | S 8 | S 8 | SW 14 | SW 16 | S 8 |
| kJ | 105 | 99 | 84 | 108 | 112 | 115 | 115 | 115 | 112 | 88 | 88 | 93 | 100 | 124 | 336 | 400 | 95 |
Swell 3 Height (m) Direction Period (s) | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 12 | S 12 | S 12 |
| kJ | 57 | 57 | 56 | 36 | 20 | 21 | 20 | 19 | 18 | 8 | 8 | 8 | 8 | 8 | 3 | 3 | 11 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||
Distance (km) | 0 | 0 | 30 | 0 | 0 | 57 | 56 | 14 | 14 | 14 | 0 | 0 | 0 | 30 | 30 | 14 | 0 |
Best forecast wave conditions in Guanacaste | |||||||||||||||||
Best forecast wave conditions in Costa Rica | |||||||||||||||||
Header Global | |||||||||||||||||
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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