Surf Forecasts:
How big are the waves at Islita today (20 Aug):
- Morning surf: Morning surf (20 Aug, local time) - 3ft (0.9m), 9s period with SSW swell.
- Afternoon surf: Afternoon surf (20 Aug, local time) - 3ft (0.9m), 9s period with SSW swell.
- Evening surf: Evening surf (20 Aug, local time) - 3.5ft (1.1m), 11s period with S swell.
The current surf forecast for Islita at 8AM is: 0.6m 13s primary swell from a Southwest direction and 0.9m 9s secondary swell from a South-southwest direction (forecast issued at 05:00am August 20). The wind direction is predicted to be cross-offshore and the swell rating is 2.
| Time (CST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Aug) | 3ft (0.9m) | 9s |
| Afternoon (20 Aug) | 3ft (0.9m) | 9s |
| Evening (20 Aug) | 3.5ft (1.1m) | 11s |
Table - waves today at Islita. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 21mm), heaviest during Sat afternoon. Warm (max 31°C on Sat morning, min 26°C on Thu night). Wind will be generally light. | |||||||||||||||||||||||
Thursday 20 | Friday 21 | Saturday 22 | |||||||||||||||||||||
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 | 9 PM | |
Swell Height Map |  |  |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | SW 14 | SW 14 | SSW 9 | SSW 10 | SSW 9 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 10 | S 10 | S 10 | S 10 | S 10 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 224 | 186 | 142 | 150 | 138 | 281 | 281 | 275 | 326 | 338 | 345 | 345 | 351 | 351 | 345 | 279 | 279 | 274 | 218 | 202 | 194 | 190 | 153 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | glassy | on | on | glassy | glassy | glassy | off | cross-off | glassy | on | on | on | glassy | glassy | off | off | off | on | on | glassy | cross-off |
High Tide | 7:49AM2.22m | 8:19PM1.91m | 8:40AM2.09m | 9:19PM1.80m | 9:41AM1.99m | ||||||||||||||||||
Low Tide | 1:31AM0.62m | 2:15PM0.64m | 2:20AM0.76m | 3:13PM0.74m | 3:19AM0.87m | 4:20PM0.79m | |||||||||||||||||
 |  | |  |  |  | | |  | | | | | |  | | | | | | | | | |
 | 5:31 | — | — | — | — | — | — | — | 5:31 | — | — | — | — | — | — | — | 5:31 | — | — | — | — | — | — |
 | — | — | — | — | 5:57 | — | — | — | — | — | — | — | 5:55 | — | — | — | — | — | — | — | 5:55 | — | — |
mm | — | — | — | — | 1 | 5 | 1 | — | — | — | — | — | — | 1 | — | — | — | — | — | — | 3 | 8 | 2 |
Temp °C | 26 | 26 | 29 | 30 | 29 | 29 | 28 | 27 | 26 | 26 | 28 | 30 | 30 | 29 | 28 | 27 | 26 | 26 | 29 | 31 | 30 | 29 | 27 |
Feels °C | 30 | 30 | 34 | 33 | 33 | 34 | 33 | 31 | 30 | 30 | 32 | 33 | 34 | 34 | 34 | 32 | 30 | 30 | 33 | 35 | 34 | 34 | 31 |
Swell 1 Height (m) Direction Period (s) | SSW 9 | SSW 9 | SSW 9 | SSW 10 | SSW 9 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 10 | S 10 | S 10 | S 10 | S 10 |
| kJ | 126 | 123 | 123 | 150 | 138 | 281 | 281 | 275 | 326 | 338 | 345 | 345 | 351 | 351 | 345 | 279 | 279 | 274 | 218 | 202 | 194 | 190 | 153 |
Swell 2 Height (m) Direction Period (s) | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 16 | SSW 16 | SW 14 | SW 14 | SW 14 | SSW 14 | SSW 14 | SSW 13 |
| kJ | 224 | 186 | 142 | 142 | 136 | 136 | 136 | 84 | 82 | 56 | 55 | 55 | 55 | 56 | 109 | 201 | 179 | 96 | 95 | 95 | 133 | 127 | 120 |
Swell 3 Height (m) Direction Period (s) | S 14 | S 13 | S 13 | S 13 | S 12 | SW 18 | SW 19 | SSW 19 | SSW 19 | SW 16 | SW 12 | SW 12 | SW 12 | SW 12 | SW 13 | SW 6 | SW 6 | WSW 6 | WSW 6 | SW 20 | SW 20 | SW 20 | SW 20 |
| kJ | 4 | 14 | 13 | 30 | 47 | 13 | 14 | 36 | 35 | 65 | 36 | 36 | 22 | 37 | 40 | 8 | 9 | 7 | 6 | 99 | 60 | 60 | 60 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 39 | 33 | 0 | 0 | 0 | 0 | 0 | 0 | 56 | 64 | 0 | 0 | 0 | 0 | 0 | 0 | 56 | 70 |
Best forecast wave conditions in Guanacaste | |||||||||||||||||||||||
Best forecast wave conditions in Costa Rica | |||||||||||||||||||||||
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