Surf Forecasts:
How big are the waves at Islita today (21 Aug):
- Morning surf: Morning surf (21 Aug, local time) - 4ft (1.2m), 11s period with S swell.
- Afternoon surf: Afternoon surf (21 Aug, local time) - 4ft (1.2m), 11s period with S swell.
- Evening surf: Evening surf (21 Aug, local time) - 4ft (1.2m), 11s period with S swell.
The current surf forecast for Islita at 8AM is: 1.2m 11s primary swell from a South direction and 0.4m 15s secondary swell from a Southwest direction (forecast issued at 05:00am August 21). The wind direction is predicted to be offshore and the swell rating is 2.
| Time (CST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Aug) | 4ft (1.2m) | 11s |
| Afternoon (21 Aug) | 4ft (1.2m) | 11s |
| Evening (21 Aug) | 4ft (1.2m) | 11s |
Table - waves today at Islita. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 15mm), heaviest on Sun afternoon. Warm (max 31°C on Fri morning, min 25°C on Sun night). Wind will be generally light. | |||||||||||||||||||||||
Friday 21 | Saturday 22 | Sunday 23 | |||||||||||||||||||||
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) | SSW 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 | S 10 | S 10 | SW 20 | SSW 13 | SW 19 | SW 18 | SW 18 | SW 18 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 337 | 338 | 345 | 345 | 351 | 351 | 345 | 279 | 279 | 274 | 218 | 200 | 158 | 153 | 154 | 154 | 149 | 186 | 133 | 224 | 263 | 260 | 260 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | glassy | on | cross-on | cross-on | glassy | glassy | off | off | cross-off | on | on | glassy | cross-on | glassy | off | off | cross-off | cross-on | cross-on | glassy | cross-off |
High Tide | 8:40AM2.09m | 9:19PM1.80m | 9:41AM1.99m | 10:30PM1.75m | 10:49AM1.97m | ||||||||||||||||||
Low Tide | 2:20AM0.76m | 3:13PM0.74m | 3:19AM0.87m | 4:20PM0.79m | 4:28AM0.92m | 5:28PM0.77m | |||||||||||||||||
 |  | | | |  |  | | | | |  |  | | | | | | | | | | | |
 | 5:31 | — | — | — | — | — | — | — | 5:31 | — | — | — | — | — | — | — | 5:31 | — | — | — | — | — | — |
 | — | — | — | — | 5:55 | — | — | — | — | — | — | — | 5:55 | — | — | — | — | — | — | — | 5:54 | — | — |
mm | — | — | — | — | — | 1 | — | — | — | — | — | — | 1 | 2 | 3 | — | — | — | — | — | 3 | 4 | 1 |
Temp °C | 26 | 26 | 29 | 31 | 30 | 28 | 28 | 27 | 26 | 26 | 29 | 30 | 29 | 28 | 28 | 27 | 27 | 26 | 29 | 30 | 30 | 28 | 27 |
Feels °C | 30 | 30 | 33 | 35 | 34 | 32 | 34 | 32 | 30 | 30 | 33 | 33 | 33 | 33 | 33 | 32 | 31 | 29 | 33 | 34 | 35 | 33 | 31 |
Swell 1 Height (m) Direction Period (s) | SSW 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 | S 10 | S 10 | S 9 | S 9 | S 9 | S 9 | S 9 | S 9 |
| kJ | 337 | 338 | 345 | 345 | 351 | 351 | 345 | 279 | 279 | 274 | 218 | 200 | 158 | 153 | 154 | 154 | 149 | 140 | 106 | 106 | 106 | 109 | 109 |
Swell 2 Height (m) Direction Period (s) | SW 13 | SW 13 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 16 | SSW 16 | SSW 14 | SW 14 | SW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SW 13 | SSW 13 | SSW 13 | SW 19 | SW 18 | SW 18 | SW 18 |
| kJ | 82 | 56 | 55 | 55 | 55 | 56 | 109 | 201 | 177 | 131 | 95 | 95 | 133 | 127 | 120 | 118 | 84 | 120 | 118 | 224 | 263 | 260 | 260 |
Swell 3 Height (m) Direction Period (s) | SSW 19 | SW 16 | SW 12 | SW 12 | SW 12 | SW 12 | SW 13 | SW 6 | SW 6 | WSW 6 | SW 21 | SW 20 | SW 20 | SW 20 | SW 20 | SW 20 | SW 20 | SW 20 | SW 19 | SW 13 | SW 13 | SW 13 | SW 13 |
| kJ | 35 | 65 | 36 | 36 | 22 | 37 | 40 | 9 | 9 | 4 | 68 | 99 | 60 | 60 | 60 | 97 | 134 | 186 | 133 | 85 | 84 | 80 | 78 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 48 | 64 | 65 | 0 | 0 | 0 | 0 | 0 | 56 | 65 | 0 | 14 | 0 | 0 | 0 | 0 | 30 | 30 | 0 | 0 |
Best forecast wave conditions in Guanacaste | |||||||||||||||||||||||
Best forecast wave conditions in Costa Rica | |||||||||||||||||||||||
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