Surf Forecasts:
How big are the waves at Islita today (19 Aug):
- Morning surf: Morning surf (19 Aug, local time) - 3ft (0.9m), 15s period with SW swell.
- Afternoon surf: Afternoon surf (19 Aug, local time) - 3ft (0.9m), 14s period with SW swell.
- Evening surf: Evening surf (19 Aug, local time) - 2.5ft (0.8m), 14s period with SW swell.
The current surf forecast for Islita at 7AM is: 0.9m 15s primary swell from a Southwest direction and 0.9m 8s secondary swell from a South direction (forecast issued at 11:00pm August 18). The wind direction is predicted to be offshore and the swell rating is 2.
| Time (CST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 Aug) | 3ft (0.9m) | 15s |
| Afternoon (19 Aug) | 3ft (0.9m) | 14s |
| Evening (19 Aug) | 2.5ft (0.8m) | 14s |
Table - waves today at Islita. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 30mm), heaviest during Thu night. Warm (max 30°C on Fri morning, min 26°C on Tue night). Wind will be generally light. | |||||||||||||||||
Wednesday 19 | Thursday 20 | ||||||||||||||||
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 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SSW 9 | SSW 9 | SSW 11 | SSW 11 |
Wave Graph  | |||||||||||||||||
 kJ | 477 | 477 | 453 | 355 | 355 | 350 | 305 | 248 | 245 | 238 | 191 | 186 | 142 | 140 | 158 | 286 | 343 |
Wind (km/h) | |||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | glassy | glassy | off | glassy | glassy | glassy | glassy | off | glassy | off | off | glassy | on | cross-on | cross-on | glassy |
High Tide | 7:04AM2.38m | 7:29PM2.07m | 7:49AM2.22m | 8:19PM1.91m | |||||||||||||
Low Tide | 00:48AM0.46m | 1:25PM0.51m | 1:31AM0.62m | 2:15PM0.64m | |||||||||||||
 | |  |  | |  | | | | |  |  | | | | | | |
 | — | — | 5:31 | — | — | — | — | — | — | — | 5:31 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 5:57 | — | — | — | — | — | — | — | 5:57 | — | — |
mm | 4 | 1 | — | — | — | 1 | 4 | 4 | 1 | — | — | — | — | — | 1 | 4 | 7 |
Temp °C | 27 | 26 | 26 | 26 | 28 | 29 | 28 | 27 | 27 | 26 | 26 | 26 | 28 | 29 | 29 | 28 | 28 |
Feels °C | 31 | 31 | 31 | 30 | 32 | 34 | 33 | 31 | 31 | 30 | 30 | 30 | 33 | 32 | 33 | 33 | 33 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 14 | S 8 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SSW 8 | SSW 9 | SSW 9 | SSW 11 | SSW 11 |
| kJ | 477 | 477 | 453 | 355 | 355 | 350 | 113 | 126 | 126 | 126 | 126 | 123 | 120 | 123 | 158 | 286 | 343 |
Swell 2 Height (m) Direction Period (s) | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 |
| kJ | 117 | 117 | 98 | 105 | 108 | 91 | 305 | 248 | 245 | 238 | 191 | 186 | 142 | 140 | 136 | 136 | 136 |
Swell 3 Height (m) Direction Period (s) | S 12 | S 12 | S 11 | S 11 | S 11 | SW 6 | NW 7 | NW 7 | NW 9 | SW 21 | S 14 | S 13 | S 13 | S 12 | S 13 | SW 18 | SW 19 |
| kJ | 11 | 11 | 10 | 10 | 9 | 14 | 2 | 2 | 3 | 17 | 4 | 14 | 13 | 28 | 28 | 13 | 14 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||
Distance (km) | 14 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 39 | 64 | 64 | 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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