Surf Forecasts:
How big are the waves at Islita today (12 Sep):
- Morning surf: Morning surf (12 Sep, local time) - 3ft (0.9m), 14s period with SW swell.
- Afternoon surf: Afternoon surf (12 Sep, local time) - 3ft (0.9m), 14s period with SW swell.
- Evening surf: Evening surf (12 Sep, local time) - 2.5ft (0.8m), 14s period with SW swell.
The current surf forecast for Islita at 4AM is: 1.0m 14s primary swell from a Southwest direction and 0.6m 8s secondary swell from a South direction (forecast issued at 11:00pm September 11). The wind direction is predicted to be offshore and the swell rating is 2.
| Time (CST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 Sep) | 3ft (0.9m) | 14s |
| Afternoon (12 Sep) | 3ft (0.9m) | 14s |
| Evening (12 Sep) | 2.5ft (0.8m) | 14s |
Table - waves today at Islita. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 18mm), heaviest on Sun afternoon. Warm (max 30°C on Sat morning, min 25°C on Sun night). Wind will be generally light. | |||||||||||||||||
Saturday 12 | Sunday 13 | ||||||||||||||||
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 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 19 |
Wave Graph  | |||||||||||||||||
 kJ | 466 | 459 | 398 | 398 | 346 | 346 | 341 | 281 | 221 | 215 | 173 | 171 | 171 | 140 | 138 | 138 | 184 |
Wind (km/h) | |||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-off | cross-off | off | glassy | on | on | on | glassy | glassy | cross-off | cross-off | glassy | on | cross-on | glassy | glassy |
High Tide | 3:08AM2.73m | 3:29PM2.60m | 3:49AM2.76m | 4:10PM2.57m | |||||||||||||
Low Tide | 8:54PM0.12m | 9:22AM0.12m | 9:35PM0.11m | 10:03AM0.10m | |||||||||||||
 | | |  |  | |  | | |  | | | | | | |  | |
 | — | — | 5:31 | — | — | — | — | — | — | — | 5:31 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 5:44 | — | — | — | — | — | — | — | 5:43 | — | — |
mm | 1 | 1 | 1 | — | — | — | 1 | 2 | 1 | — | 1 | 1 | — | 1 | 3 | 4 | — |
Temp °C | 28 | 27 | 27 | 26 | 29 | 30 | 30 | 28 | 28 | 27 | 27 | 26 | 29 | 29 | 29 | 28 | 27 |
Feels °C | 33 | 31 | 31 | 30 | 34 | 33 | 33 | 32 | 34 | 32 | 31 | 30 | 34 | 33 | 33 | 33 | 31 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | S 9 | S 9 | S 9 | S 9 | S 9 | S 9 | S 9 |
| kJ | 466 | 459 | 398 | 398 | 346 | 346 | 341 | 281 | 221 | 215 | 78 | 78 | 78 | 76 | 99 | 74 | 73 |
Swell 2 Height (m) Direction Period (s) | S 7 | S 7 | S 7 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 9 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 |
| kJ | 51 | 53 | 40 | 41 | 58 | 63 | 46 | 46 | 66 | 76 | 173 | 171 | 171 | 140 | 138 | 138 | 136 |
Swell 3 Height (m) Direction Period (s) | WNW 10 | WNW 10 | SSE 10 | SSE 10 | WNW 10 | SW 18 | SW 18 | SW 18 | SW 18 | SW 21 | SW 21 | SW 21 | SW 21 | SW 20 | SW 16 | SW 19 | SW 19 |
| kJ | 10 | 10 | 19 | 19 | 9 | 49 | 80 | 80 | 49 | 71 | 71 | 71 | 70 | 61 | 68 | 133 | 184 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 56 | 109 | 74 | 0 | 0 | 0 | 0 | 0 | 56 | 43 | 0 | 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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