Using Surf-Forecast’s Historical Surf Data To Find The Most Consistent Waves On Earth
Using our statistical data for 7000 spots dating back to 2006, we can find those waves that break the most, with the best winds.
Surf Forecasts:
Islita surfForecast / Guanacaste / Costa Rica
48hr Weather and Surf, issued 5 am Wednesday 24 Dec 2025 CSTForecast update in hr min s Forecast update imminent
Islita surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Islita sea temperature is
28.5° C
(Which is 1.2°C warmer than normal for this time of year)How big are the waves at Islita today?
The current surf forecast for Islita at 10AM is: 0.5m 14s primary swell from a Southwest direction and 0.6m 10s secondary swell from a South direction (forecast issued at 05:00am December 24). The wind direction is predicted to be offshore.
| Time (CST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (24 Dec) | 1.5ft (0.5m) | 14s |
| Afternoon (24 Dec) | 1.5ft (0.5m) | 13s |
| Evening (24 Dec) | 1.5ft (0.5m) | 13s |
Table - waves today at Islita. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wednesday 24 | Thursday 25 | Friday 26 | Sat 27 | |||||||||||||||||||||
| 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 17 | 16 | 16 | 16 | 16 | 16 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 102 | 99 | 91 | 88 | 87 | 85 | 85 | 85 | 85 | 61 | 43 | 58 | 80 | 80 | 52 | 49 | 49 | 48 | 71 | 67 | 91 | 91 | 90 | 90 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | off | off | glass | on | glass | glass | off | off | off | glass | cross- on | cross- on | glass | glass | glass | off | cross- off | off | on | cross- on | glass | glass | off |
High Tide / height (m) | 5:09AM 2.34 | 5:44PM 2.29 | 5:48AM 2.29 | 6:23PM 2.32 | 6:30AM 2.22 | 7:05PM 2.34 | ||||||||||||||||||
Low Tide / height (m) | 11:27AM 0.34 | 11:45PM 0.60 | 12:03PM 0.38 | 12:28AM 0.61 | 12:42PM 0.44 | |||||||||||||||||||
Wednesday 24 | Thursday 25 | Friday 26 | Sat 27 | |||||||||||||||||||||
| Sunrise | - | 5:54 | - | - | - | - | - | - | - | 5:54 | - | - | - | - | - | - | - | 5:54 | - | - | - | - | - | - |
| Sunset | - | - | - | - | 5:27 | - | - | - | - | - | - | - | 5:28 | - | - | - | - | - | - | - | 5:28 | - | - | - |
 |  | | | | | | | | | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 24 | 23 | 26 | 29 | 29 | 26 | 25 | 24 | 24 | 24 | 26 | 28 | 28 | 26 | 25 | 25 | 24 | 24 | 26 | 28 | 28 | 26 | 25 | 24 |
| Feels °C (?) | 27 | 25 | 28 | 33 | 31 | 29 | 28 | 27 | 27 | 27 | 29 | 30 | 31 | 29 | 29 | 29 | 27 | 27 | 29 | 31 | 30 | 29 | 28 | 27 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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