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Surf Forecasts:
Diria surfForecast / Guanacaste / Costa Rica
48hr Weather and Surf, issued 11 pm Sunday 07 Dec 2025 CSTForecast update in hr min s Forecast update imminent
Diria surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Diria sea temperature is
28.1° C
(Which is 1.0°C warmer than normal for this time of year)How big are the waves at Diria today?
The current surf forecast for Diria at 6AM is: 0.4m 16s primary swell from a South-southwest direction and 0.4m 12s secondary swell from a Southwest direction (forecast issued at 11:00pm December 07). An open ocean swell of 0.6m 6s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (CST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (08 Dec) | 1.5ft (0.4m) | 16s |
| Afternoon (08 Dec) | 1.5ft (0.5m) | 15s |
| Evening (08 Dec) | 2ft (0.6m) | 15s |
Table - waves today at Diria. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Monday 08 | Tuesday 09 | Wednesday 10 | ||||||||||||||||||||||
| 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 | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |  |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 12 | 12 | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 14 | 11 | 14 | 14 | 13 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 72 | 51 | 85 | 85 | 83 | 125 | 123 | 123 | 167 | 167 | 163 | 152 | 207 | 187 | 187 | 187 | 184 | 184 | 187 | 198 | 18 | 207 | 198 | 184 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | off | glass | on | cross- on | glass | glass | glass | glass | glass | glass | cross | cross- on | glass | off | off | off | off | cross- off | cross- off | on | cross |
High Tide / height (m) | 4:41AM 2.63 | 5:19PM 2.45 | 5:33AM 2.50 | 6:11PM 2.40 | 6:25AM 2.34 | |||||||||||||||||||
Low Tide / height (m) | 10:30PM 0.16 | 11:03AM -0.02 | 11:24PM 0.25 | 11:53AM 0.09 | 12:19AM 0.37 | 12:44PM 0.22 | ||||||||||||||||||
Monday 08 | Tuesday 09 | Wednesday 10 | ||||||||||||||||||||||
| Sunrise | - | - | - | 5:48 | - | - | - | - | - | - | - | 5:48 | - | - | - | - | - | - | - | 5:48 | - | - | - | - |
| Sunset | - | - | - | - | - | - | 5:21 | - | - | - | - | - | - | - | 5:21 | - | - | - | - | - | - | - | 5:22 | - |
 | | |  |  | | |  | |  | |  |  | | | | | | | | | | | | |
Rain (mm) | 3 | 1 | 1 | 1 | 1 | 2 | 1 | - | - | - | - | - | - | - | 1 | - | - | - | - | - | - | - | - | - |
| Temp. °C | 25 | 25 | 24 | 24 | 26 | 27 | 27 | 26 | 25 | 25 | 24 | 24 | 26 | 27 | 28 | 26 | 26 | 24 | 23 | 23 | 26 | 28 | 27 | 26 |
| Feels °C (?) | 28 | 28 | 27 | 27 | 30 | 31 | 30 | 30 | 29 | 30 | 28 | 28 | 30 | 30 | 30 | 30 | 30 | 26 | 25 | 25 | 27 | 30 | 30 | 29 |
- 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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