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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:
Damas Rivermouth surfForecast / Golfo de Nicoya / Costa Rica
48hr Weather and Surf, issued 5 pm Wednesday 17 Dec 2025 CSTForecast update in hr min s Forecast update imminent
Damas Rivermouth surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Damas Rivermouth sea temperature is
28.4° C
(Which is slightly warmer than usual)How big are the waves at Damas Rivermouth today?
The current surf forecast for Damas Rivermouth at 12AM is: 0.6m 13s primary swell from a Southwest direction and 0.6m 6s secondary swell from a South-southwest direction (forecast issued at 05:00pm December 17). The wind direction is predicted to be glassy.
| Time (CST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Dec) | - | - |
| Afternoon (18 Dec) | 1.5ft (0.4m) | 11s |
| Evening (18 Dec) | 1.5ft (0.5m) | 13s |
Table - waves today at Damas Rivermouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wednesday 17 | Thursday 18 | Friday 19 | Saturday 20 | |||||||||||||||||||||
| 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 | 3 AM | 6 AM | 9 AM | 12 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 12 | 12 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 14 | 12 | 12 | 12 | 13 | 13 | 13 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 39 | 55 | 84 | 109 | 111 | 111 | 87 | 87 | 61 | 84 | 58 | 53 | 52 | 52 | 52 | 52 | 51 | 59 | 51 | 50 | 50 | 85 | 84 | 82 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | glass | glass | glass | cross- off | cross- off | glass | on | on | glass | glass | off | glass | cross- off | glass | on | on | glass | glass | glass | off | glass | glass | on |
High Tide / height (m) | 1:09PM 2.10 | 1:14AM 2.37 | 1:53PM 2.16 | 1:56AM 2.42 | 2:34PM 2.23 | 2:37AM 2.47 | ||||||||||||||||||
Low Tide / height (m) | 7:03PM 0.75 | 7:42AM 0.48 | 7:46PM 0.69 | 8:22AM 0.41 | 8:28PM 0.63 | 9:01AM 0.35 | ||||||||||||||||||
Wednesday 17 | Thursday 18 | Friday 19 | Saturday 20 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 5:46 | - | - | - | - | - | - | - | 5:47 | - | - | - | - | - | - | - | 5:47 | - | - |
| Sunset | 5:20 | - | - | - | - | - | - | - | 5:20 | - | - | - | - | - | - | - | 5:21 | - | - | - | - | - | - | - |
 |  | | |  |  | | |  | |  | |  | | | | | | | | | | | | |
Rain (mm) | - | 1 | 4 | 1 | - | - | - | - | 1 | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 27 | 26 | 26 | 25 | 25 | 24 | 27 | 27 | 27 | 26 | 25 | 25 | 24 | 23 | 26 | 27 | 27 | 26 | 25 | 24 | 24 | 24 | 26 | 27 |
| Feels °C (?) | 30 | 31 | 30 | 29 | 28 | 27 | 31 | 30 | 30 | 30 | 29 | 28 | 27 | 25 | 29 | 29 | 30 | 30 | 28 | 27 | 26 | 26 | 29 | 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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