Nazare Big Wave Challenge Gets Yellow Alert, Could Run Saturday in Giant Waves
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Surf Forecasts:
Tamarindo surfForecast / Guanacaste / Costa Rica
48hr Weather and Surf, issued 11 pm Thursday 11 Dec 2025 CSTForecast update in hr min s Forecast update imminent
Tamarindo surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Tamarindo sea temperature is
28.5° C
(Which is 1.6°C warmer than normal for this time of year)How big are the waves at Tamarindo today?
The current surf forecast for Tamarindo at 1AM is: 0.6m 12s primary swell from a South-southwest direction (forecast issued at 11:00pm December 11). An open ocean swell of 0.5m 6s is not directed at the surf break, a second open ocean swell of 0.6m 5s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (CST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 Dec) | 1.5ft (0.5m) | 12s |
| Afternoon (12 Dec) | 1ft (0.3m) | 4s |
| Evening (12 Dec) | 1.5ft (0.4m) | 11s |
Table - waves today at Tamarindo. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Friday 12 | Saturday 13 | Sunday 14 | ||||||||||||||||||||||
| 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 | 12 | 12 | 12 | 4 | 4 | 4 | 11 | 7 | 7 | 18 | 11 | 11 | 12 | 7 | 7 | 16 | 16 | 16 | 7 | 7 | 12 | 7 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 113 | 113 | 81 | 79 | 77 | 7 | 4 | 4 | 42 | 79 | 82 | 49 | 23 | 23 | 38 | 79 | 79 | 66 | 66 | 67 | 60 | 17 | 43 | 12 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross- off | cross- off | off | glass | cross | off | off | cross- off | cross- off | cross- off | cross- off | cross- off | off | off | off | off | cross- off | cross- off | cross- off | glass | cross- off |
High Tide / height (m) | 8:17AM 2.02 | 8:55PM 2.18 | 9:18AM 1.90 | 9:51PM 2.12 | 10:21AM 1.83 | |||||||||||||||||||
Low Tide / height (m) | 2:16AM 0.59 | 2:30PM 0.52 | 3:19AM 0.66 | 3:26PM 0.64 | 4:21AM 0.67 | 4:23PM 0.71 | ||||||||||||||||||
Friday 12 | Saturday 13 | Sunday 14 | ||||||||||||||||||||||
| Sunrise | - | - | - | 5:50 | - | - | - | - | - | - | - | 5:50 | - | - | - | - | - | - | - | 5:50 | - | - | - | - |
| Sunset | - | - | - | - | - | - | 5:22 | - | - | - | - | - | - | - | 5:22 | - | - | - | - | - | - | - | 5:22 | - |
 | | |  | | |  |  |  | | | | | | | | | | | | | |  | | |
Rain (mm) | - | - | - | - | - | - | - | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 2 | 2 |
| Temp. °C | 26 | 26 | 24 | 24 | 27 | 29 | 29 | 27 | 26 | 25 | 24 | 24 | 27 | 29 | 29 | 27 | 25 | 24 | 24 | 23 | 27 | 29 | 28 | 27 |
| Feels °C (?) | 25 | 26 | 25 | 26 | 27 | 30 | 33 | 30 | 29 | 28 | 27 | 27 | 28 | 30 | 30 | 29 | 26 | 25 | 26 | 25 | 29 | 31 | 32 | 31 |
- Map Icons:
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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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