Nazare Big Wave Challenge Gets Yellow Alert, Could Run Saturday in Giant Waves
70-foot plus waves predicted for Portuguese big wave tow surfing competition.
Surf Forecasts:
Chacarita surfForecast / Golfo de Nicoya / Costa Rica
48hr Weather and Surf, issued 11 pm Tuesday 16 Dec 2025 CSTForecast update in hr min s Forecast update imminent
Chacarita surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Chacarita sea temperature is
28.4° C
(Which is slightly warmer than usual)How big are the waves at Chacarita today?
The current surf forecast for Chacarita at 3AM is: 0.4m 15s primary swell from a Southwest direction and 0.5m 6s secondary swell from a South direction, 0.4m 12s secondary swell from a South-southwest direction (forecast issued at 11:00pm December 16). The wind direction is predicted to be offshore.
| Time (CST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Dec) | 1.5ft (0.4m) | 15s |
| Afternoon (17 Dec) | 1.5ft (0.4m) | 12s |
| Evening (17 Dec) | 1.5ft (0.4m) | 11s |
Table - waves today at Chacarita. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wednesday 17 | Thursday 18 | Friday 19 | ||||||||||||||||||||||
| 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 | 15 | 15 | 15 | 15 | 15 | 12 | 11 | 11 | 11 | 11 | 11 | 13 | 13 | 13 | 13 | 13 | 14 | 12 | 12 | 14 | 14 | 14 | 14 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 49 | 54 | 54 | 54 | 55 | 42 | 46 | 42 | 41 | 40 | 40 | 23 | 28 | 28 | 28 | 29 | 32 | 65 | 24 | 23 | 36 | 36 | 62 | 59 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | glass | off | off | glass | glass | cross- on | cross- on | on | glass | off | off | off | glass | cross- on | on | glass | glass | off | off | off | glass | cross- on | on | cross- on |
High Tide / height (m) | 12:57AM 2.34 | 1:37PM 2.11 | 1:42AM 2.39 | 2:20PM 2.18 | 2:24AM 2.44 | 3:01PM 2.24 | ||||||||||||||||||
Low Tide / height (m) | 6:42PM 0.81 | 7:26AM 0.57 | 7:30PM 0.76 | 8:09AM 0.48 | 8:14PM 0.69 | 8:50AM 0.41 | ||||||||||||||||||
Wednesday 17 | Thursday 18 | Friday 19 | ||||||||||||||||||||||
| Sunrise | - | - | - | 5:48 | - | - | - | - | - | - | - | 5:48 | - | - | - | - | - | - | - | 5:48 | - | - | - | - |
| Sunset | - | - | - | - | - | - | 5:21 | - | - | - | - | - | - | - | 5:21 | - | - | - | - | - | - | - | 5:22 | - |
 | |  |  |  | | |  | | | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 25 | 24 | 24 | 24 | 27 | 29 | 28 | 26 | 25 | 24 | 23 | 23 | 26 | 28 | 28 | 26 | 25 | 23 | 22 | 22 | 26 | 28 | 29 | 26 |
| Feels °C (?) | 29 | 27 | 27 | 27 | 30 | 30 | 30 | 29 | 28 | 26 | 24 | 24 | 28 | 30 | 30 | 30 | 27 | 24 | 22 | 22 | 27 | 29 | 31 | 28 |
- 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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