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:
Jaco Beach surfForecast / Golfo de Nicoya / Costa Rica
48hr Weather and Surf, issued 5 am Monday 15 Dec 2025 CSTForecast update in hr min s Forecast update imminent
Jaco Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Jaco Beach sea temperature is
28.5° C
(Which is slightly warmer than usual)How big are the waves at Jaco Beach today?
The current surf forecast for Jaco Beach at 9AM is: 1.0m 7s primary swell from a South-southwest direction and 0.4m 15s secondary swell from a Southwest direction (forecast issued at 05:00am December 15). The wind direction is predicted to be cross-offshore.
| Time (CST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (15 Dec) | 3.5ft (1.0m) | 7s |
| Afternoon (15 Dec) | 1.5ft (0.4m) | 15s |
| Evening (15 Dec) | 3.5ft (1.0m) | 6s |
Table - waves today at Jaco Beach. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Monday 15 | Tuesday 16 | Wednesday 17 | Thu 18 | |||||||||||||||||||||
| 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) (?) | 15 | 7 | 7 | 15 | 15 | 6 | 6 | 6 | 16 | 13 | 13 | 13 | 13 | 14 | 14 | 15 | 15 | 15 | 15 | 15 | 12 | 13 | 13 | 13 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 104 | 79 | 93 | 76 | 76 | 70 | 75 | 70 | 91 | 98 | 96 | 95 | 62 | 64 | 132 | 134 | 134 | 134 | 104 | 75 | 53 | 78 | 109 | 109 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | cross- off | cross- off | glass | cross | off | off | cross- off | cross- off | cross- off | glass | cross | cross- off | cross- off | off | off | cross- off | cross- off | glass | cross- on | cross | glass | cross- off | off |
High Tide / height (m) | 11:31AM 2.03 | 11:45PM 2.32 | 12:26PM 2.06 | 12:34AM 2.35 | 1:14PM 2.11 | |||||||||||||||||||
Low Tide / height (m) | 5:25AM 0.72 | 5:27PM 0.84 | 6:17AM 0.66 | 6:19PM 0.82 | 7:04AM 0.58 | 7:07PM 0.77 | ||||||||||||||||||
Monday 15 | Tuesday 16 | Wednesday 17 | Thu 18 | |||||||||||||||||||||
| Sunrise | - | 5:46 | - | - | - | - | - | - | - | 5:46 | - | - | - | - | - | - | - | 5:47 | - | - | - | - | - | - |
| Sunset | - | - | - | - | 5:20 | - | - | - | - | - | - | - | 5:21 | - | - | - | - | - | - | - | 5:21 | - | - | - |
 |  | | | | | |  | |  | | | | | | | | |  | | | | | | |
Rain (mm) | 3 | 4 | 1 | 1 | 1 | 1 | 1 | - | - | - | - | - | - | 2 | 1 | 1 | - | - | - | - | - | 1 | - | - |
| Temp. °C | 25 | 25 | 26 | 26 | 27 | 26 | 26 | 25 | 24 | 24 | 26 | 27 | 27 | 26 | 26 | 25 | 25 | 25 | 26 | 27 | 27 | 26 | 26 | 25 |
| Feels °C (?) | 28 | 29 | 29 | 30 | 31 | 30 | 30 | 28 | 26 | 26 | 28 | 29 | 29 | 29 | 30 | 28 | 28 | 27 | 29 | 30 | 29 | 29 | 29 | 28 |
- 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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