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:
Nosara Beach surfForecast / Guanacaste / Costa Rica
48hr Weather and Surf, issued 11 am Tuesday 16 Dec 2025 CSTForecast update in hr min s Forecast update imminent
Nosara Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Nosara Beach sea temperature is
28.2° C
(Which is 1.1°C warmer than normal for this time of year)How big are the waves at Nosara Beach today?
The current surf forecast for Nosara Beach at 5PM is: 0.4m 14s primary swell from a Southwest direction and 0.6m 6s secondary swell from a South-southwest direction (forecast issued at 11:00am December 16). The wind direction is predicted to be cross-onshore.
| Time (CST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 Dec) | 1.5ft (0.4m) | 13s |
| Afternoon (16 Dec) | 1.5ft (0.4m) | 13s |
| Evening (16 Dec) | 2ft (0.6m) | 15s |
Table - waves today at Nosara Beach. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | |||||||||||||||||||||
| 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 | 3 AM | 6 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 13 | 13 | 13 | 14 | 15 | 15 | 15 | 15 | 15 | 15 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 62 | 62 | 62 | 93 | 134 | 171 | 171 | 134 | 134 | 104 | 74 | 109 | 109 | 111 | 111 | 111 | 111 | 111 | 109 | 106 | 100 | 93 | 92 | 92 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | glass | glass | cross- on | cross- off | off | cross- off | cross- off | off | on | on | on | glass | glass | cross- off | off | glass | cross | cross | cross | cross- off | cross- off | cross- off | cross- off |
High Tide / height (m) | 12:17PM 1.68 | 12:26AM 1.93 | 1:05PM 1.72 | 1:12AM 1.97 | 1:49PM 1.77 | 1:54AM 2.02 | ||||||||||||||||||
Low Tide / height (m) | 6:11AM 0.54 | 6:11PM 0.66 | 6:58AM 0.47 | 6:59PM 0.62 | 7:41AM 0.40 | 7:43PM 0.56 | ||||||||||||||||||
Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | |||||||||||||||||||||
| Sunrise | 5:50 | - | - | - | - | - | - | 5:52 | - | - | - | - | - | - | - | 5:52 | - | - | - | - | - | - | - | 5:52 |
| Sunset | - | - | 5:23 | - | - | - | - | - | - | - | 5:24 | - | - | - | - | - | - | - | 5:24 | - | - | - | - | - |
 | | |  | | |  |  |  | | |  | | | | | | |  |  | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 1 | - | - | - | - |
| Temp. °C | 27 | 29 | 29 | 27 | 26 | 25 | 24 | 25 | 27 | 28 | 27 | 26 | 26 | 25 | 24 | 24 | 26 | 28 | 27 | 26 | 26 | 25 | 25 | 24 |
| Feels °C (?) | 29 | 32 | 33 | 30 | 29 | 28 | 26 | 28 | 30 | 31 | 29 | 29 | 30 | 29 | 27 | 27 | 29 | 30 | 29 | 29 | 29 | 28 | 28 | 27 |
- 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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