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:
Waikiki surfForecast / Buenos Aires / Argentina
48hr Weather and Surf, issued 2 am Tuesday 16 Dec 2025 -03Forecast update in hr min s Forecast update imminent
Waikiki surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Waikiki sea temperature is
20.4° C
(Which is 4.0°C warmer than normal for this time of year)How big are the waves at Waikiki today?
The current surf forecast for Waikiki at 8AM is: 0.2m 8s primary swell from a East direction and 0.1m 10s secondary swell from a Southeast direction (forecast issued at 02:00am December 16). An open ocean swell of 1.4m 6s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (-03) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 Dec) | 0.5ft (0.2m) | 8s |
| Afternoon (16 Dec) | 0.5ft (0.2m) | 9s |
| Evening (16 Dec) | 0.5ft (0.2m) | 9s |
Table - waves today at Waikiki. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tuesday 16 | Wednesday 17 | Thursday 18 | ||||||||||||||||||||||
| 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 | 9 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    | |||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 8 | 8 | 8 | 8 | 10 | 9 | 9 | 9 | 7 | 10 | 3 | 3 | 4 | 4 | 4 | 6 | 6 | 6 | 6 | 6 | 6 | 7 | 7 | 7 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 14 | 14 | 12 | 5 | 9 | 9 | 8 | 8 | 4 | 9 | 4 | 12 | 13 | 9 | 14 | 53 | 49 | 21 | 17 | 14 | 14 | 20 | 18 | 10 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | off | off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- on | cross- on | cross- on | cross | cross | cross- on | cross- on | cross- off | cross | cross- on | on | cross- off | off | off | off | cross- off |
High Tide / height (m) | 4:59AM 1.20 | 5:15PM 1.13 | 5:36AM 1.28 | 6:09PM 1.06 | 6:11AM 1.35 | 7:00PM 1.01 | ||||||||||||||||||
Low Tide / height (m) | 11:10PM 0.56 | 11:54AM 0.61 | 11:42PM 0.63 | 12:53PM 0.53 | 12:08AM 0.69 | 1:41PM 0.46 | ||||||||||||||||||
Tuesday 16 | Wednesday 17 | Thursday 18 | ||||||||||||||||||||||
| Sunrise | - | - | 5:20 | - | - | - | - | - | - | - | 5:20 | - | - | - | - | - | - | - | 5:22 | - | - | - | - | - |
| Sunset | - | - | - | - | - | - | 8:08 | - | - | - | - | - | - | - | 8:09 | - | - | - | - | - | - | - | 8:09 | - |
 | |  |  | | | | | | |  | |  | | |  |  | | | | | | | | |
Rain (mm) | - | - | - | 1 | - | - | - | - | - | - | - | - | - | - | - | 4 | 1 | 1 | - | - | - | - | - | - |
| Temp. °C | 15 | 14 | 13 | 14 | 16 | 16 | 16 | 14 | 14 | 11 | 11 | 18 | 26 | 29 | 28 | 18 | 17 | 17 | 17 | 20 | 25 | 21 | 19 | 17 |
| Feels °C (?) | 9 | 7 | 6 | 6 | 8 | 9 | 11 | 10 | 12 | 5 | 4 | 10 | 19 | 23 | 23 | 17 | 17 | 17 | 15 | 19 | 24 | 15 | 11 | 11 |
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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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