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:
Nichinan surfForecast / Kyu Shu / Japan
48hr Weather and Surf, issued 2 am Sunday 14 Dec 2025 JSTForecast update in hr min s Forecast update imminent
Nichinan surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Nichinan sea temperature is
21.5° C
(Which is slightly cooler than normal)How big are the waves at Nichinan today?
The current surf forecast for Nichinan at 10AM is: 1.2m 8s primary swell from a East-southeast direction and 0.5m 11s secondary swell from a East direction (forecast issued at 02:00am December 14). An open ocean swell of 0.6m 3s is not directed at the surf break. The wind direction is predicted to be offshore and the swell rating is 2.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (14 Dec) | 4.5ft (1.3m) | 8s |
| Afternoon (14 Dec) | 2ft (0.6m) | 12s |
| Evening (14 Dec) | 1.5ft (0.5m) | 12s |
Table - waves today at Nichinan. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Sunday 14 | Monday 15 | Tuesday 16 | ||||||||||||||||||||||
| 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) (?) | 7 | 8 | 8 | 8 | 11 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 9 | 9 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 456 | 603 | 371 | 193 | 96 | 95 | 98 | 66 | 61 | 39 | 39 | 84 | 106 | 127 | 131 | 102 | 98 | 94 | 71 | 72 | 72 | 71 | 68 | 64 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | cross- off | off | off | off | off | off | off | off | off | off | off | off | glass | glass | glass | cross- off | cross- off | cross- off | off | glass | glass | glass | off |
High Tide / height (m) | 2:09AM 1.25 | 2:01PM 1.52 | 3:32AM 1.33 | 2:45PM 1.56 | 4:30AM 1.44 | 3:26PM 1.61 | ||||||||||||||||||
Low Tide / height (m) | 7:37AM 0.82 | 9:04PM 0.60 | 8:44AM 0.90 | 9:48PM 0.46 | 9:42AM 0.94 | |||||||||||||||||||
Sunday 14 | Monday 15 | Tuesday 16 | ||||||||||||||||||||||
| Sunrise | - | - | - | 7:05 | - | - | - | - | - | - | - | 7:05 | - | - | - | - | - | - | - | 7:05 | - | - | - | - |
| Sunset | - | - | - | - | - | 5:10 | - | - | - | - | - | - | - | 5:12 | - | - | - | - | - | - | - | 5:12 | - | - |
 |  |  |  | | | | | | | | | | | | | | | | | | | | | |
Rain (mm) | 34 | 3 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 15 | 15 | 11 | 11 | 11 | 12 | 11 | 9 | 8 | 8 | 8 | 9 | 12 | 13 | 12 | 10 | 10 | 9 | 8 | 9 | 13 | 14 | 13 | 12 |
| Feels °C (?) | 15 | 10 | 5 | 5 | 5 | 5 | 6 | 5 | 4 | 3 | 3 | 4 | 8 | 11 | 10 | 8 | 8 | 6 | 5 | 6 | 11 | 12 | 11 | 9 |
- 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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