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 8 am Tuesday 16 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
21.2° C
(Which is slightly cooler than normal)How big are the waves at Nichinan today?
The current surf forecast for Nichinan at 2PM is: 0.5m 10s primary swell from a East-southeast direction (forecast issued at 08:00am December 16). The wind direction is predicted to be offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 Dec) | 2ft (0.6m) | 10s |
| Afternoon (16 Dec) | 1.5ft (0.5m) | 10s |
| Evening (16 Dec) | 1.5ft (0.5m) | 9s |
Table - waves today at Nichinan. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tuesday 16 | Wednesday 17 | Thursday 18 | Fri 19 | |||||||||||||||||||||
| 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 | 3 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 8 | 8 | 9 | 9 | 9 | 9 | 9 | 9 | 10 | 6 | 6 | 10 | 9 | 9 | 9 | 9 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 71 | 71 | 72 | 52 | 52 | 46 | 43 | 42 | 41 | 28 | 29 | 30 | 30 | 31 | 31 | 30 | 37 | 56 | 54 | 31 | 35 | 29 | 29 | 35 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | off | off | glass | glass | glass | off | off | cross- off | glass | glass | cross | cross | cross- off | cross- off | cross- off | off | off | cross- off | cross | cross | cross | cross- off |
High Tide / height (m) | 4:30AM 1.44 | 3:26PM 1.61 | 5:15AM 1.56 | 4:04PM 1.66 | 5:53AM 1.65 | 4:40PM 1.71 | ||||||||||||||||||
Low Tide / height (m) | 9:42AM 0.94 | 10:26PM 0.33 | 10:31AM 0.95 | 11:01PM 0.21 | 11:13AM 0.95 | 11:35PM 0.12 | ||||||||||||||||||
Tuesday 16 | Wednesday 17 | Thursday 18 | Fri 19 | |||||||||||||||||||||
| Sunrise | - | 7:05 | - | - | - | - | - | - | - | 7:05 | - | - | - | - | - | - | - | 7:07 | - | - | - | - | - | - |
| Sunset | - | - | - | 5:12 | - | - | - | - | - | - | - | 5:12 | - | - | - | - | - | - | - | 5:13 | - | - | - | - |
 |  | | | | | | | | | |  | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 8 | 8 | 7 | 9 | 12 | 13 | 12 | 11 | 11 | 11 | 12 | 13 | 16 | 18 | 16 | 14 | 12 | 11 | 12 | 13 | 14 | 15 | 14 | 13 |
| Feels °C (?) | 4 | 5 | 3 | 6 | 10 | 11 | 11 | 9 | 8 | 8 | 10 | 11 | 13 | 15 | 14 | 12 | 9 | 9 | 10 | 10 | 11 | 12 | 11 | 10 |
- 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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