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:
Nagai Point surfForecast / Kanagawa / Japan
48hr Weather and Surf, issued 8 pm Saturday 13 Dec 2025 JSTForecast update in hr min s Forecast update imminent
Nagai Point surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Nagai Point sea temperature is
18.6° C
(Which is slightly cooler than normal)How big are the waves at Nagai Point today?
The current surf forecast for Nagai Point at 3AM is: 0.4m 6s primary swell from a Southeast direction (forecast issued at 08:00pm December 13). An open ocean swell of 0.1m 11s is not directed at the surf break, a second open ocean swell of 0.3m 2s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (14 Dec) | 2ft (0.6m) | 7s |
| Afternoon (14 Dec) | 4.5ft (1.4m) | 10s |
| Evening (14 Dec) | 7ft (2.1m) | 8s |
Table - waves today at Nagai Point. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Sat 13 | Sunday 14 | Monday 15 | Tuesday 16 | |||||||||||||||||||||
| 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 | 9 AM | 12 PM | 3 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |   |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 11 | 6 | 6 | 6 | 6 | 7 | 7 | 10 | 10 | 8 | 10 | 9 | 9 | 10 | 10 | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 0 | 2 | 2 | 10 | 19 | 30 | 43 | 349 | 1144 | 545 | 274 | 550 | 110 | 98 | 36 | 22 | 21 | 20 | 12 | 11 | 7 | 7 | 7 | 7 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | glass | cross- on | on | cross- on | cross- on | cross- off | cross- off | glass | off | off | off | off | off | off | cross- off | glass | cross |
High Tide / height (m) | 11:18PM 1.07 | 12:01PM 1.27 | 1:08AM 1.09 | 12:45PM 1.30 | 2:31AM 1.17 | 1:26PM 1.34 | ||||||||||||||||||
Low Tide / height (m) | 5:42PM 0.75 | 5:18AM 0.67 | 6:52PM 0.61 | 6:31AM 0.77 | 7:48PM 0.45 | 7:38AM 0.84 | ||||||||||||||||||
Sat 13 | Sunday 14 | Monday 15 | Tuesday 16 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 6:41 | - | - | - | - | - | - | - | 6:41 | - | - | - | - | - | - | - | 6:41 | - | - |
| Sunset | - | - | - | - | - | - | - | 4:30 | - | - | - | - | - | - | - | 4:30 | - | - | - | - | - | - | - | 4:30 |
 | |  | | |  |  |  |  | | | | |  | |  |  | | | | | | | | |
Rain (mm) | - | - | 1 | - | 3 | 8 | 4 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 8 | 8 | 7 | 7 | 6 | 7 | 9 | 11 | 13 | 12 | 12 | 12 | 11 | 11 | 12 | 12 | 11 | 10 | 9 | 9 | 8 | 8 | 9 | 10 |
| Feels °C (?) | 2 | 2 | 0 | 0 | 0 | 0 | 3 | 10 | 7 | 9 | 7 | 7 | 6 | 6 | 9 | 7 | 3 | 4 | 3 | 3 | 2 | 3 | 6 | 7 |
- 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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