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:
Shichirigahama surfForecast / Kanagawa / Japan
48hr Weather and Surf, issued 2 pm Friday 12 Dec 2025 JSTForecast update in hr min s Forecast update imminent
Shichirigahama surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Shichirigahama sea temperature is
18.7° C
(Which is slightly cooler than normal)How big are the waves at Shichirigahama today?
The current surf forecast for Shichirigahama at 4PM is: 0.1m 7s primary swell from a Southwest direction and 0.1m 5s secondary swell from a South direction (forecast issued at 02:00pm December 12). An open ocean swell of 0.4m 3s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 Dec) | - | - |
| Afternoon (12 Dec) | 0.5ft (0.1m) | 7s |
| Evening (12 Dec) | 0.5ft (0.1m) | 10s |
Table - waves today at Shichirigahama. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Friday 12 | Saturday 13 | Sunday 14 | Monday 15 | |||||||||||||||||||||
| 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 | 9 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 11 | 11 | 11 | 10 | 12 | 15 | 15 | 14 | 11 | 11 | 11 | 11 | 7 | 7 | 6 | 6 | 8 | 9 | 10 | 10 | 10 | 10 | 10 | 10 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 4 | 2 | 2 | 2 | 3 | 4 | 4 | 4 | 2 | 2 | 2 | 2 | 11 | 15 | 10 | 10 | 43 | 236 | 346 | 666 | 621 | 347 | 116 | 81 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | off | off | off | off | off | off | off | cross- off | cross- off | off | off | off | off | off | off | cross- off | cross- off | cross | cross- on | cross- on | cross | cross | cross |
High Tide / height (m) | 10:34AM 1.31 | 10:08PM 1.05 | 11:23AM 1.30 | 12:13AM 1.02 | 12:10PM 1.31 | 2:15AM 1.08 | ||||||||||||||||||
Low Tide / height (m) | 5:20PM 0.82 | 4:28AM 0.64 | 6:38PM 0.67 | 5:45AM 0.78 | 7:37PM 0.51 | 7:02AM 0.89 | ||||||||||||||||||
Friday 12 | Saturday 13 | Sunday 14 | Monday 15 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | 6:41 | - | - | - | - | - | - | - | 6:41 | - | - | - | - | - | - | - | 6:41 |
| Sunset | - | 4:29 | - | - | - | - | - | - | - | 4:30 | - | - | - | - | - | - | - | 4:30 | - | - | - | - | - | - |
 | |  |  | | | | | | |  | |  | | |  | |  | | | | | |  | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | 1 | 1 | - | - | 2 | 3 | 2 | 1 | - | - | - | - | - | - |
| Temp. °C | 9 | 10 | 7 | 6 | 5 | 5 | 5 | 4 | 6 | 6 | 6 | 6 | 6 | 6 | 5 | 6 | 7 | 9 | 12 | 12 | 11 | 10 | 10 | 10 |
| Feels °C (?) | 0 | 2 | -2 | -2 | -2 | -1 | -1 | -2 | 1 | 1 | 1 | 0 | -1 | 0 | 0 | -1 | 1 | 7 | 7 | 5 | 3 | 5 | 3 | 5 |
- 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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