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:
Tengan surfForecast / Okinawa / Japan
48hr Weather and Surf, issued 2 am Thursday 11 Dec 2025 JSTForecast update in hr min s Forecast update imminent
Tengan surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Tengan sea temperature is
24.7° C
(Which is slightly warmer than usual)How big are the waves at Tengan today?
The current surf forecast for Tengan at 8AM is: 0.7m 8s primary swell from a East-southeast direction and 0.5m 6s secondary swell from a North direction, 0.5m 3s secondary swell from a South direction (forecast issued at 02:00am December 11). The wind direction is predicted to be cross-shore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 Dec) | 2.5ft (0.7m) | 8s |
| Afternoon (11 Dec) | 2ft (0.6m) | 8s |
| Evening (11 Dec) | 5.5ft (1.7m) | 6s |
Table - waves today at Tengan. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Thursday 11 | Friday 12 | Saturday 13 | ||||||||||||||||||||||
| 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) (?) | 9 | 8 | 8 | 8 | 7 | 8 | 5 | 6 | 7 | 7 | 7 | 6 | 6 | 7 | 8 | 8 | 8 | 8 | 8 | 9 | 9 | 9 | 6 | 7 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 54 | 75 | 72 | 65 | 42 | 49 | 34 | 235 | 374 | 385 | 316 | 269 | 256 | 381 | 447 | 323 | 277 | 290 | 252 | 215 | 193 | 311 | 247 | 485 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross | cross | cross | cross- off | cross- off | cross | cross | cross | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off |
High Tide / height (m) | 10:08PM 1.60 | 11:59AM 1.56 | 11:18PM 1.44 | 12:54PM 1.55 | 12:53AM 1.33 | 1:46PM 1.56 | ||||||||||||||||||
Low Tide / height (m) | 5:06AM 0.40 | 5:51PM 0.96 | 6:00AM 0.57 | 7:15PM 0.88 | 7:01AM 0.72 | 8:31PM 0.75 | ||||||||||||||||||
Thursday 11 | Friday 12 | Saturday 13 | ||||||||||||||||||||||
| Sunrise | - | - | - | 7:05 | - | - | - | - | - | - | - | 7:05 | - | - | - | - | - | - | - | 7:05 | - | - | - | - |
| Sunset | - | - | - | - | - | 5:37 | - | - | - | - | - | - | - | 5:37 | - | - | - | - | - | - | - | 5:37 | - | - |
 |  | |  |  |  |  | | |  | |  | | | | |  | | | | | | | | |
Rain (mm) | - | - | - | - | 1 | 3 | 3 | - | - | - | - | - | - | - | - | - | 1 | - | - | - | - | - | - | - |
| Temp. °C | 22 | 22 | 22 | 22 | 23 | 22 | 21 | 21 | 21 | 21 | 21 | 21 | 22 | 21 | 21 | 21 | 21 | 21 | 21 | 22 | 22 | 22 | 21 | 20 |
| Feels °C (?) | 19 | 20 | 21 | 21 | 22 | 21 | 18 | 17 | 17 | 17 | 17 | 17 | 17 | 16 | 17 | 19 | 21 | 22 | 22 | 22 | 21 | 20 | 17 | 15 |
- 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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