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 8 pm Friday 12 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
24.5° C
(Which is slightly warmer than usual)How big are the waves at Tengan today?
The current surf forecast for Tengan at 3AM is: 1.4m 8s primary swell from a North-northwest direction and 0.8m 8s secondary swell from a East direction (forecast issued at 08:00pm December 12). The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Dec) | 4ft (1.2m) | 9s |
| Afternoon (13 Dec) | 3.5ft (1.0m) | 9s |
| Evening (13 Dec) | 1.5ft (0.4m) | 10s |
Table - waves today at Tengan. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Fri 12 | Saturday 13 | Sunday 14 | Monday 15 | |||||||||||||||||||||
| 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) (?) | 8 | 8 | 8 | 8 | 8 | 9 | 9 | 9 | 9 | 10 | 7 | 8 | 8 | 9 | 9 | 9 | 9 | 9 | 10 | 9 | 9 | 9 | 8 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 256 | 251 | 277 | 290 | 252 | 215 | 186 | 154 | 158 | 32 | 432 | 708 | 1066 | 1499 | 1684 | 1535 | 1464 | 1332 | 554 | 539 | 820 | 697 | 494 | 380 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | glass | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross | cross | cross | cross | cross- on | cross- on | cross- on |
High Tide / height (m) | 12:53AM 1.33 | 1:46PM 1.56 | 2:31AM 1.31 | 2:33PM 1.59 | 3:51AM 1.37 | |||||||||||||||||||
Low Tide / height (m) | 7:15PM 0.88 | 7:01AM 0.72 | 8:31PM 0.75 | 8:06AM 0.82 | 9:31PM 0.61 | 9:09AM 0.88 | ||||||||||||||||||
Fri 12 | Saturday 13 | Sunday 14 | Monday 15 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 7:05 | - | - | - | - | - | - | - | 7:07 | - | - | - | - | - | - | - | 7:07 | - | - |
| Sunset | - | - | - | - | - | - | - | 5:37 | - | - | - | - | - | - | - | 5:37 | - | - | - | - | - | - | - | 5:37 |
 |  |  | | |  |  |  | | | | |  |  | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 2 | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 22 | 22 | 22 | 21 | 21 | 21 | 23 | 23 | 22 | 22 | 21 | 19 | 18 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 18 | 18 | 19 |
| Feels °C (?) | 19 | 19 | 21 | 20 | 21 | 21 | 25 | 23 | 20 | 20 | 16 | 13 | 11 | 10 | 9 | 9 | 9 | 10 | 11 | 11 | 10 | 12 | 13 | 14 |
- 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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