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:
Hebara surfForecast / Chiba / Japan
48hr Weather and Surf, issued 2 pm Sunday 14 Dec 2025 JSTForecast update in hr min s Forecast update imminent
Hebara surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Hebara sea temperature is
20.0° C
(Which is slightly warmer than usual)How big are the waves at Hebara today?
The current surf forecast for Hebara at 7PM is: 4.5m 11s primary swell from a South direction and 3.5m 11s secondary swell from a South-southeast direction (forecast issued at 02:00pm December 14). An open ocean swell of 0.4m 11s is not directed at the surf break. The wind direction is predicted to be cross-offshore and the swell rating is 11.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (14 Dec) | - | - |
| Afternoon (14 Dec) | 11ft (3.5m) | 11s |
| Evening (14 Dec) | 11ft (3.5m) | 11s |
Table - waves today at Hebara. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Sunday 14 | Monday 15 | Tuesday 16 | Wednesday 17 | |||||||||||||||||||||
| 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) (?) | 10 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 8 | 13 | 13 | 12 | 12 | 12 | 13 | 13 | 12 | 12 | 12 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 1629 | 2669 | 4497 | 2335 | 2546 | 448 | 256 | 157 | 94 | 84 | 86 | 65 | 64 | 82 | 62 | 59 | 59 | 61 | 55 | 55 | 50 | 47 | 71 | 41 |
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 | off | off | off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | glass | glass | cross- off | off | off | cross- off | cross- off |
High Tide / height (m) | 11:47AM 1.25 | 2:01AM 1.02 | 12:24PM 1.28 | 3:08AM 1.10 | 1:02PM 1.30 | 3:55AM 1.18 | ||||||||||||||||||
Low Tide / height (m) | 7:12PM 0.54 | 6:14AM 0.89 | 7:57PM 0.41 | 7:22AM 0.95 | 8:35PM 0.30 | 8:18AM 0.98 | ||||||||||||||||||
Sunday 14 | Monday 15 | Tuesday 16 | Wednesday 17 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | 6:37 | - | - | - | - | - | - | - | 6:39 | - | - | - | - | - | - | - | 6:39 |
| Sunset | - | 4:27 | - | - | - | - | - | - | - | 4:27 | - | - | - | - | - | - | - | 4:27 | - | - | - | - | - | - |
 |  |  |  | | | |  | | | | | |  | | | |  | | | | | | | |
Rain (mm) | 16 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 10 | 11 | 11 | 10 | 11 | 10 | 9 | 10 | 12 | 12 | 11 | 10 | 9 | 9 | 9 | 9 | 10 | 11 | 10 | 11 | 10 | 9 | 9 | 10 |
| Feels °C (?) | 5 | 7 | 4 | 5 | 3 | 4 | 2 | 2 | 6 | 7 | 6 | 4 | 4 | 4 | 4 | 4 | 5 | 9 | 8 | 9 | 7 | 6 | 6 | 6 |
- 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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