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:
Ohara surfForecast / Chiba / Japan
48hr Weather and Surf, issued 2 pm Saturday 13 Dec 2025 JSTForecast update in hr min s Forecast update imminent
Ohara surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Ohara sea temperature is
19.8° C
(Which is normal for this time of year)How big are the waves at Ohara today?
The current surf forecast for Ohara at 8PM is: 0.6m 12s primary swell from a East-southeast direction and 0.4m 10s secondary swell from a Northeast direction (forecast issued at 02:00pm December 13). An open ocean swell of 0.7m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Dec) | - | - |
| Afternoon (13 Dec) | 2ft (0.6m) | 12s |
| Evening (13 Dec) | 2ft (0.6m) | 11s |
Table - waves today at Ohara. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | |||||||||||||||||||||
| 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) (?) | 12 | 12 | 11 | 11 | 11 | 6 | 7 | 8 | 10 | 11 | 11 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 13 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 104 | 109 | 115 | 102 | 64 | 293 | 787 | 604 | 1755 | 2804 | 4668 | 2761 | 1710 | 416 | 286 | 173 | 123 | 120 | 83 | 83 | 68 | 65 | 62 | 58 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross | cross- off | off | cross- on | cross- on | on | cross- on | cross- on | cross- on | cross- on | cross | cross- on | cross- on | cross- on | cross- on | cross- on | on | on | on | on | on | on |
High Tide / height (m) | 11:03AM 1.23 | 12:06AM 0.96 | 11:41AM 1.25 | 1:50AM 1.02 | 12:18PM 1.28 | 2:58AM 1.11 | ||||||||||||||||||
Low Tide / height (m) | 6:04PM 0.67 | 4:53AM 0.79 | 7:02PM 0.54 | 6:02AM 0.89 | 7:48PM 0.41 | 7:11AM 0.96 | ||||||||||||||||||
Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | 6:37 | - | - | - | - | - | - | - | 6:37 | - | - | - | - | - | - | - | 6:39 |
| Sunset | - | 4:25 | - | - | - | - | - | - | - | 4:25 | - | - | - | - | - | - | - | 4:27 | - | - | - | - | - | - |
 | |  |  | | | |  | |  |  | |  | | |  | | | | | | | | | |
Rain (mm) | - | - | - | 1 | 5 | 2 | 2 | 5 | 3 | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 7 | 8 | 9 | 10 | 12 | 9 | 7 | 9 | 10 | 10 | 11 | 11 | 11 | 9 | 8 | 10 | 11 | 12 | 10 | 9 | 9 | 9 | 9 | 9 |
| Feels °C (?) | 3 | 3 | 5 | 6 | 8 | 4 | 4 | 7 | 5 | 6 | 7 | 9 | 7 | 5 | 1 | 3 | 4 | 6 | 3 | 4 | 4 | 4 | 4 | 4 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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