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:
Aoshima Harbour surfForecast / Kyu Shu / Japan
48hr Weather and Surf, issued 2 am Monday 15 Dec 2025 JSTForecast update in hr min s Forecast update imminent
Aoshima Harbour surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Aoshima Harbour sea temperature is
21.2° C
(Which is slightly cooler than normal)How big are the waves at Aoshima Harbour today?
The current surf forecast for Aoshima Harbour at 9AM is: 0.5m 11s primary swell from a East direction and 0.2m 7s secondary swell from a South-southeast direction (forecast issued at 02:00am December 15). An open ocean swell of 0.4m 7s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (15 Dec) | 1.5ft (0.5m) | 11s |
| Afternoon (15 Dec) | 2.5ft (0.7m) | 10s |
| Evening (15 Dec) | 2ft (0.6m) | 10s |
Table - waves today at Aoshima Harbour. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Monday 15 | Tuesday 16 | Wednesday 17 | ||||||||||||||||||||||
| 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) (?) | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 8 | 9 | 9 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 39 | 39 | 39 | 59 | 75 | 94 | 98 | 74 | 74 | 71 | 69 | 49 | 49 | 50 | 45 | 42 | 42 | 41 | 28 | 28 | 28 | 28 | 30 | 30 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross- off | glass | cross- on | cross | glass | cross- off | cross- off | cross- off | cross- off | glass | on | glass | cross- off | cross- off | cross- off | cross- off | glass | cross | cross- off | off | cross- off |
High Tide / height (m) | 2:39AM 1.49 | 2:15PM 1.73 | 3:48AM 1.59 | 2:58PM 1.77 | 4:45AM 1.70 | 3:40PM 1.82 | ||||||||||||||||||
Low Tide / height (m) | 8:09AM 0.89 | 9:09PM 0.40 | 9:11AM 0.95 | 9:55PM 0.22 | 10:05AM 0.99 | |||||||||||||||||||
Monday 15 | Tuesday 16 | Wednesday 17 | ||||||||||||||||||||||
| Sunrise | - | - | - | 7:05 | - | - | - | - | - | - | - | 7:05 | - | - | - | - | - | - | - | 7:07 | - | - | - | - |
| Sunset | - | - | - | - | - | 5:10 | - | - | - | - | - | - | - | 5:10 | - | - | - | - | - | - | - | 5:12 | - | - |
 | | |  | | | | | | | | | | | | | | | | |  | |  |  | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 |
| Temp. °C | 9 | 8 | 8 | 8 | 11 | 12 | 11 | 10 | 9 | 9 | 8 | 9 | 12 | 13 | 12 | 11 | 11 | 11 | 11 | 12 | 15 | 17 | 16 | 14 |
| Feels °C (?) | 4 | 2 | 3 | 4 | 8 | 8 | 8 | 7 | 6 | 6 | 5 | 6 | 9 | 10 | 11 | 8 | 8 | 8 | 9 | 10 | 13 | 14 | 13 | 13 |
- 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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