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Surf Forecasts:
Asakawa surfForecast / Shikoku / Japan
48hr Weather and Surf, issued 2 am Wednesday 10 Dec 2025 JSTForecast update in hr min s Forecast update imminent
Asakawa surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Asakawa sea temperature is
21.1° C
(Which is slightly warmer than usual)How big are the waves at Asakawa today?
The current surf forecast for Asakawa at 9AM is: 0.4m 9s primary swell from a East-southeast direction and 0.2m 10s secondary swell from a East-southeast direction (forecast issued at 02:00am December 10). An open ocean swell of 0.3m 2s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (10 Dec) | 1.5ft (0.4m) | 9s |
| Afternoon (10 Dec) | 1.5ft (0.4m) | 10s |
| Evening (10 Dec) | 1.5ft (0.5m) | 10s |
Table - waves today at Asakawa. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wednesday 10 | Thursday 11 | Friday 12 | ||||||||||||||||||||||
| 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 | 9 | 9 | 9 | 9 | 10 | 10 | 10 | 10 | 10 | 10 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 11 | 11 | 11 | 10 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 30 | 30 | 30 | 30 | 32 | 37 | 55 | 55 | 54 | 52 | 58 | 64 | 65 | 65 | 64 | 59 | 58 | 57 | 31 | 31 | 40 | 40 | 38 | 19 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | off | off | cross- off | glass | glass | glass | cross- off | glass | glass | cross | cross | cross- on | cross | cross- off | cross- off | off | off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off |
High Tide / height (m) | 10:23AM 1.57 | 9:15PM 1.49 | 11:14AM 1.53 | 10:28PM 1.35 | 12:04PM 1.51 | |||||||||||||||||||
Low Tide / height (m) | 3:20AM 0.28 | 3:54PM 1.01 | 4:09AM 0.46 | 5:08PM 0.97 | 5:03AM 0.64 | 6:30PM 0.89 | ||||||||||||||||||
Wednesday 10 | Thursday 11 | Friday 12 | ||||||||||||||||||||||
| Sunrise | - | - | - | 6:54 | - | - | - | - | - | - | - | 6:56 | - | - | - | - | - | - | - | 6:56 | - | - | - | - |
| Sunset | - | - | - | - | - | 4:53 | - | - | - | - | - | - | - | 4:53 | - | - | - | - | - | - | - | 4:53 | - | - |
 | |  |  |  | |  | | | | | |  | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 8 | 8 | 7 | 10 | 13 | 13 | 10 | 9 | 9 | 10 | 11 | 13 | 16 | 16 | 14 | 12 | 12 | 10 | 7 | 8 | 9 | 8 | 5 | 3 |
| Feels °C (?) | 4 | 4 | 3 | 7 | 11 | 10 | 8 | 7 | 7 | 8 | 9 | 11 | 12 | 11 | 12 | 10 | 10 | 6 | 1 | 1 | 1 | 1 | -2 | -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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