- Forecast
- Maps
- Live
- Weather State
- Spot Information
Surf Forecasts:
Asakawa surfForecast / Shikoku / Japan
48hr Weather and Surf, issued 8 pm Tuesday 12 May 2026 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
19.9° C
(Which is slightly cooler than normal)How big are the waves at Asakawa today?
The current surf forecast for Asakawa at 5AM is: 1.3m 9s primary swell from a East-southeast direction and 0.1m 11s secondary swell from a South direction (forecast issued at 08:00pm May 12). The wind direction is predicted to be cross-offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 May) | 4ft (1.2m) | 9s |
| Afternoon (13 May) | 3.5ft (1.1m) | 9s |
| Evening (13 May) | 3.5ft (1.0m) | 9s |
Table - waves today at Asakawa. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 16mm), heaviest on Wed afternoon. Warm (max 22°C on Thu morning, min 16°C on Wed night). Wind will be generally light. | ||||||||||||||||||||||||
Tue 12 | Wednesday 13 | Thursday 14 | Friday 15 | |||||||||||||||||||||
6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
SE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 9 | ESE 10 | ESE 10 | E 9 | ESE 9 | ESE 9 | ESE 6 | |
353 | 327 | 327 | 261 | 255 | 221 | 203 | 203 | 207 | 176 | 161 | 161 | 172 | 179 | 137 | 140 | 137 | 126 | 96 | 67 | 60 | 100 | 69 | 58 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | glassy | glassy | glassy | off | glassy | on | glassy | glassy | cross-off | off | off | off | cross-off | cross | glassy | glassy | off | off | cross-off | off | cross | cross-on | on | |
High Tide | 2:55AM1.63m | 3:27PM1.54m | 3:29AM1.70m | 4:22PM1.67m | 4:02AM1.77m | |||||||||||||||||||
Low Tide | 8:27PM0.64m | 9:18AM0.60m | 9:20PM0.66m | 9:58AM0.38m | 10:08PM0.69m | 10:37AM0.17m | ||||||||||||||||||
 |  |  | |  | | | | | |  | |  | |  | | |  | | | | | | | |
 | — | — | — | 5:03 | — | — | — | — | — | — | — | 5:03 | — | — | — | — | — | — | — | 5:01 | — | — | — | — |
 | 6:52 | — | — | — | — | — | — | — | 6:53 | — | — | — | — | — | — | — | 6:53 | — | — | — | — | — | — | 6:54 |
1 | 1 | 1 | 1 | — | — | 1 | 4 | 3 | 1 | — | — | — | — | 1 | 2 | 1 | — | — | — | — | — | — | — | |
Temp °C | 20 | 18 | 17 | 17 | 17 | 20 | 21 | 21 | 19 | 18 | 17 | 16 | 16 | 22 | 22 | 22 | 21 | 19 | 17 | 16 | 16 | 20 | 22 | 22 |
21 | 19 | 18 | 17 | 17 | 21 | 22 | 22 | 20 | 18 | 17 | 15 | 15 | 22 | 21 | 23 | 22 | 19 | 16 | 14 | 15 | 19 | 22 | 21 | |
Swell 1 Height (m) Direction Period (s) | SE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 9 | ESE 10 | E 9 | E 9 | ESE 9 | ESE 9 | ESE 6 |
 kJ | 353 | 327 | 327 | 261 | 255 | 221 | 203 | 203 | 207 | 176 | 161 | 161 | 172 | 179 | 137 | 140 | 137 | 126 | 96 | 42 | 60 | 100 | 69 | 58 |
Swell 2 Height (m) Direction Period (s) | S 10 | — | — | S 11 | S 8 | S 10 | S 10 | S 10 | S 8 | S 8 | S 7 | S 7 | S 8 | S 7 | S 7 | ENE 3 | S 7 | SE 10 | ESE 10 | ESE 10 | SE 10 | ESE 4 | ESE 6 | ESE 10 |
| kJ | 2 | — | — | 2 | 5 | 2 | 2 | 2 | 1 | 4 | 1 | 1 | 4 | 4 | 4 | 1 | 4 | 17 | 67 | 67 | 23 | 4 | 18 | 52 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | S 10 | — | S 10 | S 10 | S 9 | S 9 | S 9 | — | — | — | S 7 | S 7 | S 7 | S 7 | ESE 4 | ESE 4 | SE 12 | SE 11 | SE 11 |
| kJ | — | — | — | — | — | 2 | — | 2 | 2 | 2 | 1 | 1 | — | — | — | 4 | 4 | 1 | 1 | 6 | 3 | 21 | 20 | 20 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | WSW 2 | WNW 2 | N 3 | NNE 3 | NE 3 | NE 4 | — | — | ESE 4 | E 4 | NNE 2 | NNE 3 | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 2 | 1 | 2 | 3 | — | — | 10 | 10 | 1 | 1 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 11 | 0 | 0 | 0 | 0 | 0 | 11 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 30 | 0 | 0 | 0 | 0 | 0 | 0 | 22 | 41 | 19 |
Best forecast wave conditions in Shikoku | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Asakawa surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Nearest