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Surf Forecasts:
Asakawa surfForecast / Shikoku / Japan
48hr Weather and Surf, issued 2 am 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
20.0° C
(Which is slightly cooler than normal)How big are the waves at Asakawa today?
The current surf forecast for Asakawa at 8AM is: 1.2m 9s primary swell from a Southeast direction and 0.1m 11s secondary swell from a South direction (forecast issued at 02:00am May 12). The wind direction is predicted to be glassy.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 May) | 4.5ft (1.3m) | 9s |
| Afternoon (12 May) | 5ft (1.5m) | 9s |
| Evening (12 May) | 4.5ft (1.4m) | 9s |
Table - waves today at Asakawa. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 2mm), mostly falling on Wed afternoon. Warm (max 22°C on Wed morning, min 16°C on Wed night). Wind will be generally light. | ||||||||||||||||||||||||
Tuesday 12 | Wednesday 13 | Thursday 14 | ||||||||||||||||||||||
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 | 6 PM | 9 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
ESE 10 | ESE 10 | ESE 9 | ESE 9 | SE 9 | ESE 9 | 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 10 | |
122 | 107 | 151 | 276 | 353 | 395 | 353 | 327 | 327 | 261 | 255 | 255 | 203 | 203 | 203 | 172 | 161 | 168 | 179 | 175 | 183 | 169 | 169 | 137 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | glassy | glassy | on | on | on | glassy | glassy | glassy | glassy | cross-on | on | on | cross-on | cross-off | cross-off | off | off | cross-off | cross | glassy | glassy | glassy | |
High Tide | 2:20AM1.56m | 2:21PM1.40m | 2:55AM1.63m | 3:27PM1.54m | 3:29AM1.70m | 4:22PM1.67m | ||||||||||||||||||
Low Tide | 8:36AM0.81m | 8:27PM0.64m | 9:18AM0.60m | 9:20PM0.66m | 9:58AM0.38m | |||||||||||||||||||
 |  |  | |  | | | |  | |  | | |  | | | | | | | | | | | |
 | — | 5:03 | — | — | — | — | — | — | — | 5:03 | — | — | — | — | — | — | — | 5:03 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 6:52 | — | — | — | — | — | — | — | 6:53 | — | — | — | — | — | — | — | 6:53 | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | |
Temp °C | 17 | 16 | 17 | 19 | 21 | 21 | 20 | 18 | 17 | 17 | 17 | 20 | 22 | 21 | 20 | 18 | 17 | 16 | 17 | 22 | 22 | 20 | 21 | 18 |
16 | 15 | 17 | 20 | 19 | 20 | 20 | 19 | 18 | 17 | 17 | 20 | 21 | 21 | 21 | 18 | 17 | 15 | 16 | 21 | 21 | 20 | 22 | 19 | |
Swell 1 Height (m) Direction Period (s) | ESE 10 | ESE 10 | ESE 9 | ESE 9 | SE 9 | ESE 9 | 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 10 |
 kJ | 122 | 107 | 151 | 276 | 353 | 395 | 353 | 327 | 327 | 261 | 255 | 255 | 203 | 203 | 203 | 172 | 161 | 168 | 179 | 175 | 183 | 169 | 169 | 137 |
Swell 2 Height (m) Direction Period (s) | SE 3 | SE 3 | S 11 | — | — | S 10 | S 10 | — | — | S 11 | S 8 | S 10 | S 10 | S 8 | S 8 | S 8 | S 8 | S 7 | S 7 | S 8 | S 7 | S 7 | S 7 | S 7 |
| kJ | 2 | 2 | 2 | — | — | 2 | 2 | — | — | 2 | 5 | 2 | 2 | 1 | 1 | 4 | 1 | 1 | 4 | 4 | 4 | 4 | 4 | 4 |
Swell 3 Height (m) Direction Period (s) | S 11 | SSE 8 | — | — | — | — | — | — | — | — | — | S 10 | — | S 10 | S 10 | S 9 | S 9 | S 9 | — | — | — | S 7 | NNE 3 | — |
| kJ | 2 | 7 | — | — | — | — | — | — | — | — | — | 2 | — | 2 | 2 | 2 | 2 | 1 | — | — | — | 4 | 1 | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 2 | WSW 2 | — | — | NE 3 | NE 3 | ENE 3 | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | — | 5 | 4 | 1 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 385 | 11 | 4 | 0 | 0 | 0 | 0 | 43 | 385 | 11 | 11 | 0 | 0 | 0 | 0 | 0 | 385 | 0 | 0 | 0 |
Best forecast wave conditions in Shikoku | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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