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Surf Forecasts:
Asakawa surfForecast / Shikoku / Japan
48hr Weather and Surf, issued 2 am Saturday 09 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 normal for this time of year)How big are the waves at Asakawa today?
The current surf forecast for Asakawa at 6AM is: 0.8m 11s primary swell from a Southeast direction and 0.3m 6s secondary swell from a Southwest direction (forecast issued at 02:00am May 09). An open ocean swell of 0.3m 5s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (09 May) | 2.5ft (0.8m) | 11s |
| Afternoon (09 May) | 2.5ft (0.8m) | 11s |
| Evening (09 May) | 3ft (0.9m) | 10s |
Table - waves today at Asakawa. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 21°C on Mon morning, min 13°C on Sat night). Wind will be generally light. | ||||||||||||||||||||||||
Saturday 9 | Sunday 10 | Monday 11 | ||||||||||||||||||||||
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 |    |    |    | |||||||||||||||||||||
SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 10 | SE 10 | SE 10 | SE 10 | SE 11 | SE 10 | SE 10 | SE 10 | ESE 10 | SE 10 | SE 10 | SE 10 | SE 9 | SE 9 | SE 9 | ESE 9 | SE 10 | SE 10 | |
117 | 137 | 137 | 137 | 137 | 134 | 151 | 148 | 120 | 127 | 134 | 110 | 104 | 104 | 125 | 100 | 98 | 94 | 90 | 88 | 86 | 76 | 98 | 100 | |
Wind (km/h) | ||||||||||||||||||||||||
off | off | cross-off | cross-off | cross-off | glassy | cross | cross-off | cross-off | off | off | cross-off | cross | cross-on | glassy | cross-off | cross-off | cross-off | cross-off | on | on | on | on | glassy | |
High Tide | 11:27PM1.40m | 9:17AM1.37m | 00:41AM1.42m | 10:57AM1.30m | 1:38AM1.48m | 12:55PM1.30m | ||||||||||||||||||
Low Tide | 4:24AM1.18m | 4:56PM0.57m | 6:19AM1.13m | 6:13PM0.62m | 7:44AM1.00m | 7:26PM0.64m | ||||||||||||||||||
 | |  | | |  | |  | | | | | | | | | | | | | | | | | |
 | — | 5:07 | — | — | — | — | — | — | — | 5:05 | — | — | — | — | — | — | — | 5:05 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 6:51 | — | — | — | — | — | — | — | 6:51 | — | — | — | — | — | — | — | 6:52 | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 16 | 14 | 13 | 17 | 19 | 20 | 17 | 14 | 14 | 13 | 13 | 18 | 20 | 20 | 18 | 15 | 15 | 14 | 15 | 19 | 21 | 21 | 19 | 16 |
12 | 11 | 9 | 13 | 15 | 18 | 14 | 12 | 12 | 10 | 11 | 16 | 17 | 18 | 17 | 14 | 14 | 13 | 14 | 17 | 19 | 19 | 18 | 16 | |
Swell 1 Height (m) Direction Period (s) | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 10 | SE 10 | SE 10 | SE 10 | SE 11 | SE 10 | SE 10 | SE 10 | ESE 10 | SE 10 | SE 10 | SE 10 | SE 9 | SE 9 | SE 9 | ESE 9 | SE 10 | SE 10 |
 kJ | 117 | 137 | 137 | 137 | 137 | 134 | 151 | 148 | 120 | 127 | 134 | 110 | 104 | 104 | 125 | 100 | 98 | 94 | 90 | 88 | 86 | 76 | 98 | 100 |
Swell 2 Height (m) Direction Period (s) | SW 6 | SW 6 | SW 6 | SSW 6 | SW 6 | NE 4 | NE 4 | — | SW 5 | — | — | — | — | NE 3 | NNE 3 | — | — | — | — | — | S 12 | S 12 | S 12 | S 12 |
| kJ | 17 | 8 | 5 | 3 | 1 | 5 | 2 | — | 1 | — | — | — | — | 1 | 1 | — | — | — | — | — | 3 | 3 | 3 | 3 |
Swell 3 Height (m) Direction Period (s) | SSE 7 | NNE 5 | WNW 4 | W 4 | W 5 | SW 6 | SW 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 15 | 5 | 5 | 2 | 2 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | N 6 | N 5 | NNE 5 | NNE 5 | NE 3 | NNE 4 | — | — | WSW 2 | — | — | NE 3 | NE 3 | NNE 3 | — | — | — | — | — | — | — | SE 2 | ESE 3 | ESE 3 |
| kJ | 16 | 36 | 5 | 11 | 3 | 13 | — | — | 1 | — | — | 2 | 1 | 2 | — | — | — | — | — | — | — | 1 | 1 | 1 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 14 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 22 | 41 | 0 | 0 | 0 | 0 | 0 | 4 | 19 | 11 | 11 | 0 |
Best forecast wave conditions in Shikoku | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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