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Surf Forecasts:
Asakawa surfForecast / Shikoku / Japan
48hr Weather and Surf, issued 8 am Friday 08 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
20.3° C
(Which is normal for this time of year)How big are the waves at Asakawa today?
The current surf forecast for Asakawa at 4PM is: 0.8m 11s primary swell from a East-southeast direction and 0.6m 5s secondary swell from a South-southwest direction, 1.5m 5s secondary swell from a Southwest direction (forecast issued at 08:00am May 08). The wind direction is predicted to be cross-offshore and the swell rating is 2.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (08 May) | 3.5ft (1.0m) | 10s |
| Afternoon (08 May) | 2.5ft (0.8m) | 11s |
| Evening (08 May) | 2.5ft (0.8m) | 11s |
Table - waves today at Asakawa. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastSome drizzle, heaviest during Fri afternoon. Warm (max 23°C on Fri morning, min 13°C on Fri night). Wind will be generally light. | ||||||||||||||||||||||||
Friday 8 | Saturday 9 | Sunday 10 | Mon 11 | |||||||||||||||||||||
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 | 12 AM | 3 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SE 10 | SE 10 | SE 10 | ESE 11 | ESE 11 | ESE 11 | 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 | SE 10 | SE 10 | SE 10 | SE 10 | |
177 | 208 | 244 | 143 | 143 | 146 | 117 | 137 | 166 | 137 | 137 | 163 | 151 | 148 | 145 | 151 | 134 | 129 | 104 | 104 | 102 | 100 | 98 | 96 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | glassy | on | cross | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | glassy | cross-on | cross-off | off | off | off | cross-off | cross | cross-on | glassy | glassy | cross-off | cross-off | |
High Tide | 8:22AM1.47m | 11:27PM1.40m | 9:17AM1.37m | 00:41AM1.42m | 10:57AM1.30m | 1:38AM1.48m | ||||||||||||||||||
Low Tide | 3:07AM1.14m | 3:51PM0.49m | 4:24AM1.18m | 4:56PM0.57m | 6:19AM1.13m | 6:13PM0.62m | ||||||||||||||||||
 | |  |  | |  | | |  | | | | |  | | | | | | | | | | | |
 | 5:07 | — | — | — | — | — | — | 5:07 | — | — | — | — | — | — | — | 5:05 | — | — | — | — | — | — | — | 5:05 |
 | — | — | — | — | 6:50 | — | — | — | — | — | — | — | 6:51 | — | — | — | — | — | — | — | 6:51 | — | — | 6:52 |
— | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 20 | 21 | 23 | 23 | 20 | 14 | 14 | 14 | 13 | 17 | 19 | 19 | 17 | 15 | 14 | 13 | 13 | 18 | 20 | 20 | 18 | 15 | 15 | 15 |
21 | 23 | 24 | 23 | 19 | 10 | 10 | 11 | 10 | 13 | 16 | 17 | 15 | 13 | 12 | 11 | 11 | 16 | 16 | 17 | 17 | 14 | 14 | 13 | |
Swell 1 Height (m) Direction Period (s) | SE 10 | SE 10 | SE 10 | ESE 11 | SW 6 | ESE 11 | 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 | SE 10 | SE 10 | SE 10 | SE 10 |
 kJ | 177 | 208 | 244 | 143 | 52 | 146 | 117 | 137 | 166 | 137 | 137 | 163 | 151 | 148 | 145 | 151 | 134 | 129 | 104 | 104 | 102 | 100 | 98 | 96 |
Swell 2 Height (m) Direction Period (s) | S 6 | S 6 | S 6 | SSW 5 | ESE 11 | SW 6 | SW 6 | SW 6 | WSW 6 | SW 6 | SW 6 | NE 3 | — | — | — | WSW 3 | — | — | — | ENE 3 | NNE 3 | — | — | — |
| kJ | 3 | 1 | 30 | 19 | 143 | 29 | 16 | 5 | 6 | 1 | 1 | 2 | — | — | — | 1 | — | — | — | 1 | 1 | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | SSE 7 | SSE 6 | SSE 6 | SSE 6 | NNE 4 | SW 6 | SW 6 | — | SW 6 | SW 6 | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | 25 | 24 | 13 | 14 | 1 | 8 | 5 | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | S 6 | — | SW 5 | SW 5 | NNW 4 | N 2 | N 5 | W 6 | NNW 4 | NNE 5 | NE 3 | NNE 4 | — | — | WSW 2 | — | — | NE 3 | NE 3 | NNE 3 | — | — | — | — |
| kJ | 19 | — | 29 | 119 | 1 | 1 | 40 | 30 | 13 | 10 | 1 | 4 | — | — | 1 | — | — | 2 | 2 | 2 | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 282 | 22 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Shikoku | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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