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Surf Forecasts:
Asakawa surfForecast / Shikoku / Japan
48hr Weather and Surf, issued 8 pm Saturday 23 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
21.4° C
(Which is normal for this time of year)How big are the waves at Asakawa today?
The current surf forecast for Asakawa at 11PM is: 2.2m 7s primary swell from a East-southeast direction (forecast issued at 08:00pm May 23). The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (23 May) | - | - |
| Afternoon (23 May) | - | - |
| Evening (23 May) | 7ft (2.1m) | 7s |
Table - waves today at Asakawa. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 13mm), heaviest on Sat night. Warm (max 25°C on Mon morning, min 20°C on Sat night). Wind will be generally light. | ||||||||||||||||||||||||
Sat 23 | Sunday 24 | Monday 25 | Tuesday 26 | |||||||||||||||||||||
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 |   |    |    |    | ||||||||||||||||||||
ESE 8 | ESE 7 | ESE 7 | ESE 8 | ESE 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | ESE 8 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 9 | ESE 9 | ESE 8 | |
746 | 425 | 522 | 640 | 639 | 1055 | 800 | 692 | 675 | 617 | 512 | 239 | 208 | 208 | 172 | 131 | 125 | 125 | 122 | 99 | 108 | 222 | 232 | 134 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | glassy | glassy | glassy | glassy | glassy | glassy | glassy | cross-on | on | cross-on | cross-on | cross-on | glassy | glassy | on | on | on | |
High Tide | 00:38AM1.52m | 12:01PM1.33m | 1:31AM1.54m | 1:41PM1.33m | 2:14AM1.56m | 2:59PM1.39m | ||||||||||||||||||
Low Tide | 5:24PM0.51m | 6:42AM0.98m | 6:35PM0.64m | 7:56AM0.83m | 7:42PM0.74m | 8:50AM0.67m | ||||||||||||||||||
 |  | | |  | |  | | |  |  | |  | | | | | | | | | | |  | |
 | — | — | — | 4:56 | — | — | — | — | — | — | — | 4:56 | — | — | — | — | — | — | — | 4:54 | — | — | — | — |
 | 7:00 | — | — | — | — | — | — | — | 7:00 | — | — | — | — | — | — | — | 7:01 | — | — | — | — | — | — | 7:02 |
2 | 3 | 3 | 4 | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 21 | 21 | 21 | 21 | 20 | 20 | 22 | 23 | 22 | 21 | 20 | 20 | 20 | 23 | 25 | 23 | 22 | 21 | 20 | 20 | 20 | 22 | 23 | 23 |
21 | 22 | 21 | 21 | 20 | 20 | 23 | 25 | 24 | 24 | 23 | 22 | 22 | 25 | 26 | 24 | 24 | 23 | 22 | 22 | 23 | 23 | 23 | 23 | |
Swell 1 Height (m) Direction Period (s) | — | — | — | — | — | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 |
 kJ | — | — | — | — | — | 569 | 465 | 370 | 353 | 313 | 277 | 239 | 208 | 208 | 172 | 131 | 125 | 125 | 122 | 99 | 108 | 105 | 108 | 134 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | S 7 | SW 7 | SSW 8 | SSW 8 | S 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | S 6 | E 16 | SE 15 | SE 15 | SE 15 |
| kJ | — | — | — | — | — | — | — | 1 | 2 | 6 | 21 | 9 | 9 | 18 | 16 | 18 | 16 | 16 | 9 | 7 | 5 | 9 | 9 | 9 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | SSW 7 | — | SSW 8 | SSW 7 | SSW 7 | SW 7 | ESE 11 | ESE 11 | ESE 11 | E 16 | E 16 | S 12 | — | S 12 | S 12 |
| kJ | — | — | — | — | — | — | — | — | — | 4 | — | 13 | 5 | 5 | 2 | 12 | 12 | 12 | 5 | 5 | 3 | — | 3 | 3 |
Wind waves Height (m) Direction Period (s) | ESE 8 | ESE 7 | ESE 7 | ESE 8 | ESE 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | — | — | — | — | — | — | — | — | — | — | ESE 9 | ESE 9 | SE 5 |
| kJ | 746 | 425 | 522 | 640 | 639 | 1055 | 800 | 692 | 675 | 617 | 512 | — | — | — | — | — | — | — | — | — | — | 222 | 232 | 42 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 385 | 678 | 43 | 43 | 43 | 43 | 245 | 245 | 19 | 0 | 0 | 0 | 0 | 0 | 0 | 282 | 11 | 11 | 11 | 6 | 0 | 0 | 0 | 43 |
Best forecast wave conditions in Shikoku | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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