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Surf Forecasts:
Asakawa surfForecast / Shikoku / Japan
48hr Weather and Surf, issued 2 am Tuesday 28 Apr 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
20.2° C
(Which is slightly warmer than usual)How big are the waves at Asakawa today?
The current surf forecast for Asakawa at 3PM is: 0.2m 12s primary swell from a East-southeast direction and 0.2m 8s secondary swell from a East-southeast direction, 0.7m 3s secondary swell from a South-southwest direction (forecast issued at 02:00am April 28). The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (28 Apr) | 1ft (0.3m) | 7s |
| Afternoon (28 Apr) | 0.5ft (0.2m) | 12s |
| Evening (28 Apr) | 3ft (0.9m) | 5s |
Table - waves today at Asakawa. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 40mm), heaviest during Thu night. Warm (max 23°C on Tue morning, min 13°C on Wed night). Wind will be generally light. | ||||||||||||||||||||||||
Tuesday 28 | Wednesday 29 | Thursday 30 | ||||||||||||||||||||||
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 7 | ESE 7 | ESE 12 | ESE 7 | ESE 12 | ESE 12 | SSW 4 | SSW 5 | S 5 | S 6 | S 6 | SSW 6 | SSW 6 | SSW 6 | SW 6 | SSW 5 | SE 11 | SE 11 | SE 11 | SE 11 | SE 9 | SE 9 | SE 5 | SE 6 | |
20 | 20 | 14 | 11 | 14 | 14 | 19 | 36 | 28 | 23 | 23 | 18 | 20 | 13 | 5 | 3 | 5 | 5 | 5 | 18 | 12 | 12 | 67 | 128 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | cross-on | cross-on | cross-on | cross | cross-off | off | glassy | glassy | glassy | cross-on | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | |
High Tide | 3:52AM1.65m | 4:12PM1.57m | 4:18AM1.69m | 4:56PM1.65m | 4:43AM1.73m | 5:34PM1.71m | ||||||||||||||||||
Low Tide | 9:30PM0.59m | 10:09AM0.59m | 10:11PM0.62m | 10:40AM0.44m | 10:46PM0.66m | 11:09AM0.31m | ||||||||||||||||||
 |  |  |  | |  | | | | | | | | | |  | | |  | | | | |  | |
 | — | 5:18 | — | — | — | — | — | — | — | 5:16 | — | — | — | — | — | — | — | 5:16 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 6:42 | — | — | — | — | — | — | — | 6:43 | — | — | — | — | — | — | — | 6:44 | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 3 | 4 | 4 | 4 | 6 | |
Temp °C | 17 | 17 | 17 | 21 | 23 | 23 | 21 | 18 | 18 | 17 | 17 | 20 | 20 | 19 | 17 | 16 | 15 | 14 | 13 | 13 | 13 | 14 | 15 | 15 |
17 | 17 | 17 | 20 | 20 | 21 | 22 | 18 | 18 | 17 | 18 | 21 | 19 | 18 | 16 | 15 | 13 | 12 | 11 | 12 | 12 | 14 | 15 | 14 | |
Swell 1 Height (m) Direction Period (s) | ESE 7 | ESE 7 | SW 5 | SW 5 | ESE 8 | ESE 8 | ESE 8 | SSW 5 | S 5 | S 6 | S 6 | SSW 6 | SSW 6 | SSW 6 | SW 6 | SSW 5 | SSW 5 | SE 11 | SE 11 | SE 11 | SE 9 | SE 5 | SE 9 | S 13 |
 kJ | 20 | 20 | 7 | 7 | 11 | 6 | 6 | 23 | 28 | 23 | 23 | 18 | 20 | 13 | 5 | 3 | 2 | 5 | 5 | 18 | 12 | 6 | 12 | 3 |
Swell 2 Height (m) Direction Period (s) | S 5 | S 5 | ESE 7 | ESE 7 | ESE 12 | ESE 12 | ESE 12 | ESE 12 | ESE 12 | ESE 11 | E 8 | E 7 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | E 9 | SE 9 | E 9 | — |
| kJ | 5 | 5 | 10 | 11 | 14 | 14 | 14 | 14 | 13 | 13 | 5 | 4 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 12 | 2 | — |
Swell 3 Height (m) Direction Period (s) | SSW 6 | SW 6 | ESE 12 | SSE 5 | SSE 6 | SSE 6 | SE 6 | E 8 | E 8 | E 8 | SE 11 | SE 11 | SE 11 | SE 11 | S 5 | S 5 | SE 11 | SW 5 | E 10 | E 10 | SE 11 | E 9 | S 13 | — |
| kJ | 3 | 5 | 14 | 3 | 3 | 3 | 1 | 5 | 4 | 4 | 5 | 5 | 5 | 5 | 2 | 2 | 5 | 1 | 2 | 7 | 5 | 7 | 4 | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | SSW 5 | SSW 3 | SSW 4 | SSW 5 | — | — | NE 3 | NE 4 | NE 4 | NE 4 | NE 4 | NE 4 | NNE 4 | NE 4 | NE 4 | NE 3 | NE 3 | NE 3 | SE 5 | SE 6 |
| kJ | — | — | — | — | 10 | 10 | 19 | 36 | — | — | 2 | 4 | 5 | 11 | 12 | 10 | 9 | 16 | 9 | 6 | 2 | 1 | 67 | 128 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 43 | 64 | 30 | 293 | 339 | 2365 | 289 | 0 | 6 | 6 | 30 | 503 | 475 | 475 | 475 | 1037 | 357 | 357 | 1037 | 955 | 511 | 1040 | 22 | 64 |
Best forecast wave conditions in Shikoku | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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