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Surf Forecasts:
Asakawa surfForecast / Shikoku / Japan
48hr Weather and Surf, issued 8 am Saturday 25 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
19.5° C
(Which is normal for this time of year)How big are the waves at Asakawa today?
The current surf forecast for Asakawa at 5PM is: 2.2m 10s primary swell from a East-southeast direction and 1.7m 10s secondary swell from a East-southeast direction, 0.3m 7s secondary swell from a South direction (forecast issued at 08:00am April 25). The wind direction is predicted to be cross-shore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (25 Apr) | 4ft (1.2m) | 8s |
| Afternoon (25 Apr) | 5.5ft (1.7m) | 10s |
| Evening (25 Apr) | 7ft (2.2m) | 10s |
Table - waves today at Asakawa. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 34mm), heaviest during Sun night. Warm (max 21°C on Mon morning, min 14°C on Sun night). Wind will be generally light. | ||||||||||||||||||||||||
Saturday 25 | Sunday 26 | Monday 27 | Tue 28 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
ESE 9 | ESE 8 | ESE 9 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | E 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 7 | ESE 7 | ESE 7 | E 7 | |
213 | 194 | 274 | 539 | 874 | 951 | 983 | 906 | 800 | 582 | 568 | 555 | 496 | 494 | 770 | 292 | 220 | 151 | 99 | 81 | 48 | 43 | 31 | 28 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross | cross | cross | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross | cross-off | cross-off | off | off | cross-off | cross-off | cross | glassy | cross-off | cross-off | glassy | |
High Tide | 12:14PM1.33m | 2:45AM1.53m | 2:08PM1.37m | 3:23AM1.59m | 3:20PM1.47m | |||||||||||||||||||
Low Tide | 7:33AM1.14m | 7:28PM0.55m | 8:49AM0.96m | 8:38PM0.57m | 9:33AM0.77m | 9:30PM0.59m | ||||||||||||||||||
 |  |  | |  |  |  | | | | | |  |  |  |  |  | | | | |  | | | |
 | 5:20 | — | — | — | — | — | — | 5:20 | — | — | — | — | — | — | — | 5:18 | — | — | — | — | — | — | — | 5:18 |
 | — | — | — | — | 6:39 | — | — | — | — | — | — | — | 6:40 | — | — | — | — | — | — | — | 6:40 | — | — | 6:42 |
1 | — | — | 1 | 1 | 1 | 1 | 1 | — | — | — | 1 | 8 | 8 | 12 | — | — | — | — | — | — | — | — | — | |
Temp °C | 13 | 17 | 18 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 17 | 17 | 15 | 15 | 15 | 15 | 14 | 18 | 21 | 21 | 19 | 16 | 16 | 16 |
11 | 15 | 16 | 16 | 16 | 14 | 14 | 14 | 14 | 13 | 15 | 15 | 13 | 13 | 13 | 14 | 13 | 17 | 19 | 20 | 20 | 16 | 16 | 16 | |
Swell 1 Height (m) Direction Period (s) | ESE 9 | ESE 8 | ESE 9 | ESE 10 | SSW 7 | — | — | S 9 | — | SW 7 | ESE 10 | SE 13 | SE 13 | SE 13 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 7 | ESE 7 | ESE 7 | SSW 6 |
 kJ | 213 | 194 | 274 | 539 | 4 | — | — | 1 | — | 2 | 20 | 7 | 7 | 7 | 403 | 292 | 220 | 151 | 99 | 81 | 48 | 43 | 31 | 19 |
Swell 2 Height (m) Direction Period (s) | S 7 | S 7 | S 7 | S 7 | — | — | — | — | — | — | — | SW 7 | SW 7 | S 7 | SE 13 | SE 13 | SE 13 | S 6 | S 7 | S 7 | S 6 | S 6 | SSW 6 | E 7 |
| kJ | 23 | 15 | 8 | 8 | — | — | — | — | — | — | — | 2 | 2 | 1 | 7 | 7 | 7 | 6 | 21 | 32 | 31 | 20 | 12 | 28 |
Swell 3 Height (m) Direction Period (s) | ESE 12 | SE 12 | SE 15 | SW 7 | — | — | — | — | — | — | — | — | — | — | S 7 | S 7 | S 7 | SE 13 | NNE 4 | SE 12 | ESE 12 | SE 12 | SE 12 | ESE 12 |
| kJ | 14 | 6 | 8 | 2 | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 1 | 7 | 1 | 6 | 14 | 6 | 6 | 14 |
Wind waves Height (m) Direction Period (s) | NE 4 | NNE 4 | NE 4 | NNE 3 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | E 8 | NE 4 | NNE 4 | NE 4 | N 4 | — | — | SSW 2 | SW 3 | SW 4 |
| kJ | 7 | 8 | 6 | 1 | 874 | 951 | 983 | 906 | 800 | 582 | 568 | 555 | 496 | 494 | 770 | 21 | 5 | 3 | 6 | — | — | 1 | 2 | 10 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 22 | 245 | 245 | 57 | 57 | 57 | 57 | 522 | 385 | 64 | 43 | 57 | 6 | 0 | 0 | 0 | 0 | 245 | 0 | 0 | 6 | 0 |
Best forecast wave conditions in Shikoku | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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