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Asakawa surfForecast / Shikoku / Japan
48hr Weather and Surf, issued 8 pm Thursday 23 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
19.3° C
(Which is normal for this time of year)How big are the waves at Asakawa today?
The current surf forecast for Asakawa at 12AM is: 1.2m 8s primary swell from a South direction and 0.4m 8s secondary swell from a East-southeast direction (forecast issued at 08:00pm April 23). An open ocean swell of 0.9m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (24 Apr) | 3ft (0.9m) | 8s |
| Afternoon (24 Apr) | 2.5ft (0.7m) | 8s |
| Evening (24 Apr) | 1.5ft (0.5m) | 9s |
Table - waves today at Asakawa. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 17mm), heaviest on Sun afternoon. Very mild (max 18°C on Sat morning, min 12°C on Fri night). Wind will be generally light. | ||||||||||||||||||||||||
Thu 23 | Friday 24 | Saturday 25 | Sunday 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 |   |    |    |    | ||||||||||||||||||||
SSW 8 | S 8 | S 8 | S 8 | S 8 | SSW 8 | S 8 | S 8 | E 9 | E 9 | E 9 | ESE 9 | ESE 8 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 10 | ESE 10 | ESE 8 | ESE 8 | ESE 8 | |
238 | 217 | 186 | 157 | 131 | 104 | 78 | 57 | 44 | 42 | 41 | 59 | 73 | 106 | 172 | 203 | 360 | 705 | 672 | 701 | 701 | 422 | 574 | 623 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-on | cross-on | cross | cross | cross | cross | cross | cross | cross | |
High Tide | 00:19AM1.44m | 10:02AM1.42m | 1:50AM1.47m | 12:14PM1.33m | 2:45AM1.53m | 2:08PM1.37m | ||||||||||||||||||
Low Tide | 4:29PM0.37m | 5:11AM1.22m | 5:57PM0.49m | 7:33AM1.14m | 7:28PM0.55m | 8:49AM0.96m | ||||||||||||||||||
 |  | | |  | | | | | | | | |  | | | | |  | |  | | | | |
 | — | — | — | 5:22 | — | — | — | — | — | — | — | 5:20 | — | — | — | — | — | — | — | 5:20 | — | — | — | — |
 | 6:37 | — | — | — | — | — | — | — | 6:38 | — | — | — | — | — | — | — | 6:39 | — | — | — | — | — | — | 6:40 |
7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 | 2 | 1 | — | 5 | |
Temp °C | 15 | 15 | 15 | 15 | 14 | 14 | 15 | 13 | 15 | 13 | 13 | 12 | 12 | 16 | 18 | 17 | 17 | 16 | 16 | 15 | 15 | 15 | 16 | 14 |
12 | 11 | 12 | 12 | 10 | 10 | 11 | 9 | 11 | 8 | 8 | 7 | 7 | 12 | 15 | 15 | 16 | 14 | 14 | 13 | 13 | 13 | 14 | 13 | |
Swell 1 Height (m) Direction Period (s) | SSW 8 | S 8 | S 8 | S 8 | S 8 | SSW 8 | S 8 | S 8 | SSE 7 | S 7 | E 9 | ESE 9 | ESE 8 | ESE 9 | ESE 9 | ESE 9 | S 6 | SE 15 | — | — | — | SE 10 | SE 13 | SE 13 |
 kJ | 238 | 217 | 186 | 157 | 131 | 104 | 78 | 57 | 29 | 27 | 41 | 59 | 73 | 106 | 172 | 203 | 3 | 8 | — | — | — | 82 | 7 | 7 |
Swell 2 Height (m) Direction Period (s) | ESE 6 | SE 13 | ESE 8 | SE 12 | SE 12 | E 9 | E 10 | ESE 9 | E 9 | E 9 | S 7 | SSE 7 | S 7 | S 7 | S 7 | S 6 | SE 15 | — | — | — | — | — | — | — |
| kJ | 58 | 42 | 21 | 39 | 38 | 27 | 28 | 29 | 44 | 42 | 26 | 16 | 15 | 15 | 8 | 7 | 8 | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | SE 13 | E 6 | SE 13 | ESE 7 | E 8 | SE 12 | SE 12 | SE 12 | SSW 8 | SW 8 | SE 12 | SE 12 | SE 12 | ESE 12 | SE 12 | SE 15 | SE 15 | — | — | — | — | — | — | — |
| kJ | 60 | 6 | 42 | 11 | 11 | 23 | 23 | 22 | 23 | 15 | 23 | 22 | 22 | 14 | 6 | 8 | 8 | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NNE 4 | NNE 5 | NNE 4 | NNE 6 | NNE 5 | NE 5 | NNE 5 | NNE 5 | NNE 5 | NNE 4 | NNE 5 | NNE 5 | NNE 5 | NNE 4 | NE 4 | NE 4 | ESE 9 | ESE 9 | ESE 9 | ESE 10 | ESE 10 | ESE 8 | ESE 8 | ESE 8 |
| kJ | 16 | 42 | 28 | 49 | 58 | 62 | 56 | 38 | 19 | 42 | 48 | 42 | 29 | 25 | 14 | 2 | 360 | 705 | 672 | 701 | 701 | 422 | 574 | 623 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 43 | 43 | 43 | 14 | 43 | 43 | 43 | 1 | 14 | 14 | 14 | 0 | 22 | 0 | 22 | 41 | 245 | 57 | 57 | 57 | 43 | 19 | 43 | 43 |
Best forecast wave conditions in Shikoku | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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