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Surf Forecasts:
Asakawa surfForecast / Shikoku / Japan
48hr Weather and Surf, issued 8 pm Saturday 30 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
22.7° C
(Which is slightly warmer than usual)How big are the waves at Asakawa today (31 May):
- Evening surf: Evening surf (31 May, local time) - 1.5ft (0.5m), 11s period with ESE swell.
The current surf forecast for Asakawa at 12AM is: 0.5m 11s primary swell from a East-southeast direction and 0.2m 5s secondary swell from a South direction (forecast issued at 08:00pm May 30). The wind direction is predicted to be cross-offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 May) | - | - |
| Afternoon (31 May) | - | - |
| Evening (31 May) | 1.5ft (0.5m) | 11s |
Table - waves today at Asakawa. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 47mm), heaviest during Tue afternoon. Warm (max 27°C on Sun afternoon, min 18°C on Sun night). Wind will be generally light. | ||||||||||||||||||||||||
Sat 30 | Sunday 31 | Monday 1 | Tuesday 2 | |||||||||||||||||||||
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 12 | ESE 11 | ESE 11 | ESE 11 | S 14 | S 13 | S 13 | S 12 | S 12 | S 12 | S 11 | S 14 | S 14 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 14 | S 14 | S 14 | SSW 14 | SSW 14 | |
52 | 71 | 71 | 84 | 140 | 284 | 319 | 423 | 480 | 404 | 305 | 264 | 474 | 875 | 915 | 991 | 991 | 1127 | 775 | 1645 | 1622 | 1705 | 1226 | 1226 | |
Wind (km/h) | ||||||||||||||||||||||||
glassy | cross | cross-off | glassy | glassy | glassy | cross-on | glassy | cross-on | cross | cross-on | cross | glassy | on | on | on | on | cross-on | on | glassy | glassy | cross-on | cross-on | cross-on | |
High Tide | 6:02PM1.64m | 4:56AM1.68m | 6:39PM1.66m | 5:28AM1.69m | 7:15PM1.65m | 6:00AM1.68m | ||||||||||||||||||
Low Tide | 11:26PM0.95m | 11:48AM0.18m | 00:00AM0.97m | 12:22PM0.16m | 00:33AM0.98m | 12:57PM0.18m | ||||||||||||||||||
 |  | | |  | | |  | |  | | | | | | | |  |  | |  |  | |  | |
 | — | — | — | 4:52 | — | — | — | — | — | — | — | 4:52 | — | — | — | — | — | — | — | 4:52 | — | — | — | — |
 | 7:05 | — | — | — | — | — | — | — | 7:06 | — | — | — | — | — | — | — | 7:07 | — | — | — | — | — | — | 7:07 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 4 | 5 | 6 | 9 | 11 | |
Temp °C | 23 | 22 | 21 | 22 | 22 | 24 | 26 | 27 | 25 | 20 | 19 | 18 | 19 | 23 | 24 | 23 | 22 | 21 | 20 | 19 | 18 | 19 | 20 | 20 |
24 | 23 | 22 | 23 | 23 | 25 | 26 | 27 | 26 | 21 | 20 | 19 | 20 | 24 | 24 | 23 | 24 | 23 | 22 | 21 | 20 | 20 | 20 | 20 | |
Swell 1 Height (m) Direction Period (s) | ESE 12 | ESE 11 | ESE 11 | ESE 11 | S 14 | S 13 | S 13 | S 12 | S 12 | S 12 | SSE 6 | SSE 6 | S 14 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 14 | S 14 | S 14 | SSW 14 | SSW 14 |
 kJ | 52 | 71 | 71 | 84 | 140 | 284 | 319 | 423 | 480 | 404 | 100 | 91 | 474 | 875 | 915 | 991 | 991 | 1127 | 775 | 1645 | 1622 | 1705 | 1226 | 1226 |
Swell 2 Height (m) Direction Period (s) | S 6 | S 6 | S 5 | S 15 | ESE 11 | ESE 11 | ESE 11 | ESE 11 | ESE 10 | S 15 | S 11 | S 11 | S 11 | SSW 16 | SSE 6 | ESE 10 | SSW 17 | SSW 18 | SSW 16 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | SE 10 |
| kJ | 5 | 5 | 2 | 73 | 84 | 84 | 85 | 74 | 32 | 118 | 305 | 235 | 235 | 259 | 27 | 19 | 195 | 211 | 487 | 43 | 41 | 40 | 40 | 26 |
Swell 3 Height (m) Direction Period (s) | SE 7 | SE 7 | S 16 | S 5 | SE 9 | SE 12 | SSE 9 | SE 12 | SE 12 | ESE 11 | S 15 | S 14 | SSE 6 | ESE 10 | ESE 10 | SE 11 | ESE 10 | ESE 10 | SE 5 | ESE 10 | E 9 | — | — | — |
| kJ | 2 | 2 | 20 | 2 | 3 | 22 | 7 | 23 | 22 | 50 | 224 | 264 | 61 | 19 | 19 | 19 | 18 | 18 | 35 | 18 | 7 | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | S 5 | — | — | — | — | SE 5 | SSE 5 | SE 4 | — | — | — | ESE 5 | ESE 10 | SE 5 | SE 6 |
| kJ | — | — | — | — | — | — | — | — | — | 48 | — | — | — | — | 19 | 15 | 23 | — | — | — | 31 | 9 | 85 | 101 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 1 | 2 | 0 | 0 | 0 | 0 | 2 | 0 | 11 | 2 | 2 | 2 | 0 | 11 | 11 | 11 | 11 | 6 | 19 | 0 | 0 | 43 | 64 | 433 |
Best forecast wave conditions in Shikoku | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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