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Surf Forecasts:
Asakawa surfForecast / Shikoku / Japan
48hr Weather and Surf, issued 8 am 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
22.0° C
(Which is normal for this time of year)How big are the waves at Asakawa today (30 May):
- Morning surf: Morning surf (30 May, local time) - 1.5ft (0.4m), 12s period with ESE swell.
- Afternoon surf: Afternoon surf (30 May, local time) - 1.5ft (0.4m), 12s period with ESE swell.
- Evening surf: Evening surf (30 May, local time) - 1.5ft (0.5m), 11s period with ESE swell.
The current surf forecast for Asakawa at 12PM is: 0.4m 12s primary swell from a East-southeast direction and 0.3m 6s secondary swell from a South-southeast direction (forecast issued at 08:00am May 30). An open ocean swell of 0.3m 3s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 May) | 1.5ft (0.4m) | 12s |
| Afternoon (30 May) | 1.5ft (0.4m) | 12s |
| Evening (30 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 ForecastLight rain (total 3mm), mostly falling on Mon night. Warm (max 25°C on Sat morning, min 18°C on Sun night). Wind will be generally light. | ||||||||||||||||||||||||
Saturday 30 | Sunday 31 | Monday 1 | Tue 2 | |||||||||||||||||||||
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 12 | ESE 12 | ESE 12 | ESE 12 | ESE 12 | ESE 11 | ESE 11 | ESE 11 | S 14 | S 13 | S 13 | S 12 | S 12 | S 12 | S 11 | S 15 | S 14 | S 13 | S 15 | S 15 | S 15 | S 15 | S 15 | S 14 | |
55 | 55 | 54 | 53 | 52 | 71 | 49 | 84 | 140 | 284 | 319 | 496 | 409 | 404 | 371 | 347 | 417 | 694 | 1757 | 1933 | 2341 | 2309 | 2278 | 2216 | |
Wind (km/h) | ||||||||||||||||||||||||
off | glassy | cross-on | on | glassy | cross | cross-off | glassy | glassy | glassy | cross-on | cross-on | cross-on | cross | cross | glassy | glassy | glassy | on | on | on | on | on | cross-on | |
High Tide | 4:25AM1.66m | 6:02PM1.64m | 4:56AM1.68m | 6:39PM1.66m | 5:28AM1.69m | 7:15PM1.65m | ||||||||||||||||||
Low Tide | 11:14AM0.22m | 11:26PM0.95m | 11:48AM0.18m | 00:00AM0.97m | 12:22PM0.16m | 00:33AM0.98m | ||||||||||||||||||
 | | |  | |  | | |  | | | | |  | | | | | | | | | |  | |
 | 4:54 | — | — | — | — | — | — | 4:52 | — | — | — | — | — | — | — | 4:52 | — | — | — | — | — | — | — | 4:52 |
 | — | — | — | — | 7:05 | — | — | — | — | — | — | — | 7:06 | — | — | — | — | — | — | — | 7:07 | — | — | 7:07 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | |
Temp °C | 19 | 24 | 25 | 25 | 23 | 22 | 22 | 22 | 22 | 24 | 23 | 24 | 22 | 19 | 18 | 18 | 18 | 22 | 24 | 24 | 22 | 21 | 20 | 20 |
19 | 24 | 24 | 25 | 24 | 23 | 23 | 23 | 23 | 26 | 22 | 24 | 22 | 19 | 19 | 19 | 19 | 23 | 24 | 24 | 23 | 22 | 22 | 22 | |
Swell 1 Height (m) Direction Period (s) | ESE 12 | ESE 12 | ESE 12 | ESE 12 | ESE 12 | ESE 11 | ESE 11 | ESE 11 | S 14 | S 13 | S 13 | S 12 | S 12 | S 12 | S 11 | S 11 | S 11 | S 13 | S 15 | S 15 | S 15 | S 15 | S 15 | S 14 |
 kJ | 55 | 55 | 54 | 53 | 52 | 71 | 49 | 84 | 140 | 284 | 319 | 496 | 409 | 404 | 371 | 291 | 291 | 670 | 1757 | 1933 | 2341 | 2309 | 2278 | 2216 |
Swell 2 Height (m) Direction Period (s) | SSE 6 | SSE 6 | SSE 6 | SSE 6 | S 6 | SSE 5 | SSW 5 | S 15 | ESE 11 | ESE 11 | ESE 11 | ESE 11 | ESE 10 | S 15 | S 15 | S 15 | S 14 | SSW 16 | ESE 11 | ESE 11 | ESE 10 | ESE 10 | SE 11 | ESE 10 |
| kJ | 11 | 6 | 6 | 11 | 5 | 6 | 5 | 73 | 84 | 85 | 85 | 74 | 32 | 118 | 294 | 347 | 417 | 694 | 45 | 44 | 19 | 18 | 20 | 43 |
Swell 3 Height (m) Direction Period (s) | SSW 6 | SSW 6 | SW 6 | — | SE 7 | SE 7 | SE 7 | S 5 | SE 9 | SE 12 | SSE 9 | SE 12 | SE 12 | SSE 4 | SSE 4 | SSW 18 | SSW 18 | ESE 10 | SE 14 | SE 11 | SE 11 | SE 11 | ESE 10 | ESE 9 |
| kJ | 4 | 4 | 1 | — | 2 | 2 | 7 | 2 | 3 | 22 | 7 | 23 | 22 | 9 | 6 | 260 | 337 | 19 | 7 | 19 | 19 | 20 | 18 | 8 |
Wind waves Height (m) Direction Period (s) | NNE 3 | NNE 3 | NE 3 | — | — | — | — | — | — | — | SSE 6 | — | S 4 | — | — | — | — | — | — | — | SE 5 | — | — | SE 5 |
| kJ | 1 | 1 | 2 | — | — | — | — | — | — | — | 7 | — | 10 | — | — | — | — | — | — | — | 38 | — | — | 45 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 1 | 282 | 11 | 1 | 2 | 1 | 0 | 0 | 0 | 312 | 11 | 11 | 2 | 2 | 0 | 0 | 0 | 19 | 43 | 19 | 11 | 11 | 19 |
Best forecast wave conditions in Shikoku | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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