Surf Forecasts:
How big are the waves at Asakawa today (31 Aug):
- Morning surf: Morning surf (31 Aug, local time) - 2.5ft (0.7m), 9s period with S swell.
- Afternoon surf: Afternoon surf (31 Aug, local time) - 2ft (0.6m), 8s period with S swell.
- Evening surf: Evening surf (31 Aug, local time) - 1.5ft (0.5m), 8s period with S swell.
The current surf forecast for Asakawa at 4AM is: 0.6m 8s primary swell from a South direction and 0.3m 10s secondary swell from a Southeast direction, 0.6m 4s secondary swell from a Southwest direction (forecast issued at 08:00pm August 30). The wind direction is predicted to be glassy.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 Aug) | 2.5ft (0.7m) | 9s |
| Afternoon (31 Aug) | 2ft (0.6m) | 8s |
| Evening (31 Aug) | 1.5ft (0.5m) | 8s |
Table - waves today at Asakawa. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 6mm), mostly falling on Tue night. Warm (max 31°C on Mon morning, min 25°C on Mon night). Wind will be generally light. | ||||||||||||||||||
Sun 30 | Monday 31 | Tuesday 1 | ||||||||||||||||
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 |  |  |  |  |  |  |  | |||||||||||
Wave Height (m) Direction Period (s) | SSW 7 | SSW 7 | SSW 7 | S 7 | S 8 | S 9 | S 8 | S 8 | S 9 | SE 10 | SE 10 | S 8 | S 8 | ESE 13 | S 8 | S 8 | SSE 8 | S 8 |
Wave Graph  | ||||||||||||||||||
 kJ | 71 | 55 | 101 | 38 | 68 | 73 | 69 | 51 | 56 | 32 | 31 | 52 | 51 | 59 | 63 | 72 | 94 | 127 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-off | cross-off | glassy | glassy | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross | glassy | on | on | on | on | on |
High Tide | 7:14PM1.82m | 7:26AM1.80m | 7:38PM1.81m | 8:07AM1.73m | 8:03PM1.78m | |||||||||||||
Low Tide | 1:19AM0.40m | 1:31PM0.43m | 1:53AM0.35m | 2:01PM0.58m | ||||||||||||||
 |  |  | | | | | | | | | | | | | | |  | |
 | — | — | — | 5:35 | — | — | — | — | — | — | — | 5:35 | — | — | — | — | — | — |
 | 6:30 | — | — | — | — | — | — | — | 6:30 | — | — | — | — | — | — | — | 6:29 | — |
mm | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 29 | 27 | 27 | 27 | 27 | 30 | 31 | 30 | 28 | 27 | 26 | 25 | 25 | 28 | 30 | 30 | 28 | 27 |
Feels °C | 34 | 32 | 32 | 32 | 32 | 35 | 34 | 33 | 32 | 32 | 30 | 29 | 29 | 31 | 32 | 33 | 32 | 32 |
Swell 1 Height (m) Direction Period (s) | SE 10 | SE 10 | SSW 7 | S 7 | S 8 | S 9 | S 8 | S 8 | S 9 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | SSE 8 | S 8 |
| kJ | 37 | 37 | 54 | 38 | 68 | 73 | 69 | 51 | 56 | 31 | 31 | 52 | 51 | 32 | 63 | 72 | 94 | 127 |
Swell 2 Height (m) Direction Period (s) | SW 10 | SW 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SW 8 | SSW 9 | SSW 9 | SE 10 | ESE 14 | ESE 13 | ESE 13 | ESE 12 | E 12 | E 12 |
| kJ | 4 | 4 | 38 | 17 | 17 | 25 | 25 | 25 | 18 | 32 | 31 | 23 | 36 | 59 | 57 | 52 | 76 | 73 |
Swell 3 Height (m) Direction Period (s) | E 11 | E 10 | SW 9 | SSW 9 | ESE 9 | E 10 | SSW 10 | SSW 10 | SE 10 | SE 10 | SE 10 | ESE 14 | SE 10 | SE 9 | SE 9 | SE 9 | SE 9 | SE 10 |
| kJ | 2 | 2 | 3 | 8 | 9 | 2 | 10 | 10 | 24 | 24 | 24 | 39 | 15 | 23 | 22 | 22 | 14 | 14 |
Wind waves Height (m) Direction Period (s) | SSW 7 | SSW 7 | SSW 7 | SW 4 | SW 4 | SW 4 | SW 4 | SSW 3 | — | — | — | — | SSE 2 | — | — | — | — | — |
| kJ | 71 | 55 | 101 | 14 | 11 | 11 | 5 | 2 | — | — | — | — | 1 | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 2 | 0 | 0 | 0 | 0 | 11 | 11 | 11 | 11 | 14 | 14 | 2 | 0 | 19 | 518 | 475 | 19 | 11 |
Best forecast wave conditions in Shikoku | ||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||
Header Global | ||||||||||||||||||
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