Surf Forecasts:
How big are the waves at Asakawa today (21 Aug):
- Morning surf: Morning surf (21 Aug, local time) - 3ft (0.9m), 9s period with S swell.
- Afternoon surf: Afternoon surf (21 Aug, local time) - 3ft (0.9m), 10s period with S swell.
- Evening surf: Evening surf (21 Aug, local time) - 3ft (0.9m), 9s period with S swell.
The current surf forecast for Asakawa at 5PM is: 0.9m 9s primary swell from a South direction and 0.4m 11s secondary swell from a East-southeast direction (forecast issued at 08:00am August 21). The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Aug) | 3ft (0.9m) | 9s |
| Afternoon (21 Aug) | 3ft (0.9m) | 10s |
| Evening (21 Aug) | 3ft (0.9m) | 9s |
Table - waves today at Asakawa. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 3mm), mostly falling on Fri afternoon. Warm (max 30°C on Sat morning, min 25°C on Fri night). Wind will be generally light. | ||||||||||||||||||||||
Friday 21 | Saturday 22 | Sunday 23 | ||||||||||||||||||||
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 | |
Swell Height Map |  |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | S 9 | S 9 | S 10 | S 10 | S 9 | S 9 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SSW 8 | SSW 8 | SSW 8 | SSW 8 | SSW 8 | S 8 | SE 13 | SE 13 | SE 12 |
Wave Graph  | ||||||||||||||||||||||
 kJ | 123 | 127 | 148 | 145 | 133 | 130 | 108 | 108 | 108 | 108 | 82 | 80 | 79 | 55 | 55 | 54 | 55 | 55 | 49 | 49 | 84 | 122 |
Wind (km/h) | ||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | on | cross-on | cross-on | cross-on | cross | cross | glassy | glassy | on | cross-on | cross-on | cross | cross | cross-off | glassy | glassy | on | cross-on | cross-on | cross-on |
High Tide | 2:05PM1.21m | 10:36PM1.39m | 4:20PM1.32m | 00:36AM1.34m | 4:43PM1.42m | |||||||||||||||||
Low Tide | 5:42AM0.66m | 4:07PM1.20m | 7:28AM0.66m | 8:19PM1.26m | 8:57AM0.58m | |||||||||||||||||
 |  | |  | |  |  | | | | | | | | | | | | | | | | |
 | 5:28 | — | — | — | — | — | — | 5:28 | — | — | — | — | — | — | — | 5:28 | — | — | — | — | — | — |
 | — | — | — | — | 6:43 | — | — | — | — | — | — | — | 6:40 | — | — | — | — | — | — | — | 6:39 | — |
mm | — | — | — | 1 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 28 | 29 | 29 | 28 | 26 | 26 | 25 | 25 | 28 | 30 | 29 | 28 | 26 | 26 | 25 | 25 | 29 | 30 | 30 | 28 | 26 |
Feels °C | 29 | 33 | 33 | 33 | 33 | 30 | 31 | 29 | 30 | 33 | 33 | 32 | 32 | 30 | 31 | 29 | 29 | 33 | 33 | 33 | 33 | 31 |
Swell 1 Height (m) Direction Period (s) | S 9 | S 9 | S 10 | S 10 | S 9 | S 9 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SSW 8 | SSW 8 | SSW 8 | SSW 8 | SSW 8 | S 8 | S 8 | SE 13 | SE 12 |
| kJ | 123 | 127 | 148 | 145 | 133 | 130 | 108 | 108 | 108 | 108 | 82 | 80 | 79 | 55 | 55 | 54 | 55 | 55 | 49 | 49 | 84 | 122 |
Swell 2 Height (m) Direction Period (s) | ESE 11 | ESE 11 | ESE 11 | ESE 11 | ESE 11 | ESE 11 | SE 11 | SE 11 | SE 11 | ESE 10 | ESE 10 | SE 10 | ESE 10 | ESE 10 | ESE 10 | SE 10 | ESE 10 | ESE 11 | SW 9 | SE 13 | SSW 9 | S 8 |
| kJ | 44 | 44 | 44 | 44 | 44 | 44 | 29 | 29 | 29 | 43 | 42 | 17 | 10 | 10 | 10 | 27 | 21 | 39 | 20 | 45 | 32 | 34 |
Swell 3 Height (m) Direction Period (s) | ESE 7 | ESE 7 | ESE 6 | ESE 6 | ESE 6 | ESE 6 | ESE 6 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | E 10 | ESE 13 | ESE 13 | ESE 13 | ESE 13 | ESE 13 | SSE 10 | ESE 11 | ESE 11 | ESE 10 | SSW 9 |
| kJ | 9 | 4 | 4 | 4 | 4 | 3 | 3 | 5 | 5 | 4 | 4 | 8 | 16 | 16 | 16 | 16 | 17 | 9 | 23 | 23 | 21 | 33 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | SSW 2 | — | — | — | — | — | — | — | S 8 | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | 48 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||
Distance (km) | 0 | 0 | 11 | 11 | 11 | 2 | 2 | 2 | 0 | 0 | 19 | 30 | 19 | 2 | 2 | 0 | 0 | 0 | 11 | 11 | 11 | 11 |
Best forecast wave conditions in Shikoku | ||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||
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