Surf Forecasts:
How big are the waves at Asakawa today (18 Aug):
- Morning surf: Morning surf (18 Aug, local time) - 1.5ft (0.4m), 11s period with SE swell.
- Afternoon surf: Afternoon surf (18 Aug, local time) - 3ft (0.9m), 5s period with SE swell.
- Evening surf: Evening surf (18 Aug, local time) - 1.5ft (0.4m), 10s period with SE swell.
The current surf forecast for Asakawa at 1AM is: 0.4m 11s primary swell from a Southeast direction and 0.4m 8s secondary swell from a South-southwest direction, 0.7m 5s secondary swell from a Southeast direction (forecast issued at 08:00pm August 17). The wind direction is predicted to be glassy.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Aug) | 1.5ft (0.4m) | 11s |
| Afternoon (18 Aug) | 3ft (0.9m) | 5s |
| Evening (18 Aug) | 1.5ft (0.4m) | 10s |
Table - waves today at Asakawa. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 16mm), heaviest on Tue morning. Warm (max 29°C on Thu morning, min 25°C on Mon night). Wind will be generally light. | ||||||||||||||||||
Mon 17 | Tuesday 18 | Wednesday 19 | ||||||||||||||||
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) | SE 11 | SE 11 | SE 11 | SE 11 | SE 5 | SE 11 | SE 5 | SE 5 | SE 5 | SE 10 | SE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | SE 10 | SE 10 |
Wave Graph  | ||||||||||||||||||
 kJ | 30 | 30 | 30 | 30 | 24 | 29 | 35 | 35 | 35 | 27 | 69 | 59 | 58 | 56 | 52 | 51 | 26 | 25 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | glassy | glassy | glassy | glassy | on | on | on | on | on | glassy | glassy | glassy | cross-on | on | on | on | glassy |
High Tide | 8:38PM1.72m | 9:14AM1.51m | 9:01PM1.65m | 10:05AM1.37m | ||||||||||||||
Low Tide | 3:02AM0.48m | 2:55PM0.76m | 3:42AM0.53m | 3:19PM0.92m | ||||||||||||||
 |  |  |  |  |  | | | |  | | | | | | |  |  | |
 | — | — | — | 5:26 | — | — | — | — | — | — | — | 5:26 | — | — | — | — | — | — |
 | 6:46 | — | — | — | — | — | — | — | 6:45 | — | — | — | — | — | — | — | 6:45 | — |
mm | — | — | 1 | 2 | 1 | 1 | 3 | 1 | — | 1 | — | — | 1 | 1 | 1 | — | — | — |
Temp °C | 27 | 25 | 25 | 25 | 25 | 27 | 27 | 28 | 27 | 26 | 26 | 25 | 25 | 28 | 28 | 28 | 27 | 26 |
Feels °C | 31 | 29 | 30 | 29 | 30 | 31 | 31 | 32 | 32 | 31 | 31 | 31 | 30 | 33 | 31 | 32 | 32 | 31 |
Swell 1 Height (m) Direction Period (s) | SE 5 | SE 5 | SSW 8 | SSW 8 | SE 5 | SE 11 | SE 10 | SE 5 | SE 5 | SE 5 | SE 8 | ESE 8 | ESE 8 | SE 10 | SE 10 | ESE 8 | ESE 5 | ESE 5 |
| kJ | 29 | 24 | 20 | 19 | 23 | 29 | 28 | 35 | 35 | 24 | 69 | 59 | 58 | 26 | 26 | 51 | 14 | 14 |
Swell 2 Height (m) Direction Period (s) | SSW 8 | SSW 8 | SE 11 | SE 11 | SSW 8 | SSW 8 | SSW 8 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SSW 8 | SSW 8 | SE 10 | ESE 7 | ESE 7 |
| kJ | 21 | 20 | 30 | 30 | 19 | 11 | 11 | 28 | 27 | 27 | 27 | 26 | 26 | 11 | 12 | 26 | 18 | 18 |
Swell 3 Height (m) Direction Period (s) | SE 11 | SE 11 | ESE 9 | ESE 9 | ESE 8 | — | — | SSW 8 | SSW 8 | SSW 8 | SSW 8 | SSW 8 | SSW 8 | S 9 | SW 9 | SSW 8 | SE 10 | SE 10 |
| kJ | 30 | 30 | 15 | 15 | 24 | — | — | 11 | 11 | 11 | 11 | 11 | 11 | 1 | 3 | 6 | 26 | 25 |
Wind waves Height (m) Direction Period (s) | — | — | SE 4 | SE 5 | — | ESE 5 | SE 5 | — | — | SE 4 | — | — | — | ESE 8 | ESE 8 | SE 4 | — | — |
| kJ | — | — | 21 | 23 | — | 29 | 35 | — | — | 20 | — | — | — | 56 | 52 | 15 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 475 | 0 | 0 | 0 | 1 | 43 | 369 | 11 | 14 | 11 | 0 | 0 | 0 | 14 | 369 | 11 | 369 | 1 |
Best forecast wave conditions in Shikoku | ||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||
Header Global | ||||||||||||||||||
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