Surf Forecasts:
How big are the waves at Asakawa today (18 Aug):
- Morning surf: Morning surf (18 Aug, local time) - 3ft (0.9m), 5s 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) - 2.5ft (0.7m), 8s period with SE swell.
The current surf forecast for Asakawa at 3PM is: 0.9m 5s primary swell from a Southeast direction and 0.4m 10s secondary swell from a Southeast direction, 0.3m 8s secondary swell from a South-southwest direction (forecast issued at 08:00am August 18). The wind direction is predicted to be onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Aug) | 3ft (0.9m) | 5s |
| Afternoon (18 Aug) | 3ft (0.9m) | 5s |
| Evening (18 Aug) | 2.5ft (0.7m) | 8s |
Table - waves today at Asakawa. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 9mm), mostly falling on Tue morning. Warm (max 29°C on Wed morning, min 25°C on Tue night). Wind will be generally light. | ||||||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | ||||||||||||||||||||
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) | SE 11 | SE 5 | SE 5 | SE 5 | SE 5 | SE 8 | SE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 7 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | S 9 | S 9 |
Wave Graph  | ||||||||||||||||||||||
 kJ | 30 | 33 | 49 | 43 | 36 | 67 | 69 | 59 | 58 | 56 | 83 | 51 | 48 | 25 | 25 | 25 | 25 | 25 | 25 | 34 | 81 | 104 |
Wind (km/h) | ||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | on | on | on | on | on | glassy | glassy | glassy | on | on | on | on | cross-on | glassy | glassy | glassy | on | on | on | cross-on | glassy |
High Tide | 9:14AM1.51m | 9:01PM1.65m | 10:05AM1.37m | 9:25PM1.57m | 11:17AM1.25m | |||||||||||||||||
Low Tide | 3:02AM0.48m | 2:55PM0.76m | 3:42AM0.53m | 3:19PM0.92m | 4:31AM0.59m | 3:42PM1.07m | ||||||||||||||||
 |  | | |  |  | |  | | |  | | | |  | | | | | | | | |
 | 5:26 | — | — | — | — | — | — | 5:26 | — | — | — | — | — | — | — | 5:26 | — | — | — | — | — | — |
 | — | — | — | — | 6:45 | — | — | — | — | — | — | — | 6:45 | — | — | — | — | — | — | — | 6:44 | — |
mm | 1 | 1 | 2 | 1 | — | 1 | 1 | — | — | — | — | 1 | — | — | — | — | — | — | — | 1 | 1 | — |
Temp °C | 25 | 27 | 27 | 28 | 27 | 26 | 26 | 26 | 25 | 27 | 29 | 28 | 27 | 26 | 26 | 26 | 25 | 28 | 29 | 28 | 27 | 26 |
Feels °C | 30 | 31 | 30 | 31 | 31 | 31 | 31 | 31 | 30 | 31 | 32 | 32 | 32 | 31 | 31 | 32 | 31 | 33 | 32 | 32 | 32 | 31 |
Swell 1 Height (m) Direction Period (s) | SE 5 | SE 11 | SE 10 | SE 10 | SE 5 | SE 8 | SE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | SE 10 | ESE 7 | SE 4 | SE 4 | ESE 7 | ESE 7 | ESE 7 | SE 10 | S 8 | S 9 | S 9 |
| kJ | 23 | 29 | 28 | 28 | 36 | 67 | 69 | 59 | 58 | 56 | 54 | 26 | 48 | 9 | 4 | 19 | 18 | 18 | 25 | 34 | 81 | 104 |
Swell 2 Height (m) Direction Period (s) | SSW 8 | SSW 8 | SSW 8 | SSW 8 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SSW 8 | SE 10 | ESE 7 | SE 10 | SE 10 | SE 10 | SE 10 | S 8 | SE 10 | SE 10 | SE 10 |
| kJ | 19 | 11 | 11 | 11 | 27 | 27 | 27 | 26 | 26 | 26 | 26 | 11 | 26 | 18 | 25 | 25 | 25 | 25 | 22 | 25 | 26 | 27 |
Swell 3 Height (m) Direction Period (s) | SE 11 | ESE 8 | ESE 9 | ESE 8 | SSW 8 | SSW 8 | SSW 8 | SSW 8 | SSW 8 | SSW 8 | SSW 8 | SW 9 | SSW 8 | SE 10 | ESE 7 | SSW 8 | SSW 8 | S 8 | ESE 7 | SE 6 | ESE 6 | ESE 7 |
| kJ | 30 | 13 | 15 | 13 | 11 | 11 | 11 | 11 | 11 | 11 | 12 | 3 | 12 | 25 | 17 | 12 | 12 | 23 | 9 | 10 | 8 | 9 |
Wind waves Height (m) Direction Period (s) | — | SE 5 | SE 5 | SE 5 | — | — | — | — | — | — | ESE 8 | ESE 8 | SE 4 | — | SE 4 | — | — | — | — | — | — | — |
| kJ | — | 33 | 49 | 43 | — | — | — | — | — | — | 83 | 51 | 10 | — | 6 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||
Distance (km) | 0 | 43 | 11 | 11 | 11 | 11 | 0 | 0 | 0 | 19 | 581 | 11 | 11 | 6 | 6 | 1 | 1 | 14 | 385 | 11 | 11 | 0 |
Best forecast wave conditions in Shikoku | ||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||
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