Surf Forecasts:
How big are the waves at Katahama today (19 Aug):
- Morning surf: Morning surf (19 Aug, local time) - 2.5ft (0.7m), 7s period with ESE swell.
- Afternoon surf: Afternoon surf (19 Aug, local time) - 2ft (0.6m), 7s period with ESE swell.
- Evening surf: Evening surf (19 Aug, local time) - 1.5ft (0.4m), 10s period with SE swell.
The current surf forecast for Katahama at 10AM is: 0.7m 7s primary swell from a East-southeast direction and 0.4m 10s secondary swell from a Southeast direction (forecast issued at 02:00am August 19). The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 Aug) | 2.5ft (0.7m) | 7s |
| Afternoon (19 Aug) | 2ft (0.6m) | 7s |
| Evening (19 Aug) | 1.5ft (0.4m) | 10s |
Table - waves today at Katahama. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 28°C on Wed afternoon, min 25°C on Wed night). Wind will be generally light. | ||||||||||||||||||||||||
Wednesday 19 | Thursday 20 | Friday 21 | ||||||||||||||||||||||
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 | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | |
Swell Height Map |  |  |  |  |  |  |  |  |  | |||||||||||||||
Wave Height (m) Direction Period (s) | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 59 | 56 | 54 | 41 | 30 | 29 | 25 | 25 | 25 | 25 | 27 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 33 | 29 | 30 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-off | cross-off | cross-on | on | cross-on | cross-on | glassy | glassy | glassy | glassy | on | on | cross-on | cross-on | glassy | glassy | glassy | glassy | cross-on | cross-on | cross-on | cross | cross |
High Tide | 9:17AM1.38m | 9:00PM1.63m | 10:43AM1.25m | 9:40PM1.54m | 1:49PM1.24m | |||||||||||||||||||
Low Tide | 3:13AM0.59m | 2:45PM0.89m | 4:14AM0.62m | 3:23PM1.06m | 5:36AM0.65m | 4:29PM1.22m | ||||||||||||||||||
 | |  | |  | | | | | | | | | | |  | | | | | | | | | |
 | — | 5:09 | — | — | — | — | — | — | — | 5:09 | — | — | — | — | — | — | — | 5:11 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 6:30 | — | — | — | — | — | — | — | 6:30 | — | — | — | — | — | — | — | 6:29 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 25 | 25 | 27 | 27 | 28 | 27 | 26 | 26 | 25 | 25 | 27 | 27 | 27 | 27 | 26 | 26 | 25 | 25 | 27 | 28 | 28 | 27 | 27 |
Feels °C | 30 | 29 | 28 | 30 | 29 | 30 | 30 | 31 | 31 | 29 | 29 | 31 | 29 | 29 | 30 | 30 | 31 | 29 | 29 | 30 | 30 | 30 | 29 | 31 |
Swell 1 Height (m) Direction Period (s) | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 6 | ESE 6 | ESE 6 | ESE 6 | ESE 6 | ESE 6 | ESE 6 | SSW 8 | S 8 | S 8 | S 9 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SSW 10 |
| kJ | 59 | 56 | 54 | 41 | 30 | 29 | 23 | 23 | 15 | 15 | 15 | 15 | 16 | 24 | 35 | 51 | 78 | 84 | 108 | 106 | 106 | 140 | 146 | 166 |
Swell 2 Height (m) Direction Period (s) | SE 10 | SSW 8 | SSW 8 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 11 | SSW 9 | ESE 6 | ESE 6 | ESE 6 | SE 6 | SE 11 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 |
| kJ | 16 | 12 | 11 | 16 | 25 | 25 | 25 | 25 | 25 | 25 | 27 | 30 | 26 | 15 | 14 | 13 | 9 | 30 | 27 | 28 | 27 | 33 | 28 | 29 |
Swell 3 Height (m) Direction Period (s) | SSW 8 | SE 10 | SE 10 | SW 9 | SW 9 | SSW 8 | SW 9 | SW 9 | SW 9 | SW 9 | SW 9 | SSW 8 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | ESE 6 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 |
| kJ | 12 | 16 | 16 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 6 | 30 | 30 | 30 | 30 | 30 | 6 | 30 | 30 | 30 | 30 | 29 | 30 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | S 2 | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 13 | 13 | 13 | 13 | 208 | 208 | 208 | 6 | 6 | 6 | 6 | 145 | 148 | 208 | 148 | 6 | 2 | 2 | 2 | 6 | 6 | 6 | 6 | 2 |
Best forecast wave conditions in Shizuoka | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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