Surf Forecasts:
How big are the waves at Katahama today (22 Aug):
- Morning surf: Morning surf (22 Aug, local time) - 1.5ft (0.5m), 10s period with E swell.
- Afternoon surf: Afternoon surf (22 Aug, local time) - 2ft (0.6m), 10s period with E swell.
- Evening surf: Evening surf (22 Aug, local time) - 2.5ft (0.7m), 11s period with E swell.
The current surf forecast for Katahama at 12AM is: 0.4m 11s primary swell from a Southeast direction and 0.3m 10s secondary swell from a East direction (forecast issued at 08:00pm August 21). An open ocean swell of 0.9m 10s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (22 Aug) | 1.5ft (0.5m) | 10s |
| Afternoon (22 Aug) | 2ft (0.6m) | 10s |
| Evening (22 Aug) | 2.5ft (0.7m) | 11s |
Table - waves today at Katahama. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 2mm), mostly falling on Sat night. Warm (max 28°C on Sat morning, min 25°C on Sun night). Wind will be generally light. | ||||||||||||||||||
Fri 21 | Saturday 22 | Sunday 23 | ||||||||||||||||
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 13 | SE 14 | E 10 | E 10 | E 11 | E 11 | E 11 | E 10 | E 10 | E 10 | E 10 | SE 13 | SE 12 | SSE 12 |
Wave Graph  | ||||||||||||||||||
 kJ | 29 | 30 | 31 | 31 | 49 | 49 | 70 | 71 | 112 | 114 | 108 | 71 | 47 | 71 | 48 | 47 | 73 | 98 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross-off | cross-off | cross-off | cross | cross | cross | cross | cross-off | glassy | glassy | cross-on | on | on | on | glassy |
High Tide | 10:40PM1.45m | 3:42PM1.37m | 00:41AM1.39m | 4:19PM1.48m | ||||||||||||||
Low Tide | 4:29PM1.22m | 7:17AM0.62m | 7:59PM1.28m | 8:42AM0.55m | ||||||||||||||
 |  |  | | | | | | | |  |  | | | |  |  | | |
 | — | — | — | 5:11 | — | — | — | — | — | — | — | 5:11 | — | — | — | — | — | — |
 | 6:29 | — | — | — | — | — | — | — | 6:27 | — | — | — | — | — | — | — | 6:25 | — |
mm | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | 1 | — | — |
Temp °C | 27 | 27 | 26 | 26 | 26 | 28 | 28 | 28 | 27 | 27 | 26 | 26 | 26 | 27 | 27 | 26 | 26 | 26 |
Feels °C | 29 | 31 | 30 | 30 | 30 | 31 | 29 | 30 | 30 | 32 | 30 | 30 | 31 | 31 | 30 | 28 | 30 | 31 |
Swell 1 Height (m) Direction Period (s) | SSW 9 | SSW 10 | SSW 10 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SSW 8 | SSW 8 | SSW 8 | SSW 8 | SW 8 |
| kJ | 146 | 166 | 163 | 149 | 130 | 130 | 130 | 119 | 130 | 116 | 101 | 111 | 86 | 82 | 80 | 80 | 80 | 72 |
Swell 2 Height (m) Direction Period (s) | ESE 9 | E 9 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 11 | E 11 | E 11 | E 10 | E 10 | E 10 | E 10 | ESE 12 | SE 12 | SSE 12 |
| kJ | 28 | 15 | 16 | 30 | 49 | 49 | 70 | 71 | 112 | 114 | 108 | 71 | 47 | 71 | 48 | 47 | 73 | 98 |
Swell 3 Height (m) Direction Period (s) | SE 11 | SE 11 | SE 11 | SE 11 | SE 13 | SE 14 | SE 13 | SE 13 | SE 5 | SSE 10 | SE 5 | ESE 11 | ESE 11 | ESE 10 | ESE 12 | SE 13 | ESE 12 | ESE 12 |
| kJ | 29 | 30 | 31 | 31 | 45 | 46 | 42 | 42 | 3 | 9 | 3 | 25 | 22 | 21 | 30 | 42 | 49 | 49 |
Wind waves Height (m) Direction Period (s) | SSW 3 | — | — | — | — | — | SW 2 | SW 3 | SW 3 | SW 3 | WSW 3 | — | — | — | — | ESE 2 | — | — |
| kJ | 1 | — | — | — | — | — | 1 | 3 | 4 | 2 | 1 | — | — | — | — | 1 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 6 | 6 | 2 | 2 | 2 | 2 | 65 | 65 | 6 | 6 | 2 | 2 | 2 | 13 | 132 | 103 | 13 | 2 |
Best forecast wave conditions in Shizuoka | ||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||
Header Global | ||||||||||||||||||
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