Surf Forecasts:
How big are the waves at Katahama today (12 Aug):
- Morning surf: Morning surf (12 Aug, local time) - 2ft (0.6m), 10s period with E swell.
- Afternoon surf: Afternoon surf (12 Aug, local time) - 0.5ft (0.2m), 13s period with SSE swell.
- Evening surf: Evening surf (12 Aug, local time) - 4.5ft (1.3m), 5s period with E swell.
The current surf forecast for Katahama at 4PM is: 0.2m 13s primary swell from a South-southeast direction (forecast issued at 08:00am August 12). An open ocean swell of 1.1m 10s is not directed at the surf break, a second open ocean swell of 1.1m 10s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 Aug) | 2ft (0.6m) | 10s |
| Afternoon (12 Aug) | 0.5ft (0.2m) | 13s |
| Evening (12 Aug) | 4.5ft (1.3m) | 5s |
Table - waves today at Katahama. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 12mm), heaviest on Fri night. Warm (max 29°C on Thu morning, min 23°C on Wed morning). Wind will be generally light. | ||||||||||||||||||||||
Wednesday 12 | Thursday 13 | Friday 14 | ||||||||||||||||||||
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) | SSW 10 | E 10 | SE 13 | SSE 13 | E 10 | E 5 | E 10 | E 9 | E 9 | E 9 | E 10 | E 10 | E 10 | E 11 | E 11 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 |
Wave Graph  | ||||||||||||||||||||||
 kJ | 0 | 75 | 7 | 17 | 223 | 77 | 255 | 60 | 81 | 85 | 87 | 113 | 123 | 178 | 178 | 175 | 172 | 168 | 168 | 168 | 168 | 296 |
Wind (km/h) | ||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross-on | on | on | cross-on | cross | cross | cross | cross | cross-on | on | on | cross-on |
High Tide | 4:20AM1.60m | 5:51PM1.64m | 4:58AM1.66m | 6:11PM1.68m | 5:35AM1.70m | 6:33PM1.72m | ||||||||||||||||
Low Tide | 11:15AM0.31m | 11:35PM0.94m | 11:43AM0.31m | 00:01AM0.83m | 12:10PM0.34m | |||||||||||||||||
 |  |  | | |  |  | | |  | | | |  | |  | | | | | | | |
 | 5:03 | — | — | — | — | — | — | 5:05 | — | — | — | — | — | — | — | 5:05 | — | — | — | — | — | — |
 | — | — | — | — | 6:38 | — | — | — | — | — | — | — | 6:37 | — | — | — | — | — | — | — | 6:37 | — |
mm | 2 | 2 | — | — | 1 | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | 1 | 4 |
Temp °C | 24 | 23 | 25 | 27 | 26 | 25 | 25 | 24 | 24 | 27 | 29 | 29 | 28 | 26 | 26 | 25 | 25 | 27 | 29 | 29 | 28 | 27 |
Feels °C | 25 | 23 | 23 | 25 | 26 | 25 | 25 | 24 | 24 | 26 | 29 | 30 | 30 | 28 | 28 | 27 | 26 | 27 | 31 | 31 | 30 | 30 |
Swell 1 Height (m) Direction Period (s) | SSW 10 | SSW 10 | SSW 10 | SSW 10 | SSW 10 | SSW 10 | SW 10 | SSW 10 | SSW 10 | SSW 10 | SSW 10 | SSW 10 | SSW 9 | SSW 9 | E 11 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | SSW 9 |
| kJ | 184 | 202 | 180 | 260 | 255 | 131 | 122 | 245 | 240 | 204 | 200 | 145 | 139 | 133 | 178 | 175 | 172 | 168 | 168 | 168 | 168 | 70 |
Swell 2 Height (m) Direction Period (s) | WSW 5 | E 10 | SW 11 | SSE 13 | SE 13 | SW 10 | SSW 10 | E 9 | E 9 | E 9 | E 10 | E 10 | E 10 | E 11 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | S 12 |
| kJ | 23 | 75 | 112 | 17 | 6 | 127 | 102 | 60 | 81 | 85 | 87 | 113 | 123 | 178 | 133 | 130 | 130 | 119 | 119 | 92 | 94 | 48 |
Swell 3 Height (m) Direction Period (s) | SW 11 | SW 11 | SE 13 | ESE 13 | S 4 | SE 12 | S 5 | SE 12 | — | SE 12 | SE 12 | SE 12 | SE 12 | S 12 | S 12 | S 12 | SSE 11 | SSE 11 | SSE 11 | SSE 11 | S 8 | SE 11 |
| kJ | 119 | 75 | 7 | 16 | 9 | 6 | 13 | 6 | — | 5 | 6 | 5 | 6 | 11 | 25 | 24 | 12 | 12 | 12 | 12 | 12 | 18 |
Wind waves Height (m) Direction Period (s) | — | E 3 | ENE 10 | E 10 | E 10 | E 5 | E 10 | E 4 | E 4 | E 4 | E 4 | E 4 | E 4 | E 4 | E 4 | E 4 | E 4 | E 5 | E 6 | E 5 | ESE 5 | E 10 |
| kJ | — | 7 | 260 | 234 | 223 | 77 | 255 | 22 | 17 | 22 | 26 | 33 | 25 | 17 | 11 | 11 | 19 | 45 | 59 | 56 | 42 | 296 |
Nearest Offshore or Glassy | ||||||||||||||||||||||
Distance (km) | 13 | 103 | 104 | 104 | 132 | 103 | 103 | 13 | 13 | 13 | 150 | 150 | 104 | 150 | 103 | 13 | 13 | 13 | 150 | 104 | 104 | 104 |
Best forecast wave conditions in Shizuoka | ||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||
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