Surf Forecasts:
How big are the waves at Katahama today (13 Aug):
- Afternoon surf: Afternoon surf (13 Aug, local time) - 2.5ft (0.7m), 10s period with E swell.
- Evening surf: Evening surf (13 Aug, local time) - 3ft (0.9m), 11s period with E swell.
The current surf forecast for Katahama at 6PM is: 0.8m 10s primary swell from a East direction and 0.8m 4s secondary swell from a East direction (forecast issued at 02:00pm August 13). An open ocean swell of 0.9m 9s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Aug) | - | - |
| Afternoon (13 Aug) | 2.5ft (0.7m) | 10s |
| Evening (13 Aug) | 3ft (0.9m) | 11s |
Table - waves today at Katahama. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 10mm), heaviest on Thu afternoon. Warm (max 29°C on Thu afternoon, min 25°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Thu 13 | Friday 14 | Saturday 15 | ||||||||||||||||||
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) | E 10 | E 10 | E 10 | E 11 | E 11 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | ESE 10 | ESE 10 | ESE 10 |
Wave Graph  | ||||||||||||||||||||
 kJ | 87 | 87 | 121 | 178 | 267 | 257 | 252 | 252 | 300 | 352 | 352 | 165 | 162 | 288 | 384 | 434 | 440 | 394 | 386 | 386 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross-on | cross-on | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross-on | cross-on | on | on | cross-on |
High Tide | 6:11PM1.68m | 5:35AM1.70m | 6:33PM1.72m | 6:13AM1.71m | 6:57PM1.75m | |||||||||||||||
Low Tide | 11:43AM0.31m | 00:01AM0.83m | 12:10PM0.34m | 00:30AM0.73m | 12:39PM0.39m | |||||||||||||||
 | |  |  | |  |  | | | | | |  | | | | | | | | |
 | — | — | — | — | — | 5:05 | — | — | — | — | — | — | — | 5:05 | — | — | — | — | — | — |
 | — | — | 6:37 | — | — | — | — | — | — | — | 6:37 | — | — | — | — | — | — | — | 6:36 | — |
mm | — | — | 3 | 3 | 1 | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | 1 |
Temp °C | 29 | 29 | 27 | 26 | 25 | 25 | 25 | 27 | 29 | 29 | 27 | 26 | 25 | 25 | 25 | 27 | 28 | 28 | 27 | 26 |
Feels °C | 30 | 31 | 30 | 29 | 27 | 27 | 26 | 27 | 30 | 31 | 29 | 29 | 27 | 27 | 26 | 27 | 29 | 28 | 27 | 27 |
Swell 1 Height (m) Direction Period (s) | SSW 10 | SSW 10 | SSW 9 | SSW 9 | E 11 | E 10 | E 10 | E 10 | SSW 9 | SSW 9 | SSW 9 | E 10 | E 10 | SSW 9 | SSW 11 | SSW 10 | SSW 10 | SSW 10 | SSW 10 | SSW 9 |
| kJ | 168 | 175 | 139 | 133 | 267 | 257 | 252 | 252 | 119 | 116 | 113 | 165 | 162 | 68 | 167 | 149 | 143 | 137 | 129 | 119 |
Swell 2 Height (m) Direction Period (s) | E 10 | E 10 | E 10 | E 11 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SSE 11 | SSE 11 | SSE 11 | SSW 9 | SSW 9 | S 11 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 10 |
| kJ | 87 | 87 | 121 | 178 | 133 | 130 | 130 | 119 | 12 | 12 | 12 | 88 | 88 | 60 | 22 | 13 | 13 | 13 | 13 | 9 |
Swell 3 Height (m) Direction Period (s) | SSW 5 | SE 12 | SE 12 | S 12 | S 12 | S 12 | SSE 11 | SSE 11 | SE 16 | SE 15 | SE 15 | S 12 | S 11 | SSE 8 | SE 10 | SE 10 | SE 10 | SSE 10 | SSE 10 | SSE 12 |
| kJ | 5 | 5 | 6 | 11 | 25 | 24 | 12 | 12 | 9 | 9 | 9 | 25 | 40 | 13 | 17 | 16 | 16 | 10 | 10 | 14 |
Wind waves Height (m) Direction Period (s) | E 5 | E 5 | E 4 | E 4 | — | — | ENE 4 | NE 3 | E 10 | E 10 | E 10 | E 4 | E 4 | E 10 | E 10 | E 10 | E 10 | ESE 10 | ESE 10 | ESE 10 |
| kJ | 23 | 33 | 23 | 12 | — | — | 7 | 1 | 300 | 352 | 352 | 31 | 24 | 288 | 384 | 434 | 440 | 394 | 386 | 386 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 13 | 104 | 104 | 103 | 13 | 2 | 13 | 13 | 150 | 132 | 104 | 104 | 103 | 13 | 85 | 138 | 85 | 104 | 355 | 85 |
Best forecast wave conditions in Shizuoka | ||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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