Surf Forecasts:
How big are the waves at Katahama today (13 Aug):
- Morning surf: Morning surf (13 Aug, local time) - 2.5ft (0.7m), 9s period with E swell.
- Afternoon surf: Afternoon surf (13 Aug, local time) - 2.5ft (0.8m), 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 5AM is: 0.6m 9s primary swell from a East direction and 0.8m 4s secondary swell from a East direction (forecast issued at 02:00am August 13). An open ocean swell of 1.0m 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 (13 Aug) | 2.5ft (0.7m) | 9s |
| Afternoon (13 Aug) | 2.5ft (0.8m) | 10s |
| Evening (13 Aug) | 3ft (0.9m) | 11s |
Table - waves today at Katahama. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 6mm), mostly falling on Thu afternoon. Warm (max 29°C on Thu morning, min 24°C on Thu night). Wind will be generally light. | ||||||||||||||||||||||||
Thursday 13 | Friday 14 | Saturday 15 | ||||||||||||||||||||||
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) | 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 | E 10 | E 10 | E 10 | E 10 | E 10 | ESE 10 | ESE 10 | ESE 9 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 64 | 60 | 60 | 85 | 87 | 113 | 121 | 178 | 178 | 262 | 252 | 252 | 352 | 168 | 168 | 165 | 242 | 162 | 282 | 379 | 440 | 386 | 386 | 302 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross-on | on | on | cross-on | cross | cross | cross-off | cross | cross-on | on | cross-on | cross-on | cross | cross | cross | cross-on | cross-on | on | on | cross-on |
High Tide | 4:58AM1.66m | 6:11PM1.68m | 5:35AM1.70m | 6:33PM1.72m | 6:13AM1.71m | 6:57PM1.75m | ||||||||||||||||||
Low Tide | 11:35PM0.94m | 11:43AM0.31m | 00:01AM0.83m | 12:10PM0.34m | 00:30AM0.73m | 12:39PM0.39m | ||||||||||||||||||
 |  |  | |  | |  | | |  | | | | | | | |  | | | | | | | |
 | — | 5:05 | — | — | — | — | — | — | — | 5:05 | — | — | — | — | — | — | — | 5:05 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 6:37 | — | — | — | — | — | — | — | 6:37 | — | — | — | — | — | — | — | 6:36 | — |
mm | 1 | 1 | — | — | — | — | 1 | 1 | 1 | — | — | — | — | — | 1 | 1 | — | — | — | 1 | — | — | — | — |
Temp °C | 25 | 24 | 24 | 26 | 29 | 29 | 28 | 26 | 25 | 25 | 24 | 28 | 29 | 29 | 28 | 27 | 26 | 25 | 26 | 27 | 28 | 28 | 27 | 26 |
Feels °C | 26 | 25 | 25 | 26 | 30 | 31 | 30 | 29 | 27 | 27 | 25 | 28 | 30 | 30 | 30 | 30 | 29 | 27 | 27 | 28 | 29 | 28 | 27 | 27 |
Swell 1 Height (m) Direction Period (s) | SW 10 | SSW 10 | SSW 10 | SSW 10 | SSW 10 | SSW 10 | SSW 9 | SSW 9 | E 11 | E 10 | E 10 | E 10 | SSW 9 | E 10 | E 10 | E 10 | SSW 9 | E 10 | SSW 11 | SSW 10 | SSW 10 | SSW 10 | SSW 10 | SSW 9 |
| kJ | 122 | 208 | 204 | 171 | 168 | 175 | 139 | 133 | 178 | 262 | 252 | 252 | 119 | 168 | 168 | 165 | 68 | 162 | 167 | 149 | 143 | 137 | 129 | 116 |
Swell 2 Height (m) Direction Period (s) | SSW 10 | E 9 | E 9 | E 9 | E 10 | E 10 | E 10 | E 11 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SSE 11 | SSW 9 | SSW 9 | SSW 9 | S 11 | SSW 9 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SE 10 |
| kJ | 102 | 60 | 60 | 85 | 87 | 113 | 121 | 178 | 133 | 130 | 130 | 119 | 12 | 116 | 92 | 88 | 40 | 68 | 13 | 13 | 14 | 13 | 13 | 28 |
Swell 3 Height (m) Direction Period (s) | E 10 | S 5 | S 5 | SSW 5 | SSW 5 | SE 12 | SE 12 | S 12 | S 12 | S 12 | SSE 11 | SSE 11 | SE 16 | SSE 11 | S 8 | S 12 | SE 11 | S 11 | SE 10 | SE 10 | WSW 10 | SSE 10 | SSE 12 | SE 10 |
| kJ | 64 | 18 | 14 | 10 | 5 | 5 | 6 | 11 | 25 | 24 | 12 | 12 | 9 | 12 | 12 | 25 | 18 | 60 | 17 | 17 | 9 | 10 | 15 | 16 |
Wind waves Height (m) Direction Period (s) | E 4 | E 4 | E 4 | E 4 | E 5 | E 5 | E 4 | E 4 | E 4 | — | ENE 4 | NE 3 | E 10 | E 5 | E 5 | E 4 | E 10 | E 4 | E 10 | E 10 | E 10 | ESE 10 | ESE 10 | ESE 9 |
| kJ | 19 | 18 | 19 | 25 | 22 | 27 | 17 | 11 | 7 | — | 10 | 1 | 352 | 60 | 36 | 25 | 242 | 13 | 282 | 379 | 440 | 386 | 386 | 302 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 112 | 103 | 103 | 103 | 103 | 13 | 13 | 150 | 104 | 103 | 13 | 2 | 2 | 13 | 150 | 150 | 150 | 103 | 103 | 13 | 13 | 138 | 85 | 104 |
Best forecast wave conditions in Shizuoka | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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