Surf Forecasts:
How big are the waves at Katahama today (11 Aug):
- Morning surf: Morning surf (11 Aug, local time) - 4.5ft (1.4m), 10s period with E swell.
- Afternoon surf: Afternoon surf (11 Aug, local time) - 4ft (1.2m), 12s period with E swell.
- Evening surf: Evening surf (11 Aug, local time) - 3.5ft (1.0m), 12s period with E swell.
The current surf forecast for Katahama at 5PM is: 1.2m 11s primary swell from a East direction (forecast issued at 08:00am August 11). An open ocean swell of 0.9m 10s is not directed at the surf break, a second open ocean swell of 1.3m 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 (11 Aug) | 4.5ft (1.4m) | 10s |
| Afternoon (11 Aug) | 4ft (1.2m) | 12s |
| Evening (11 Aug) | 3.5ft (1.0m) | 12s |
Table - waves today at Katahama. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 13mm), heaviest on Tue night. Warm (max 29°C on Tue afternoon, min 23°C on Tue night). Mainly fresh winds. | ||||||||||||||||||||||
Tuesday 11 | Wednesday 12 | Thursday 13 | ||||||||||||||||||||
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 11 | E 10 | E 11 | E 12 | E 11 | E 12 | E 12 | E 11 | E 11 | E 5 | E 5 | E 5 | E 10 | E 10 | E 5 | S 5 | E 9 | E 9 | E 10 | E 9 | E 10 | E 11 |
Wave Graph  | ||||||||||||||||||||||
 kJ | 434 | 418 | 416 | 380 | 308 | 268 | 217 | 118 | 185 | 85 | 135 | 96 | 314 | 312 | 63 | 12 | 81 | 85 | 87 | 111 | 123 | 178 |
Wind (km/h) | ||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-off | cross-off | cross-off | glassy | cross-on | cross | cross | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross-on | on | on | cross-on |
High Tide | 3:38AM1.54m | 5:33PM1.60m | 4:20AM1.60m | 5:51PM1.64m | 4:58AM1.66m | 6:11PM1.68m | ||||||||||||||||
Low Tide | 10:44AM0.34m | 11:10PM1.03m | 11:15AM0.31m | 11:35PM0.94m | 11:43AM0.31m | |||||||||||||||||
 |  |  |  |  |  | |  | | | | | |  | |  | | | | | | | |
 | 5:03 | — | — | — | — | — | — | 5:03 | — | — | — | — | — | — | — | 5:05 | — | — | — | — | — | — |
 | — | — | — | — | 6:39 | — | — | — | — | — | — | — | 6:38 | — | — | — | — | — | — | — | 6:37 | — |
mm | 2 | 1 | — | — | — | — | — | 1 | 3 | — | — | 1 | 2 | 1 | 1 | — | — | — | — | — | 1 | 1 |
Temp °C | 23 | 24 | 25 | 28 | 29 | 26 | 26 | 25 | 23 | 23 | 26 | 25 | 25 | 24 | 24 | 24 | 23 | 26 | 28 | 28 | 27 | 26 |
Feels °C | 24 | 25 | 27 | 30 | 29 | 28 | 30 | 27 | 22 | 20 | 24 | 23 | 24 | 23 | 24 | 25 | 23 | 25 | 29 | 30 | 29 | 29 |
Swell 1 Height (m) Direction Period (s) | E 11 | E 10 | E 11 | E 12 | E 11 | E 12 | SSW 10 | SSW 10 | SSW 10 | SSW 10 | SSW 11 | SSW 10 | SSW 10 | SSW 10 | SW 10 | SSW 10 | SSW 10 | SSW 10 | SSW 10 | SSW 10 | SSW 9 | SSW 9 |
| kJ | 434 | 418 | 416 | 380 | 308 | 268 | 184 | 176 | 184 | 187 | 202 | 304 | 216 | 212 | 122 | 208 | 240 | 171 | 168 | 145 | 139 | 164 |
Swell 2 Height (m) Direction Period (s) | SSW 10 | SSW 11 | SSW 11 | SSW 10 | SSW 10 | SSW 10 | E 12 | E 11 | WSW 5 | SW 11 | SW 10 | SSE 13 | S 5 | S 5 | SSW 10 | S 5 | E 9 | E 9 | E 10 | E 9 | E 10 | E 11 |
| kJ | 191 | 198 | 198 | 187 | 191 | 187 | 217 | 118 | 27 | 75 | 82 | 16 | 28 | 20 | 102 | 12 | 81 | 85 | 87 | 111 | 123 | 178 |
Swell 3 Height (m) Direction Period (s) | SW 11 | SW 11 | SW 11 | SW 11 | SE 13 | SE 13 | SE 13 | SW 11 | E 11 | W 4 | SE 13 | ESE 13 | SE 13 | SE 12 | S 5 | SE 12 | SE 12 | S 6 | S 6 | S 6 | S 5 | SSE 12 |
| kJ | 168 | 162 | 159 | 159 | 7 | 7 | 7 | 119 | 112 | 3 | 7 | 16 | 6 | 6 | 13 | 6 | 5 | 27 | 27 | 18 | 9 | 14 |
Wind waves Height (m) Direction Period (s) | — | — | S 3 | WSW 3 | WSW 10 | WSW 5 | WSW 6 | WSW 6 | E 11 | E 5 | E 5 | E 5 | E 10 | E 10 | E 5 | E 9 | E 4 | E 4 | E 4 | E 4 | E 4 | E 4 |
| kJ | — | — | 1 | 3 | 347 | 147 | 215 | 87 | 185 | 85 | 135 | 96 | 314 | 312 | 63 | 202 | 22 | 22 | 17 | 24 | 17 | 7 |
Nearest Offshore or Glassy | ||||||||||||||||||||||
Distance (km) | 103 | 65 | 6 | 2 | 2 | 2 | 2 | 94 | 104 | 334 | 132 | 104 | 132 | 103 | 124 | 132 | 13 | 132 | 145 | 104 | 104 | 150 |
Best forecast wave conditions in Shizuoka | ||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||
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