Surf Forecasts:
How big are the waves at Katahama today (10 Aug):
- Morning surf: Morning surf (10 Aug, local time) - 4.5ft (1.4m), 12s period with E swell.
- Afternoon surf: Afternoon surf (10 Aug, local time) - 5ft (1.5m), 12s period with E swell.
- Evening surf: Evening surf (10 Aug, local time) - 4.5ft (1.4m), 11s period with E swell.
The current surf forecast for Katahama at 5AM is: 1.3m 12s primary swell from a East direction (forecast issued at 02:00am August 10). An open ocean swell of 1.4m 12s is not directed at the surf break. The wind direction is predicted to be glassy and the swell rating is 3.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (10 Aug) | 4.5ft (1.4m) | 12s |
| Afternoon (10 Aug) | 5ft (1.5m) | 12s |
| Evening (10 Aug) | 4.5ft (1.4m) | 11s |
Table - waves today at Katahama. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 23mm), heaviest during Mon night. Warm (max 27°C on Mon morning, min 22°C on Tue night). Wind will be generally light. | ||||||||||||||||||||||||
Monday 10 | Tuesday 11 | Wednesday 12 | ||||||||||||||||||||||
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 12 | E 12 | E 12 | E 12 | E 12 | E 12 | E 12 | E 11 | E 11 | E 11 | E 10 | E 10 | E 11 | E 12 | E 12 | E 12 | E 12 | SSE 3 | E 11 | E 11 | E 10 | ESE 10 | E 10 | E 10 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 593 | 497 | 505 | 584 | 556 | 628 | 538 | 502 | 459 | 517 | 426 | 410 | 457 | 454 | 454 | 387 | 336 | 10 | 152 | 110 | 100 | 342 | 273 | 65 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | glassy | glassy | cross-on | cross | cross | cross-on | on | glassy | glassy | on | cross-on | cross-on | cross | cross-off | on | cross-on | cross | cross | cross-on | cross | cross-on | cross-on |
High Tide | 2:47AM1.48m | 5:12PM1.55m | 3:38AM1.54m | 5:33PM1.60m | 4:20AM1.60m | 5:51PM1.64m | ||||||||||||||||||
Low Tide | 10:05PM1.19m | 10:08AM0.39m | 10:43PM1.12m | 10:44AM0.34m | 11:10PM1.03m | 11:15AM0.31m | ||||||||||||||||||
 | |  |  |  | | | | | | | | |  | | |  | |  | | |  | |  | |
 | — | 5:03 | — | — | — | — | — | — | — | 5:03 | — | — | — | — | — | — | — | 5:03 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 6:40 | — | — | — | — | — | — | — | 6:39 | — | — | — | — | — | — | — | 6:38 | — |
mm | 1 | 5 | 1 | — | — | 1 | 1 | 3 | 3 | 2 | 3 | 1 | 1 | — | — | 1 | 1 | 2 | 1 | — | 1 | 2 | — | — |
Temp °C | 26 | 24 | 25 | 27 | 27 | 27 | 27 | 25 | 24 | 24 | 23 | 23 | 24 | 25 | 25 | 25 | 24 | 23 | 22 | 23 | 24 | 24 | 25 | 25 |
Feels °C | 31 | 27 | 29 | 32 | 29 | 29 | 30 | 28 | 28 | 29 | 27 | 26 | 26 | 27 | 28 | 28 | 26 | 23 | 22 | 22 | 22 | 22 | 23 | 24 |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 12 | SW 12 | SSW 11 | SSW 11 | E 12 | E 12 | E 11 | E 11 | E 11 | SSW 10 | E 10 | E 11 | E 12 | E 12 | E 12 | E 12 | SSW 10 | SSW 10 | SSW 10 | SSW 10 | SSW 10 | SSW 10 | SW 10 |
| kJ | 724 | 511 | 551 | 651 | 553 | 628 | 538 | 502 | 459 | 517 | 191 | 410 | 457 | 454 | 454 | 387 | 336 | 176 | 198 | 187 | 149 | 260 | 216 | 127 |
Swell 2 Height (m) Direction Period (s) | E 12 | E 12 | E 12 | E 12 | E 12 | SSW 10 | SW 11 | SSW 10 | SW 11 | SW 11 | SW 11 | SSW 11 | SSW 11 | SSW 10 | SSW 10 | SSW 10 | SSW 10 | E 12 | E 11 | E 11 | SW 11 | SSE 13 | SE 13 | SSW 10 |
| kJ | 593 | 497 | 505 | 584 | 556 | 222 | 297 | 176 | 216 | 220 | 168 | 202 | 198 | 187 | 191 | 187 | 237 | 216 | 152 | 110 | 112 | 17 | 6 | 102 |
Swell 3 Height (m) Direction Period (s) | SSW 11 | S 12 | S 11 | SSE 12 | SE 12 | SW 11 | S 10 | SW 11 | SSW 10 | SSW 11 | SE 11 | SW 11 | SW 11 | SW 11 | SW 10 | SW 10 | SW 11 | SW 11 | SW 11 | SW 11 | E 10 | SE 13 | SE 13 | E 10 |
| kJ | 202 | 336 | 198 | 13 | 5 | 233 | 133 | 233 | 184 | 198 | 4 | 165 | 159 | 159 | 147 | 147 | 114 | 119 | 119 | 116 | 100 | 7 | 6 | 65 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | E 4 | — | — | — | E 11 | E 11 | E 10 | — | — | — | SW 3 | SW 3 | SSW 3 | SSE 3 | ESE 3 | ESE 4 | ESE 5 | ESE 10 | E 10 | ESE 5 |
| kJ | — | — | — | — | 5 | — | — | — | 843 | 743 | 426 | — | — | — | 3 | 3 | 3 | 10 | 10 | 11 | 39 | 342 | 273 | 35 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 6 | 6 | 2 | 13 | 2 | 2 | 6 | 6 | 6 | 2 | 150 | 94 | 103 | 94 | 65 | 210 | 6 | 2 | 13 | 65 | 13 | 104 | 104 | 103 |
Best forecast wave conditions in Shizuoka | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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