Surf Forecasts:
How big are the waves at Katahama today (20 Oct):
- Afternoon surf: Afternoon surf (20 Oct, local time) - 4.5ft (1.4m), 12s period with SSE swell.
- Evening surf: Evening surf (20 Oct, local time) - 4ft (1.2m), 13s period with SE swell.
The current surf forecast for Katahama at 8PM is: 1.1m 13s primary swell from a Southeast direction and 0.4m 18s secondary swell from a South-southeast direction, 1.0m 5s secondary swell from a South-southwest direction (forecast issued at 02:00pm October 20). The wind direction is predicted to be cross-offshore and the swell rating is 3.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Oct) | - | - |
| Afternoon (20 Oct) | 4.5ft (1.4m) | 12s |
| Evening (20 Oct) | 4ft (1.2m) | 13s |
Table - waves today at Katahama. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 9mm), mostly falling on Tue night. Warm (max 26°C on Tue afternoon, min 17°C on Fri morning). Winds increasing (light winds from the WSW on Tue night, fresh winds from the WSW by Wed morning). | ||||||||||||||||||||
Tue 20 | Wednesday 21 | Thursday 22 | ||||||||||||||||||
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) | SSE 13 | SSE 12 | SE 12 | SE 13 | SE 13 | SE 12 | SSE 16 | SSE 13 | SSE 16 | SSE 16 | SSE 15 | SSE 15 | SSE 14 | S 14 | S 14 | S 14 | S 14 | S 13 | S 13 | S 13 |
Wave Graph  | ||||||||||||||||||||
 kJ | 596 | 579 | 277 | 501 | 509 | 435 | 527 | 489 | 778 | 882 | 1602 | 1776 | 1382 | 1572 | 1668 | 1640 | 1304 | 1283 | 1110 | 865 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-on | cross |
High Tide | 2:30PM1.51m | 2:04AM1.31m | 3:03PM1.57m | 3:05AM1.40m | 3:30PM1.61m | |||||||||||||||
Low Tide | 8:49PM0.95m | 8:20AM0.67m | 9:26PM0.80m | 9:11AM0.68m | ||||||||||||||||
 | |  |  |  | | | | | | | | | |  | |  | |  | | |
 | — | — | — | — | — | 5:56 | — | — | — | — | — | — | — | 5:56 | — | — | — | — | — | — |
 | — | 5:07 | — | — | — | — | — | — | — | 5:06 | — | — | — | — | — | — | — | 5:05 | — | — |
mm | 2 | 1 | — | 1 | 1 | 2 | 1 | 1 | 1 | 1 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 26 | 25 | 25 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 24 | 23 | 22 | 21 | 20 | 23 | 23 | 21 | 19 |
Feels °C | 26 | 26 | 26 | 27 | 26 | 25 | 25 | 24 | 24 | 24 | 24 | 22 | 19 | 16 | 15 | 14 | 18 | 20 | 18 | 16 |
Swell 1 Height (m) Direction Period (s) | SSE 13 | SSE 15 | SE 12 | SE 13 | SE 13 | SE 12 | SE 12 | SSE 13 | SSE 16 | SSE 16 | SSE 15 | SSE 15 | SSE 14 | S 14 | S 14 | S 14 | S 14 | S 13 | S 13 | S 13 |
| kJ | 596 | 188 | 277 | 501 | 509 | 435 | 325 | 489 | 778 | 882 | 1602 | 1776 | 1382 | 1572 | 1668 | 1640 | 1304 | 1283 | 1110 | 865 |
Swell 2 Height (m) Direction Period (s) | SSE 16 | SSE 15 | SSE 14 | SSE 18 | S 18 | SSE 17 | SSE 16 | SSE 16 | SE 12 | SSE 12 | S 20 | S 18 | S 18 | SE 9 | S 15 | SE 9 | SE 9 | W 6 | W 6 | SSW 17 |
| kJ | 144 | 123 | 165 | 110 | 225 | 286 | 527 | 454 | 319 | 359 | 190 | 758 | 402 | 41 | 750 | 41 | 43 | 75 | 29 | 367 |
Swell 3 Height (m) Direction Period (s) | S 22 | S 19 | SSE 20 | — | SSE 13 | — | — | — | — | — | S 19 | SE 9 | SE 9 | — | SE 9 | — | — | SE 9 | SE 10 | W 5 |
| kJ | 9 | 29 | 75 | — | 137 | — | — | — | — | — | 460 | 41 | 41 | — | 41 | — | — | 41 | 45 | 9 |
Wind waves Height (m) Direction Period (s) | S 6 | SSE 12 | SSW 5 | SSW 5 | SSW 5 | SSW 5 | SSW 5 | SW 6 | SW 6 | SW 6 | SW 7 | SW 7 | WSW 7 | W 6 | W 6 | W 6 | W 6 | WNW 6 | ESE 4 | E 6 |
| kJ | 39 | 579 | 62 | 62 | 64 | 69 | 94 | 128 | 195 | 331 | 494 | 514 | 311 | 210 | 185 | 200 | 125 | 156 | 28 | 211 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 355 | 115 | 6 | 2 | 2 | 355 | 355 | 355 | 355 | 355 | 334 | 351 | 352 | 103 | 103 | 65 | 65 | 2 | 415 | 236 |
Best forecast wave conditions in Shizuoka | ||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||
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