Surf Forecasts:
How big are the waves at Katahama today (21 Oct):
- Morning surf: Morning surf (21 Oct, local time) - 4.5ft (1.3m), 13s period with SSE swell.
- Afternoon surf: Afternoon surf (21 Oct, local time) - 4.5ft (1.3m), 16s period with SSE swell.
- Evening surf: Evening surf (21 Oct, local time) - 7ft (2.1m), 15s period with SSE swell.
The current surf forecast for Katahama at 5PM is: 1.7m 16s primary swell from a South-southeast direction and 0.5m 20s secondary swell from a South direction (forecast issued at 08:00am October 21). An open ocean swell of 2.1m 6s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Oct) | 4.5ft (1.3m) | 13s |
| Afternoon (21 Oct) | 4.5ft (1.3m) | 16s |
| Evening (21 Oct) | 7ft (2.1m) | 15s |
Table - waves today at Katahama. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 3mm), mostly falling on Wed morning. Warm (max 25°C on Wed morning, min 16°C on Fri morning). Mainly fresh winds. | ||||||||||||||||||||||
Wednesday 21 | Thursday 22 | Friday 23 | ||||||||||||||||||||
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) | SSE 16 | SSE 13 | S 16 | SSE 16 | SSE 15 | SSE 15 | SSE 14 | S 14 | S 14 | S 14 | S 14 | S 13 | S 13 | S 14 | S 14 | E 7 | E 8 | E 8 | E 7 | E 7 | ESE 7 | ESE 7 |
Wave Graph  | ||||||||||||||||||||||
 kJ | 527 | 489 | 635 | 882 | 1602 | 1776 | 1382 | 1599 | 1668 | 1668 | 1462 | 1266 | 1266 | 1115 | 1210 | 493 | 569 | 553 | 338 | 326 | 261 | 220 |
Wind (km/h) | ||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross-on | cross-on | cross |
High Tide | 3:03PM1.57m | 3:05AM1.40m | 3:30PM1.61m | 3:50AM1.49m | 3:53PM1.64m | |||||||||||||||||
Low Tide | 8:20AM0.67m | 9:26PM0.80m | 9:11AM0.68m | 9:56PM0.66m | 9:49AM0.70m | |||||||||||||||||
 | | |  |  |  | | | |  | |  | |  | | | | | | | | | |
 | 5:56 | — | — | — | — | — | — | 5:56 | — | — | — | — | — | — | — | 5:58 | — | — | — | — | — | — |
 | — | — | — | 5:06 | — | — | — | — | — | — | — | 5:05 | — | — | — | — | — | — | — | 5:02 | — | — |
mm | 1 | 1 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 24 | 25 | 25 | 25 | 25 | 23 | 23 | 21 | 21 | 24 | 24 | 22 | 19 | 19 | 18 | 17 | 16 | 17 | 19 | 19 | 18 |
Feels °C | 25 | 24 | 24 | 24 | 24 | 24 | 20 | 19 | 16 | 16 | 19 | 21 | 20 | 17 | 17 | 15 | 13 | 11 | 13 | 16 | 17 | 15 |
Swell 1 Height (m) Direction Period (s) | SE 12 | SSE 13 | SSE 13 | SSE 16 | SSE 15 | SSE 15 | SSE 14 | S 14 | S 14 | S 14 | S 14 | S 13 | S 13 | S 14 | S 14 | S 14 | S 13 | S 13 | S 13 | SSW 15 | SSW 15 | SSW 14 |
| kJ | 325 | 489 | 512 | 882 | 1602 | 1776 | 1382 | 1599 | 1668 | 1668 | 1462 | 1266 | 1266 | 1115 | 1210 | 1179 | 1155 | 905 | 915 | 1641 | 1613 | 1591 |
Swell 2 Height (m) Direction Period (s) | SSE 16 | SSE 16 | S 16 | SSE 12 | S 20 | S 18 | S 18 | SE 9 | SW 6 | SE 9 | — | SE 10 | W 5 | S 16 | W 5 | — | SSW 15 | SSW 16 | SSW 16 | SSW 15 | — | — |
| kJ | 527 | 454 | 635 | 359 | 190 | 758 | 402 | 41 | 61 | 40 | — | 46 | 46 | 339 | 2 | — | 574 | 390 | 568 | 805 | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | SE 9 | SE 9 | SSE 7 | — | — | — | SE 9 | SE 10 | W 5 | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | 41 | 41 | 28 | — | — | — | 41 | 46 | 14 | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SSW 5 | SSW 5 | SSW 6 | SW 6 | SW 7 | SW 7 | SW 7 | WSW 6 | W 5 | W 6 | W 6 | W 6 | ESE 10 | E 5 | E 7 | E 7 | E 8 | E 8 | E 7 | E 7 | ESE 7 | ESE 7 |
| kJ | 72 | 90 | 143 | 284 | 483 | 480 | 253 | 207 | 110 | 163 | 143 | 89 | 154 | 147 | 479 | 493 | 569 | 553 | 338 | 326 | 261 | 220 |
Nearest Offshore or Glassy | ||||||||||||||||||||||
Distance (km) | 355 | 355 | 382 | 355 | 351 | 352 | 352 | 103 | 103 | 65 | 65 | 2 | 13 | 415 | 137 | 137 | 137 | 132 | 130 | 135 | 103 | 13 |
Best forecast wave conditions in Shizuoka | ||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||
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