Surf Forecasts:
How big are the waves at Katahama today (21 Oct):
- 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 9PM is: 2.1m 15s primary swell from a South-southeast direction (forecast issued at 02:00pm October 21). An open ocean swell of 1.1m 18s is not directed at the surf break, a second open ocean swell of 2.3m 7s 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) | - | - |
| 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 ForecastHeavy rain (total 22mm), heaviest during Sat morning. Warm (max 25°C on Wed afternoon, min 17°C on Thu night). Mainly fresh winds. | ||||||||||||||||||||
Wed 21 | Thursday 22 | Friday 23 | ||||||||||||||||||
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) | 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 | 635 | 882 | 1602 | 1776 | 1382 | 1572 | 1668 | 1640 | 1462 | 1266 | 1256 | 1115 | 1210 | 507 | 579 | 555 | 341 | 293 | 247 | 195 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-on | cross-on | cross | cross | cross-on | cross | cross-on | cross-on | cross-on | cross |
High Tide | 3:03PM1.57m | 3:05AM1.40m | 3:30PM1.61m | 3:50AM1.49m | 3:53PM1.64m | |||||||||||||||
Low Tide | 9:26PM0.80m | 9:11AM0.68m | 9:56PM0.66m | 9:49AM0.70m | ||||||||||||||||
 | |  | | |  |  | |  | | |  | | | | | |  | | | |
 | — | — | — | — | — | 5:56 | — | — | — | — | — | — | — | 5:58 | — | — | — | — | — | — |
 | — | 5:06 | — | — | — | — | — | — | — | 5:05 | — | — | — | — | — | — | — | 5:02 | — | — |
mm | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 25 | 25 | 24 | 23 | 22 | 20 | 20 | 24 | 23 | 21 | 19 | 19 | 18 | 17 | 17 | 18 | 19 | 19 | 19 |
Feels °C | 24 | 24 | 23 | 23 | 20 | 17 | 15 | 15 | 20 | 20 | 18 | 17 | 16 | 16 | 14 | 13 | 14 | 17 | 17 | 17 |
Swell 1 Height (m) Direction Period (s) | 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 14 | SSW 14 |
| kJ | 512 | 882 | 1602 | 1776 | 1382 | 1572 | 1668 | 1640 | 1462 | 1266 | 1256 | 1115 | 1210 | 1179 | 1155 | 1006 | 749 | 1421 | 1402 | 1224 |
Swell 2 Height (m) Direction Period (s) | S 16 | SSE 12 | S 20 | S 18 | S 18 | SE 9 | SE 9 | SE 9 | SE 9 | W 6 | W 5 | S 16 | W 5 | — | — | SSW 17 | SSW 16 | SSW 15 | SE 9 | ESE 9 |
| kJ | 635 | 451 | 190 | 758 | 402 | 41 | 40 | 40 | 42 | 89 | 35 | 264 | 5 | — | — | 297 | 457 | 544 | 42 | 54 |
Swell 3 Height (m) Direction Period (s) | — | — | — | SE 9 | SE 9 | — | — | SSE 7 | — | SE 10 | SE 10 | W 5 | — | — | — | — | — | — | — | — |
| kJ | — | — | — | 41 | 41 | — | — | 15 | — | 46 | 46 | 14 | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SSW 6 | SW 6 | SW 6 | SW 7 | SW 7 | WSW 6 | W 6 | W 6 | W 6 | WNW 6 | ESE 10 | E 6 | E 7 | E 7 | E 8 | E 8 | E 7 | E 7 | ESE 7 | ESE 7 |
| kJ | 134 | 229 | 402 | 509 | 308 | 209 | 171 | 184 | 144 | 170 | 125 | 138 | 413 | 507 | 579 | 555 | 341 | 293 | 247 | 195 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 382 | 355 | 351 | 352 | 115 | 103 | 103 | 65 | 65 | 2 | 415 | 94 | 150 | 137 | 137 | 135 | 85 | 104 | 103 | 103 |
Best forecast wave conditions in Shizuoka | ||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||
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