Surf Forecasts:
How big are the waves at Katahama today (20 Oct):
- Morning surf: Morning surf (20 Oct, local time) - 2ft (0.6m), 13s period with SSE swell.
- Afternoon surf: Afternoon surf (20 Oct, local time) - 3.5ft (1.0m), 12s period with SE swell.
- Evening surf: Evening surf (20 Oct, local time) - 4ft (1.2m), 13s period with SE swell.
The current surf forecast for Katahama at 2AM is: 1.1m 8s primary swell from a Southeast direction and 0.4m 15s secondary swell from a Southeast direction (forecast issued at 08:00pm October 19). The wind direction is predicted to be cross-offshore and the swell rating is 2.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Oct) | 2ft (0.6m) | 13s |
| Afternoon (20 Oct) | 3.5ft (1.0m) | 12s |
| Evening (20 Oct) | 4ft (1.2m) | 13s |
Table - waves today at Katahama. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 11mm), heaviest on Wed morning. Warm (max 26°C on Tue morning, min 19°C on Thu morning). Winds increasing (light winds from the WNW on Mon night, fresh winds from the SW by Wed afternoon). | ||||||||||||||||||
Mon 19 | Tuesday 20 | Wednesday 21 | ||||||||||||||||
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) | SE 8 | SE 9 | SE 9 | SE 8 | SE 8 | SSE 13 | SE 13 | SE 12 | SE 12 | SE 13 | SE 13 | SE 12 | SSE 16 | SSE 13 | S 16 | SSE 16 | SSE 16 | SSE 15 |
Wave Graph  | ||||||||||||||||||
 kJ | 133 | 148 | 168 | 156 | 135 | 118 | 325 | 277 | 277 | 501 | 509 | 435 | 527 | 489 | 635 | 1029 | 1818 | 1801 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | 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 | cross-off | cross | cross-off | cross-off |
High Tide | 00:16AM1.24m | 2:30PM1.51m | 2:04AM1.31m | 3:03PM1.57m | ||||||||||||||
Low Tide | 7:47PM1.11m | 7:11AM0.67m | 8:49PM0.95m | 8:20AM0.67m | ||||||||||||||
 |  |  | |  |  | | | | |  |  | | | | | | | |
 | — | — | — | 5:56 | — | — | — | — | — | — | — | 5:56 | — | — | — | — | — | — |
 | — | — | — | — | — | — | — | 5:07 | — | — | — | — | — | — | — | 5:06 | — | — |
mm | — | — | — | — | 1 | 1 | 1 | 1 | — | — | 1 | 1 | 1 | 1 | 2 | 1 | — | — |
Temp °C | 23 | 23 | 23 | 22 | 22 | 24 | 26 | 26 | 24 | 24 | 24 | 23 | 23 | 24 | 25 | 25 | 25 | 24 |
Feels °C | 23 | 24 | 24 | 24 | 24 | 26 | 26 | 26 | 25 | 26 | 27 | 25 | 25 | 24 | 24 | 23 | 24 | 22 |
Swell 1 Height (m) Direction Period (s) | SE 8 | SE 9 | SE 9 | SE 8 | SE 8 | SE 8 | SE 13 | SE 12 | SE 12 | SE 13 | SE 13 | SE 12 | SE 12 | SSE 13 | SSE 13 | SSE 16 | SSE 16 | SSE 15 |
| kJ | 133 | 148 | 168 | 156 | 135 | 102 | 325 | 277 | 277 | 501 | 509 | 435 | 325 | 489 | 512 | 1029 | 1818 | 1801 |
Swell 2 Height (m) Direction Period (s) | SSE 16 | SE 16 | SE 15 | SE 15 | SSE 13 | SSE 13 | SSE 16 | SSE 15 | SSE 14 | SSE 18 | S 18 | SSE 17 | SSE 16 | SSE 16 | S 16 | SSE 12 | SSE 11 | S 18 |
| kJ | 25 | 64 | 56 | 54 | 70 | 118 | 144 | 188 | 165 | 110 | 225 | 286 | 527 | 454 | 635 | 390 | 215 | 733 |
Swell 3 Height (m) Direction Period (s) | E 9 | E 9 | E 9 | SSE 18 | SSE 18 | SSE 16 | S 22 | S 19 | SSE 20 | — | SSE 13 | — | — | — | — | — | — | SE 10 |
| kJ | 2 | 2 | 2 | 32 | 61 | 107 | 9 | 29 | 75 | — | 137 | — | — | — | — | — | — | 45 |
Wind waves Height (m) Direction Period (s) | WSW 3 | — | — | — | SSW 5 | SSW 5 | SSW 5 | SSW 6 | SSW 5 | SSW 5 | SSW 5 | SSW 5 | SSW 5 | SSW 5 | SSW 6 | SSW 6 | SW 7 | SW 7 |
| kJ | 4 | — | — | — | 32 | 51 | 90 | 101 | 78 | 56 | 54 | 54 | 44 | 67 | 138 | 309 | 559 | 527 |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 355 | 2 | 2 | 2 | 2 | 2 | 65 | 355 | 2 | 2 | 2 | 2 | 2 | 355 | 382 | 355 | 334 | 351 |
Best forecast wave conditions in Shizuoka | ||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||
Header Global | ||||||||||||||||||
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