Surf Forecasts:
How big are the waves at Katahama today (20 Oct):
- Morning surf: Morning surf (20 Oct, local time) - 3.5ft (1.0m), 8s period with SE 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 2PM is: 1.0m 12s primary swell from a Southeast direction and 0.6m 15s secondary swell from a South-southeast direction, 1.1m 5s secondary swell from a South-southwest direction (forecast issued at 08:00am October 20). The wind direction is predicted to be cross-shore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Oct) | 3.5ft (1.0m) | 8s |
| 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 18°C on Thu night). Winds decreasing (fresh winds from the SW on Wed afternoon, light winds from the NNE by Thu afternoon). | ||||||||||||||||||||||
Tuesday 20 | Wednesday 21 | Thursday 22 | ||||||||||||||||||||
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) | SE 8 | SE 8 | SSE 13 | SE 12 | SE 12 | SE 13 | SE 13 | SE 12 | SSE 16 | SSE 13 | SSE 16 | SSE 16 | SSE 15 | SSE 15 | SSE 14 | S 15 | S 15 | S 14 | S 14 | S 13 | S 13 | S 13 |
Wave Graph  | ||||||||||||||||||||||
 kJ | 115 | 138 | 520 | 277 | 277 | 501 | 509 | 435 | 527 | 489 | 768 | 882 | 1602 | 1948 | 1382 | 1907 | 918 | 1686 | 1594 | 1422 | 1138 | 1006 |
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 | 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-on | cross-on |
High Tide | 2:30PM1.51m | 2:04AM1.31m | 3:03PM1.57m | 3:05AM1.40m | 3:30PM1.61m | |||||||||||||||||
Low Tide | 7:11AM0.67m | 8:49PM0.95m | 8:20AM0.67m | 9:26PM0.80m | 9:11AM0.68m | |||||||||||||||||
 |  | | |  |  | |  | | | | | | | | |  |  | | |  |  | |
 | 5:56 | — | — | — | — | — | — | 5:56 | — | — | — | — | — | — | — | 5:56 | — | — | — | — | — | — |
 | — | — | — | 5:07 | — | — | — | — | — | — | — | 5:06 | — | — | — | — | — | — | — | 5:05 | — | — |
mm | 1 | 1 | 1 | 1 | — | 1 | 1 | 1 | 1 | 1 | 2 | 1 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 24 | 26 | 26 | 25 | 24 | 24 | 23 | 23 | 25 | 25 | 25 | 25 | 25 | 24 | 23 | 20 | 19 | 22 | 23 | 20 | 19 |
Feels °C | 25 | 26 | 26 | 26 | 26 | 26 | 27 | 24 | 25 | 25 | 24 | 24 | 24 | 24 | 20 | 17 | 14 | 14 | 18 | 22 | 18 | 16 |
Swell 1 Height (m) Direction Period (s) | SE 8 | SE 8 | SSE 13 | SE 12 | SE 12 | SE 13 | SE 13 | SE 12 | SE 12 | SSE 13 | SSE 16 | SSE 16 | SSE 15 | SSE 15 | SSE 14 | S 15 | SSE 13 | S 14 | S 14 | S 13 | S 13 | S 13 |
| kJ | 115 | 138 | 520 | 277 | 277 | 501 | 509 | 435 | 325 | 489 | 768 | 882 | 1602 | 1948 | 1382 | 1907 | 799 | 1686 | 1594 | 1422 | 1138 | 1006 |
Swell 2 Height (m) Direction Period (s) | SSE 13 | SSE 13 | 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 | SSW 17 | S 16 |
| kJ | 70 | 118 | 144 | 188 | 165 | 110 | 225 | 286 | 527 | 454 | 319 | 451 | 192 | 792 | 520 | 41 | 918 | 41 | 39 | 74 | 493 | 659 |
Swell 3 Height (m) Direction Period (s) | SSE 18 | SSE 16 | S 22 | S 19 | SSE 20 | — | SSE 13 | — | — | — | — | — | S 19 | SE 9 | SE 9 | ESE 9 | SW 6 | — | — | SE 8 | W 5 | W 5 |
| kJ | 61 | 107 | 9 | 29 | 75 | — | 137 | — | — | — | — | — | 465 | 41 | 41 | 34 | 39 | — | — | 35 | 35 | 14 |
Wind waves Height (m) Direction Period (s) | — | S 5 | S 6 | SSW 5 | SSW 6 | SSW 6 | SSW 5 | SSW 5 | SSW 5 | SSW 5 | SSW 6 | SW 6 | SW 7 | SW 7 | WSW 6 | WSW 6 | WNW 5 | W 6 | W 6 | WNW 6 | ESE 10 | E 6 |
| kJ | — | 32 | 39 | 64 | 65 | 65 | 55 | 56 | 66 | 102 | 176 | 301 | 494 | 397 | 215 | 170 | 117 | 158 | 139 | 150 | 163 | 273 |
Nearest Offshore or Glassy | ||||||||||||||||||||||
Distance (km) | 2 | 2 | 334 | 94 | 103 | 2 | 2 | 2 | 2 | 355 | 355 | 355 | 334 | 351 | 352 | 103 | 132 | 65 | 415 | 6 | 415 | 94 |
Best forecast wave conditions in Shizuoka | ||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||
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