Surf Forecasts:
How big are the waves at Katahama today (09 Aug):
- Morning surf: Morning surf (09 Aug, local time) - 5ft (1.6m), 13s period with ESE swell.
- Afternoon surf: Afternoon surf (09 Aug, local time) - 5ft (1.5m), 13s period with E swell.
- Evening surf: Evening surf (09 Aug, local time) - 4.5ft (1.4m), 13s period with ESE swell.
The current surf forecast for Katahama at 4AM is: 1.5m 14s primary swell from a East-southeast direction (forecast issued at 08:00pm August 08). An open ocean swell of 1.7m 11s is not directed at the surf break. The wind direction is predicted to be glassy and the swell rating is 3.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (09 Aug) | 5ft (1.6m) | 13s |
| Afternoon (09 Aug) | 5ft (1.5m) | 13s |
| Evening (09 Aug) | 4.5ft (1.4m) | 13s |
Table - waves today at Katahama. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 14mm), heaviest on Sun night. Warm (max 28°C on Sun morning, min 23°C on Mon night). Wind will be generally light. | ||||||||||||||||||
Sat 8 | Sunday 9 | Monday 10 | ||||||||||||||||
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) | ESE 12 | ESE 13 | ESE 13 | ESE 14 | ESE 14 | ESE 13 | ESE 13 | E 13 | ESE 13 | ESE 13 | E 12 | E 12 | E 12 | E 12 | E 12 | E 12 | E 12 | E 12 |
Wave Graph  | ||||||||||||||||||
 kJ | 344 | 522 | 594 | 838 | 780 | 849 | 836 | 799 | 679 | 648 | 593 | 497 | 584 | 575 | 556 | 538 | 538 | 529 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | glassy | glassy | glassy | glassy | on | cross-on | cross-on | cross-on | glassy | glassy | glassy | glassy | glassy | cross-on | cross-on | cross-on | glassy |
High Tide | 4:11PM1.39m | 1:39AM1.44m | 4:46PM1.49m | 2:47AM1.48m | 5:12PM1.55m | |||||||||||||
Low Tide | 8:50PM1.25m | 9:22AM0.46m | 10:05PM1.19m | 10:08AM0.39m | ||||||||||||||
 |  | |  | | | | | | |  | | | | | |  | | |
 | — | — | — | 5:01 | — | — | — | — | — | — | — | 5:03 | — | — | — | — | — | — |
 | 6:43 | — | — | — | — | — | — | — | 6:42 | — | — | — | — | — | — | — | 6:40 | — |
mm | — | — | — | — | — | — | — | — | — | — | 2 | 3 | — | — | — | — | 1 | 1 |
Temp °C | 27 | 27 | 26 | 25 | 25 | 27 | 28 | 28 | 27 | 26 | 25 | 25 | 25 | 26 | 27 | 27 | 26 | 25 |
Feels °C | 31 | 32 | 32 | 29 | 29 | 31 | 31 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 29 | 29 | 29 | 29 |
Swell 1 Height (m) Direction Period (s) | SSW 11 | SSW 11 | SSW 11 | SSW 11 | SSW 11 | SSW 11 | ESE 13 | E 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SSW 11 | SSW 11 | E 12 | E 12 | E 12 |
| kJ | 813 | 757 | 668 | 668 | 638 | 674 | 836 | 799 | 657 | 712 | 736 | 511 | 551 | 651 | 617 | 538 | 538 | 529 |
Swell 2 Height (m) Direction Period (s) | ESE 12 | ESE 13 | ESE 13 | ESE 14 | ESE 14 | ESE 13 | SW 12 | SW 12 | ESE 13 | ESE 13 | E 12 | E 12 | E 12 | E 12 | E 12 | SSW 10 | SW 11 | SSW 10 |
| kJ | 344 | 522 | 594 | 838 | 780 | 849 | 463 | 599 | 679 | 648 | 593 | 497 | 584 | 575 | 556 | 265 | 297 | 231 |
Swell 3 Height (m) Direction Period (s) | E 9 | SE 16 | — | SW 13 | SE 12 | SE 12 | S 10 | S 11 | S 11 | S 11 | SSW 11 | SSW 12 | S 11 | SSE 12 | SSE 12 | SW 11 | S 10 | SW 12 |
| kJ | 27 | 10 | — | 113 | 5 | 5 | 270 | 229 | 229 | 229 | 217 | 349 | 198 | 13 | 13 | 233 | 133 | 259 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 208 | 2 | 2 | 2 | 2 | 6 | 85 | 85 | 6 | 2 | 2 | 2 | 2 | 2 | 132 | 65 | 6 | 2 |
Best forecast wave conditions in Shizuoka | ||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||
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