Surf Forecasts:
How big are the waves at Katahama today (17 Sep):
- Morning surf: Morning surf (17 Sep, local time) - 3.5ft (1.1m), 7s period with E swell.
- Afternoon surf: Afternoon surf (17 Sep, local time) - 5ft (1.5m), 7s period with E swell.
- Evening surf: Evening surf (17 Sep, local time) - 6ft (1.9m), 6s period with E swell.
The current surf forecast for Katahama at 2PM is: 1.4m 7s primary swell from a East direction and 0.3m 12s secondary swell from a East direction, 0.1m 9s secondary swell from a Southeast direction (forecast issued at 08:00am September 17). The wind direction is predicted to be cross-shore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Sep) | 3.5ft (1.1m) | 7s |
| Afternoon (17 Sep) | 5ft (1.5m) | 7s |
| Evening (17 Sep) | 6ft (1.9m) | 6s |
Table - waves today at Katahama. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 2mm), mostly falling on Sat night. Warm (max 26°C on Sat morning, min 21°C on Thu night). Mainly fresh winds. | ||||||||||||||||||||||
Thursday 17 | Friday 18 | Saturday 19 | ||||||||||||||||||||
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) | E 7 | E 7 | E 7 | E 7 | E 7 | E 6 | S 9 | E 11 | SSE 9 | SE 12 | SE 12 | SSE 11 | SSE 11 | SE 14 | SE 14 | SE 13 | SE 14 | SE 14 | ESE 14 | ESE 13 | ESE 13 | ESE 13 |
Wave Graph  | ||||||||||||||||||||||
 kJ | 103 | 124 | 168 | 229 | 260 | 299 | 2 | 23 | 7 | 6 | 6 | 13 | 13 | 66 | 265 | 778 | 1595 | 2458 | 3531 | 3531 | 3611 | 3559 |
Wind (km/h) | ||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-on | cross | cross | cross | cross | cross | cross | cross | cross | cross-on | cross | cross | cross | cross-off | cross-off | cross | cross | cross | cross | cross |
High Tide | 8:59AM1.43m | 8:10PM1.64m | 10:22AM1.32m | 8:46PM1.52m | 1:24PM1.31m | |||||||||||||||||
Low Tide | 2:10PM1.01m | 3:29AM0.55m | 2:53PM1.15m | 4:47AM0.62m | 4:45PM1.27m | |||||||||||||||||
 | |  | |  | | | | | | | | | | | | | | | |  |  | |
 | 5:30 | — | — | — | — | — | — | 5:31 | — | — | — | — | — | — | — | 5:31 | — | — | — | — | — | — |
 | — | — | — | 5:52 | — | — | — | — | — | — | — | 5:51 | — | — | — | — | — | — | — | 5:49 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 23 | 24 | 24 | 24 | 23 | 21 | 21 | 21 | 22 | 24 | 25 | 25 | 24 | 23 | 22 | 22 | 25 | 26 | 26 | 25 | 25 |
Feels °C | 22 | 23 | 23 | 23 | 22 | 20 | 18 | 18 | 18 | 17 | 20 | 22 | 22 | 22 | 21 | 21 | 21 | 23 | 24 | 25 | 23 | 23 |
Swell 1 Height (m) Direction Period (s) | E 12 | E 12 | E 12 | E 12 | E 12 | S 9 | S 9 | E 11 | SSE 9 | SE 9 | SE 12 | SSE 11 | SSE 11 | SE 14 | SE 14 | SE 13 | SE 14 | SE 14 | ESE 14 | ESE 13 | ESE 13 | ESE 13 |
| kJ | 44 | 44 | 44 | 25 | 25 | 1 | 2 | 23 | 7 | 3 | 6 | 13 | 13 | 66 | 265 | 778 | 1595 | 2458 | 3531 | 3531 | 3611 | 3559 |
Swell 2 Height (m) Direction Period (s) | E 16 | S 9 | SE 9 | S 9 | S 9 | — | — | SE 9 | S 13 | SE 12 | S 9 | S 11 | SE 15 | S 10 | S 10 | S 10 | S 10 | — | — | — | — | S 9 |
| kJ | 5 | 2 | 3 | 2 | 2 | — | — | 3 | 3 | 6 | 2 | 2 | 9 | 2 | 2 | 2 | 2 | — | — | — | — | 2 |
Swell 3 Height (m) Direction Period (s) | S 7 | — | S 9 | S 7 | S 7 | — | — | — | — | — | — | — | S 11 | S 10 | — | — | — | — | — | — | — | — |
| kJ | 1 | — | 2 | 1 | 1 | — | — | — | — | — | — | — | 2 | 2 | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | E 7 | E 7 | E 7 | E 7 | E 7 | E 6 | E 7 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 |
| kJ | 103 | 124 | 168 | 229 | 260 | 299 | 358 | 318 | 343 | 351 | 320 | 356 | 382 | 413 | 343 | 264 | 235 | 264 | 637 | 557 | 433 | 374 |
Nearest Offshore or Glassy | ||||||||||||||||||||||
Distance (km) | 13 | 13 | 13 | 13 | 13 | 13 | 334 | 334 | 334 | 334 | 415 | 355 | 355 | 334 | 94 | 94 | 13 | 94 | 373 | 373 | 352 | 352 |
Best forecast wave conditions in Shizuoka | ||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||
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