Surf Forecasts:
How big are the waves at Katahama today (10 Aug):
- Morning surf: Morning surf (10 Aug, local time) - 4.5ft (1.4m), 12s period with E swell.
- Afternoon surf: Afternoon surf (10 Aug, local time) - 5ft (1.5m), 12s period with E swell.
- Evening surf: Evening surf (10 Aug, local time) - 4.5ft (1.4m), 11s period with E swell.
The current surf forecast for Katahama at 1PM is: 1.4m 12s primary swell from a East direction and 0.4m 4s secondary swell from a East direction (forecast issued at 08:00am August 10). An open ocean swell of 1.5m 11s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (10 Aug) | 4.5ft (1.4m) | 12s |
| Afternoon (10 Aug) | 5ft (1.5m) | 12s |
| Evening (10 Aug) | 4.5ft (1.4m) | 11s |
Table - waves today at Katahama. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 26mm), heaviest during Mon night. Warm (max 27°C on Mon morning, min 23°C on Mon night). Winds increasing (calm on Mon morning, fresh winds from the ENE by Wed afternoon). | ||||||||||||||||||||||
Monday 10 | Tuesday 11 | Wednesday 12 | ||||||||||||||||||||
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 12 | E 12 | E 12 | E 12 | E 12 | E 11 | E 11 | E 11 | E 11 | E 10 | E 11 | E 12 | E 12 | E 12 | E 12 | E 12 | E 11 | E 11 | E 10 | E 5 | E 6 | E 6 |
Wave Graph  | ||||||||||||||||||||||
 kJ | 505 | 584 | 556 | 628 | 538 | 502 | 526 | 517 | 434 | 410 | 482 | 454 | 380 | 393 | 278 | 214 | 116 | 108 | 346 | 117 | 207 | 152 |
Wind (km/h) | ||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | cross | cross | cross-on | on | on | glassy | on | cross-on | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross |
High Tide | 5:12PM1.55m | 3:38AM1.54m | 5:33PM1.60m | 4:20AM1.60m | 5:51PM1.64m | |||||||||||||||||
Low Tide | 10:08AM0.39m | 10:43PM1.12m | 10:44AM0.34m | 11:10PM1.03m | 11:15AM0.31m | |||||||||||||||||
 |  | | | |  | | | | |  | |  |  | | | | | | | |  | |
 | 5:03 | — | — | — | — | — | — | 5:03 | — | — | — | — | — | — | — | 5:03 | — | — | — | — | — | — |
 | — | — | — | — | 6:40 | — | — | — | — | — | — | — | 6:39 | — | — | — | — | — | — | — | 6:38 | — |
mm | 1 | — | 1 | 1 | 2 | 3 | 3 | 2 | 3 | 1 | 1 | 1 | — | 1 | 1 | 2 | 1 | — | — | 1 | — | — |
Temp °C | 25 | 27 | 27 | 27 | 26 | 25 | 24 | 23 | 23 | 23 | 24 | 24 | 25 | 25 | 25 | 23 | 23 | 23 | 24 | 24 | 25 | 24 |
Feels °C | 29 | 32 | 29 | 29 | 30 | 29 | 28 | 27 | 26 | 25 | 25 | 25 | 27 | 28 | 28 | 24 | 23 | 21 | 22 | 21 | 23 | 23 |
Swell 1 Height (m) Direction Period (s) | SW 12 | SSW 11 | SSW 11 | E 12 | E 12 | E 11 | E 11 | E 11 | E 11 | E 10 | E 11 | E 12 | E 12 | E 12 | E 12 | SSW 10 | SSW 10 | SSW 10 | SSW 11 | SSW 10 | SSW 10 | SSW 10 |
| kJ | 551 | 651 | 553 | 628 | 538 | 502 | 526 | 517 | 434 | 410 | 482 | 454 | 380 | 393 | 278 | 176 | 184 | 202 | 202 | 260 | 216 | 212 |
Swell 2 Height (m) Direction Period (s) | E 12 | E 12 | E 12 | SSW 10 | SW 11 | SSW 10 | SW 11 | SW 11 | SSW 10 | SSW 11 | SSW 11 | SSW 10 | SE 13 | SSW 10 | SSW 10 | E 12 | E 11 | E 11 | SW 10 | SE 13 | SE 12 | SE 12 |
| kJ | 505 | 584 | 556 | 222 | 297 | 214 | 216 | 220 | 191 | 202 | 198 | 187 | 7 | 187 | 232 | 214 | 116 | 108 | 100 | 7 | 6 | 6 |
Swell 3 Height (m) Direction Period (s) | S 11 | SSE 12 | SE 12 | SW 11 | S 10 | SW 11 | SSW 10 | SSW 11 | SW 11 | SW 11 | SW 11 | SW 11 | SE 13 | SW 10 | SW 5 | SW 5 | SW 11 | SW 11 | SE 13 | — | — | — |
| kJ | 198 | 13 | 5 | 233 | 133 | 233 | 184 | 198 | 168 | 162 | 159 | 159 | 7 | 124 | 35 | 26 | 119 | 116 | 7 | — | — | — |
Wind waves Height (m) Direction Period (s) | — | ENE 3 | E 4 | — | — | ESE 3 | E 11 | — | E 10 | — | — | SW 2 | SW 10 | SW 4 | WSW 5 | — | SE 4 | ESE 5 | E 10 | E 5 | E 6 | E 6 |
| kJ | — | 4 | 5 | — | — | 3 | 843 | — | 615 | — | — | 1 | 433 | 26 | 44 | — | 12 | 52 | 346 | 117 | 207 | 152 |
Nearest Offshore or Glassy | ||||||||||||||||||||||
Distance (km) | 2 | 2 | 6 | 6 | 6 | 13 | 13 | 2 | 94 | 94 | 6 | 94 | 6 | 6 | 6 | 94 | 334 | 208 | 103 | 103 | 103 | 124 |
Best forecast wave conditions in Shizuoka | ||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||
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