Surf Forecasts:
How big are the waves at Katahama today (11 Aug):
- Morning surf: Morning surf (11 Aug, local time) - 4.5ft (1.3m), 10s period with E swell.
- Afternoon surf: Afternoon surf (11 Aug, local time) - 4ft (1.2m), 12s period with E swell.
- Evening surf: Evening surf (11 Aug, local time) - 3.5ft (1.0m), 12s period with E swell.
The current surf forecast for Katahama at 11AM is: 1.3m 11s primary swell from a East direction (forecast issued at 02:00am August 11). An open ocean swell of 0.9m 11s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 Aug) | 4.5ft (1.3m) | 10s |
| Afternoon (11 Aug) | 4ft (1.2m) | 12s |
| Evening (11 Aug) | 3.5ft (1.0m) | 12s |
Table - waves today at Katahama. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 12mm), heaviest on Tue night. Warm (max 29°C on Tue afternoon, min 22°C on Tue night). Winds decreasing (fresh winds from the NE on Wed afternoon, light winds from the NNE by Thu night). | ||||||||||||||||||||||||
Tuesday 11 | Wednesday 12 | Thursday 13 | ||||||||||||||||||||||
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 | 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 11 | E 11 | E 11 | E 10 | E 11 | E 12 | E 11 | E 12 | E 12 | E 11 | ESE 11 | E 5 | E 5 | E 6 | ESE 6 | ESE 6 | ESE 5 | E 9 | E 9 | E 9 | E 10 | E 9 | E 10 | E 11 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 459 | 517 | 434 | 361 | 411 | 380 | 308 | 268 | 217 | 155 | 249 | 115 | 121 | 163 | 201 | 159 | 106 | 60 | 60 | 62 | 87 | 111 | 128 | 224 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross-on | cross-on | cross-on | cross | cross-off | cross-off | on | cross-on | cross-on | cross | cross-on | cross | cross | cross | cross | cross | cross | cross | cross | on | on | cross-on |
High Tide | 3:38AM1.54m | 5:33PM1.60m | 4:20AM1.60m | 5:51PM1.64m | 4:58AM1.66m | 6:11PM1.68m | ||||||||||||||||||
Low Tide | 10:43PM1.12m | 10:44AM0.34m | 11:10PM1.03m | 11:15AM0.31m | 11:35PM0.94m | 11:43AM0.31m | ||||||||||||||||||
 | |  | |  | |  |  |  |  |  |  | | | | | | | |  | | | | | |
 | — | 5:03 | — | — | — | — | — | — | — | 5:03 | — | — | — | — | — | — | — | 5:05 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 6:39 | — | — | — | — | — | — | — | 6:38 | — | — | — | — | — | — | — | 6:37 | — |
mm | 3 | 3 | 2 | 1 | — | — | — | — | — | 3 | 2 | 1 | 1 | 1 | — | — | — | — | — | — | — | 1 | 1 | 1 |
Temp °C | 25 | 24 | 23 | 24 | 26 | 29 | 28 | 27 | 26 | 23 | 22 | 23 | 24 | 23 | 25 | 24 | 24 | 24 | 24 | 26 | 27 | 28 | 26 | 26 |
Feels °C | 28 | 27 | 24 | 26 | 29 | 30 | 28 | 30 | 29 | 23 | 21 | 22 | 22 | 21 | 24 | 22 | 23 | 24 | 24 | 26 | 28 | 30 | 28 | 29 |
Swell 1 Height (m) Direction Period (s) | E 11 | E 11 | E 11 | E 10 | E 11 | E 12 | E 11 | E 12 | SW 6 | SSW 10 | SSW 10 | SSW 10 | SSW 11 | SSW 10 | SSW 10 | SSW 10 | SW 10 | SSW 10 | SSW 10 | SSW 10 | SSW 10 | SSW 10 | SSW 9 | E 11 |
| kJ | 459 | 517 | 434 | 361 | 411 | 380 | 308 | 268 | 60 | 176 | 184 | 187 | 202 | 220 | 216 | 212 | 122 | 208 | 204 | 204 | 183 | 172 | 168 | 224 |
Swell 2 Height (m) Direction Period (s) | SW 11 | SW 11 | SSW 10 | SSW 11 | SSW 11 | SSW 10 | SE 13 | SSW 10 | SSW 10 | WSW 5 | SW 11 | SW 11 | SW 10 | SE 13 | SE 13 | SE 12 | SSW 10 | E 9 | E 9 | E 9 | E 10 | E 9 | E 10 | SSW 9 |
| kJ | 220 | 220 | 191 | 202 | 198 | 187 | 7 | 187 | 184 | 37 | 119 | 76 | 82 | 6 | 6 | 6 | 102 | 60 | 60 | 62 | 87 | 111 | 128 | 161 |
Swell 3 Height (m) Direction Period (s) | SSW 10 | SSW 11 | SW 11 | SW 11 | SW 11 | SW 11 | SE 13 | SW 10 | E 12 | E 11 | W 5 | SE 13 | SE 13 | SE 13 | — | — | SE 12 | S 6 | — | SE 12 | SE 12 | SE 12 | SSE 12 | SSE 12 |
| kJ | 184 | 198 | 168 | 162 | 159 | 159 | 7 | 102 | 217 | 155 | 11 | 7 | 7 | 6 | — | — | 6 | 9 | — | 6 | 6 | 5 | 14 | 14 |
Wind waves Height (m) Direction Period (s) | E 11 | E 11 | — | — | — | WSW 3 | SW 10 | WSW 5 | WSW 6 | — | ESE 11 | E 5 | E 5 | E 6 | ESE 6 | ESE 6 | ESE 5 | E 5 | E 5 | E 5 | E 5 | E 4 | E 4 | — |
| kJ | 757 | 730 | — | — | — | 7 | 651 | 105 | 101 | — | 249 | 115 | 121 | 163 | 201 | 159 | 106 | 52 | 37 | 34 | 28 | 19 | 8 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 150 | 103 | 65 | 94 | 6 | 378 | 2 | 2 | 104 | 94 | 150 | 103 | 104 | 103 | 103 | 103 | 124 | 13 | 13 | 13 | 145 | 104 | 104 | 103 |
Best forecast wave conditions in Shizuoka | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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