Surf Forecasts:
How big are the waves at Katahama today (15 Aug):
- Morning surf: Morning surf (15 Aug, local time) - 4.5ft (1.4m), 10s period with E swell.
- Afternoon surf: Afternoon surf (15 Aug, local time) - 5ft (1.5m), 10s period with E swell.
- Evening surf: Evening surf (15 Aug, local time) - 4.5ft (1.4m), 10s period with ESE swell.
The current surf forecast for Katahama at 4PM is: 1.5m 10s primary swell from a East direction and 0.3m 8s secondary swell from a South-southeast direction (forecast issued at 08:00am August 15). An open ocean swell of 0.9m 10s is not directed at the surf break. The wind direction is predicted to be onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (15 Aug) | 4.5ft (1.4m) | 10s |
| Afternoon (15 Aug) | 5ft (1.5m) | 10s |
| Evening (15 Aug) | 4.5ft (1.4m) | 10s |
Table - waves today at Katahama. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 6mm), mostly falling on Sat morning. Warm (max 28°C on Sat afternoon, min 24°C on Sat night). Wind will be generally light. | ||||||||||||||||||||||
Saturday 15 | Sunday 16 | Monday 17 | ||||||||||||||||||||
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 10 | E 10 | E 6 | E 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | E 10 | E 10 | E 10 | E 10 | ESE 9 | E 9 | E 9 | E 8 | E 8 | E 8 | ESE 9 | ESE 9 | ESE 8 | ESE 8 |
Wave Graph  | ||||||||||||||||||||||
 kJ | 325 | 369 | 158 | 441 | 386 | 356 | 276 | 294 | 158 | 250 | 240 | 240 | 158 | 162 | 151 | 113 | 140 | 140 | 129 | 126 | 127 | 125 |
Wind (km/h) | ||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | on | on | cross-on | cross-on | cross | cross | cross | cross-on | on | on | cross-on |
High Tide | 6:13AM1.71m | 6:57PM1.75m | 6:53AM1.68m | 7:24PM1.76m | 7:35AM1.61m | 7:54PM1.75m | ||||||||||||||||
Low Tide | 12:39PM0.39m | 1:04AM0.65m | 1:08PM0.48m | 1:41AM0.59m | 1:39PM0.59m | |||||||||||||||||
 | | |  | |  |  | | | |  | |  |  | | | | | | | | | |
 | 5:05 | — | — | — | — | — | — | 5:07 | — | — | — | — | — | — | — | 5:07 | — | — | — | — | — | — |
 | — | — | — | — | 6:36 | — | — | — | — | — | — | — | 6:35 | — | — | — | — | — | — | — | 6:32 | — |
mm | 1 | 2 | 2 | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 26 | 27 | 28 | 26 | 26 | 25 | 25 | 24 | 26 | 27 | 27 | 27 | 26 | 25 | 25 | 25 | 26 | 27 | 27 | 27 | 26 |
Feels °C | 26 | 27 | 28 | 28 | 26 | 27 | 27 | 27 | 26 | 26 | 27 | 27 | 28 | 28 | 27 | 27 | 27 | 26 | 28 | 28 | 29 | 28 |
Swell 1 Height (m) Direction Period (s) | SSW 9 | SSW 10 | SSW 10 | SSW 10 | SSW 10 | SSW 9 | SSW 9 | SSW 9 | E 10 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SSW 8 | SSW 8 | SSW 8 | SSW 8 | SSW 8 | SSW 8 |
| kJ | 67 | 149 | 143 | 137 | 129 | 116 | 86 | 84 | 158 | 77 | 61 | 62 | 79 | 80 | 82 | 80 | 57 | 55 | 54 | 54 | 38 | 37 |
Swell 2 Height (m) Direction Period (s) | S 11 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 12 | SW 8 | SE 12 | SSW 9 | ESE 9 | E 9 | ESE 9 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 |
| kJ | 61 | 13 | 14 | 13 | 13 | 14 | 11 | 22 | 84 | 29 | 43 | 28 | 31 | 30 | 31 | 42 | 19 | 30 | 18 | 18 | 18 | 18 |
Swell 3 Height (m) Direction Period (s) | SSE 8 | SE 10 | SE 10 | SE 10 | SSE 12 | SSE 8 | SE 12 | SW 10 | SW 8 | SE 12 | SW 9 | SW 8 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | E 9 | S 16 | S 16 | S 16 | SW 8 |
| kJ | 24 | 16 | 17 | 16 | 14 | 6 | 22 | 14 | 25 | 21 | 27 | 24 | 17 | 8 | 8 | 17 | 8 | 6 | 5 | 5 | 5 | 3 |
Wind waves Height (m) Direction Period (s) | E 10 | E 10 | E 6 | E 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 5 | E 10 | E 10 | E 10 | ESE 9 | E 9 | E 9 | E 8 | E 8 | E 8 | ESE 9 | ESE 9 | ESE 8 | ESE 8 |
| kJ | 325 | 369 | 158 | 441 | 386 | 356 | 276 | 294 | 36 | 250 | 240 | 240 | 158 | 162 | 151 | 113 | 140 | 140 | 129 | 126 | 127 | 125 |
Nearest Offshore or Glassy | ||||||||||||||||||||||
Distance (km) | 351 | 104 | 85 | 104 | 104 | 104 | 104 | 132 | 124 | 124 | 137 | 104 | 104 | 85 | 104 | 103 | 13 | 104 | 104 | 104 | 85 | 104 |
Best forecast wave conditions in Shizuoka | ||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||
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