Surf Forecasts:
How big are the waves at Katahama today (16 Aug):
- Morning surf: Morning surf (16 Aug, local time) - 2.5ft (0.8m), 10s period with E swell.
- Afternoon surf: Afternoon surf (16 Aug, local time) - 4ft (1.2m), 5s period with E swell.
- Evening surf: Evening surf (16 Aug, local time) - 3.5ft (1.0m), 9s period with E swell.
The current surf forecast for Katahama at 5AM is: 0.9m 10s primary swell from a East direction and 0.9m 5s secondary swell from a East-southeast direction (forecast issued at 08:00pm August 15). An open ocean swell of 0.7m 9s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 Aug) | 2.5ft (0.8m) | 10s |
| Afternoon (16 Aug) | 4ft (1.2m) | 5s |
| Evening (16 Aug) | 3.5ft (1.0m) | 9s |
Table - waves today at Katahama. (Swell directed towards the surf break)
Short Range ForecastSome drizzle, heaviest during Sat night. Warm (max 27°C on Sun morning, min 24°C on Sun night). Wind will be generally light. | ||||||||||||||||||
Sat 15 | Sunday 16 | Monday 17 | ||||||||||||||||
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 10 | ESE 10 | ESE 10 | ESE 10 | E 10 | E 10 | E 10 | E 5 | E 9 | E 9 | E 9 | E 8 | E 8 | E 8 | E 9 | E 9 | ESE 8 | ESE 8 |
Wave Graph  | ||||||||||||||||||
 kJ | 386 | 342 | 276 | 342 | 158 | 117 | 240 | 75 | 52 | 162 | 151 | 140 | 140 | 136 | 153 | 150 | 120 | 94 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross | cross | cross | cross | cross-on | on | on | cross-on | cross-on | cross | cross | cross-on | cross-on | on | on | cross-on |
High Tide | 6:57PM1.75m | 6:53AM1.68m | 7:24PM1.76m | 7:35AM1.61m | 7:54PM1.75m | |||||||||||||
Low Tide | 1:04AM0.65m | 1:08PM0.48m | 1:41AM0.59m | 1:39PM0.59m | ||||||||||||||
 |  |  | | | | |  | | | | |  | | | | | | |
 | — | — | — | 5:07 | — | — | — | — | — | — | — | 5:07 | — | — | — | — | — | — |
 | 6:36 | — | — | — | — | — | — | — | 6:35 | — | — | — | — | — | — | — | 6:32 | — |
mm | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 26 | 25 | 25 | 25 | 26 | 27 | 27 | 26 | 26 | 25 | 25 | 24 | 26 | 27 | 27 | 26 | 26 |
Feels °C | 26 | 27 | 27 | 27 | 26 | 25 | 27 | 28 | 26 | 27 | 27 | 27 | 25 | 27 | 29 | 28 | 27 | 28 |
Swell 1 Height (m) Direction Period (s) | SSW 10 | SSW 9 | SSW 9 | SSW 9 | E 10 | E 10 | 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 | 129 | 119 | 86 | 84 | 158 | 117 | 80 | 62 | 79 | 80 | 82 | 80 | 57 | 55 | 54 | 54 | 35 | 37 |
Swell 2 Height (m) Direction Period (s) | SSE 8 | SSE 8 | SW 8 | SE 12 | SSW 9 | SSW 9 | ESE 9 | ESE 9 | E 9 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 |
| kJ | 13 | 6 | 11 | 22 | 84 | 77 | 28 | 28 | 52 | 30 | 42 | 42 | 19 | 30 | 19 | 19 | 18 | 18 |
Swell 3 Height (m) Direction Period (s) | SSE 12 | SSE 12 | SE 12 | SW 10 | SW 8 | ESE 10 | SE 11 | SW 8 | SE 11 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | E 9 | S 16 | S 16 | SW 8 | SW 8 |
| kJ | 14 | 14 | 22 | 14 | 18 | 19 | 20 | 18 | 31 | 8 | 8 | 17 | 8 | 6 | 5 | 5 | 11 | 3 |
Wind waves Height (m) Direction Period (s) | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 5 | ESE 5 | E 10 | E 5 | ESE 5 | E 9 | E 9 | E 8 | E 8 | E 8 | E 9 | E 9 | ESE 8 | ESE 8 |
| kJ | 386 | 342 | 276 | 342 | 44 | 33 | 240 | 75 | 41 | 162 | 151 | 140 | 140 | 136 | 153 | 150 | 120 | 94 |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 104 | 104 | 124 | 132 | 103 | 138 | 150 | 104 | 104 | 85 | 132 | 13 | 13 | 85 | 145 | 85 | 104 | 104 |
Best forecast wave conditions in Shizuoka | ||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||
Header Global | ||||||||||||||||||
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