Surf Forecasts:
How big are the waves at Katahama today (17 Aug):
- Morning surf: Morning surf (17 Aug, local time) - 3ft (0.9m), 8s period with E swell.
- Afternoon surf: Afternoon surf (17 Aug, local time) - 3ft (0.9m), 9s period with ESE swell.
- Evening surf: Evening surf (17 Aug, local time) - 3ft (0.9m), 8s period with ESE swell.
The current surf forecast for Katahama at 3AM is: 0.9m 8s primary swell from a East-southeast direction and 0.4m 11s secondary swell from a Southeast direction (forecast issued at 08:00pm August 16). 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 (17 Aug) | 3ft (0.9m) | 8s |
| Afternoon (17 Aug) | 3ft (0.9m) | 9s |
| Evening (17 Aug) | 3ft (0.9m) | 8s |
Table - waves today at Katahama. (Swell directed towards the surf break)
Short Range ForecastSome drizzle, heaviest during Sun night. Warm (max 28°C on Wed morning, min 24°C on Mon night). Wind will be generally light. | ||||||||||||||||||
Sun 16 | Monday 17 | Tuesday 18 | ||||||||||||||||
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 5 | E 9 | E 9 | ESE 8 | E 8 | E 8 | ESE 9 | ESE 9 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 7 | ESE 8 | ESE 8 |
Wave Graph  | ||||||||||||||||||
 kJ | 67 | 194 | 151 | 120 | 113 | 113 | 129 | 126 | 103 | 101 | 94 | 73 | 72 | 70 | 87 | 78 | 83 | 81 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | cross | cross | cross-on | on | on | on | on | cross | cross | cross-off | cross-on | on | on | on | on |
High Tide | 7:24PM1.76m | 7:35AM1.61m | 7:54PM1.75m | 8:21AM1.51m | 8:26PM1.70m | |||||||||||||
Low Tide | 1:41AM0.59m | 1:39PM0.59m | 2:23AM0.57m | 2:11PM0.73m | ||||||||||||||
 |  |  |  |  | | | | | | | | |  | | | | | |
 | — | — | — | 5:07 | — | — | — | — | — | — | — | 5:09 | — | — | — | — | — | — |
 | 6:35 | — | — | — | — | — | — | — | 6:32 | — | — | — | — | — | — | — | 6:31 | — |
mm | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 26 | 25 | 25 | 25 | 26 | 27 | 27 | 26 | 26 | 25 | 25 | 24 | 26 | 27 | 27 | 26 | 26 |
Feels °C | 26 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 29 | 28 | 28 | 26 | 28 | 28 | 28 | 29 | 30 |
Swell 1 Height (m) Direction Period (s) | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SSW 8 | SSW 8 | SSW 8 | SSW 8 | SSW 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | SSW 8 | SSW 8 | SSW 8 | ESE 8 | ESE 8 |
| kJ | 79 | 80 | 82 | 80 | 75 | 55 | 61 | 54 | 38 | 101 | 94 | 73 | 72 | 24 | 23 | 12 | 83 | 81 |
Swell 2 Height (m) Direction Period (s) | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SSW 8 | SSW 8 | SSW 8 | SSW 8 | SE 10 | SE 10 | SW 8 | SSW 8 | SSW 8 |
| kJ | 31 | 30 | 42 | 42 | 19 | 30 | 19 | 18 | 18 | 37 | 35 | 35 | 26 | 17 | 16 | 9 | 12 | 12 |
Swell 3 Height (m) Direction Period (s) | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | E 9 | S 16 | S 16 | S 16 | SE 11 | SE 11 | SE 11 | SE 10 | SW 9 | SW 9 | SE 10 | SW 8 | SW 8 |
| kJ | 17 | 8 | 8 | 17 | 8 | 6 | 5 | 5 | 5 | 18 | 18 | 18 | 17 | 3 | 3 | 16 | 10 | 10 |
Wind waves Height (m) Direction Period (s) | E 5 | E 9 | E 9 | ESE 8 | E 8 | E 8 | ESE 9 | ESE 9 | ESE 8 | — | — | — | — | ESE 8 | ESE 8 | ESE 7 | SE 8 | — |
| kJ | 67 | 194 | 151 | 120 | 113 | 113 | 129 | 126 | 103 | — | — | — | — | 70 | 87 | 78 | 45 | — |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 85 | 132 | 104 | 103 | 103 | 104 | 104 | 104 | 104 | 104 | 104 | 2 | 13 | 13 | 104 | 104 | 104 | 13 |
Best forecast wave conditions in Shizuoka | ||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||
Header Global | ||||||||||||||||||
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