Surf Forecasts:
How big are the waves at Katahama today (31 Jul):
- Morning surf: Morning surf (31 Jul, local time) - 1.5ft (0.4m), 9s period with SE swell.
- Afternoon surf: Afternoon surf (31 Jul, local time) - 3ft (0.9m), 6s period with SW swell.
- Evening surf: Evening surf (31 Jul, local time) - 1ft (0.3m), 9s period with ESE swell.
The current surf forecast for Katahama at 4AM is: 0.3m 9s primary swell from a East-southeast direction (forecast issued at 08:00pm July 30). An open ocean swell of 0.9m 6s is not directed at the surf break, a second open ocean swell of 0.7m 4s is not directed at the surf break. The wind direction is predicted to be glassy.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 Jul) | 1.5ft (0.4m) | 9s |
| Afternoon (31 Jul) | 3ft (0.9m) | 6s |
| Evening (31 Jul) | 1ft (0.3m) | 9s |
Table - waves today at Katahama. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 31°C on Fri afternoon, min 27°C on Fri night). Wind will be generally light. | ||||||||||||||||||
Thu 30 | Friday 31 | Saturday 1 | ||||||||||||||||
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 | SW 5 | SW 5 | ESE 9 | ESE 9 | SE 9 | SE 9 | SW 6 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 10 | ESE 15 | E 11 | SE 17 | SE 16 | SE 16 |
Wave Graph  | ||||||||||||||||||
 kJ | 9 | 86 | 71 | 17 | 17 | 22 | 22 | 60 | 17 | 17 | 8 | 8 | 9 | 22 | 22 | 47 | 125 | 125 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | glassy | glassy | glassy | on | cross-on | on | glassy | cross-off | cross-off | glassy | glassy | cross-on | cross-on | cross | glassy |
High Tide | 6:40PM1.67m | 5:56AM1.68m | 7:05PM1.70m | 6:37AM1.67m | 7:32PM1.72m | |||||||||||||
Low Tide | 00:26AM0.86m | 12:36PM0.29m | 1:00AM0.78m | 1:07PM0.36m | ||||||||||||||
 |  |  | |  |  | | | | | | | | | | | | | |
 | — | — | — | 4:54 | — | — | — | — | — | — | — | 4:56 | — | — | — | — | — | — |
 | 6:51 | — | — | — | — | — | — | — | 6:51 | — | — | — | — | — | — | — | 6:50 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 33 | 30 | 28 | 28 | 28 | 29 | 30 | 31 | 29 | 28 | 28 | 27 | 27 | 29 | 30 | 31 | 29 | 28 |
Feels °C | 33 | 32 | 32 | 32 | 33 | 33 | 33 | 34 | 33 | 33 | 32 | 31 | 31 | 33 | 32 | 33 | 32 | 33 |
Swell 1 Height (m) Direction Period (s) | ESE 10 | ESE 10 | SE 10 | SW 5 | SW 6 | SW 6 | SW 6 | SE 9 | SW 6 | SW 5 | SW 5 | SW 5 | SW 5 | SW 6 | SW 6 | SSW 6 | SE 16 | SW 5 |
| kJ | 9 | 9 | 14 | 49 | 56 | 62 | 62 | 22 | 52 | 35 | 28 | 27 | 29 | 34 | 34 | 21 | 125 | 19 |
Swell 2 Height (m) Direction Period (s) | SE 12 | ESE 12 | ESE 12 | ESE 9 | ESE 9 | SE 9 | SE 9 | SE 11 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | SSW 7 | E 11 | E 11 | E 11 | E 11 | SE 16 |
| kJ | 6 | 15 | 15 | 17 | 17 | 22 | 22 | 5 | 17 | 17 | 8 | 8 | 9 | 9 | 21 | 21 | 20 | 125 |
Swell 3 Height (m) Direction Period (s) | E 9 | E 9 | S 8 | SE 12 | SE 13 | SE 11 | SE 11 | E 13 | E 12 | SSW 7 | SSW 7 | SSW 7 | ESE 10 | ESE 15 | ESE 15 | SE 17 | SE 8 | ESE 11 |
| kJ | 2 | 2 | 1 | 6 | 7 | 5 | 5 | 3 | 3 | 5 | 5 | 5 | 9 | 22 | 22 | 47 | 11 | 23 |
Wind waves Height (m) Direction Period (s) | SW 5 | SW 5 | SW 5 | WNW 4 | WNW 4 | WNW 4 | WNW 4 | SW 6 | — | — | — | — | — | — | — | — | SSW 5 | — |
| kJ | 117 | 86 | 71 | 16 | 11 | 15 | 14 | 60 | — | — | — | — | — | — | — | — | 19 | — |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 103 | 2 | 2 | 2 | 65 | 13 | 13 | 94 | 104 | 104 | 105 | 104 | 104 | 13 | 104 | 65 | 6 | 2 |
Best forecast wave conditions in Shizuoka | ||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||
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