Surf Forecasts:
How big are the waves at Katahama today (07 Sep):
- Morning surf: Morning surf (07 Sep, local time) - 8ft (2.5m), 10s period with S swell.
- Afternoon surf: Afternoon surf (07 Sep, local time) - 8ft (2.5m), 9s period with S swell.
- Evening surf: Evening surf (07 Sep, local time) - 8ft (2.4m), 9s period with S swell.
The current surf forecast for Katahama at 2AM is: 3.0m 8s primary swell from a East-southeast direction and 2.1m 10s secondary swell from a South direction, 2.1m 8s secondary swell from a East-southeast direction (forecast issued at 08:00pm September 06). The wind direction is predicted to be onshore and the swell rating is 11.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (07 Sep) | 8ft (2.5m) | 10s |
| Afternoon (07 Sep) | 8ft (2.5m) | 9s |
| Evening (07 Sep) | 8ft (2.4m) | 9s |
Table - waves today at Katahama. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 277mm), heaviest during Sun night. Warm (max 27°C on Wed morning, min 22°C on Sun night). Winds decreasing (strong winds from the NE on Sun night, calm by Mon night). | ||||||||||||||||||
Sun 6 | Monday 7 | Tuesday 8 | ||||||||||||||||
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) | SE 8 | E 8 | ESE 8 | S 10 | S 10 | S 10 | S 9 | S 9 | S 9 | S 9 | S 9 | S 9 | S 9 | S 9 | S 9 | SE 8 | SE 8 | SE 8 |
Wave Graph  | ||||||||||||||||||
 kJ | 273 | 1329 | 1165 | 1183 | 1416 | 1212 | 1137 | 1210 | 1112 | 942 | 929 | 865 | 702 | 702 | 769 | 211 | 201 | 173 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-on | on | on | cross-on | cross-on | cross | glassy | glassy | glassy | glassy | glassy | cross | cross | glassy | glassy | glassy |
High Tide | 3:44PM1.45m | 1:35AM1.37m | 4:12PM1.54m | 2:51AM1.44m | 4:35PM1.60m | |||||||||||||
Low Tide | 9:15PM1.22m | 8:59AM0.55m | 10:00PM1.10m | 9:47AM0.49m | ||||||||||||||
 |  | |  | |  | |  | |  | | |  |  | | | |  | |
 | — | — | — | 5:22 | — | — | — | — | — | — | — | 5:24 | — | — | — | — | — | — |
 | 6:07 | — | — | — | — | — | — | — | 6:06 | — | — | — | — | — | — | — | 6:05 | — |
mm | 19 | 38 | 79 | 42 | 35 | 14 | 5 | 8 | 4 | 4 | 4 | 4 | 3 | 3 | 2 | 3 | 2 | 2 |
Temp °C | 21 | 22 | 23 | 25 | 24 | 25 | 26 | 26 | 25 | 25 | 25 | 24 | 25 | 25 | 26 | 26 | 26 | 25 |
Feels °C | 16 | 18 | 24 | 28 | 28 | 29 | 30 | 29 | 30 | 31 | 31 | 29 | 30 | 30 | 31 | 32 | 32 | 30 |
Swell 1 Height (m) Direction Period (s) | SE 8 | S 9 | S 9 | S 10 | S 10 | S 10 | S 9 | E 8 | S 9 | S 9 | S 9 | S 9 | S 9 | S 9 | S 9 | SSW 10 | SSW 10 | SSW 10 |
| kJ | 273 | 288 | 551 | 972 | 1057 | 1212 | 1137 | 61 | 1112 | 942 | 929 | 865 | 702 | 702 | 769 | 741 | 703 | 772 |
Swell 2 Height (m) Direction Period (s) | S 9 | SW 10 | SW 9 | ESE 8 | E 8 | ESE 8 | E 8 | — | E 8 | E 8 | E 8 | E 8 | SW 11 | SW 10 | SW 10 | SE 8 | SE 8 | SE 8 |
| kJ | 198 | 15 | 22 | 547 | 349 | 235 | 149 | — | 46 | 41 | 31 | 23 | 55 | 89 | 84 | 211 | 201 | 173 |
Swell 3 Height (m) Direction Period (s) | SW 10 | — | — | SW 9 | SW 9 | — | — | — | — | S 11 | — | E 8 | E 8 | E 8 | E 8 | E 9 | ESE 10 | E 9 |
| kJ | 15 | — | — | 13 | 21 | — | — | — | — | 21 | — | 33 | 22 | 22 | 23 | 14 | 20 | 14 |
Wind waves Height (m) Direction Period (s) | ENE 7 | E 8 | ESE 8 | S 10 | S 10 | — | — | S 9 | — | — | — | — | — | — | — | — | — | — |
| kJ | 613 | 1329 | 1165 | 1183 | 1416 | — | — | 1210 | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 415 | 415 | 415 | 94 | 2 | 2 | 94 | 94 | 2 | 2 | 2 | 2 | 2 | 13 | 13 | 2 | 2 | 2 |
Best forecast wave conditions in Shizuoka | ||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||
Header Global | ||||||||||||||||||
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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