Surf Forecasts:
How big are the waves at Katahama today (18 Jun):
- Morning surf: Morning surf (18 Jun, local time) - 2.5ft (0.7m), 6s period with SE swell.
- Afternoon surf: Afternoon surf (18 Jun, local time) - 3.5ft (1.1m), 7s period with SE swell.
- Evening surf: Evening surf (18 Jun, local time) - 3.5ft (1.0m), 7s period with SSE swell.
The current surf forecast for Katahama at 9AM is: 0.7m 6s primary swell from a Southeast direction and 0.6m 4s secondary swell from a Northeast direction (forecast issued at 02:00am June 18). An open ocean swell of 1.2m 7s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Jun) | 2.5ft (0.7m) | 6s |
| Afternoon (18 Jun) | 3.5ft (1.1m) | 7s |
| Evening (18 Jun) | 3.5ft (1.0m) | 7s |
Table - waves today at Katahama. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 47mm), heaviest during Sat afternoon. Warm (max 25°C on Thu afternoon, min 20°C on Sat afternoon). Mainly fresh winds. | ||||||||||||||||||||||||
Thursday 18 | Friday 19 | Saturday 20 | ||||||||||||||||||||||
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 | 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 6 | E 9 | NE 4 | SE 6 | SE 8 | SE 7 | SE 8 | SSE 7 | SSE 6 | SSE 6 | SSE 6 | SSE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SSE 6 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 58 | 13 | 16 | 37 | 26 | 106 | 99 | 88 | 62 | 45 | 33 | 10 | 25 | 25 | 16 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 34 | 69 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | glassy | cross-off | cross-on | on | on | on | on | cross | cross | cross | cross | cross | cross | cross-on | cross |
High Tide | 6:19AM1.57m | 8:11PM1.54m | 7:06AM1.51m | 8:52PM1.54m | 7:58AM1.41m | |||||||||||||||||||
Low Tide | 00:58AM0.97m | 1:20PM0.17m | 1:49AM0.93m | 2:02PM0.26m | 2:47AM0.90m | 2:47PM0.38m | ||||||||||||||||||
 | |  |  |  |  | |  | | | | | | | | | | |  | | | | |  | |
 | — | 4:33 | — | — | — | — | — | — | — | 4:33 | — | — | — | — | — | — | — | 4:33 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 7:01 | — | — | — | — | — | — | — | 7:01 | — | — | — | — | — | — | — | 7:02 | — |
mm | 12 | 11 | 16 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 5 | 11 | 9 |
Temp °C | 19 | 19 | 19 | 21 | 24 | 25 | 23 | 23 | 22 | 22 | 21 | 23 | 24 | 23 | 23 | 22 | 22 | 22 | 21 | 22 | 21 | 20 | 20 | 20 |
Feels °C | 18 | 17 | 18 | 21 | 25 | 23 | 22 | 24 | 24 | 26 | 23 | 24 | 26 | 24 | 25 | 24 | 24 | 23 | 21 | 22 | 21 | 20 | 21 | 21 |
Swell 1 Height (m) Direction Period (s) | SSW 8 | SSW 8 | SSW 7 | SSW 7 | S 7 | SE 7 | SE 8 | SSE 7 | SW 8 | SW 8 | SW 8 | SSW 8 | SSW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 7 | SW 7 | SW 7 | SW 7 | SW 6 | SW 6 | SE 10 |
| kJ | 178 | 408 | 249 | 134 | 181 | 106 | 99 | 88 | 214 | 165 | 123 | 153 | 235 | 187 | 163 | 125 | 96 | 79 | 77 | 67 | 52 | 47 | 31 | 24 |
Swell 2 Height (m) Direction Period (s) | SE 6 | E 9 | SE 10 | SE 6 | SE 8 | SE 16 | SE 15 | E 10 | SSE 6 | SSE 6 | SSE 6 | SW 10 | SE 10 | SE 6 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | E 5 | SE 10 | SE 12 |
| kJ | 58 | 13 | 4 | 37 | 24 | 10 | 9 | 8 | 62 | 45 | 33 | 26 | 25 | 8 | 16 | 25 | 25 | 24 | 24 | 24 | 24 | 23 | 24 | 6 |
Swell 3 Height (m) Direction Period (s) | E 9 | SE 10 | SE 12 | SE 8 | NE 3 | ENE 10 | ENE 10 | SE 11 | SSE 11 | SSE 11 | SSE 10 | SSE 10 | SE 14 | SE 10 | E 8 | SE 13 | SE 13 | SE 13 | E 8 | SE 13 | SE 13 | SE 10 | SE 12 | E 10 |
| kJ | 14 | 4 | 6 | 16 | 2 | 19 | 18 | 5 | 12 | 11 | 10 | 10 | 8 | 25 | 5 | 7 | 7 | 7 | 1 | 7 | 6 | 24 | 6 | 2 |
Wind waves Height (m) Direction Period (s) | SSW 8 | — | NE 4 | NE 4 | ENE 4 | SW 9 | SW 9 | SW 9 | — | — | — | — | — | — | — | — | — | ENE 2 | ENE 3 | E 4 | E 4 | — | ESE 5 | SSE 6 |
| kJ | 447 | — | 16 | 9 | 26 | 481 | 573 | 351 | — | — | — | — | — | — | — | — | — | 1 | 5 | 14 | 17 | — | 34 | 69 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 351 | 150 | 150 | 13 | 6 | 65 | 127 | 6 | 2 | 2 | 2 | 13 | 104 | 104 | 13 | 104 | 236 | 150 | 150 | 386 | 903 | 903 | 706 | 13 |
Best forecast wave conditions in Shizuoka | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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