Surf Forecasts:
How big are the waves at Katahama today (20 Jul):
- Morning surf: Morning surf (20 Jul, local time) - 2.5ft (0.7m), 9s period with E swell.
- Afternoon surf: Afternoon surf (20 Jul, local time) - 2ft (0.6m), 9s period with E swell.
- Evening surf: Evening surf (20 Jul, local time) - 2ft (0.6m), 9s period with E swell.
The current surf forecast for Katahama at 3PM is: 0.6m 9s primary swell from a East direction and 0.2m 8s secondary swell from a South-southeast direction, 0.6m 3s secondary swell from a Southwest direction (forecast issued at 08:00am July 20). The wind direction is predicted to be cross-shore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Jul) | 2.5ft (0.7m) | 9s |
| Afternoon (20 Jul) | 2ft (0.6m) | 9s |
| Evening (20 Jul) | 2ft (0.6m) | 9s |
Table - waves today at Katahama. (Swell directed towards the surf break)
Short Range ForecastSome drizzle, heaviest during Tue afternoon. Warm (max 31°C on Wed afternoon, min 26°C on Mon night). Wind will be generally light. | ||||||||||||||||||||||
Monday 20 | Tuesday 21 | Wednesday 22 | ||||||||||||||||||||
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) | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 10 | E 11 | E 11 | E 11 | E 11 | E 11 | SW 4 | SSE 8 | SW 5 | SSE 8 | SW 5 | ESE 11 | SW 5 | SW 5 | SW 5 | SW 5 |
Wave Graph  | ||||||||||||||||||||||
 kJ | 58 | 79 | 57 | 57 | 55 | 52 | 45 | 59 | 59 | 84 | 82 | 79 | 15 | 6 | 21 | 6 | 33 | 11 | 30 | 41 | 63 | 60 |
Wind (km/h) | ||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | cross-on | cross | cross | cross-off | cross-off | cross-off | glassy | glassy | cross-on | cross | cross-off | cross-off |
High Tide | 8:41AM1.42m | 9:22PM1.63m | 9:46AM1.29m | 10:04PM1.58m | 11:23AM1.19m | |||||||||||||||||
Low Tide | 3:06AM0.72m | 2:52PM0.61m | 4:04AM0.70m | 3:33PM0.78m | 5:12AM0.68m | 4:21PM0.95m | ||||||||||||||||
 | |  | | |  | | | | | |  | | | | | | | | | | | |
 | 4:47 | — | — | — | — | — | — | 4:48 | — | — | — | — | — | — | — | 4:48 | — | — | — | — | — | — |
 | — | — | — | — | 6:58 | — | — | — | — | — | — | — | 6:58 | — | — | — | — | — | — | — | 6:57 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 29 | 30 | 30 | 29 | 27 | 27 | 26 | 27 | 29 | 30 | 30 | 29 | 28 | 27 | 27 | 27 | 29 | 30 | 31 | 29 | 28 |
Feels °C | 30 | 33 | 32 | 32 | 31 | 30 | 31 | 30 | 32 | 34 | 34 | 34 | 32 | 32 | 31 | 32 | 33 | 35 | 34 | 34 | 32 | 33 |
Swell 1 Height (m) Direction Period (s) | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 10 | E 11 | E 11 | E 11 | E 11 | E 11 | E 10 | E 11 | E 10 | E 10 | E 10 | SW 5 | E 10 | E 10 | E 10 | E 10 |
| kJ | 58 | 79 | 57 | 57 | 55 | 52 | 45 | 59 | 59 | 84 | 82 | 79 | 55 | 57 | 56 | 52 | 51 | 35 | 51 | 52 | 53 | 52 |
Swell 2 Height (m) Direction Period (s) | SE 6 | SSE 8 | SSE 9 | SSE 8 | SE 8 | SE 8 | SE 8 | E 8 | E 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | WSW 8 | WSW 8 | SW 8 | ESE 11 | E 10 | ESE 11 | ESE 11 | SE 10 | SW 7 |
| kJ | 6 | 7 | 8 | 7 | 11 | 17 | 11 | 21 | 22 | 6 | 6 | 6 | 6 | 6 | 6 | 3 | 11 | 51 | 11 | 11 | 4 | 2 |
Swell 3 Height (m) Direction Period (s) | SW 6 | S 7 | S 7 | S 7 | S 7 | WSW 8 | E 12 | SSE 8 | SSE 8 | WSW 8 | WSW 8 | WSW 8 | ESE 11 | SSE 8 | SSE 8 | SSE 8 | SW 8 | ESE 11 | SW 8 | SE 7 | SE 7 | SE 11 |
| kJ | 6 | 4 | 4 | 4 | 4 | 6 | 23 | 7 | 7 | 7 | 7 | 6 | 12 | 6 | 6 | 6 | 2 | 11 | 2 | 2 | 2 | 5 |
Wind waves Height (m) Direction Period (s) | — | SW 6 | SW 6 | SW 3 | SW 3 | SW 3 | SW 3 | SW 4 | SW 4 | SW 4 | SW 4 | SW 4 | SW 4 | SW 4 | SW 5 | SW 5 | SW 5 | WSW 5 | SW 5 | SW 5 | SW 5 | SW 5 |
| kJ | — | 6 | 14 | 6 | 7 | 4 | 4 | 6 | 7 | 8 | 11 | 11 | 15 | 22 | 21 | 26 | 33 | 44 | 30 | 41 | 63 | 60 |
Nearest Offshore or Glassy | ||||||||||||||||||||||
Distance (km) | 6 | 6 | 208 | 211 | 65 | 6 | 6 | 6 | 6 | 6 | 6 | 1289 | 397 | 65 | 65 | 65 | 65 | 65 | 211 | 716 | 716 | 65 |
Best forecast wave conditions in Shizuoka | ||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||
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