Surf Forecasts:
How big are the waves at Katahama today (21 Jul):
- Morning surf: Morning surf (21 Jul, local time) - 2ft (0.6m), 11s period with E swell.
- Afternoon surf: Afternoon surf (21 Jul, local time) - 2ft (0.6m), 11s period with E swell.
- Evening surf: Evening surf (21 Jul, local time) - 0.5ft (0.2m), 8s period with SSE swell.
The current surf forecast for Katahama at 4AM is: 0.5m 11s primary swell from a East direction and 0.4m 8s secondary swell from a East direction, 0.4m 4s secondary swell from a Southwest direction (forecast issued at 08:00pm July 20). The wind direction is predicted to be cross-offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Jul) | 2ft (0.6m) | 11s |
| Afternoon (21 Jul) | 2ft (0.6m) | 11s |
| Evening (21 Jul) | 0.5ft (0.2m) | 8s |
Table - waves today at Katahama. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 31°C on Tue afternoon, min 27°C on Mon night). Wind will be generally light. | ||||||||||||||||||
Mon 20 | Tuesday 21 | Wednesday 22 | ||||||||||||||||
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 10 | E 11 | E 11 | E 11 | E 11 | E 11 | SW 4 | SSE 8 | SW 5 | SW 5 | ESE 11 | ESE 11 | SW 5 | SW 5 | SW 5 | SW 5 |
Wave Graph  | ||||||||||||||||||
 kJ | 55 | 52 | 45 | 59 | 59 | 84 | 82 | 82 | 24 | 6 | 22 | 33 | 11 | 11 | 31 | 47 | 83 | 93 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | cross-on | cross | cross | cross-off | cross-off | glassy | glassy | glassy | cross-on | cross | cross-off | cross-off |
High Tide | 9:22PM1.63m | 9:46AM1.29m | 10:04PM1.58m | 11:23AM1.19m | ||||||||||||||
Low Tide | 4:04AM0.70m | 3:33PM0.78m | 5:12AM0.68m | 4:21PM0.95m | ||||||||||||||
 |  | | | | | | | | | | | | | | | | | |
 | — | — | — | 4:48 | — | — | — | — | — | — | — | 4:48 | — | — | — | — | — | — |
 | 6:58 | — | — | — | — | — | — | — | 6:58 | — | — | — | — | — | — | — | 6:57 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 29 | 28 | 27 | 27 | 27 | 29 | 30 | 31 | 29 | 28 | 27 | 27 | 27 | 29 | 30 | 31 | 29 | 28 |
Feels °C | 31 | 32 | 31 | 32 | 32 | 34 | 34 | 34 | 32 | 32 | 32 | 33 | 33 | 35 | 33 | 33 | 32 | 33 |
Swell 1 Height (m) Direction Period (s) | 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 | ENE 10 | E 10 | E 10 |
| kJ | 55 | 52 | 45 | 59 | 59 | 84 | 82 | 82 | 55 | 57 | 56 | 52 | 51 | 38 | 51 | 34 | 53 | 52 |
Swell 2 Height (m) Direction Period (s) | SE 8 | SE 8 | SE 8 | E 8 | E 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | WSW 8 | SSE 8 | SW 8 | WSW 8 | E 10 | ESE 11 | ESE 11 | SE 10 | SE 11 |
| kJ | 11 | 17 | 11 | 21 | 22 | 6 | 6 | 6 | 6 | 6 | 6 | 3 | 6 | 51 | 11 | 11 | 4 | 5 |
Swell 3 Height (m) Direction Period (s) | S 7 | E 13 | E 12 | SSE 8 | SSE 8 | WSW 8 | WSW 8 | WSW 8 | ESE 11 | SSE 8 | SW 8 | SSE 8 | ESE 11 | ESE 11 | SE 8 | SE 8 | SE 7 | SE 11 |
| kJ | 4 | 14 | 23 | 7 | 7 | 7 | 7 | 6 | 12 | 6 | 2 | 6 | 11 | 11 | 2 | 2 | 2 | 4 |
Wind waves Height (m) Direction Period (s) | SW 3 | SW 3 | SW 3 | SW 3 | SW 4 | SW 4 | SW 4 | SW 4 | SW 4 | SW 4 | SW 5 | SW 5 | SW 5 | — | SW 5 | SW 5 | SW 5 | SW 5 |
| kJ | 6 | 5 | 4 | 4 | 5 | 9 | 12 | 14 | 24 | 24 | 22 | 33 | 43 | — | 31 | 47 | 83 | 93 |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 65 | 6 | 6 | 6 | 6 | 6 | 6 | 1289 | 397 | 65 | 65 | 65 | 65 | 65 | 65 | 211 | 211 | 2 |
Best forecast wave conditions in Shizuoka | ||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||
Header Global | ||||||||||||||||||
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