Surf Forecasts:
How big are the waves at Katahama today (31 Aug):
- Morning surf: Morning surf (31 Aug, local time) - 2.5ft (0.7m), 4s period with E swell.
- Afternoon surf: Afternoon surf (31 Aug, local time) - 1ft (0.3m), 14s period with ESE swell.
- Evening surf: Evening surf (31 Aug, local time) - 1.5ft (0.4m), 14s period with ESE swell.
The current surf forecast for Katahama at 11AM is: 0.7m 4s primary swell from a East direction (forecast issued at 08:00am August 31). An open ocean swell of 0.4m 8s is not directed at the surf break, a second open ocean swell of 0.4m 5s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 Aug) | 2.5ft (0.7m) | 4s |
| Afternoon (31 Aug) | 1ft (0.3m) | 14s |
| Evening (31 Aug) | 1.5ft (0.4m) | 14s |
Table - waves today at Katahama. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 27°C on Mon morning, min 24°C on Tue night). Wind will be generally light. | ||||||||||||||||||||||
Monday 31 | Tuesday 1 | Wednesday 2 | ||||||||||||||||||||
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 3 | E 4 | E 4 | ESE 14 | ESE 14 | ESE 14 | E 13 | E 13 | ESE 13 | ESE 12 | ESE 12 | ESE 12 | ESE 12 | ESE 11 | E 11 | E 11 | E 11 | E 11 | E 11 | E 10 | E 10 | E 10 |
Wave Graph  | ||||||||||||||||||||||
 kJ | 3 | 13 | 15 | 37 | 64 | 74 | 130 | 168 | 165 | 160 | 192 | 186 | 232 | 205 | 160 | 160 | 149 | 112 | 110 | 102 | 73 | 98 |
Wind (km/h) | ||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | on | on | cross-on | cross-on | cross | cross | cross-on | on | on | on | on | glassy | glassy | glassy | on | on | cross-on | cross-on | cross-on |
High Tide | 7:07AM1.67m | 7:15PM1.79m | 7:49AM1.59m | 7:45PM1.75m | 8:38AM1.47m | 8:17PM1.69m | ||||||||||||||||
Low Tide | 1:07PM0.61m | 1:43AM0.50m | 1:37PM0.73m | 2:27AM0.51m | 2:09PM0.88m | |||||||||||||||||
 | | |  | |  | |  |  | | | | | | | | | | | | |  | |
 | 5:18 | — | — | — | — | — | — | 5:18 | — | — | — | — | — | — | — | 5:20 | — | — | — | — | — | — |
 | — | — | — | — | 6:15 | — | — | — | — | — | — | — | 6:14 | — | — | — | — | — | — | — | 6:13 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 26 | 27 | 27 | 26 | 26 | 25 | 25 | 25 | 25 | 26 | 26 | 25 | 25 | 25 | 25 | 24 | 26 | 27 | 27 | 27 | 26 |
Feels °C | 28 | 28 | 29 | 29 | 28 | 28 | 27 | 27 | 26 | 26 | 28 | 28 | 27 | 28 | 29 | 30 | 28 | 30 | 30 | 29 | 31 | 30 |
Swell 1 Height (m) Direction Period (s) | SW 6 | SW 6 | SSW 8 | SW 9 | SSW 9 | SSW 8 | E 13 | E 13 | ESE 13 | ESE 12 | ESE 12 | ESE 12 | ESE 12 | ESE 11 | E 11 | E 11 | E 11 | E 11 | S 8 | S 8 | S 8 | S 8 |
| kJ | 21 | 20 | 19 | 30 | 46 | 39 | 130 | 168 | 165 | 160 | 192 | 186 | 232 | 205 | 160 | 160 | 149 | 112 | 69 | 90 | 88 | 63 |
Swell 2 Height (m) Direction Period (s) | S 7 | SSW 7 | SW 5 | SSW 7 | SW 9 | SW 9 | SSW 8 | S 8 | S 8 | SW 9 | SW 9 | SW 9 | SW 9 | S 8 | S 8 | S 8 | S 8 | S 8 | E 11 | E 10 | E 10 | E 10 |
| kJ | 26 | 18 | 10 | 17 | 29 | 41 | 40 | 35 | 35 | 40 | 40 | 36 | 38 | 35 | 34 | 49 | 64 | 66 | 110 | 102 | 73 | 98 |
Swell 3 Height (m) Direction Period (s) | SW 10 | SW 10 | SW 9 | ESE 14 | ESE 14 | ESE 14 | SW 9 | SW 9 | SW 9 | S 8 | S 8 | SSW 9 | SSW 8 | SW 9 | SW 8 | SW 8 | SW 8 | SW 9 | SW 9 | SW 9 | E 13 | SSW 10 |
| kJ | 15 | 33 | 31 | 37 | 64 | 74 | 41 | 41 | 41 | 35 | 35 | 25 | 23 | 26 | 25 | 25 | 18 | 20 | 22 | 13 | 31 | 37 |
Wind waves Height (m) Direction Period (s) | E 3 | E 4 | E 4 | E 4 | E 4 | ESE 4 | E 4 | E 5 | E 4 | E 4 | E 4 | E 4 | E 4 | — | — | — | — | — | — | — | — | — |
| kJ | 3 | 13 | 15 | 16 | 16 | 25 | 33 | 36 | 19 | 17 | 12 | 8 | 7 | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||
Distance (km) | 178 | 236 | 150 | 150 | 150 | 150 | 150 | 150 | 103 | 145 | 104 | 104 | 104 | 13 | 2 | 2 | 2 | 2 | 104 | 104 | 65 | 2 |
Best forecast wave conditions in Shizuoka | ||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||
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