Surf Forecasts:
How big are the waves at Katahama today (16 Aug):
- Morning surf: Morning surf (16 Aug, local time) - 2.5ft (0.8m), 10s period with E swell.
- Afternoon surf: Afternoon surf (16 Aug, local time) - 2ft (0.6m), 10s period with E swell.
- Evening surf: Evening surf (16 Aug, local time) - 2.5ft (0.7m), 9s period with E swell.
The current surf forecast for Katahama at 1PM is: 1.1m 10s primary swell from a East direction and 0.4m 9s secondary swell from a East-southeast direction (forecast issued at 08:00am August 16). An open ocean swell of 0.7m 9s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 Aug) | 2.5ft (0.8m) | 10s |
| Afternoon (16 Aug) | 2ft (0.6m) | 10s |
| Evening (16 Aug) | 2.5ft (0.7m) | 9s |
Table - waves today at Katahama. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 27°C on Sun morning, min 24°C on Mon night). Wind will be generally light. | ||||||||||||||||||||||
Sunday 16 | Monday 17 | Tuesday 18 | ||||||||||||||||||||
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) | ESE 10 | E 10 | E 10 | E 10 | E 9 | E 9 | E 9 | E 8 | E 8 | E 8 | ESE 9 | ESE 9 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 |
Wave Graph  | ||||||||||||||||||||||
 kJ | 294 | 117 | 234 | 69 | 151 | 78 | 151 | 116 | 90 | 113 | 129 | 101 | 96 | 94 | 94 | 92 | 72 | 70 | 54 | 92 | 89 | 85 |
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 | cross | cross | cross-on | on | on | on | cross-on | cross-on | cross-off | cross-off | cross-on | on | on | on | on |
High Tide | 6:53AM1.68m | 7:24PM1.76m | 7:35AM1.61m | 7:54PM1.75m | 8:21AM1.51m | 8:26PM1.70m | ||||||||||||||||
Low Tide | 1:08PM0.48m | 1:41AM0.59m | 1:39PM0.59m | 2:23AM0.57m | 2:11PM0.73m | |||||||||||||||||
 |  | | | |  |  | | | | | | | | | | | | | | | | |
 | 5:07 | — | — | — | — | — | — | 5:07 | — | — | — | — | — | — | — | 5:09 | — | — | — | — | — | — |
 | — | — | — | — | 6:35 | — | — | — | — | — | — | — | 6:32 | — | — | — | — | — | — | — | 6:31 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 26 | 27 | 27 | 26 | 26 | 25 | 25 | 25 | 26 | 27 | 27 | 26 | 26 | 25 | 24 | 24 | 26 | 27 | 27 | 26 | 26 |
Feels °C | 26 | 26 | 28 | 28 | 26 | 28 | 28 | 27 | 27 | 27 | 28 | 28 | 28 | 29 | 28 | 26 | 26 | 28 | 28 | 28 | 28 | 30 |
Swell 1 Height (m) Direction Period (s) | SSW 9 | E 10 | SSW 9 | SSW 9 | SSW 9 | E 9 | SSW 9 | E 8 | E 8 | SSW 8 | SSW 8 | SSW 8 | SSW 8 | SSW 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | SSW 8 | SSW 8 | ESE 8 | ESE 8 |
| kJ | 84 | 117 | 80 | 62 | 79 | 78 | 82 | 116 | 90 | 55 | 54 | 54 | 38 | 37 | 94 | 92 | 72 | 70 | 23 | 12 | 89 | 85 |
Swell 2 Height (m) Direction Period (s) | SW 8 | SSW 9 | ESE 9 | E 10 | SE 11 | SSW 9 | SE 11 | SSW 9 | SSW 8 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SSW 8 | SSW 8 | SSW 8 | SSW 8 | E 8 | SW 8 | SSW 8 | SSW 8 |
| kJ | 25 | 77 | 28 | 69 | 19 | 80 | 42 | 80 | 75 | 19 | 19 | 18 | 18 | 18 | 35 | 35 | 37 | 24 | 22 | 9 | 12 | 12 |
Swell 3 Height (m) Direction Period (s) | SE 12 | ESE 10 | SE 11 | ESE 9 | ESE 9 | SE 11 | ESE 9 | SE 11 | SE 11 | ESE 9 | S 16 | S 16 | S 16 | SW 8 | SE 11 | SE 11 | SE 11 | SE 10 | SE 10 | SE 10 | SW 8 | SW 8 |
| kJ | 22 | 19 | 20 | 28 | 17 | 30 | 8 | 42 | 19 | 8 | 5 | 5 | 5 | 3 | 18 | 18 | 18 | 17 | 17 | 16 | 10 | 10 |
Wind waves Height (m) Direction Period (s) | ESE 10 | ESE 5 | E 10 | E 5 | E 9 | ESE 4 | E 9 | — | — | E 8 | ESE 9 | ESE 9 | ESE 8 | ESE 8 | — | — | NE 2 | E 8 | ESE 8 | ESE 8 | — | — |
| kJ | 294 | 35 | 234 | 49 | 151 | 22 | 151 | — | — | 113 | 129 | 101 | 96 | 94 | — | — | 1 | 69 | 54 | 92 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||
Distance (km) | 103 | 13 | 150 | 85 | 104 | 104 | 104 | 103 | 103 | 104 | 13 | 104 | 104 | 104 | 104 | 13 | 13 | 13 | 13 | 13 | 104 | 13 |
Best forecast wave conditions in Shizuoka | ||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||
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