Surf Forecasts:
How big are the waves at Katahama today (25 Aug):
- Morning surf: Morning surf (25 Aug, local time) - 7.5ft (2.3m), 13s period with SSE swell.
- Afternoon surf: Afternoon surf (25 Aug, local time) - 7ft (2.1m), 12s period with S swell.
- Evening surf: Evening surf (25 Aug, local time) - 7ft (2.1m), 12s period with S swell.
The current surf forecast for Katahama at 10AM is: 2.3m 13s primary swell from a South-southeast direction and 0.6m 14s secondary swell from a East direction (forecast issued at 02:00am August 25). An open ocean swell of 0.6m 10s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (25 Aug) | 7.5ft (2.3m) | 13s |
| Afternoon (25 Aug) | 7ft (2.1m) | 12s |
| Evening (25 Aug) | 7ft (2.1m) | 12s |
Table - waves today at Katahama. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 6mm), mostly falling on Thu night. Warm (max 30°C on Wed morning, min 25°C on Thu night). Wind will be generally light. | ||||||||||||||||||||||||
Tuesday 25 | Wednesday 26 | Thursday 27 | ||||||||||||||||||||||
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) | SSE 15 | SSE 14 | SSE 13 | SSE 13 | SSE 13 | S 12 | S 12 | S 12 | S 12 | S 12 | S 12 | E 13 | SE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 8 | SSE 10 | SSE 9 | SSE 9 | SSE 10 | S 10 | S 10 | SW 6 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 2182 | 2167 | 1877 | 1777 | 1451 | 1334 | 1292 | 1363 | 1229 | 1002 | 870 | 119 | 84 | 130 | 96 | 86 | 82 | 160 | 113 | 141 | 147 | 127 | 94 | 95 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross-off |
High Tide | 3:17AM1.50m | 5:06PM1.61m | 4:02AM1.57m | 5:24PM1.65m | 4:40AM1.64m | 5:42PM1.69m | ||||||||||||||||||
Low Tide | 10:24PM1.11m | 10:18AM0.41m | 10:51PM1.01m | 10:51AM0.39m | 11:15PM0.91m | 11:19AM0.38m | ||||||||||||||||||
 |  |  |  | | | | | | | | | | | | | | | | | | | |  | |
 | — | 5:13 | — | — | — | — | — | — | — | 5:13 | — | — | — | — | — | — | — | 5:15 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 6:23 | — | — | — | — | — | — | — | 6:22 | — | — | — | — | — | — | — | 6:21 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 |
Temp °C | 26 | 26 | 26 | 28 | 29 | 29 | 28 | 27 | 27 | 26 | 26 | 29 | 30 | 29 | 28 | 28 | 27 | 27 | 27 | 29 | 30 | 30 | 29 | 28 |
Feels °C | 30 | 30 | 31 | 30 | 30 | 29 | 29 | 30 | 30 | 29 | 30 | 33 | 31 | 31 | 30 | 31 | 30 | 30 | 30 | 31 | 31 | 31 | 31 | 30 |
Swell 1 Height (m) Direction Period (s) | SSE 15 | SSE 14 | SSE 13 | SSE 13 | SSE 13 | S 12 | S 12 | S 12 | S 12 | S 12 | S 12 | S 12 | SSW 12 | SSW 12 | SSW 12 | SSW 11 | SSW 11 | SSW 11 | SSW 11 | SW 10 | SSE 10 | S 10 | SW 10 | SW 10 |
| kJ | 2182 | 2167 | 1877 | 1777 | 1451 | 1334 | 1292 | 1363 | 1229 | 1002 | 870 | 639 | 658 | 603 | 593 | 504 | 443 | 323 | 311 | 276 | 147 | 127 | 244 | 167 |
Swell 2 Height (m) Direction Period (s) | SW 10 | SW 10 | E 14 | E 14 | E 14 | E 14 | E 13 | E 13 | E 13 | E 13 | E 13 | SE 9 | SE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 8 | SSE 10 | SSE 9 | SSE 9 | E 11 | ESE 11 | S 10 | S 10 |
| kJ | 58 | 58 | 153 | 150 | 100 | 132 | 128 | 126 | 125 | 123 | 121 | 88 | 84 | 130 | 96 | 86 | 82 | 160 | 113 | 141 | 39 | 38 | 94 | 87 |
Swell 3 Height (m) Direction Period (s) | E 12 | E 11 | SW 10 | E 11 | E 10 | SW 10 | — | — | SW 9 | E 19 | WSW 9 | E 13 | E 12 | E 12 | E 12 | E 12 | S 11 | E 12 | E 12 | E 12 | E 15 | SE 10 | ESE 11 | ESE 11 |
| kJ | 69 | 37 | 59 | 37 | 35 | 24 | — | — | 13 | 7 | 8 | 119 | 78 | 75 | 73 | 72 | 60 | 68 | 42 | 41 | 38 | 24 | 38 | 38 |
Wind waves Height (m) Direction Period (s) | — | — | — | SW 10 | SW 10 | SW 10 | SW 4 | SW 4 | WSW 4 | WSW 4 | WSW 4 | WSW 4 | SW 4 | SW 4 | SW 4 | SW 4 | SW 5 | SW 6 | SW 6 | SW 6 | SW 10 | SW 11 | SW 5 | SW 6 |
| kJ | — | — | — | 59 | 76 | 92 | 16 | 22 | 13 | 26 | 30 | 26 | 26 | 25 | 20 | 21 | 36 | 76 | 89 | 79 | 498 | 538 | 64 | 95 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 2 | 2 | 2 | 127 | 236 | 236 | 236 | 65 | 2 | 2 | 2 | 6 | 397 | 397 | 382 | 355 | 103 | 103 | 103 | 65 | 127 | 103 | 103 | 65 |
Best forecast wave conditions in Shizuoka | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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