Surf Forecasts:
How big are the waves at Katahama today (30 Sep):
- Morning surf: Morning surf (30 Sep, local time) - 3.5ft (1.1m), 6s period with E swell.
- Afternoon surf: Afternoon surf (30 Sep, local time) - 4.5ft (1.4m), 7s period with E swell.
- Evening surf: Evening surf (30 Sep, local time) - 0.5ft (0.1m), 12s period with SE swell.
The current surf forecast for Katahama at 4AM is: 0.9m 5s primary swell from a East direction and 0.2m 9s secondary swell from a South-southeast direction (forecast issued at 08:00pm September 29). An open ocean swell of 1.6m 12s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 Sep) | 3.5ft (1.1m) | 6s |
| Afternoon (30 Sep) | 4.5ft (1.4m) | 7s |
| Evening (30 Sep) | 0.5ft (0.1m) | 12s |
Table - waves today at Katahama. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 18mm), heaviest on Tue night. Warm (max 29°C on Thu afternoon, min 18°C on Tue night). Wind will be generally light. | ||||||||||||||||||
Tue 29 | Wednesday 30 | Thursday 1 | ||||||||||||||||
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 10 | E 4 | E 4 | E 5 | E 6 | E 6 | E 6 | E 7 | SSW 10 | SE 12 | SE 8 | S 10 | S 9 | S 9 | SSE 9 | SSE 8 | SE 8 | SE 8 |
Wave Graph  | ||||||||||||||||||
 kJ | 8 | 14 | 26 | 46 | 49 | 80 | 113 | 167 | 0 | 6 | 3 | 407 | 392 | 380 | 322 | 262 | 192 | 96 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross-off | cross | cross | cross | cross | cross | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 6:32PM1.80m | 7:36AM1.59m | 7:01PM1.75m | 8:25AM1.49m | 7:33PM1.67m | |||||||||||||
Low Tide | 1:12AM0.34m | 1:05PM0.88m | 1:54AM0.38m | 1:40PM0.99m | ||||||||||||||
 |  | | |  |  | |  |  | |  | | |  | | |  | | |
 | — | — | — | 5:39 | — | — | — | — | — | — | — | 5:41 | — | — | — | — | — | — |
 | — | — | — | — | — | — | — | 5:34 | — | — | — | — | — | — | — | 5:31 | — | — |
mm | 2 | 6 | 4 | 4 | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 18 | 19 | 19 | 19 | 20 | 20 | 21 | 21 | 21 | 21 | 21 | 21 | 23 | 27 | 29 | 26 | 23 |
Feels °C | 20 | 18 | 20 | 19 | 18 | 19 | 18 | 20 | 19 | 19 | 20 | 20 | 21 | 23 | 29 | 29 | 24 | 22 |
Swell 1 Height (m) Direction Period (s) | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SSW 12 | SSW 11 | SSW 11 | SSW 10 | SSW 10 | SSW 10 | S 10 | S 10 | S 9 | S 9 | SSE 9 | SSE 8 | SE 8 | SE 8 |
| kJ | 1289 | 1144 | 908 | 802 | 565 | 478 | 460 | 469 | 416 | 394 | 377 | 407 | 392 | 380 | 322 | 262 | 192 | 96 |
Swell 2 Height (m) Direction Period (s) | SSE 9 | E 10 | E 10 | SSE 9 | SSE 9 | SSE 9 | SSE 12 | SE 12 | — | SE 12 | SE 8 | E 13 | E 6 | E 6 | E 6 | E 6 | E 6 | SE 10 |
| kJ | 8 | 7 | 7 | 8 | 8 | 8 | 14 | 6 | — | 6 | 3 | 4 | 76 | 62 | 50 | 27 | 7 | 16 |
Swell 3 Height (m) Direction Period (s) | E 10 | SSE 9 | SSE 9 | E 10 | E 9 | — | — | — | — | SE 8 | — | — | — | E 10 | E 12 | E 12 | E 12 | E 9 |
| kJ | 8 | 8 | 8 | 7 | 7 | — | — | — | — | 3 | — | — | — | 8 | 3 | 3 | 3 | 7 |
Wind waves Height (m) Direction Period (s) | E 3 | E 4 | E 4 | E 5 | E 6 | E 6 | E 6 | E 7 | E 7 | E 7 | E 7 | E 6 | — | — | NW 3 | W 4 | W 5 | W 5 |
| kJ | 5 | 14 | 26 | 46 | 49 | 80 | 113 | 167 | 168 | 173 | 124 | 79 | — | — | 2 | 36 | 146 | 86 |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 13 | 2 | 2 | 13 | 13 | 94 | 13 | 13 | 13 | 94 | 13 | 13 | 2 | 2 | 6 | 6 | 65 | 2 |
Best forecast wave conditions in Shizuoka | ||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||
Header Global | ||||||||||||||||||
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