Surf Forecasts:
How big are the waves at Keta Reef Oshima today (28 Aug):
- Morning surf: Morning surf (28 Aug, local time) - 4ft (1.2m), 6s period with SW swell.
- Afternoon surf: Afternoon surf (28 Aug, local time) - 4.5ft (1.3m), 6s period with SW swell.
- Evening surf: Evening surf (28 Aug, local time) - 3.5ft (1.0m), 6s period with SW swell.
The current surf forecast for Keta Reef Oshima at 12PM is: 1.4m 6s primary swell from a Southwest direction and 0.5m 12s secondary swell from a East direction, 0.4m 8s secondary swell from a South direction (forecast issued at 08:00am August 28). The wind direction is predicted to be onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (28 Aug) | 4ft (1.2m) | 6s |
| Afternoon (28 Aug) | 4.5ft (1.3m) | 6s |
| Evening (28 Aug) | 3.5ft (1.0m) | 6s |
Table - waves today at Keta Reef Oshima. (Swell directed towards the surf break)
Short Range ForecastSome drizzle, heaviest during Sat morning. Warm (max 27°C on Fri morning, min 22°C on Sat night). Winds decreasing (near gales from the WSW on Fri morning, calm by Sun night). | ||||||||||||||||||||||
Friday 28 | Saturday 29 | Sunday 30 | ||||||||||||||||||||
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) | SW 5 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | E 12 | E 12 | E 12 | E 12 | E 11 | E 11 | SE 10 | SE 10 | E 11 | E 11 | E 11 | E 11 | E 11 | E 11 |
Wave Graph  | ||||||||||||||||||||||
 kJ | 89 | 106 | 147 | 104 | 62 | 69 | 126 | 89 | 43 | 42 | 42 | 41 | 23 | 22 | 28 | 27 | 23 | 23 | 23 | 22 | 23 | 22 |
Wind (km/h) | ||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | cross-on | cross-on | cross-on | on | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | glassy |
High Tide | 4:12AM1.51m | 5:34PM1.49m | 4:50AM1.55m | 5:53PM1.51m | 5:29AM1.55m | 6:12PM1.52m | ||||||||||||||||
Low Tide | 10:56AM0.20m | 11:10PM0.68m | 11:26AM0.25m | 11:40PM0.58m | 11:54AM0.33m | |||||||||||||||||
 | | |  | |  |  | | |  | | | | | | | | | | | | | |
 | 5:11 | — | — | — | — | — | — | 5:11 | — | — | — | — | — | — | — | 5:13 | — | — | — | — | — | — |
 | — | — | — | — | 6:15 | — | — | — | — | — | — | — | 6:14 | — | — | — | — | — | — | — | 6:13 | — |
mm | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 27 | 25 | 26 | 27 | 27 | 27 | 26 | 25 | 25 | 24 | 24 | 23 | 22 | 22 | 23 | 23 | 23 | 23 | 24 | 24 | 25 |
Feels °C | 26 | 26 | 18 | 24 | 27 | 27 | 29 | 27 | 26 | 27 | 25 | 24 | 21 | 20 | 21 | 22 | 23 | 23 | 24 | 26 | 27 | 29 |
Swell 1 Height (m) Direction Period (s) | E 13 | E 12 | E 12 | E 12 | E 12 | E 12 | SW 6 | SW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SW 6 | SW 6 | SSW 8 | E 5 | E 5 | SSW 8 | SSW 8 | SSW 8 | SSW 7 | SSW 7 |
| kJ | 78 | 77 | 75 | 72 | 44 | 44 | 64 | 42 | 25 | 25 | 25 | 14 | 8 | 8 | 11 | 14 | 14 | 23 | 23 | 22 | 21 | 21 |
Swell 2 Height (m) Direction Period (s) | S 9 | S 9 | S 8 | SSW 8 | SSW 8 | SSW 8 | E 12 | E 12 | E 12 | E 12 | E 12 | E 12 | E 11 | E 11 | E 11 | SSW 8 | SSW 8 | E 5 | E 5 | E 5 | E 11 | E 11 |
| kJ | 39 | 24 | 22 | 22 | 22 | 22 | 44 | 44 | 43 | 42 | 42 | 41 | 23 | 22 | 21 | 22 | 23 | 8 | 8 | 4 | 23 | 22 |
Swell 3 Height (m) Direction Period (s) | SE 10 | SE 9 | SE 9 | SSE 9 | SW 9 | SSE 9 | SSW 8 | SSW 8 | SSW 8 | SSW 8 | SE 11 | SE 11 | SSW 8 | SSW 8 | SE 10 | SE 10 | E 11 | E 11 | E 11 | E 11 | E 5 | E 5 |
| kJ | 23 | 23 | 23 | 17 | 20 | 8 | 21 | 13 | 20 | 12 | 31 | 31 | 11 | 12 | 28 | 27 | 22 | 23 | 22 | 22 | 5 | 4 |
Wind waves Height (m) Direction Period (s) | SW 5 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | NE 2 | NE 3 | NE 3 | ENE 4 | ENE 4 | ENE 5 | ENE 5 | NNE 3 | NNE 3 | — | — | — | — | SW 5 |
| kJ | 89 | 106 | 147 | 104 | 62 | 69 | 126 | 89 | 1 | 3 | 3 | 12 | 18 | 28 | 27 | 4 | 2 | — | — | — | — | 6 |
Nearest Offshore or Glassy | ||||||||||||||||||||||
Distance (km) | 41 | 41 | 41 | 62 | 41 | 40 | 40 | 40 | 47 | 41 | 41 | 47 | 474 | 79 | 60 | 60 | 60 | 60 | 60 | 60 | 81 | 81 |
Best forecast wave conditions in Izu Islands | ||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||
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