Surf Forecasts:
How big are the waves at Rock Island today (13 Oct):
- Afternoon surf: Afternoon surf (13 Oct, local time) - 2.5ft (0.8m), 12s period with SE swell.
- Evening surf: Evening surf (13 Oct, local time) - 2ft (0.6m), 12s period with SE swell.
The current surf forecast for Rock Island at 6PM is: 0.7m 12s primary swell from a Southeast direction and 0.5m 8s secondary swell from a East direction (forecast issued at 02:00pm October 13). The wind direction is predicted to be onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Oct) | - | - |
| Afternoon (13 Oct) | 2.5ft (0.8m) | 12s |
| Evening (13 Oct) | 2ft (0.6m) | 12s |
Table - waves today at Rock Island. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 26°C on Wed afternoon, min 18°C on Thu morning). Winds decreasing (strong winds from the NNE on Wed night, calm by Fri morning). | ||||||||||||||||||||
Tue 13 | Wednesday 14 | Thursday 15 | ||||||||||||||||||
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) | SE 13 | SE 12 | SE 12 | SE 12 | SE 11 | SE 10 | SE 10 | SE 10 | SSW 4 | SSW 5 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | ESE 8 | SE 8 | ESE 8 | ESE 8 | SE 8 | E 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 277 | 184 | 141 | 106 | 57 | 15 | 25 | 25 | 35 | 83 | 85 | 24 | 12 | 4 | 7 | 3 | 6 | 6 | 9 | 10 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | on | on | on | on | on | cross-on | cross-on | on | cross-on | off | off | off | cross-off | cross-off | cross-off | cross | cross | cross-off |
High Tide | 5:35PM1.53m | 7:07AM1.52m | 6:00PM1.54m | 7:54AM1.46m | 6:27PM1.53m | |||||||||||||||
Low Tide | 12:00PM0.77m | 00:19AM0.18m | 12:31PM0.87m | 00:57AM0.15m | 1:03PM0.96m | |||||||||||||||
 |  |  | | | | |  | | | |  | | | | | | | |  | |
 | — | — | — | — | — | 5:46 | — | — | — | — | — | — | — | 5:47 | — | — | — | — | — | — |
 | — | 5:09 | — | — | — | — | — | — | — | 5:08 | — | — | — | — | — | — | — | 5:07 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 24 | 23 | 23 | 22 | 22 | 22 | 23 | 25 | 26 | 26 | 22 | 21 | 20 | 19 | 18 | 19 | 19 | 19 | 19 |
Feels °C | 21 | 25 | 24 | 24 | 22 | 21 | 20 | 20 | 22 | 24 | 27 | 15 | 16 | 15 | 16 | 15 | 17 | 17 | 17 | 18 |
Swell 1 Height (m) Direction Period (s) | SE 13 | SE 12 | SE 12 | SE 12 | SE 11 | SE 10 | SE 10 | SE 10 | SE 9 | ESE 9 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | ESE 8 | SE 8 | ESE 8 | ESE 8 | SE 8 | SE 7 |
| kJ | 277 | 184 | 141 | 106 | 57 | 15 | 25 | 25 | 13 | 8 | 60 | 24 | 12 | 4 | 7 | 3 | 6 | 6 | 9 | 7 |
Swell 2 Height (m) Direction Period (s) | E 8 | E 8 | E 8 | E 8 | — | ESE 11 | — | SE 9 | E 10 | E 10 | ESE 9 | ESE 9 | ESE 8 | SE 8 | — | — | S 5 | SW 5 | — | E 8 |
| kJ | 34 | 33 | 33 | 21 | — | 12 | — | 3 | 2 | 7 | 8 | 7 | 7 | 3 | — | — | 1 | 1 | — | 10 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | E 10 | E 10 | E 9 | — | SW 6 | — | W 7 | SW 6 | E 11 | E 11 |
| kJ | — | — | — | — | — | — | — | — | — | — | 2 | 2 | 2 | — | 2 | — | 1 | 1 | 3 | 9 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | SW 3 | SW 4 | SSW 4 | SSW 5 | SW 5 | NNE 2 | NE 3 | NE 3 | NE 3 | NE 3 | ENE 3 | — | — | — |
| kJ | — | — | — | — | — | — | 3 | 11 | 35 | 83 | 85 | 2 | 5 | 5 | 5 | 2 | 1 | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 0 | 0 | 12 | 14 | 18 | 38 | 38 | 142 | 142 | 27 | 2 | 54 | 142 | 514 | 145 | 145 | 145 | 38 | 38 | 38 |
Best forecast wave conditions in Kanagawa | ||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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