Surf Forecasts:
How big are the waves at Rock Island today (10 Jun):
- Morning surf: Morning surf (10 Jun, local time) - 2ft (0.6m), 8s period with SSW swell.
- Afternoon surf: Afternoon surf (10 Jun, local time) - 1.5ft (0.5m), 8s period with S swell.
- Evening surf: Evening surf (10 Jun, local time) - 1.5ft (0.5m), 9s period with S swell.
The current surf forecast for Rock Island at 3AM is: 0.5m 9s primary swell from a South-southwest direction and 0.8m 5s secondary swell from a South-southwest direction (forecast issued at 08:00pm June 09). The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (10 Jun) | 2ft (0.6m) | 8s |
| Afternoon (10 Jun) | 1.5ft (0.5m) | 8s |
| Evening (10 Jun) | 1.5ft (0.5m) | 9s |
Table - waves today at Rock Island. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 6mm), mostly falling on Thu night. Warm (max 22°C on Thu afternoon, min 18°C on Wed morning). Wind will be generally light. | ||||||||||||||||||||||||
Tue 9 | Wednesday 10 | Thursday 11 | Friday 12 | |||||||||||||||||||||
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 | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | |
Swell Height Map |  |  |  |  |  |  |  |  |  | |||||||||||||||
Wave Height (m) Direction Period (s) | SSE 7 | S 8 | SSW 9 | SSW 9 | SSW 8 | SSW 8 | S 8 | S 8 | SSW 8 | S 9 | S 8 | S 8 | S 8 | S 8 | S 9 | SSW 9 | SSW 9 | SSW 9 | SSE 7 | SSW 9 | SSW 9 | SW 9 | S 7 | SSE 7 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 15 | 29 | 62 | 43 | 101 | 53 | 33 | 29 | 19 | 42 | 34 | 49 | 49 | 50 | 103 | 65 | 46 | 32 | 42 | 31 | 30 | 19 | 25 | 9 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross-on | cross-on | cross-off | off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | on | on | cross-on | cross-on | cross-on | glassy | off | cross-on | cross-on | on |
High Tide | 00:17AM1.28m | 1:16PM1.09m | 00:56AM1.30m | 2:42PM1.15m | 1:35AM1.33m | |||||||||||||||||||
Low Tide | 5:37PM0.61m | 7:04AM0.56m | 6:41PM0.73m | 7:59AM0.41m | 7:45PM0.83m | 8:48AM0.26m | ||||||||||||||||||
 |  | | | | | | |  |  |  | | | |  | | |  | | |  |  | | | |
 | — | — | — | 4:26 | — | — | — | — | — | — | — | 4:26 | — | — | — | — | — | — | — | 4:26 | — | — | — | — |
 | 6:54 | — | — | — | — | — | — | — | 6:54 | — | — | — | — | — | — | — | 6:55 | — | — | — | — | — | — | 6:55 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 1 | 1 | 1 | 1 | — |
Temp °C | 21 | 21 | 20 | 20 | 20 | 18 | 18 | 19 | 20 | 19 | 18 | 18 | 18 | 19 | 20 | 22 | 21 | 21 | 20 | 20 | 20 | 20 | 21 | 22 |
Feels °C | 21 | 19 | 16 | 19 | 19 | 14 | 14 | 17 | 19 | 18 | 18 | 18 | 17 | 19 | 19 | 19 | 19 | 20 | 20 | 22 | 21 | 20 | 20 | 20 |
Swell 1 Height (m) Direction Period (s) | SSE 7 | S 8 | SSW 9 | SSW 5 | SSW 8 | SSW 8 | S 8 | S 8 | SSW 8 | S 9 | S 8 | S 8 | S 8 | S 8 | S 9 | SSW 9 | SSW 9 | SSW 9 | SSE 7 | SSE 7 | S 7 | SSE 7 | S 7 | SSE 7 |
| kJ | 15 | 29 | 62 | 30 | 101 | 53 | 33 | 29 | 19 | 42 | 34 | 49 | 49 | 50 | 103 | 65 | 46 | 32 | 42 | 30 | 27 | 17 | 25 | 9 |
Swell 2 Height (m) Direction Period (s) | SSW 8 | SE 9 | SE 9 | SSW 9 | E 8 | — | SSE 7 | — | S 10 | SW 8 | SSW 11 | SW 11 | SSW 12 | SSW 12 | SSE 7 | E 7 | SSE 7 | S 7 | SSW 9 | SSW 9 | SSW 9 | SW 9 | SW 9 | SSW 8 |
| kJ | 7 | 3 | 3 | 43 | 5 | — | 9 | — | 8 | 3 | 12 | 5 | 14 | 14 | 33 | 4 | 21 | 27 | 32 | 31 | 30 | 19 | 12 | 7 |
Swell 3 Height (m) Direction Period (s) | SW 8 | — | — | — | SE 9 | SE 9 | E 8 | E 8 | — | SE 8 | E 7 | E 7 | SSW 12 | E 7 | E 7 | E 15 | S 12 | E 7 | E 7 | E 7 | E 7 | E 7 | S 12 | S 7 |
| kJ | 3 | — | — | — | 3 | 3 | 5 | 1 | — | 3 | 4 | 4 | 28 | 8 | 4 | 4 | 3 | 4 | 4 | 4 | 4 | 4 | 3 | 4 |
Wind waves Height (m) Direction Period (s) | — | S 3 | SSW 4 | — | — | NNE 3 | NNE 3 | NE 3 | ENE 3 | ENE 3 | — | — | — | — | — | SSE 7 | SSE 3 | SSE 3 | — | — | — | — | — | SSE 2 |
| kJ | — | 5 | 26 | — | — | 2 | 6 | 4 | 1 | 2 | — | — | — | — | — | 28 | 3 | 3 | — | — | — | — | — | 1 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 76 | 76 | 38 | 10 | 2 | 54 | 38 | 51 | 51 | 38 | 0 | 0 | 0 | 0 | 18 | 64 | 64 | 77 | 14 | 0 | 0 | 64 | 77 | 77 |
Best forecast wave conditions in Kanagawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Rock Island surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Nearest