Surf Forecasts:
How big are the waves at Rock Island today (16 Jun):
- Afternoon surf: Afternoon surf (16 Jun, local time) - 1.5ft (0.4m), 7s period with SE swell.
- Evening surf: Evening surf (16 Jun, local time) - 0.5ft (0.2m), 7s period with SSE swell.
The current surf forecast for Rock Island at 9PM is: 0.2m 7s primary swell from a South-southeast direction and 0.2m 7s secondary swell from a South-southwest direction, 0.3m 3s secondary swell from a South direction (forecast issued at 02:00pm June 16). The wind direction is predicted to be onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 Jun) | - | - |
| Afternoon (16 Jun) | 1.5ft (0.4m) | 7s |
| Evening (16 Jun) | 0.5ft (0.2m) | 7s |
Table - waves today at Rock Island. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastSome drizzle, heaviest during Wed night. Warm (max 25°C on Thu afternoon, min 20°C on Wed night). Wind will be generally light. | ||||||||||||||||||||||||
Tue 16 | Wednesday 17 | Thursday 18 | Fri 19 | |||||||||||||||||||||
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 | 12 AM | 3 AM | 6 AM | 9 AM | |
Swell Height Map |  |  |  |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | SSE 8 | SE 7 | SE 7 | SSE 7 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSE 6 | S 18 | S 3 | S 4 | SE 5 | S 5 | S 6 | S 6 | SSW 7 | SSE 6 | SSE 6 | SSW 10 | SSE 7 | S 6 | S 6 | S 6 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 23 | 14 | 12 | 5 | 10 | 5 | 5 | 5 | 6 | 6 | 4 | 4 | 4 | 20 | 33 | 54 | 35 | 17 | 19 | 36 | 34 | 28 | 20 | 20 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | on | on | on | cross-on | on | on | cross-on | cross-on | cross-off | off | off | off | cross-off | cross-off | cross-off | cross-off | glassy | cross-off | cross-off | cross |
High Tide | 7:00PM1.41m | 4:52AM1.47m | 7:39PM1.41m | 5:34AM1.46m | 8:16PM1.39m | 6:20AM1.42m | ||||||||||||||||||
Low Tide | 11:37AM-0.08m | 11:48PM1.02m | 12:17PM-0.07m | 00:30AM1.01m | 12:57PM-0.03m | 1:14AM0.98m | ||||||||||||||||||
 |  |  |  | |  | | | | | | | | |  | | | | |  | | | | | |
 | — | — | — | — | — | 4:26 | — | — | — | — | — | — | — | 4:26 | — | — | — | — | — | — | — | 4:26 | — | — |
 | — | — | 6:58 | — | — | — | — | — | — | — | 6:58 | — | — | — | — | — | — | — | 6:58 | — | — | — | — | 6:59 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 22 | 21 | 21 | 21 | 21 | 21 | 22 | 22 | 21 | 21 | 21 | 20 | 20 | 20 | 22 | 24 | 24 | 25 | 23 | 22 | 22 | 21 | 23 |
Feels °C | 21 | 21 | 19 | 20 | 20 | 20 | 22 | 23 | 20 | 19 | 21 | 21 | 21 | 19 | 18 | 20 | 22 | 23 | 27 | 24 | 24 | 24 | 23 | 25 |
Swell 1 Height (m) Direction Period (s) | SSE 8 | SE 7 | SE 7 | SSE 7 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | S 11 | SW 7 | S 4 | S 4 | S 5 | S 6 | S 6 | SSW 7 | SSE 6 | SSE 6 | SSE 6 | SSE 7 | S 6 | S 6 | S 6 |
| kJ | 23 | 14 | 12 | 5 | 10 | 5 | 5 | 5 | 4 | 2 | 2 | 2 | 4 | 20 | 33 | 54 | 35 | 12 | 19 | 32 | 34 | 28 | 20 | 20 |
Swell 2 Height (m) Direction Period (s) | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSE 7 | SSE 6 | SE 6 | SE 6 | S 11 | E 9 | S 11 | SE 10 | SE 5 | SE 10 | SSW 7 | SE 10 | SE 6 | SSW 6 | SSW 6 | SSW 10 | SSW 9 | SW 9 | SSW 8 | SSE 10 |
| kJ | 11 | 10 | 10 | 5 | 4 | 4 | 1 | 1 | 2 | 2 | 2 | 4 | 3 | 4 | 21 | 4 | 8 | 17 | 8 | 36 | 30 | 12 | 6 | 10 |
Swell 3 Height (m) Direction Period (s) | — | S 20 | S 20 | E 11 | SE 9 | E 9 | E 11 | SE 9 | E 9 | S 18 | SE 10 | SW 7 | SW 8 | SE 16 | SE 10 | S 16 | SE 10 | SE 10 | SSW 12 | SSE 9 | SE 9 | SSW 7 | SE 11 | SSW 8 |
| kJ | — | 8 | 8 | 2 | 3 | 2 | 2 | 3 | 2 | 6 | 4 | 2 | 3 | 10 | 4 | 5 | 4 | 4 | 13 | 8 | 3 | 5 | 4 | 6 |
Wind waves Height (m) Direction Period (s) | — | — | S 3 | S 3 | S 3 | — | — | — | SSE 6 | S 3 | S 3 | — | — | — | N 2 | N 2 | NNE 3 | NE 3 | NNE 3 | — | — | — | — | — |
| kJ | — | — | 2 | 1 | 1 | — | — | — | 6 | 4 | 3 | — | — | — | 1 | 1 | 2 | 2 | 2 | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 18 | 77 | 76 | 76 | 76 | 76 | 76 | 77 | 77 | 77 | 77 | 487 | 38 | 145 | 0 | 0 | 55 | 51 | 38 | 0 | 0 | 38 | 38 | 16 |
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