Surf Forecasts:
How big are the waves at Rock Island today (11 Nov):
- Morning surf: Morning surf (11 Nov, local time) - 1.5ft (0.4m), 11s period with SSW swell.
- Afternoon surf: Afternoon surf (11 Nov, local time) - 1.5ft (0.4m), 11s period with SSW swell.
- Evening surf: Evening surf (11 Nov, local time) - 1.5ft (0.4m), 11s period with SSW swell.
The current surf forecast for Rock Island at 4PM is: 0.4m 11s primary swell from a South-southwest direction and 0.2m 8s secondary swell from a East-southeast direction (forecast issued at 08:00am November 11). The wind direction is predicted to be cross-shore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 Nov) | 1.5ft (0.4m) | 11s |
| Afternoon (11 Nov) | 1.5ft (0.4m) | 11s |
| Evening (11 Nov) | 1.5ft (0.4m) | 11s |
Table - waves today at Rock Island. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Very mild (max 18°C on Fri night, min 10°C on Wed morning). Wind will be generally light. | |||||||||||||||||||||||||
Wednesday 11 | Thursday 12 | Friday 13 | Sat 14 | ||||||||||||||||||||||
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 | 12 AM | 3 AM | 6 AM | |
Swell Height Map |  |  |  |  |  |  |  |  |  | ||||||||||||||||
Wave Height (m) Direction Period (s) | SSW 11 | SSW 11 | S 11 | SSW 11 | SSW 11 | SSW 11 | S 11 | S 10 | S 10 | S 10 | SSE 10 | SSE 10 | SSE 9 | SSE 9 | SW 4 | SW 4 | SW 4 | S 4 | S 5 | S 5 | S 5 | S 5 | S 5 | S 5 | S 5 |
Wave Graph  | |||||||||||||||||||||||||
 kJ | 43 | 40 | 61 | 42 | 40 | 39 | 22 | 18 | 18 | 17 | 19 | 18 | 16 | 16 | 8 | 10 | 12 | 3 | 4 | 8 | 13 | 14 | 9 | 9 | 8 |
Wind (km/h) | |||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | cross | cross-on | glassy | glassy | glassy | glassy | glassy | on | on | cross-on | cross-on | cross-on | cross-on | cross-off | cross-off | glassy | glassy | glassy | glassy | off | off | off |
High Tide | 6:24AM1.49m | 4:52PM1.53m | 7:10AM1.48m | 5:23PM1.53m | 7:57AM1.45m | 5:56PM1.51m | |||||||||||||||||||
Low Tide | 11:35AM0.95m | 00:01AM0.03m | 12:10PM1.01m | 00:40AM0.03m | 12:47PM1.05m | 1:21AM0.06m | |||||||||||||||||||
 |  | | | | | | | | | | |  |  | | | |  | | | | | | | | |
 | 6:11 | — | — | — | — | — | — | — | 6:11 | — | — | — | — | — | — | — | 6:13 | — | — | — | — | — | — | — | 6:13 |
 | — | — | — | 4:38 | — | — | — | — | — | — | — | 4:37 | — | — | — | — | — | — | — | 4:37 | — | — | — | — | 4:36 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 10 | 10 | 12 | 13 | 13 | 14 | 14 | 14 | 14 | 13 | 15 | 17 | 17 | 16 | 16 | 16 | 15 | 14 | 16 | 17 | 17 | 18 | 17 | 16 | 15 |
Feels °C | 4 | 4 | 8 | 10 | 10 | 12 | 12 | 12 | 12 | 11 | 12 | 12 | 13 | 12 | 13 | 13 | 13 | 12 | 15 | 15 | 15 | 17 | 15 | 13 | 11 |
Swell 1 Height (m) Direction Period (s) | SSW 11 | SSW 11 | S 11 | SSW 11 | SSW 11 | SSW 11 | S 11 | S 10 | S 10 | S 10 | SSE 10 | SSE 10 | SSE 9 | SSE 9 | SSE 9 | SW 4 | SSW 4 | S 4 | S 5 | S 5 | S 5 | S 5 | S 5 | S 5 | S 5 |
| kJ | 43 | 40 | 61 | 42 | 40 | 39 | 20 | 18 | 18 | 17 | 19 | 18 | 16 | 16 | 8 | 4 | 3 | 3 | 4 | 8 | 13 | 14 | 9 | 9 | 8 |
Swell 2 Height (m) Direction Period (s) | SE 9 | SE 9 | ESE 9 | ESE 8 | ESE 8 | ESE 10 | ESE 9 | SE 9 | SE 8 | SE 8 | SE 9 | SE 8 | SE 8 | E 8 | E 8 | SSE 9 | SSE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | E 8 | E 8 | SE 11 |
| kJ | 13 | 13 | 15 | 7 | 7 | 9 | 9 | 3 | 2 | 3 | 3 | 3 | 2 | 1 | 1 | 7 | 7 | 3 | 3 | 3 | 3 | 3 | 1 | 1 | 5 |
Swell 3 Height (m) Direction Period (s) | S 16 | S 15 | SSW 13 | S 14 | — | S 14 | ESE 11 | E 11 | E 11 | — | E 11 | E 11 | E 11 | E 11 | E 11 | E 11 | E 11 | E 11 | E 10 | E 11 | — | — | E 12 | E 12 | E 8 |
| kJ | 5 | 18 | 57 | 16 | — | 4 | 22 | 3 | 2 | — | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | — | — | 3 | 3 | 1 |
Wind waves Height (m) Direction Period (s) | NE 3 | NNE 2 | NE 3 | — | — | — | — | — | — | — | — | SW 2 | SW 3 | SW 4 | SW 4 | SW 4 | SW 4 | — | — | — | — | — | — | — | — |
| kJ | 1 | 1 | 2 | — | — | — | — | — | — | — | — | 1 | 5 | 6 | 7 | 10 | 12 | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 38 | 38 | 0 | 0 | 16 | 16 | 16 | 18 | 90 | 76 | 76 | 76 | 76 | 55 | 16 | 76 | 54 | 54 | 16 | 54 | 51 | 54 |
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)
Never miss your swells again.
Built by surfers, trusted by millions for over 20 years. The Wavefinder in our app makes it even easier to find where the best waves are breaking. Follow the yellow stars along your coast and get there first.
Scan the QR code to open the Surf‑Forecast app
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