Surf Forecasts:
How big are the waves at Rock Island today (26 Jun):
- Morning surf: Morning surf (26 Jun, local time) - 1.5ft (0.4m), 13s period with SW swell.
- Afternoon surf: Afternoon surf (26 Jun, local time) - 5.5ft (1.7m), 6s period with SSW swell.
- Evening surf: Evening surf (26 Jun, local time) - 3.5ft (1.0m), 6s period with SSW swell.
The current surf forecast for Rock Island at 2AM is: 0.5m 13s primary swell from a Southwest direction and 0.7m 7s secondary swell from a South direction (forecast issued at 08:00pm June 25). The wind direction is predicted to be cross-offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (26 Jun) | 1.5ft (0.4m) | 13s |
| Afternoon (26 Jun) | 5.5ft (1.7m) | 6s |
| Evening (26 Jun) | 3.5ft (1.0m) | 6s |
Table - waves today at Rock Island. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 154mm), heaviest during Sat morning. Warm (max 26°C on Fri morning, min 19°C on Thu night). Winds increasing (calm on Thu night, strong winds from the N by Sat morning). | ||||||||||||||||||||||||
Thu 25 | Friday 26 | Saturday 27 | Sunday 28 | |||||||||||||||||||||
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) | SW 13 | S 7 | SW 13 | SW 13 | SW 14 | SW 13 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SW 13 | SW 13 | S 7 | S 10 | S 10 | S 13 | S 12 | S 11 | S 11 | S 11 | S 12 | S 11 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 47 | 61 | 80 | 80 | 91 | 56 | 165 | 205 | 167 | 88 | 56 | 55 | 28 | 27 | 56 | 1024 | 730 | 1121 | 748 | 501 | 573 | 1068 | 976 | 533 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | off | cross-on | on | on | on | on | on | cross-on | cross-on | on | cross-on | cross-off | off | cross-off | cross-on | cross | off | off | cross-off | off | cross-on | cross-on |
High Tide | 00:40AM1.34m | 3:20PM1.19m | 1:24AM1.37m | 4:24PM1.27m | 2:09AM1.41m | |||||||||||||||||||
Low Tide | 6:41PM0.88m | 8:07AM0.33m | 7:50PM0.97m | 8:58AM0.20m | 8:55PM1.03m | 9:46AM0.09m | ||||||||||||||||||
 |  | |  |  | |  | | | | | |  |  | |  | | |  | | | | | | |
 | — | — | — | 4:28 | — | — | — | — | — | — | — | 4:28 | — | — | — | — | — | — | — | 4:28 | — | — | — | — |
 | 7:00 | — | — | — | — | — | — | — | 7:00 | — | — | — | — | — | — | — | 7:00 | — | — | — | — | — | — | 7:00 |
mm | 2 | 1 | 3 | 7 | — | — | — | — | 1 | 4 | 5 | 1 | 7 | 12 | 61 | 18 | — | 2 | 24 | 8 | — | — | — | — |
Temp °C | 20 | 20 | 19 | 19 | 21 | 24 | 26 | 26 | 24 | 23 | 24 | 22 | 21 | 21 | 22 | 24 | 23 | 22 | 22 | 22 | 22 | 23 | 22 | 22 |
Feels °C | 19 | 20 | 20 | 21 | 22 | 23 | 25 | 23 | 23 | 20 | 23 | 21 | 22 | 23 | 18 | 25 | 24 | 24 | 22 | 18 | 20 | 23 | 24 | 22 |
Swell 1 Height (m) Direction Period (s) | S 7 | S 7 | S 7 | S 7 | SW 14 | SW 13 | SE 10 | SE 11 | SW 15 | SSW 6 | SW 11 | SW 13 | S 6 | S 6 | S 7 | S 10 | S 10 | S 13 | S 12 | S 11 | S 11 | S 11 | S 12 | S 11 |
| kJ | 47 | 60 | 44 | 31 | 91 | 56 | 4 | 4 | 8 | 88 | 20 | 28 | 19 | 17 | 56 | 1024 | 730 | 1121 | 748 | 501 | 573 | 1068 | 976 | 533 |
Swell 2 Height (m) Direction Period (s) | SW 13 | SW 13 | SW 13 | SW 13 | SE 6 | SE 10 | — | — | SE 11 | SW 12 | SSW 14 | SSW 10 | SSW 7 | SW 13 | SW 13 | N 4 | SSW 15 | E 16 | E 16 | E 16 | S 14 | — | E 16 | E 15 |
| kJ | 45 | 61 | 80 | 80 | 9 | 4 | — | — | 4 | 21 | 18 | 10 | 10 | 27 | 7 | 8 | 167 | 5 | 5 | 5 | 15 | — | 5 | 4 |
Swell 3 Height (m) Direction Period (s) | SE 10 | SSW 9 | SSW 9 | SE 10 | SE 10 | — | SE 18 | SE 18 | — | SW 14 | SE 10 | SE 10 | SW 13 | SSW 6 | SE 10 | E 16 | E 16 | SE 16 | SE 16 | SE 16 | E 16 | E 16 | — | SE 15 |
| kJ | 4 | 8 | 8 | 4 | 4 | — | 12 | 12 | — | 32 | 4 | 4 | 28 | 4 | 4 | 5 | 5 | 10 | 10 | 10 | 5 | 5 | — | 9 |
Wind waves Height (m) Direction Period (s) | NNE 3 | N 3 | — | — | S 6 | SSW 4 | SSW 6 | SSW 6 | SSW 6 | — | SSW 6 | SSW 6 | — | E 8 | NNE 4 | NW 4 | — | — | — | NE 3 | NNE 4 | NNE 4 | — | — |
| kJ | 1 | 1 | — | — | 22 | 49 | 165 | 205 | 167 | — | 56 | 55 | — | 1 | 31 | 20 | — | — | — | 2 | 23 | 5 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 10 | 0 | 2 | 14 | 470 | 228 | 228 | 92 | 76 | 14 | 76 | 64 | 77 | 509 | 0 | 38 | 12 | 0 | 136 | 10 | 0 | 6 | 38 |
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