Surf Forecasts:
How big are the waves at Rock Island today (12 Nov):
- Morning surf: Morning surf (12 Nov, local time) - 1ft (0.3m), 10s period with S swell.
- Afternoon surf: Afternoon surf (12 Nov, local time) - 1ft (0.3m), 9s period with SSE swell.
- Evening surf: Evening surf (12 Nov, local time) - 1ft (0.3m), 9s period with SSE swell.
The current surf forecast for Rock Island at 4AM is: 0.3m 10s primary swell from a South direction and 0.1m 8s secondary swell from a Southeast direction (forecast issued at 08:00pm November 11). The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 Nov) | 1ft (0.3m) | 10s |
| Afternoon (12 Nov) | 1ft (0.3m) | 9s |
| Evening (12 Nov) | 1ft (0.3m) | 9s |
Table - waves today at Rock Island. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Very mild (max 18°C on Thu afternoon, min 14°C on Wed night). Wind will be generally light. | |||||||||||||||||||||
Wed 11 | Thursday 12 | Friday 13 | Sat 14 | ||||||||||||||||||
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 | S 10 | S 10 | S 10 | SSE 10 | SSE 9 | SSE 9 | SSE 9 | SW 4 | SSE 9 | SW 4 | SW 4 | SSW 4 | E 11 | SSW 4 | SE 8 | SSW 5 | SE 8 | E 11 |
Wave Graph  | |||||||||||||||||||||
 kJ | 40 | 39 | 20 | 18 | 18 | 17 | 19 | 17 | 16 | 16 | 8 | 8 | 15 | 12 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | on | cross-on | cross-off | on | cross-on | on | cross-on | cross-on | cross-on | cross | cross-off | glassy | glassy | cross | glassy | glassy | off | off |
High Tide | 4:52PM1.53m | 7:10AM1.48m | 5:23PM1.53m | 7:57AM1.45m | 5:56PM1.51m | ||||||||||||||||
Low Tide | 00:01AM0.03m | 12:10PM1.01m | 00:40AM0.03m | 12:47PM1.05m | 1:21AM0.06m | ||||||||||||||||
 | |  | | |  | |  |  | | | | | | | | | | | | | |
 | — | — | — | — | 6:11 | — | — | — | — | — | — | — | 6:13 | — | — | — | — | — | — | — | 6:13 |
 | — | — | — | — | — | — | — | 4:37 | — | — | — | — | — | — | — | 4:37 | — | — | — | — | 4:36 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 14 | 14 | 15 | 14 | 14 | 16 | 18 | 17 | 17 | 16 | 16 | 15 | 14 | 16 | 17 | 17 | 17 | 17 | 16 | 15 |
Feels °C | 11 | 11 | 11 | 12 | 11 | 11 | 13 | 12 | 12 | 13 | 12 | 13 | 13 | 11 | 15 | 15 | 15 | 16 | 15 | 13 | 12 |
Swell 1 Height (m) Direction Period (s) | SSW 11 | SSW 11 | S 11 | S 10 | S 10 | S 10 | SSE 10 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | S 4 | SSW 4 | SW 4 | SSW 4 | SSW 4 | SSW 4 | SW 4 | SSW 5 | SW 4 | SE 5 |
| kJ | 40 | 39 | 20 | 18 | 18 | 17 | 19 | 17 | 16 | 16 | 8 | 3 | 7 | 4 | 3 | 1 | 1 | 1 | 2 | 1 | 1 |
Swell 2 Height (m) Direction Period (s) | ESE 8 | ESE 10 | ESE 9 | SE 9 | SE 8 | SE 8 | SE 9 | SE 8 | SE 8 | SE 8 | E 8 | SSE 9 | SSE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 5 | — |
| kJ | 7 | 9 | 9 | 3 | 2 | 3 | 3 | 3 | 2 | 3 | 1 | 8 | 7 | 3 | 3 | 3 | 3 | 3 | 3 | 1 | — |
Swell 3 Height (m) Direction Period (s) | — | S 14 | — | E 11 | E 11 | E 11 | E 11 | E 11 | E 11 | E 11 | E 10 | E 8 | — | — | E 11 | E 11 | — | — | SE 5 | SE 8 | E 11 |
| kJ | — | 4 | — | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | — | — | 2 | 2 | — | — | 1 | 3 | 3 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | SW 3 | SW 3 | SW 4 | SW 4 | SW 4 | SW 4 | SW 4 | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | 2 | 6 | 6 | 7 | 4 | 15 | 12 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 16 | 7 | 38 | 54 | 18 | 16 | 76 | 90 | 77 | 76 | 76 | 76 | 76 | 76 | 55 | 54 | 51 | 51 | 51 | 54 | 54 |
Best forecast wave conditions in Kanagawa | |||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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