Surf Forecasts:
How big are the waves at Rock Island today (14 Oct):
- Afternoon surf: Afternoon surf (14 Oct, local time) - 3ft (0.9m), 5s period with SSW swell.
- Evening surf: Evening surf (14 Oct, local time) - 1.5ft (0.4m), 9s period with SE swell.
The current surf forecast for Rock Island at 10PM is: 0.4m 9s primary swell from a Southeast direction and 0.4m 5s secondary swell from a South-southwest direction, 0.2m 8s secondary swell from a East-southeast direction (forecast issued at 02:00pm October 14). An open ocean swell of 0.4m 3s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (14 Oct) | - | - |
| Afternoon (14 Oct) | 3ft (0.9m) | 5s |
| Evening (14 Oct) | 1.5ft (0.4m) | 9s |
Table - waves today at Rock Island. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 26°C on Wed afternoon, min 17°C on Thu morning). Winds decreasing (fresh winds from the NNE on Wed night, calm by Fri morning). | ||||||||||||||||||||
Wed 14 | Thursday 15 | Friday 16 | ||||||||||||||||||
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 | |
Swell Height Map |  |  |  |  |  |  |  |  | ||||||||||||
Wave Height (m) Direction Period (s) | SW 4 | SSW 5 | SW 5 | SE 9 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 10 | ESE 8 | E 11 | ESE 8 | SE 6 | SE 6 | SSE 6 | SSE 5 | SSE 5 | SSE 5 |
Wave Graph  | ||||||||||||||||||||
 kJ | 46 | 39 | 58 | 28 | 7 | 7 | 7 | 6 | 6 | 7 | 9 | 78 | 9 | 13 | 7 | 5 | 3 | 3 | 2 | 3 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross-off | off | off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross-off | glassy | glassy | cross-off | off | glassy | on | glassy | glassy |
High Tide | 6:00PM1.54m | 7:54AM1.46m | 6:27PM1.53m | 8:47AM1.40m | 6:56PM1.50m | |||||||||||||||
Low Tide | 12:31PM0.87m | 00:57AM0.15m | 1:03PM0.96m | 1:38AM0.17m | 1:36PM1.04m | |||||||||||||||
 | |  | |  |  |  |  | | | | | | | | | | | | | |
 | — | — | — | — | — | 5:47 | — | — | — | — | — | — | — | 5:47 | — | — | — | — | — | — |
 | — | 5:08 | — | — | — | — | — | — | — | 5:07 | — | — | — | — | — | — | — | 5:06 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 26 | 26 | 22 | 20 | 19 | 18 | 17 | 18 | 19 | 19 | 19 | 19 | 19 | 19 | 20 | 21 | 22 | 22 | 22 |
Feels °C | 22 | 26 | 25 | 16 | 15 | 15 | 15 | 14 | 16 | 17 | 18 | 18 | 19 | 19 | 19 | 20 | 22 | 22 | 24 | 24 |
Swell 1 Height (m) Direction Period (s) | SE 9 | ESE 9 | SSW 5 | S 5 | SSW 5 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | SE 7 | SE 7 | SE 6 | SE 6 | SE 6 | SSE 6 | SSE 5 | SSE 5 | SSE 5 |
| kJ | 13 | 8 | 27 | 13 | 5 | 7 | 7 | 6 | 6 | 7 | 7 | 14 | 7 | 6 | 6 | 5 | 3 | 3 | 2 | 2 |
Swell 2 Height (m) Direction Period (s) | E 10 | E 10 | ESE 9 | ESE 9 | ESE 8 | S 4 | SW 6 | — | — | — | ESE 10 | E 11 | E 8 | ESE 8 | SE 8 | SE 8 | E 9 | E 7 | S 10 | SE 8 |
| kJ | 2 | 7 | 8 | 7 | 7 | 2 | 2 | — | — | — | 9 | 2 | 5 | 13 | 3 | 3 | 2 | 1 | 2 | 3 |
Swell 3 Height (m) Direction Period (s) | — | — | E 10 | SE 9 | E 9 | SW 6 | — | — | — | — | E 11 | W 6 | E 11 | ESE 8 | ESE 8 | S 10 | S 11 | E 9 | SE 7 | S 10 |
| kJ | — | — | 2 | 28 | 2 | 2 | — | — | — | — | 2 | 1 | 9 | 7 | 7 | 2 | 2 | 2 | 2 | 2 |
Wind waves Height (m) Direction Period (s) | SW 4 | SSW 5 | SW 5 | NNE 3 | NE 3 | NNE 3 | NE 3 | NE 3 | ENE 2 | — | — | ESE 8 | — | — | — | — | — | — | — | — |
| kJ | 46 | 39 | 58 | 2 | 5 | 8 | 5 | 1 | 1 | — | — | 78 | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 142 | 38 | 2 | 90 | 142 | 514 | 509 | 514 | 145 | 145 | 38 | 0 | 51 | 54 | 54 | 54 | 55 | 55 | 55 | 55 |
Best forecast wave conditions in Kanagawa | ||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||
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