Surf Forecasts:
How big are the waves at Rock Island today (26 Oct):
- Afternoon surf: Afternoon surf (26 Oct, local time) - 1.5ft (0.5m), 7s period with S swell.
- Evening surf: Evening surf (26 Oct, local time) - 1.5ft (0.4m), 7s period with SSW swell.
The current surf forecast for Rock Island at 6PM is: 0.4m 7s primary swell from a South-southwest direction and 0.4m 7s secondary swell from a Southeast direction (forecast issued at 02:00pm October 26). An open ocean swell of 0.6m 3s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (26 Oct) | - | - |
| Afternoon (26 Oct) | 1.5ft (0.5m) | 7s |
| Evening (26 Oct) | 1.5ft (0.4m) | 7s |
Table - waves today at Rock Island. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 33mm), heaviest during Mon afternoon. Very mild (max 19°C on Mon afternoon, min 12°C on Wed night). Mainly strong winds. | ||||||||||||||||||||
Mon 26 | Tuesday 27 | Wednesday 28 | ||||||||||||||||||
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) | S 7 | S 7 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | SSW 8 | SSW 7 | S 7 | S 7 | S 7 |
Wave Graph  | ||||||||||||||||||||
 kJ | 34 | 24 | 15 | 15 | 16 | 18 | 29 | 29 | 29 | 42 | 43 | 60 | 82 | 68 | 31 | 13 | 11 | 5 | 5 | 5 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | off | off | off | off | off | off | cross-off | cross-off | cross-off | cross-off | off | off | off | cross-off | glassy | cross-on | cross-off | off |
High Tide | 4:33PM1.50m | 6:00AM1.53m | 4:59PM1.53m | 6:45AM1.52m | 5:26PM1.54m | |||||||||||||||
Low Tide | 10:56AM0.75m | 11:14PM0.19m | 11:30AM0.83m | 11:51PM0.12m | 12:03PM0.91m | |||||||||||||||
 | |  |  | | |  | |  |  |  | | |  |  |  | | | |  | |
 | — | — | — | — | — | 5:56 | — | — | — | — | — | — | — | 5:58 | — | — | — | — | — | — |
 | — | 4:53 | — | — | — | — | — | — | — | 4:52 | — | — | — | — | — | — | — | 4:52 | — | — |
mm | 10 | 10 | 9 | 3 | 1 | 1 | 2 | 3 | 2 | — | — | — | 1 | 1 | — | — | — | — | — | — |
Temp °C | 19 | 19 | 18 | 17 | 17 | 17 | 17 | 17 | 18 | 19 | 19 | 19 | 19 | 19 | 15 | 16 | 17 | 18 | 17 | 15 |
Feels °C | 18 | 17 | 15 | 12 | 12 | 12 | 14 | 15 | 18 | 19 | 19 | 19 | 19 | 11 | 5 | 8 | 15 | 15 | 11 | 10 |
Swell 1 Height (m) Direction Period (s) | S 7 | S 7 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | SSW 8 | SSW 7 | S 7 | S 7 | S 7 |
| kJ | 34 | 24 | 15 | 15 | 16 | 18 | 29 | 29 | 29 | 42 | 43 | 60 | 82 | 68 | 31 | 13 | 11 | 4 | 4 | 4 |
Swell 2 Height (m) Direction Period (s) | SSW 11 | SE 6 | SE 7 | SE 7 | SE 6 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 10 | ESE 10 | SE 10 | SE 10 | SE 10 | SSW 9 | SSE 7 | SE 7 | N 3 | SE 11 | SE 11 |
| kJ | 11 | 6 | 11 | 7 | 6 | 9 | 8 | 8 | 8 | 9 | 10 | 4 | 4 | 4 | 8 | 5 | 2 | 1 | 5 | 5 |
Swell 3 Height (m) Direction Period (s) | SE 10 | SW 11 | SW 11 | SW 10 | SE 10 | SE 6 | — | — | — | S 9 | S 13 | S 13 | S 13 | — | SE 11 | SW 9 | SW 8 | SE 11 | — | — |
| kJ | 4 | 4 | 4 | 4 | 4 | 2 | — | — | — | 1 | 3 | 3 | 3 | — | 4 | 3 | 3 | 5 | — | — |
Wind waves Height (m) Direction Period (s) | ENE 2 | NE 3 | NNE 3 | N 3 | N 3 | N 3 | N 3 | — | — | — | — | — | — | NNE 2 | N 3 | N 3 | N 3 | — | NE 3 | NNE 3 |
| kJ | 1 | 2 | 9 | 8 | 8 | 6 | 2 | — | — | — | — | — | — | 1 | 4 | 5 | 3 | — | 2 | 3 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 38 | 38 | 487 | 470 | 86 | 38 | 38 | 54 | 38 | 0 | 0 | 0 | 0 | 61 | 514 | 64 | 61 | 51 | 61 | 55 |
Best forecast wave conditions in Kanagawa | ||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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