Surf Forecasts:
How big are the waves at Rock Island today (08 Jun):
- Afternoon surf: Afternoon surf (08 Jun, local time) - 3.5ft (1.0m), 8s period with S swell.
- Evening surf: Evening surf (08 Jun, local time) - 2.5ft (0.8m), 8s period with SSE swell.
The current surf forecast for Rock Island at 11PM is: 0.7m 8s primary swell from a South-southeast direction and 0.4m 9s secondary swell from a Southwest direction, 0.3m 3s secondary swell from a South-southwest direction (forecast issued at 02:00pm June 08). The wind direction is predicted to be onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (08 Jun) | - | - |
| Afternoon (08 Jun) | 3.5ft (1.0m) | 8s |
| Evening (08 Jun) | 2.5ft (0.8m) | 8s |
Table - waves today at Rock Island. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 13mm), heaviest on Mon night. Warm (max 21°C on Mon afternoon, min 18°C on Wed morning). Wind will be generally light. | ||||||||||||||||||||||||
Mon 8 | Tuesday 9 | Wednesday 10 | Thu 11 | |||||||||||||||||||||
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 | 9 AM | |
Swell Height Map |  |  |  |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | SSW 9 | S 8 | SSE 8 | SSE 8 | SSE 8 | S 7 | S 7 | SSE 7 | S 7 | S 7 | S 6 | S 7 | S 9 | S 9 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | SW 8 | SW 8 | SSW 9 | S 8 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 92 | 137 | 115 | 81 | 67 | 40 | 51 | 16 | 21 | 21 | 12 | 17 | 59 | 54 | 50 | 48 | 46 | 49 | 51 | 36 | 18 | 18 | 29 | 36 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | off | on | on | cross-off | off | off | off | on | cross-on | cross-on | glassy | cross-off | off | cross-off | off | cross-off | cross-off | off | off | off | off | off |
High Tide | 9:56AM1.11m | 11:37PM1.27m | 11:35AM1.07m | 00:17AM1.28m | 1:16PM1.09m | 00:56AM1.30m | ||||||||||||||||||
Low Tide | 4:36PM0.47m | 5:59AM0.70m | 5:37PM0.61m | 7:04AM0.56m | 6:41PM0.73m | 7:59AM0.41m | ||||||||||||||||||
 |  | |  | |  |  |  | | | | | | | | | | | | | | | | | |
 | — | — | — | — | — | 4:26 | — | — | — | — | — | — | — | 4:26 | — | — | — | — | — | — | — | 4:26 | — | — |
 | — | — | 6:53 | — | — | — | — | — | — | — | 6:54 | — | — | — | — | — | — | — | 6:54 | — | — | — | — | 6:55 |
mm | — | — | — | — | — | 2 | 6 | 4 | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 21 | 21 | 21 | 21 | 20 | 19 | 19 | 20 | 20 | 20 | 20 | 20 | 19 | 19 | 19 | 18 | 19 | 19 | 19 | 18 | 18 | 18 | 19 |
Feels °C | 17 | 19 | 21 | 23 | 21 | 22 | 17 | 18 | 20 | 21 | 20 | 21 | 22 | 19 | 18 | 18 | 15 | 16 | 17 | 16 | 16 | 16 | 16 | 18 |
Swell 1 Height (m) Direction Period (s) | SSW 9 | S 8 | SSE 8 | SSE 8 | SSE 8 | S 7 | S 7 | S 5 | S 7 | S 7 | S 6 | S 7 | S 9 | S 9 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | SW 8 | SW 8 | SSW 9 | S 8 |
| kJ | 92 | 137 | 115 | 81 | 67 | 40 | 51 | 14 | 21 | 21 | 12 | 17 | 59 | 54 | 50 | 48 | 46 | 49 | 51 | 36 | 18 | 18 | 29 | 36 |
Swell 2 Height (m) Direction Period (s) | SE 7 | SSW 10 | SSW 10 | SSW 10 | SW 9 | SSW 8 | SSW 9 | SSE 7 | SSW 8 | SSW 8 | SSW 8 | SSW 9 | ESE 7 | E 8 | E 8 | E 8 | E 8 | ESE 3 | E 5 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | E 8 |
| kJ | 37 | 71 | 67 | 38 | 22 | 13 | 8 | 16 | 7 | 6 | 6 | 9 | 10 | 10 | 5 | 5 | 5 | 2 | 5 | 16 | 7 | 8 | 8 | 1 |
Swell 3 Height (m) Direction Period (s) | SSW 14 | SSE 8 | — | SSW 9 | E 8 | SW 9 | SW 9 | SSW 9 | ESE 8 | — | S 10 | SW 8 | E 8 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | E 8 | E 5 | S 12 | SSW 11 | E 8 | E 15 |
| kJ | 21 | 66 | — | 16 | 12 | 13 | 40 | 7 | 12 | — | 2 | 3 | 1 | 3 | 3 | 3 | 3 | 3 | 1 | 2 | 3 | 12 | 1 | 4 |
Wind waves Height (m) Direction Period (s) | N 3 | NNE 3 | — | — | SSW 3 | SSW 4 | — | N 2 | NNE 2 | — | — | — | — | — | — | — | NE 2 | NE 3 | — | — | NE 2 | NE 2 | NE 3 | NNE 3 |
| kJ | 5 | 2 | — | — | 1 | 16 | — | 1 | 1 | — | — | — | — | — | — | — | 1 | 2 | — | — | 1 | 2 | 2 | 1 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 17 | 0 | 0 | 6 | 72 | 0 | 2 | 55 | 38 | 51 | 51 | 38 | 0 | 0 | 0 | 7 | 0 | 487 | 470 | 0 | 38 | 51 | 38 | 16 |
Best forecast wave conditions in Kanagawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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