Surf Forecasts:
How big are the waves at Rock Island today (10 Jun):
- Morning surf: Morning surf (10 Jun, local time) - 2ft (0.6m), 8s period with SSW swell.
- Afternoon surf: Afternoon surf (10 Jun, local time) - 1.5ft (0.5m), 8s period with S swell.
- Evening surf: Evening surf (10 Jun, local time) - 1.5ft (0.5m), 9s period with S swell.
The current surf forecast for Rock Island at 5PM is: 0.2m 10s primary swell from a South direction and 0.2m 8s secondary swell from a South-southwest direction (forecast issued at 08:00am June 10). An open ocean swell of 0.3m 3s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (10 Jun) | 2ft (0.6m) | 8s |
| Afternoon (10 Jun) | 1.5ft (0.5m) | 8s |
| Evening (10 Jun) | 1.5ft (0.5m) | 9s |
Table - waves today at Rock Island. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 2mm), mostly falling on Wed morning. Warm (max 22°C on Thu afternoon, min 18°C on Wed morning). Winds decreasing (fresh winds from the NNE on Wed morning, calm by Fri night). | ||||||||||||||||||||||||
Wednesday 10 | Thursday 11 | Friday 12 | Sat 13 | |||||||||||||||||||||
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 | 6 PM | 9 PM | 12 AM | 3 AM | |
Swell Height Map |  |  |  |  |  |  |  |  |  | |||||||||||||||
Wave Height (m) Direction Period (s) | SSW 8 | SSW 8 | S 8 | S 8 | S 10 | S 9 | S 8 | S 8 | S 9 | S 9 | S 9 | SSW 9 | S 7 | SSW 9 | SSW 9 | SSW 9 | SSW 9 | SW 9 | SW 8 | S 8 | SSE 7 | SSW 8 | SSE 7 | SSE 7 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 40 | 53 | 33 | 29 | 8 | 39 | 51 | 69 | 94 | 101 | 106 | 65 | 54 | 45 | 30 | 30 | 29 | 27 | 18 | 31 | 9 | 13 | 9 | 9 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | off | off | off | off | cross-off | glassy | cross-off | cross | on | on | on | on | on | cross-off | cross-off | off | cross-off | cross-on | on | on | glassy | glassy |
High Tide | 1:16PM1.09m | 00:56AM1.30m | 2:42PM1.15m | 1:35AM1.33m | 3:50PM1.23m | 2:13AM1.37m | ||||||||||||||||||
Low Tide | 7:04AM0.56m | 6:41PM0.73m | 7:59AM0.41m | 7:45PM0.83m | 8:48AM0.26m | 8:44PM0.90m | ||||||||||||||||||
 | |  |  | |  | | | | |  | | |  |  | | | | | | | | | | |
 | 4:26 | — | — | — | — | — | — | 4:26 | — | — | — | — | — | — | — | 4:26 | — | — | — | — | — | — | — | 4:26 |
 | — | — | — | — | 6:54 | — | — | — | — | — | — | — | 6:55 | — | — | — | — | — | — | — | 6:55 | — | — | 6:57 |
mm | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 18 | 18 | 18 | 19 | 19 | 19 | 19 | 19 | 20 | 21 | 22 | 22 | 21 | 21 | 20 | 19 | 21 | 22 | 22 | 22 | 21 | 21 | 20 |
Feels °C | 19 | 14 | 14 | 15 | 17 | 17 | 19 | 19 | 19 | 19 | 19 | 19 | 20 | 19 | 21 | 19 | 17 | 20 | 22 | 21 | 22 | 21 | 23 | 22 |
Swell 1 Height (m) Direction Period (s) | SSW 8 | SSW 8 | S 8 | S 8 | SSW 8 | S 9 | S 8 | S 8 | S 9 | S 9 | S 9 | SSW 9 | SSW 9 | SSW 9 | S 7 | S 7 | S 7 | S 7 | SSE 7 | S 8 | SSE 7 | SSW 8 | SSE 7 | SSE 7 |
| kJ | 40 | 53 | 33 | 29 | 6 | 39 | 51 | 69 | 94 | 101 | 106 | 65 | 46 | 45 | 27 | 27 | 26 | 27 | 18 | 31 | 9 | 13 | 9 | 9 |
Swell 2 Height (m) Direction Period (s) | SSW 5 | — | E 8 | — | S 10 | SSW 11 | SSW 11 | SSW 12 | SSW 12 | SSE 7 | SSE 7 | SSE 7 | E 7 | SSE 7 | SSW 9 | SSW 9 | SSW 9 | SW 9 | SW 8 | SSE 7 | SSW 8 | SSE 7 | SSW 8 | S 4 |
| kJ | 15 | — | 5 | — | 8 | 23 | 24 | 14 | 29 | 48 | 48 | 48 | 4 | 20 | 30 | 30 | 29 | 19 | 18 | 26 | 7 | 9 | 6 | 2 |
Swell 3 Height (m) Direction Period (s) | SE 9 | SE 9 | SE 9 | E 8 | SSE 6 | — | — | SW 12 | SSW 12 | E 7 | E 7 | E 7 | E 15 | E 7 | S 12 | S 12 | E 7 | E 7 | E 7 | E 7 | S 8 | S 11 | S 11 | SSW 8 |
| kJ | 3 | 3 | 3 | 1 | 4 | — | — | 6 | 29 | 4 | 4 | 4 | 4 | 4 | 3 | 3 | 1 | 1 | 1 | 1 | 5 | 2 | 2 | 6 |
Wind waves Height (m) Direction Period (s) | — | NNE 2 | NNE 3 | NE 3 | NE 3 | NNE 3 | — | — | — | — | — | S 7 | S 7 | S 3 | S 3 | — | — | — | — | — | S 3 | S 3 | S 3 | — |
| kJ | — | 1 | 7 | 5 | 2 | 1 | — | — | — | — | — | 40 | 54 | 3 | 2 | — | — | — | — | — | 1 | 1 | 2 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 54 | 51 | 228 | 38 | 0 | 0 | 0 | 0 | 12 | 18 | 64 | 77 | 14 | 76 | 0 | 0 | 16 | 38 | 77 | 76 | 76 | 54 | 77 |
Best forecast wave conditions in Kanagawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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