Surf Forecasts:
How big are the waves at Rock Island today (02 Oct):
- Morning surf: Morning surf (02 Oct, local time) - 1.5ft (0.4m), 7s period with SSE swell.
- Afternoon surf: Afternoon surf (02 Oct, local time) - 1ft (0.3m), 6s period with SSE swell.
- Evening surf: Evening surf (02 Oct, local time) - 0.5ft (0.2m), 6s period with SSE swell.
The current surf forecast for Rock Island at 4PM is: 0.3m 6s primary swell from a South-southeast direction and 0.1m 9s secondary swell from a Southeast direction (forecast issued at 08:00am October 02). 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 (02 Oct) | 1.5ft (0.4m) | 7s |
| Afternoon (02 Oct) | 1ft (0.3m) | 6s |
| Evening (02 Oct) | 0.5ft (0.2m) | 6s |
Table - waves today at Rock Island. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 6mm), mostly falling on Fri morning. Warm (max 21°C on Fri morning, min 17°C on Fri afternoon). Mainly fresh winds. | ||||||||||||||||||||||
Friday 2 | Saturday 3 | Sunday 4 | ||||||||||||||||||||
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 | |
Swell Height Map |  |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | SSE 7 | SSE 7 | SSE 7 | SSE 6 | SSE 6 | SSE 6 | SE 8 | ESE 8 | SE 8 | SE 8 | SE 8 | ESE 8 | SE 8 | SE 8 | SE 8 | SE 10 | SE 10 | SE 10 | SE 10 | SE 11 | SE 12 | SE 11 |
Wave Graph  | ||||||||||||||||||||||
 kJ | 27 | 18 | 17 | 8 | 8 | 4 | 9 | 7 | 3 | 11 | 10 | 6 | 10 | 11 | 18 | 34 | 39 | 50 | 53 | 72 | 84 | 78 |
Wind (km/h) | ||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | cross-off | cross-off | off | off | off | off | cross-off | cross-off | cross-off | cross-off | off | off | off | off | off | cross-off | cross-off | off |
High Tide | 9:17AM1.35m | 7:29PM1.49m | 10:31AM1.28m | 8:03PM1.43m | 12:14PM1.25m | 8:49PM1.35m | ||||||||||||||||
Low Tide | 2:01PM1.04m | 3:00AM0.30m | 2:40PM1.12m | 4:01AM0.37m | 3:47PM1.19m | |||||||||||||||||
 |  |  | |  | |  |  |  | | | |  | | | | | | | | | | |
 | 5:35 | — | — | — | — | — | — | 5:37 | — | — | — | — | — | — | — | 5:37 | — | — | — | — | — | — |
 | — | — | — | 5:24 | — | — | — | — | — | — | — | 5:23 | — | — | — | — | — | — | — | 5:22 | — | — |
mm | — | — | 2 | 2 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 21 | 19 | 17 | 18 | 17 | 18 | 18 | 18 | 18 | 20 | 21 | 20 | 20 | 20 | 20 | 19 | 19 | 21 | 21 | 21 | 19 |
Feels °C | 18 | 19 | 15 | 13 | 15 | 12 | 15 | 15 | 14 | 14 | 17 | 19 | 16 | 17 | 17 | 16 | 16 | 15 | 18 | 17 | 18 | 15 |
Swell 1 Height (m) Direction Period (s) | SSE 7 | SSE 7 | SSE 7 | SSE 6 | SSE 6 | SSE 6 | SE 8 | ESE 8 | SE 8 | SE 8 | SE 8 | ESE 8 | SE 8 | SE 8 | SE 8 | SE 10 | SE 10 | SE 10 | SE 10 | SE 11 | SE 12 | SE 11 |
| kJ | 27 | 18 | 17 | 8 | 8 | 4 | 9 | 7 | 3 | 11 | 10 | 6 | 10 | 11 | 18 | 34 | 39 | 50 | 53 | 72 | 84 | 71 |
Swell 2 Height (m) Direction Period (s) | — | SSW 6 | SE 16 | SE 9 | SE 9 | SE 8 | E 16 | SE 6 | SE 6 | — | — | SE 9 | E 15 | SE 14 | SE 12 | SE 14 | SE 14 | SE 14 | SE 15 | SSE 16 | SSE 15 | SSE 14 |
| kJ | — | 4 | 10 | 3 | 3 | 2 | 5 | 1 | 1 | — | — | 3 | 4 | 8 | 6 | 8 | 8 | 8 | 9 | 24 | 44 | 78 |
Swell 3 Height (m) Direction Period (s) | E 11 | E 11 | E 11 | — | — | SE 9 | — | — | — | — | E 15 | E 15 | SE 12 | S 12 | SE 11 | ESE 14 | ESE 14 | S 15 | S 16 | E 16 | E 16 | SSE 18 |
| kJ | 2 | 2 | 2 | — | — | 3 | — | — | — | — | 4 | 4 | 5 | 3 | 4 | 20 | 20 | 4 | 5 | 5 | 5 | 64 |
Wind waves Height (m) Direction Period (s) | NNE 3 | NNE 3 | NNE 3 | NE 3 | NE 3 | NE 3 | NE 3 | NE 3 | NNE 3 | NNE 3 | NE 3 | ENE 3 | E 2 | ESE 4 | — | NE 2 | NE 3 | NE 3 | ENE 2 | ENE 2 | E 3 | E 3 |
| kJ | 2 | 7 | 8 | 7 | 4 | 3 | 3 | 5 | 5 | 4 | 2 | 1 | 1 | 3 | — | 1 | 1 | 1 | 1 | 1 | 2 | 3 |
Nearest Offshore or Glassy | ||||||||||||||||||||||
Distance (km) | 51 | 249 | 249 | 572 | 572 | 572 | 145 | 145 | 145 | 145 | 145 | 51 | 136 | 51 | 38 | 0 | 0 | 0 | 0 | 12 | 38 | 0 |
Best forecast wave conditions in Kanagawa | ||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||
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