Surf Forecasts:
How big are the waves at Rock Island today (06 Oct):
- Morning surf: Morning surf (06 Oct, local time) - 10ft (3.0m), 17s period with SE swell.
- Afternoon surf: Afternoon surf (06 Oct, local time) - 10ft (3.0m), 17s period with SE swell.
- Evening surf: Evening surf (06 Oct, local time) - 8ft (2.5m), 17s period with SE swell.
The current surf forecast for Rock Island at 5AM is: 2.5m 17s primary swell from a Southeast direction (forecast issued at 02:00am October 06). An open ocean swell of 0.6m 9s is not directed at the surf break, a second open ocean swell of 0.8m 8s is not directed at the surf break. The wind direction is predicted to be offshore and the swell rating is 5.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (06 Oct) | 10ft (3.0m) | 17s |
| Afternoon (06 Oct) | 10ft (3.0m) | 17s |
| Evening (06 Oct) | 8ft (2.5m) | 17s |
Table - waves today at Rock Island. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 27°C on Tue afternoon, min 19°C on Wed night). Winds decreasing (fresh winds from the NE on Tue afternoon, calm by Thu afternoon). | ||||||||||||||||||||||||
Tuesday 6 | Wednesday 7 | Thursday 8 | ||||||||||||||||||||||
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 | 12 PM | 3 PM | 6 PM | 9 PM | |
Swell Height Map |  |  |  |  |  |  |  |  |  | |||||||||||||||
Wave Height (m) Direction Period (s) | SE 16 | SE 17 | SE 17 | SE 17 | SE 17 | SE 17 | SE 17 | SE 17 | SE 16 | SE 16 | SE 16 | SE 15 | SE 14 | ESE 14 | SE 13 | ESE 12 | ESE 12 | SE 12 | SE 11 | SE 11 | SE 10 | SE 10 | E 21 | SE 10 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 2829 | 3498 | 3819 | 4589 | 4797 | 4742 | 4652 | 3701 | 3193 | 2580 | 1929 | 1048 | 492 | 134 | 83 | 60 | 58 | 65 | 33 | 29 | 37 | 26 | 34 | 15 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | off | cross-off | cross-off | off | off | off | off | off | off | cross-off | cross | cross-off | cross-off | off | off | cross-off | cross-off | glassy | cross-on | cross |
High Tide | 10:20PM1.27m | 2:37PM1.33m | 00:30AM1.25m | 3:09PM1.36m | 2:06AM1.30m | 3:36PM1.40m | ||||||||||||||||||
Low Tide | 6:41AM0.46m | 7:56PM1.08m | 7:54AM0.47m | 8:48PM0.94m | 8:51AM0.48m | |||||||||||||||||||
 | |  | | | | |  |  | |  |  | | | | | | | | | | | | | |
 | — | 5:39 | — | — | — | — | — | — | — | 5:39 | — | — | — | — | — | — | — | 5:41 | — | — | — | — | — | — |
 | — | — | — | — | — | 5:20 | — | — | — | — | — | — | — | 5:17 | — | — | — | — | — | — | — | 5:16 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 21 | 21 | 23 | 26 | 27 | 24 | 24 | 22 | 22 | 21 | 21 | 22 | 23 | 21 | 21 | 21 | 20 | 19 | 19 | 21 | 22 | 21 | 20 |
Feels °C | 19 | 19 | 19 | 19 | 23 | 24 | 20 | 21 | 17 | 17 | 17 | 16 | 20 | 21 | 18 | 19 | 18 | 17 | 15 | 16 | 19 | 21 | 19 | 19 |
Swell 1 Height (m) Direction Period (s) | SE 16 | SE 17 | SE 17 | SE 17 | SE 17 | SE 17 | SE 17 | SE 17 | SE 16 | SE 16 | SE 16 | SE 15 | SE 14 | ESE 14 | SE 13 | ESE 12 | ESE 12 | SE 12 | SE 11 | SE 11 | SE 10 | SE 10 | SE 10 | SE 10 |
| kJ | 2829 | 3498 | 3819 | 4589 | 4797 | 4742 | 4652 | 3701 | 3193 | 2580 | 1929 | 1048 | 492 | 127 | 83 | 60 | 58 | 65 | 33 | 29 | 37 | 26 | 15 | 15 |
Swell 2 Height (m) Direction Period (s) | E 13 | ENE 9 | — | — | — | — | — | — | — | — | — | — | — | SE 13 | SE 12 | SE 12 | SE 11 | E 19 | SE 11 | ESE 11 | E 18 | SE 5 | SE 17 | SE 17 |
| kJ | 13 | 65 | — | — | — | — | — | — | — | — | — | — | — | 134 | 73 | 36 | 20 | 7 | 19 | 12 | 6 | 1 | 11 | 11 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | E 20 | E 20 | E 19 | E 18 | E 18 | ESE 18 | E 18 | E 21 | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 8 | 7 | 29 | 6 | 6 | 31 | 6 | 34 | — |
Wind waves Height (m) Direction Period (s) | — | NE 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | NNE 2 | NNE 3 | NNE 3 | NNE 2 | — | SE 5 | SE 5 |
| kJ | — | 93 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 1 | 1 | — | 4 | 4 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 552 | 565 | 54 | 54 | 510 | 8 | 7 | 0 | 0 | 0 | 0 | 54 | 0 | 10 | 0 | 0 | 38 | 0 | 16 | 38 | 38 |
Best forecast wave conditions in Kanagawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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