Surf Forecasts:
How big are the waves at Rock Island today (07 Oct):
- Morning surf: Morning surf (07 Oct, local time) - 5ft (1.6m), 15s period with SE swell.
- Afternoon surf: Afternoon surf (07 Oct, local time) - 2.5ft (0.7m), 13s period with SE swell.
- Evening surf: Evening surf (07 Oct, local time) - 1.5ft (0.4m), 12s period with ESE swell.
The current surf forecast for Rock Island at 9AM is: 1.6m 15s primary swell from a Southeast direction (forecast issued at 02:00am October 07). The wind direction is predicted to be offshore and the swell rating is 4.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (07 Oct) | 5ft (1.6m) | 15s |
| Afternoon (07 Oct) | 2.5ft (0.7m) | 13s |
| Evening (07 Oct) | 1.5ft (0.4m) | 12s |
Table - waves today at Rock Island. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 23°C on Fri afternoon, min 19°C on Wed night). Wind will be generally light. | ||||||||||||||||||||||||
Wednesday 7 | Thursday 8 | Friday 9 | ||||||||||||||||||||||
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 17 | SE 16 | SE 16 | SE 15 | SE 14 | SE 13 | SE 13 | ESE 12 | SE 12 | SE 12 | SE 11 | SE 11 | SE 10 | SE 10 | SE 10 | SE 10 | ESE 17 | ESE 16 | ESE 16 | SE 9 | ESE 17 | ESE 16 | ESE 16 | SE 8 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 3312 | 2645 | 1929 | 1048 | 557 | 183 | 134 | 60 | 38 | 47 | 31 | 29 | 37 | 35 | 15 | 14 | 27 | 26 | 26 | 29 | 28 | 25 | 25 | 22 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | off | cross-off | cross | cross-off | cross-off | off | cross-off | off | cross-off | cross | cross | cross | cross-off | cross-off | off | off | cross-off | cross-off | cross | cross-off |
High Tide | 00:30AM1.25m | 3:09PM1.36m | 2:06AM1.30m | 3:36PM1.40m | 3:12AM1.39m | 4:00PM1.43m | ||||||||||||||||||
Low Tide | 7:54AM0.47m | 8:48PM0.94m | 8:51AM0.48m | 9:26PM0.78m | 9:38AM0.50m | |||||||||||||||||||
 | |  |  | | |  | | |  |  | | | | | | | | | | | | | | |
 | — | 5:39 | — | — | — | — | — | — | — | 5:41 | — | — | — | — | — | — | — | 5:41 | — | — | — | — | — | — |
 | — | — | — | — | — | 5:17 | — | — | — | — | — | — | — | 5:16 | — | — | — | — | — | — | — | 5:15 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 22 | 21 | 21 | 22 | 22 | 22 | 21 | 21 | 20 | 19 | 19 | 21 | 22 | 22 | 21 | 20 | 20 | 19 | 19 | 21 | 23 | 22 | 21 |
Feels °C | 18 | 17 | 17 | 17 | 20 | 20 | 19 | 18 | 18 | 16 | 16 | 16 | 19 | 21 | 20 | 20 | 20 | 20 | 18 | 18 | 20 | 22 | 20 | 20 |
Swell 1 Height (m) Direction Period (s) | SE 17 | SE 16 | SE 16 | SE 15 | SE 14 | SE 13 | SE 13 | ESE 12 | SE 12 | SE 12 | SE 11 | SE 11 | SE 10 | SE 10 | SE 10 | SE 10 | SE 9 | SE 9 | SE 9 | SE 9 | SE 8 | SE 8 | SE 8 | SE 8 |
| kJ | 3312 | 2645 | 1929 | 1048 | 557 | 183 | 134 | 60 | 38 | 47 | 31 | 29 | 37 | 35 | 15 | 14 | 14 | 13 | 13 | 20 | 18 | 11 | 11 | 17 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | SE 13 | SE 13 | SE 12 | SE 11 | SE 4 | ESE 11 | ESE 11 | E 18 | E 18 | SE 17 | SE 5 | SE 5 | SSE 5 | SSE 5 | ESE 17 | ESE 17 | ESE 16 | ESE 16 | ESE 15 |
| kJ | — | — | — | — | — | 83 | 28 | 36 | 20 | 1 | 12 | 12 | 6 | 6 | 11 | 4 | 4 | 2 | 3 | 29 | 28 | 25 | 25 | 22 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | E 20 | E 20 | E 19 | E 18 | E 18 | ESE 18 | — | E 21 | SE 17 | ESE 17 | ESE 16 | ESE 16 | SE 12 | SE 11 | SE 11 | SE 11 | SE 11 |
| kJ | — | — | — | — | — | — | — | 8 | 7 | 7 | 6 | 6 | 31 | — | 8 | 11 | 27 | 26 | 26 | 5 | 5 | 5 | 5 | 5 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | ESE 2 | ESE 3 | ESE 3 | NE 2 | NNE 3 | NNE 3 | — | ESE 7 | SE 5 | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | 1 | 1 | 2 | 1 | 1 | 1 | — | 25 | 5 | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 8 | 4 | 0 | 0 | 0 | 0 | 54 | 8 | 38 | 0 | 38 | 38 | 0 | 18 | 38 | 38 | 38 | 38 | 38 | 0 | 0 | 16 | 38 | 38 |
Best forecast wave conditions in Kanagawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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