Surf Forecasts:
How big are the waves at Rock Island today (28 Oct):
- Morning surf: Morning surf (28 Oct, local time) - 1ft (0.3m), 8s period with SSW swell.
- Afternoon surf: Afternoon surf (28 Oct, local time) - 1ft (0.3m), 7s period with S swell.
- Evening surf: Evening surf (28 Oct, local time) - 0.5ft (0.2m), 7s period with S swell.
The current surf forecast for Rock Island at 3PM is: 0.3m 7s primary swell from a South direction and 0.1m 11s secondary swell from a Southeast direction (forecast issued at 08:00am October 28). 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 (28 Oct) | 1ft (0.3m) | 8s |
| Afternoon (28 Oct) | 1ft (0.3m) | 7s |
| Evening (28 Oct) | 0.5ft (0.2m) | 7s |
Table - waves today at Rock Island. (Swell directed towards the surf break)
Short Range ForecastSome drizzle, heaviest during Thu night. Very mild (max 19°C on Fri afternoon, min 13°C on Wed night). Wind will be generally light. | ||||||||||||||||||||||
Wednesday 28 | Thursday 29 | Friday 30 | ||||||||||||||||||||
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) | SSW 8 | SSW 8 | SSW 8 | S 7 | S 7 | S 7 | E 16 | SE 15 | SE 15 | SE 15 | ESE 14 | SE 13 | SE 13 | SE 13 | SE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SE 8 |
Wave Graph  | ||||||||||||||||||||||
 kJ | 21 | 13 | 12 | 9 | 9 | 5 | 5 | 9 | 8 | 8 | 21 | 28 | 28 | 28 | 50 | 114 | 140 | 169 | 165 | 161 | 142 | 91 |
Wind (km/h) | ||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | off | off | off | off | off | cross-off | off | off | off | cross-off | cross-off | glassy | on | cross-on | off | off | cross-off | on | on | cross |
High Tide | 6:45AM1.52m | 5:26PM1.54m | 7:31AM1.48m | 5:54PM1.54m | 8:21AM1.43m | 6:25PM1.51m | ||||||||||||||||
Low Tide | 12:03PM0.91m | 00:28AM0.08m | 12:36PM0.98m | 1:08AM0.09m | 1:11PM1.05m | |||||||||||||||||
 |  | | |  | |  | | | | | |  | | | |  | | | | | | |
 | 5:58 | — | — | — | — | — | — | 5:58 | — | — | — | — | — | — | — | — | 6:00 | — | — | — | — | — |
 | — | — | — | 4:52 | — | — | — | — | — | — | — | 4:51 | — | — | — | — | — | — | — | 4:50 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — |
Temp °C | 17 | 17 | 18 | 18 | 16 | 15 | 14 | 13 | 13 | 13 | 14 | 15 | 16 | 17 | 17 | 17 | 16 | 16 | 18 | 18 | 19 | 19 |
Feels °C | 11 | 11 | 14 | 12 | 9 | 9 | 9 | 8 | 9 | 9 | 10 | 13 | 15 | 17 | 17 | 17 | 15 | 13 | 16 | 17 | 18 | 18 |
Swell 1 Height (m) Direction Period (s) | SSW 8 | SSW 8 | SSW 8 | S 7 | S 7 | S 7 | S 7 | S 7 | SSE 7 | SE 5 | SE 5 | SE 5 | SE 5 | SE 7 | SE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SE 8 |
| kJ | 21 | 13 | 12 | 9 | 9 | 4 | 4 | 4 | 5 | 1 | 4 | 6 | 4 | 27 | 50 | 114 | 140 | 169 | 165 | 161 | 142 | 91 |
Swell 2 Height (m) Direction Period (s) | SSE 7 | SSE 7 | SSE 7 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 15 | SSE 7 | ESE 14 | SE 13 | SE 13 | SE 13 | SE 13 | SE 13 | SE 13 | SE 12 | ESE 12 | SE 12 | SE 12 | S 7 |
| kJ | 15 | 5 | 5 | 4 | 5 | 5 | 5 | 5 | 8 | 4 | 21 | 28 | 28 | 28 | 26 | 25 | 25 | 24 | 15 | 24 | 6 | 23 |
Swell 3 Height (m) Direction Period (s) | SE 11 | SE 11 | SE 11 | S 12 | — | — | E 16 | SE 15 | SE 11 | SE 15 | S 7 | E 10 | SSE 7 | — | — | — | — | SE 16 | SE 16 | SE 15 | SE 15 | ESE 12 |
| kJ | 5 | 4 | 4 | 3 | — | — | 5 | 9 | 5 | 8 | 1 | 2 | 5 | — | — | — | — | 10 | 10 | 8 | 9 | 15 |
Wind waves Height (m) Direction Period (s) | NNE 3 | N 3 | — | NE 3 | NE 2 | NNE 3 | NNE 3 | NE 3 | NNE 3 | — | NNE 2 | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 2 | 1 | — | 1 | 1 | 3 | 3 | 2 | 1 | — | 1 | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||
Distance (km) | 136 | 64 | 51 | 51 | 51 | 51 | 61 | 145 | 145 | 38 | 77 | 16 | 38 | 0 | 10 | 8 | 0 | 0 | 0 | 18 | 14 | 7 |
Best forecast wave conditions in Kanagawa | ||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||
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