Surf Forecasts:
How big are the waves at Rock Island today (05 Oct):
- Morning surf: Morning surf (05 Oct, local time) - 4.5ft (1.3m), 15s period with SSE swell.
- Afternoon surf: Afternoon surf (05 Oct, local time) - 5ft (1.6m), 16s period with SSE swell.
- Evening surf: Evening surf (05 Oct, local time) - 6.5ft (2.0m), 17s period with SSE swell.
The current surf forecast for Rock Island at 5AM is: 1.1m 16s primary swell from a South-southeast direction and 0.1m 15s secondary swell from a East direction (forecast issued at 02:00am October 05). An open ocean swell of 0.5m 3s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (05 Oct) | 4.5ft (1.3m) | 15s |
| Afternoon (05 Oct) | 5ft (1.6m) | 16s |
| Evening (05 Oct) | 6.5ft (2.0m) | 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 Mon morning). Mainly fresh winds. | ||||||||||||||||||||||||
Monday 5 | Tuesday 6 | Wednesday 7 | ||||||||||||||||||||||
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) | SSE 16 | SSE 15 | SSE 16 | SSE 15 | SSE 16 | SSE 16 | SSE 17 | SSE 17 | SSE 16 | SE 17 | SE 17 | SE 17 | SE 18 | SE 18 | SE 18 | SE 18 | SE 17 | SE 17 | SE 16 | SE 15 | SE 14 | SE 14 | SE 13 | SE 12 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 306 | 422 | 778 | 837 | 1027 | 1257 | 1955 | 2323 | 2696 | 3498 | 3819 | 4589 | 4852 | 5122 | 5467 | 5369 | 4518 | 3515 | 2326 | 1349 | 676 | 313 | 138 | 153 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | off | off | off | off | off | off | off | off | off | off | cross-off | off | off | off | off | cross-off | glassy | glassy | on | cross-off |
High Tide | 1:47PM1.28m | 10:20PM1.27m | 2:37PM1.33m | 00:30AM1.25m | 3:09PM1.36m | |||||||||||||||||||
Low Tide | 5:17AM0.43m | 6:12PM1.18m | 6:41AM0.46m | 7:56PM1.08m | 7:54AM0.47m | 8:48PM0.94m | ||||||||||||||||||
 |  |  |  | | | |  | | |  | | | | | | | | | | | | | | |
 | — | 5:37 | — | — | — | — | — | — | — | 5:39 | — | — | — | — | — | — | — | 5:39 | — | — | — | — | — | — |
 | — | — | — | — | — | 5:21 | — | — | — | — | — | — | — | 5:20 | — | — | — | — | — | — | — | 5:17 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 19 | 19 | 19 | 20 | 21 | 21 | 21 | 21 | 21 | 21 | 23 | 26 | 27 | 24 | 23 | 22 | 22 | 21 | 21 | 21 | 22 | 22 | 22 |
Feels °C | 17 | 15 | 14 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 19 | 21 | 23 | 25 | 20 | 19 | 16 | 16 | 16 | 18 | 21 | 21 | 22 | 20 |
Swell 1 Height (m) Direction Period (s) | SSE 16 | SSE 15 | SSE 16 | SSE 15 | SSE 16 | SSE 16 | SSE 17 | SSE 17 | SSE 16 | SE 17 | SE 17 | SE 17 | SE 18 | SE 18 | SE 18 | SE 18 | SE 17 | SE 17 | SE 16 | SE 15 | SE 14 | SE 14 | SE 13 | SE 13 |
| kJ | 306 | 422 | 778 | 837 | 1027 | 1257 | 1955 | 2323 | 2696 | 3498 | 3819 | 4589 | 4852 | 5122 | 5467 | 5369 | 4518 | 3515 | 2326 | 1349 | 676 | 313 | 138 | 128 |
Swell 2 Height (m) Direction Period (s) | SSE 18 | SSE 18 | E 15 | E 15 | ESE 9 | SSE 20 | ESE 9 | E 9 | E 13 | E 9 | — | — | — | — | — | — | — | — | — | — | — | — | ESE 13 | SE 12 |
| kJ | 134 | 182 | 4 | 4 | 212 | 790 | 149 | 104 | 13 | 41 | — | — | — | — | — | — | — | — | — | — | — | — | 59 | 153 |
Swell 3 Height (m) Direction Period (s) | E 14 | E 14 | E 14 | E 14 | ESE 14 | ESE 9 | E 13 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 4 | 4 | 16 | 16 | 20 | 161 | 30 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NE 3 | NNE 3 | N 3 | N 3 | N 3 | N 3 | NNE 3 | ENE 9 | — | ENE 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 2 | 3 | 4 | 5 | 5 | 5 | 3 | 188 | — | 62 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 487 | 4 | 0 | 38 | 74 | 145 | 145 | 136 | 7 | 0 | 0 | 0 | 0 | 0 | 7 | 0 | 510 | 136 | 29 | 7 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Kanagawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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