Surf Forecasts:
How big are the waves at Rock Island today (12 Oct):
- Afternoon surf: Afternoon surf (12 Oct, local time) - 3.5ft (1.1m), 15s period with SE swell.
- Evening surf: Evening surf (12 Oct, local time) - 3ft (0.9m), 14s period with SE swell.
The current surf forecast for Rock Island at 6PM is: 1.1m 15s primary swell from a Southeast direction (forecast issued at 02:00pm October 12). An open ocean swell of 0.5m 3s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 Oct) | - | - |
| Afternoon (12 Oct) | 3.5ft (1.1m) | 15s |
| Evening (12 Oct) | 3ft (0.9m) | 14s |
Table - waves today at Rock Island. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 25°C on Wed morning, min 18°C on Wed night). Winds increasing (light winds from the E on Tue afternoon, strong winds from the N by Wed night). | ||||||||||||||||||||
Mon 12 | Tuesday 13 | Wednesday 14 | ||||||||||||||||||
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 15 | SE 15 | SE 15 | SE 14 | SE 14 | SE 14 | SE 13 | SE 13 | SE 13 | SE 12 | SE 12 | SE 11 | SE 11 | SE 10 | SE 10 | SE 10 | SW 5 | SSW 5 | SSW 6 | SSW 6 |
Wave Graph  | ||||||||||||||||||||
 kJ | 456 | 492 | 472 | 346 | 322 | 322 | 299 | 242 | 235 | 184 | 139 | 79 | 56 | 25 | 25 | 25 | 54 | 102 | 69 | 34 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross-off | off | off | off | off | off | off | cross-off | on | on | on | on | on | on | cross-on | on | cross-on | off |
High Tide | 5:11PM1.51m | 6:22AM1.55m | 5:35PM1.53m | 7:07AM1.52m | 6:00PM1.54m | |||||||||||||||
Low Tide | 11:29AM0.68m | 11:43PM0.24m | 12:00PM0.77m | 00:19AM0.18m | 12:31PM0.87m | |||||||||||||||
 |  |  | | | | | | | | | | | | | | | | |  | |
 | — | — | — | — | — | 5:45 | — | — | — | — | — | — | — | 5:46 | — | — | — | — | — | — |
 | — | 5:10 | — | — | — | — | — | — | — | 5:09 | — | — | — | — | — | — | — | 5:08 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 24 | 21 | 20 | 19 | 19 | 19 | 20 | 22 | 23 | 23 | 22 | 22 | 21 | 21 | 23 | 25 | 25 | 25 | 23 |
Feels °C | 19 | 19 | 16 | 17 | 16 | 16 | 16 | 17 | 21 | 24 | 24 | 22 | 21 | 19 | 18 | 20 | 21 | 22 | 26 | 16 |
Swell 1 Height (m) Direction Period (s) | SE 15 | SE 15 | SE 15 | SE 14 | SE 14 | SE 14 | SE 13 | SE 13 | SE 13 | SE 12 | SE 12 | SE 11 | SE 11 | SE 10 | SE 10 | SE 10 | SE 9 | ESE 9 | ESE 9 | SSW 6 |
| kJ | 456 | 492 | 472 | 346 | 322 | 322 | 299 | 242 | 235 | 184 | 139 | 79 | 56 | 25 | 25 | 25 | 13 | 8 | 8 | 34 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | ENE 8 | E 8 | E 8 | E 8 | E 8 | ESE 11 | — | SE 9 | E 10 | E 10 | SE 9 | ESE 9 |
| kJ | — | — | — | — | — | — | — | — | 21 | 21 | 20 | 20 | 11 | 12 | — | 3 | 2 | 2 | 28 | 7 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SE 9 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 20 |
Wind waves Height (m) Direction Period (s) | NE 3 | NE 3 | ENE 3 | NE 3 | NE 3 | NNE 3 | NNE 3 | NNE 3 | — | — | — | — | — | SSW 2 | SW 3 | SW 4 | SW 5 | SSW 5 | SSW 6 | N 2 |
| kJ | 5 | 3 | 6 | 5 | 4 | 3 | 3 | 2 | — | — | — | — | — | 1 | 4 | 14 | 54 | 102 | 69 | 1 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 145 | 38 | 136 | 136 | 2 | 0 | 0 | 0 | 0 | 0 | 14 | 14 | 14 | 38 | 38 | 228 | 488 | 505 | 10 | 54 |
Best forecast wave conditions in Kanagawa | ||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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