Surf Forecasts:
How big are the waves at Rock Island today (13 Nov):
- Afternoon surf: Afternoon surf (13 Nov, local time) - 1ft (0.3m), 4s period with SSW swell.
- Evening surf: Evening surf (13 Nov, local time) - 1.5ft (0.4m), 5s period with SSW swell.
The current surf forecast for Rock Island at 7PM is: 0.7m 5s primary swell from a South-southwest direction and 0.4m 5s secondary swell from a South-southwest direction, 0.1m 8s secondary swell from a Southeast direction (forecast issued at 02:00pm November 13). The wind direction is predicted to be glassy.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Nov) | - | - |
| Afternoon (13 Nov) | 1ft (0.3m) | 4s |
| Evening (13 Nov) | 1.5ft (0.4m) | 5s |
Table - waves today at Rock Island. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 14mm), heaviest on Sun afternoon. Very mild (max 18°C on Fri night, min 14°C on Sun morning). Winds increasing (calm on Sat afternoon, fresh winds from the NNE by Sun afternoon). | |||||||||||||||||||||||
Fri 13 | Saturday 14 | Sunday 15 | Mon 16 | ||||||||||||||||||||
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 | 12 AM | 3 AM | 6 AM | |
Swell Height Map |  |  |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | SW 4 | SSW 4 | SSW 5 | SSW 5 | S 5 | S 5 | S 6 | S 5 | S 6 | S 6 | SSW 6 | SSE 5 | S 7 | S 6 | S 6 | S 6 | S 6 | S 6 | S 6 | S 6 | S 6 | S 8 | S 8 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 11 | 4 | 19 | 7 | 13 | 15 | 15 | 9 | 9 | 9 | 6 | 5 | 15 | 20 | 19 | 18 | 18 | 18 | 17 | 15 | 24 | 93 | 92 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | glassy | cross-on | glassy | off | off | off | glassy | glassy | glassy | glassy | glassy | glassy | cross-on | cross | cross-off | off | off | off | off | off | off |
High Tide | 5:56PM1.51m | 8:46AM1.41m | 6:32PM1.47m | 9:38AM1.36m | 7:15PM1.40m | ||||||||||||||||||
Low Tide | 12:47PM1.05m | 1:21AM0.06m | 1:28PM1.08m | 2:05AM0.13m | 2:20PM1.10m | 2:54AM0.23m | |||||||||||||||||
 | |  | |  |  | |  | | | | | | | |  | | |  |  | | | | |
 | — | — | — | — | — | — | 6:13 | — | — | — | — | — | — | — | 6:15 | — | — | — | — | — | — | — | 6:16 |
 | — | 4:37 | — | — | — | — | — | — | — | 4:36 | — | — | — | — | — | — | — | 4:36 | — | — | — | — | 4:35 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 3 | 2 | 7 | 1 | — | — | — |
Temp °C | 15 | 17 | 17 | 18 | 17 | 16 | 16 | 16 | 18 | 18 | 18 | 18 | 18 | 18 | 17 | 15 | 14 | 14 | 14 | 15 | 15 | 15 | 16 |
Feels °C | 14 | 16 | 16 | 17 | 16 | 12 | 11 | 12 | 16 | 16 | 17 | 16 | 16 | 16 | 15 | 14 | 11 | 9 | 9 | 11 | 12 | 13 | 13 |
Swell 1 Height (m) Direction Period (s) | SSW 4 | SE 8 | SSW 5 | SSW 5 | S 5 | S 5 | S 6 | S 5 | S 6 | S 6 | SSE 5 | SSE 5 | S 7 | S 6 | S 6 | S 6 | S 6 | S 6 | S 6 | S 6 | S 6 | S 8 | S 8 |
| kJ | 2 | 3 | 7 | 7 | 13 | 15 | 15 | 9 | 9 | 9 | 5 | 5 | 15 | 20 | 19 | 18 | 18 | 18 | 17 | 15 | 24 | 93 | 92 |
Swell 2 Height (m) Direction Period (s) | SE 8 | E 10 | SE 8 | SE 9 | E 9 | E 12 | SE 12 | SE 11 | SE 11 | SE 7 | SSW 6 | SSW 5 | SSE 5 | E 9 | E 9 | SE 11 | SE 11 | SE 11 | SE 11 | SE 10 | SE 10 | ESE 10 | ESE 10 |
| kJ | 3 | 2 | 3 | 3 | 1 | 3 | 5 | 4 | 4 | 2 | 6 | 3 | 3 | 2 | 2 | 5 | 4 | 4 | 4 | 4 | 4 | 38 | 38 |
Swell 3 Height (m) Direction Period (s) | E 11 | — | E 10 | — | — | E 8 | ESE 10 | ESE 8 | S 6 | SE 11 | SE 7 | SSE 7 | E 9 | E 11 | E 11 | — | SW 3 | — | E 9 | — | — | — | — |
| kJ | 2 | — | 2 | — | — | 1 | 11 | 6 | 1 | 4 | 2 | 4 | 2 | 2 | 2 | — | 1 | — | 2 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SW 4 | SSW 4 | SSW 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 3 | N 2 | NNE 3 | NNE 3 | N 3 | — | NNE 3 |
| kJ | 11 | 4 | 19 | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 1 | 2 | 3 | 1 | — | 1 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 76 | 76 | 55 | 18 | 16 | 51 | 54 | 51 | 51 | 51 | 54 | 51 | 16 | 16 | 18 | 16 | 16 | 54 | 74 | 61 | 38 | 0 | 0 |
Best forecast wave conditions in Kanagawa | |||||||||||||||||||||||
Best forecast wave conditions in Japan | |||||||||||||||||||||||
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