Surf Forecasts:
How big are the waves at Rock Island today (19 Jun):
- Afternoon surf: Afternoon surf (19 Jun, local time) - 1.5ft (0.5m), 6s period with S swell.
- Evening surf: Evening surf (19 Jun, local time) - 0.5ft (0.2m), 10s period with SSE swell.
The current surf forecast for Rock Island at 7PM is: 0.2m 10s primary swell from a South-southeast direction and 0.3m 6s secondary swell from a South direction, 0.4m 3s secondary swell from a South direction (forecast issued at 02:00pm June 19). The wind direction is predicted to be cross-onshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 Jun) | - | - |
| Afternoon (19 Jun) | 1.5ft (0.5m) | 6s |
| Evening (19 Jun) | 0.5ft (0.2m) | 10s |
Table - waves today at Rock Island. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 39mm), heaviest during Sat night. Warm (max 26°C on Sun afternoon, min 21°C on Fri night). Winds decreasing (fresh winds from the SSE on Sat night, calm by Sun night). | ||||||||||||||||||||||||
Fri 19 | Saturday 20 | Sunday 21 | Mon 22 | |||||||||||||||||||||
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 | 9 AM | |
Swell Height Map |  |  |  |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | SSW 7 | S 6 | SSE 10 | SSE 10 | S 6 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SE 10 | SSE 10 | SSE 10 | SSE 4 | SSE 5 | SSW 6 | SSW 6 | SSW 7 | SSW 8 | SW 8 | SSW 7 | SSW 8 | SSW 8 | SSW 8 | SSW 8 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 15 | 19 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 24 | 9 | 9 | 30 | 106 | 105 | 132 | 329 | 271 | 368 | 114 | 87 | 62 | 75 | 80 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross-on | cross-on | cross-on | cross-off | cross-off | off | off | glassy | cross-on | cross-on | cross-on | cross-on | on | cross-on | on | on | on | cross-off | glassy | off | off | cross |
High Tide | 8:53PM1.37m | 7:09AM1.36m | 9:28PM1.35m | 8:05AM1.28m | 10:04PM1.33m | |||||||||||||||||||
Low Tide | 1:38PM0.05m | 2:01AM0.93m | 2:19PM0.17m | 2:54AM0.87m | 3:02PM0.31m | 3:53AM0.80m | ||||||||||||||||||
 |  | |  | |  |  |  | | |  |  |  | | |  | | | |  | | | | | |
 | — | — | — | — | — | 4:26 | — | — | — | — | — | — | — | 4:26 | — | — | — | — | — | — | — | 4:26 | — | — |
 | — | — | 6:59 | — | — | — | — | — | — | — | 6:59 | — | — | — | — | — | — | — | 6:59 | — | — | — | — | 6:59 |
mm | — | — | — | — | — | 1 | 1 | — | 2 | 5 | 6 | 5 | 7 | 3 | 8 | 1 | — | — | — | — | — | — | — | — |
Temp °C | 23 | 24 | 24 | 23 | 23 | 23 | 21 | 22 | 22 | 21 | 21 | 21 | 21 | 21 | 22 | 22 | 24 | 25 | 26 | 25 | 23 | 23 | 22 | 23 |
Feels °C | 24 | 25 | 26 | 25 | 26 | 26 | 22 | 23 | 24 | 24 | 23 | 22 | 18 | 18 | 22 | 24 | 26 | 26 | 26 | 27 | 26 | 24 | 23 | 25 |
Swell 1 Height (m) Direction Period (s) | SSW 7 | SSE 10 | S 6 | S 6 | S 6 | S 5 | S 5 | SSW 6 | SSW 6 | SSE 10 | SSE 4 | SSE 10 | SE 12 | SE 12 | S 6 | S 6 | S 7 | SSW 8 | SSW 7 | SSW 7 | SSW 8 | SSW 8 | SSW 8 | SSW 8 |
| kJ | 15 | 10 | 6 | 6 | 9 | 5 | 2 | 4 | 4 | 9 | 7 | 9 | 6 | 5 | 74 | 52 | 112 | 102 | 111 | 114 | 87 | 62 | 75 | 80 |
Swell 2 Height (m) Direction Period (s) | SE 6 | SE 14 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SE 12 | SSE 10 | SW 7 | E 10 | E 10 | SE 9 | SE 9 | SE 11 | SSE 9 | SSE 9 | SSE 9 | SSE 10 | SSE 10 | SSE 10 | SSE 10 |
| kJ | 10 | 7 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 6 | 9 | 2 | 8 | 2 | 3 | 3 | 5 | 8 | 8 | 9 | 10 | 10 | 10 | 10 |
Swell 3 Height (m) Direction Period (s) | SSE 10 | SE 14 | SE 14 | SW 7 | SSW 7 | SW 7 | SW 7 | SE 5 | SE 12 | SE 10 | SE 12 | SE 12 | — | — | SE 12 | SE 11 | SE 9 | SE 11 | SE 11 | SE 11 | E 16 | E 16 | E 10 | E 10 |
| kJ | 10 | 7 | 7 | 2 | 5 | 2 | 2 | 1 | 6 | 24 | 6 | 6 | — | — | 5 | 5 | 3 | 5 | 5 | 5 | 5 | 5 | 17 | 17 |
Wind waves Height (m) Direction Period (s) | — | S 6 | S 3 | S 3 | — | — | — | — | SSE 3 | S 4 | — | SSE 5 | SSE 4 | SSE 5 | SSW 6 | SSW 6 | SSW 7 | SSW 8 | SW 8 | — | — | — | — | — |
| kJ | — | 19 | 3 | 3 | — | — | — | — | 1 | 9 | — | 7 | 30 | 106 | 105 | 132 | 329 | 271 | 368 | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 18 | 77 | 77 | 77 | 55 | 77 | 145 | 145 | 145 | 16 | 145 | 991 | 77 | 491 | 14 | 14 | 14 | 14 | 14 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Kanagawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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