Surf Forecasts:
How big are the waves at Rock Island today (29 Jun):
- Morning surf: Morning surf (29 Jun, local time) - 2ft (0.6m), 7s period with S swell.
- Afternoon surf: Afternoon surf (29 Jun, local time) - 1.5ft (0.4m), 9s period with SE swell.
- Evening surf: Evening surf (29 Jun, local time) - 2.5ft (0.7m), 8s period with SSW swell.
The current surf forecast for Rock Island at 5AM is: 0.8m 8s primary swell from a South direction and 0.1m 15s secondary swell from a East direction (forecast issued at 02:00am June 29). The wind direction is predicted to be cross-offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (29 Jun) | 2ft (0.6m) | 7s |
| Afternoon (29 Jun) | 1.5ft (0.4m) | 9s |
| Evening (29 Jun) | 2.5ft (0.7m) | 8s |
Table - waves today at Rock Island. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 2mm), mostly falling on Wed night. Warm (max 26°C on Wed afternoon, min 21°C on Mon morning). Wind will be generally light. | ||||||||||||||||||||||||
Monday 29 | Tuesday 30 | Wednesday 1 | ||||||||||||||||||||||
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) | S 8 | S 8 | S 8 | S 7 | S 7 | SE 9 | SE 9 | SSW 8 | SE 9 | SE 10 | SE 10 | SE 10 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SSW 8 | S 7 | S 7 | S 7 | S 6 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 60 | 72 | 82 | 40 | 28 | 20 | 20 | 50 | 22 | 23 | 23 | 23 | 22 | 22 | 21 | 21 | 13 | 13 | 13 | 36 | 28 | 24 | 14 | 12 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | off | cross-off | cross | on | on | on | glassy | cross-off | off | cross-off | cross-on | on | cross-on | on | cross-on | glassy | off | cross-off | cross-off | glassy | on | cross-on |
High Tide | 2:55AM1.44m | 5:59PM1.39m | 3:41AM1.47m | 6:37PM1.42m | 4:26AM1.49m | 7:12PM1.43m | ||||||||||||||||||
Low Tide | 9:51PM1.06m | 10:30AM0.01m | 10:39PM1.06m | 11:12AM-0.04m | 11:24PM1.04m | 11:52AM-0.05m | ||||||||||||||||||
 |  |  | |  | | |  | | | | |  | | | | | | | | | | | | |
 | — | 4:28 | — | — | — | — | — | — | — | 4:28 | — | — | — | — | — | — | — | 4:30 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 7:00 | — | — | — | — | — | — | — | 7:00 | — | — | — | — | — | — | — | 7:00 | — |
mm | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 21 | 21 | 21 | 23 | 24 | 24 | 23 | 23 | 23 | 22 | 23 | 24 | 24 | 23 | 23 | 23 | 22 | 22 | 23 | 25 | 26 | 25 | 24 |
Feels °C | 22 | 22 | 23 | 23 | 25 | 26 | 26 | 26 | 27 | 26 | 24 | 25 | 26 | 26 | 24 | 26 | 26 | 25 | 24 | 24 | 26 | 28 | 26 | 25 |
Swell 1 Height (m) Direction Period (s) | S 8 | S 8 | S 8 | S 7 | S 7 | SSE 7 | SW 7 | SSW 7 | SE 9 | SE 10 | SSW 7 | SE 10 | SE 9 | SE 9 | SE 9 | SE 9 | SSW 7 | SSW 7 | SSW 7 | SSW 8 | S 7 | S 7 | S 7 | S 6 |
| kJ | 60 | 72 | 82 | 40 | 28 | 15 | 14 | 18 | 22 | 23 | 16 | 23 | 22 | 22 | 21 | 21 | 9 | 9 | 9 | 36 | 28 | 24 | 14 | 12 |
Swell 2 Height (m) Direction Period (s) | SW 9 | SW 9 | E 15 | SW 8 | SW 8 | SW 8 | SE 9 | SE 9 | S 7 | SSW 7 | SE 10 | SSW 7 | SSW 7 | E 13 | SSW 6 | SSW 7 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | ESE 9 |
| kJ | 40 | 20 | 4 | 17 | 16 | 16 | 20 | 21 | 8 | 9 | 23 | 10 | 10 | 4 | 8 | 5 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 8 |
Swell 3 Height (m) Direction Period (s) | E 15 | E 15 | SE 9 | SSE 9 | SSE 9 | SE 9 | SSE 6 | E 15 | SSW 7 | SSW 8 | E 14 | E 14 | E 14 | ESE 13 | SW 7 | E 13 | E 13 | — | SSW 9 | E 13 | E 13 | E 13 | E 13 | E 13 |
| kJ | 4 | 4 | 29 | 8 | 8 | 20 | 8 | 4 | 5 | 6 | 4 | 4 | 4 | 18 | 2 | 4 | 4 | — | 8 | 3 | 3 | 3 | 3 | 3 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | SSW 8 | — | — | — | — | — | SSW 7 | — | — | — | — | — | — | — | — | SSW 2 | SSW 3 |
| kJ | — | — | — | — | — | — | — | 50 | — | — | — | — | — | 10 | — | — | — | — | — | — | — | — | 1 | 2 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 18 | 18 | 38 | 16 | 0 | 38 | 16 | 16 | 18 | 38 | 16 | 55 | 16 | 16 | 0 | 0 | 38 |
Best forecast wave conditions in Kanagawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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