Surf Forecasts:
How big are the waves at Rock Island today (22 Jun):
- Morning surf: Morning surf (22 Jun, local time) - 2ft (0.6m), 8s period with SSW swell.
- Afternoon surf: Afternoon surf (22 Jun, local time) - 1.5ft (0.5m), 7s period with S swell.
- Evening surf: Evening surf (22 Jun, local time) - 1.5ft (0.4m), 6s period with S swell.
The current surf forecast for Rock Island at 9AM is: 0.6m 8s primary swell from a South-southwest direction and 0.2m 10s secondary swell from a South-southeast direction (forecast issued at 02:00am June 22). The wind direction is predicted to be offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (22 Jun) | 2ft (0.6m) | 8s |
| Afternoon (22 Jun) | 1.5ft (0.5m) | 7s |
| Evening (22 Jun) | 1.5ft (0.4m) | 6s |
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 32mm), heaviest during Mon night. Warm (max 23°C on Mon morning, min 19°C on Mon night). Wind will be generally light. | ||||||||||||||||||||||||
Monday 22 | Tuesday 23 | Wednesday 24 | ||||||||||||||||||||||
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) | SSW 8 | SSW 8 | SSW 8 | SSW 8 | S 7 | S 7 | SE 10 | S 6 | SSE 10 | SSE 10 | SE 11 | SE 11 | SE 11 | SSE 11 | SSE 11 | SSE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 10 | SE 10 | SE 10 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 92 | 68 | 48 | 44 | 26 | 21 | 35 | 11 | 10 | 10 | 19 | 20 | 20 | 12 | 12 | 12 | 18 | 18 | 18 | 18 | 18 | 17 | 17 | 17 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | cross-on | on | cross | cross-off | off | off | off | cross-off | glassy | on | on | cross | cross-off | cross-off | cross-off | cross-off | cross-off | on | on | cross |
High Tide | 10:04PM1.33m | 9:12AM1.19m | 10:40PM1.32m | 10:34AM1.11m | 11:18PM1.31m | 12:14PM1.08m | ||||||||||||||||||
Low Tide | 3:53AM0.80m | 3:47PM0.46m | 4:58AM0.71m | 4:37PM0.61m | 6:05AM0.59m | 5:35PM0.76m | ||||||||||||||||||
 | |  | |  | |  |  |  |  | | | | | | | |  | | | | | | | |
 | — | 4:26 | — | — | — | — | — | — | — | 4:26 | — | — | — | — | — | — | — | 4:26 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 6:59 | — | — | — | — | — | — | — | 7:00 | — | — | — | — | — | — | — | 7:00 | — |
mm | — | — | — | — | — | — | 5 | 6 | 4 | 11 | 5 | 1 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 22 | 22 | 23 | 23 | 23 | 21 | 20 | 19 | 19 | 19 | 20 | 21 | 22 | 22 | 21 | 20 | 19 | 19 | 19 | 21 | 22 | 21 | 21 |
Feels °C | 23 | 21 | 22 | 23 | 24 | 24 | 23 | 20 | 20 | 19 | 18 | 19 | 22 | 22 | 22 | 21 | 19 | 18 | 18 | 18 | 21 | 23 | 21 | 22 |
Swell 1 Height (m) Direction Period (s) | SSW 8 | SSW 8 | SSW 8 | SSW 8 | S 7 | SSW 8 | SSE 10 | S 6 | S 6 | SE 4 | SE 4 | SSE 6 | SE 11 | SSE 11 | SSE 11 | SSE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 10 | SE 10 | SE 10 |
| kJ | 92 | 68 | 48 | 44 | 26 | 6 | 10 | 11 | 6 | 2 | 2 | 6 | 20 | 12 | 12 | 12 | 18 | 18 | 18 | 18 | 18 | 17 | 17 | 17 |
Swell 2 Height (m) Direction Period (s) | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SE 10 | SSE 10 | SSE 10 | SSE 10 | SE 11 | SE 11 | S 6 | S 6 | S 10 | S 6 | S 6 | S 5 | S 5 | S 5 | S 5 | S 11 | S 11 | S 10 |
| kJ | 10 | 10 | 10 | 10 | 10 | 10 | 35 | 10 | 10 | 10 | 19 | 20 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 10 | 2 | 2 |
Swell 3 Height (m) Direction Period (s) | E 16 | E 16 | E 16 | E 16 | E 10 | E 10 | E 9 | SSW 7 | SSW 7 | S 6 | S 6 | SSW 7 | SW 6 | SW 6 | E 10 | S 10 | S 10 | S 9 | S 9 | S 11 | S 10 | SSW 11 | S 12 | SW 12 |
| kJ | 5 | 5 | 5 | 5 | 2 | 2 | 2 | 5 | 5 | 3 | 3 | 5 | 2 | 2 | 8 | 2 | 2 | 2 | 2 | 2 | 2 | 13 | 3 | 6 |
Wind waves Height (m) Direction Period (s) | NNE 2 | NNE 2 | — | — | — | S 7 | S 7 | SE 2 | SE 3 | — | — | NE 2 | ENE 2 | — | S 6 | — | — | — | — | — | — | S 5 | S 2 | SSE 3 |
| kJ | 1 | 1 | — | — | — | 21 | 24 | 1 | 1 | — | — | 1 | 1 | — | 6 | — | — | — | — | — | — | 2 | 1 | 1 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 16 | 18 | 12 | 61 | 51 | 51 | 51 | 51 | 16 | 64 | 64 | 64 | 228 | 228 | 145 | 249 | 249 | 16 | 64 | 64 |
Best forecast wave conditions in Kanagawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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