
Surf Forecasts:
How big are the waves at Rock Island today (23 Jun):
- Morning surf: Morning surf (23 Jun, local time) - 0.5ft (0.2m), 11s period with SSE swell.
- Afternoon surf: Afternoon surf (23 Jun, local time) - 0.5ft (0.2m), 11s period with SSE swell.
- Evening surf: Evening surf (23 Jun, local time) - 0.5ft (0.2m), 11s period with SSE swell.
The current surf forecast for Rock Island at 6AM is: 0.2m 11s primary swell from a South-southeast direction and 0.2m 6s secondary swell from a South direction (forecast issued at 02:00am June 23). An open ocean swell of 0.3m 2s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (23 Jun) | 0.5ft (0.2m) | 11s |
| Afternoon (23 Jun) | 0.5ft (0.2m) | 11s |
| Evening (23 Jun) | 0.5ft (0.2m) | 11s |
Table - waves today at Rock Island. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 17mm), heaviest on Thu morning. Warm (max 24°C on Thu night, min 19°C on Thu morning). Winds increasing (calm on Thu morning, strong winds from the SSW by Thu night). | ||||||||||||||||||||||||
Tuesday 23 | Wednesday 24 | Thursday 25 | ||||||||||||||||||||||
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) | SSE 6 | SSE 10 | SSE 11 | SSE 11 | SSE 11 | SSE 11 | SSE 11 | SSE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SW 16 | SW 15 | SSW 14 | SW 14 | SW 13 |
Wave Graph | ||||||||||||||||||||||||
11 | 10 | 12 | 13 | 13 | 12 | 12 | 12 | 18 | 18 | 18 | 18 | 18 | 17 | 17 | 17 | 17 | 16 | 16 | 38 | 35 | 113 | 64 | 88 | |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | off | cross-off | off | cross-off | cross-off | cross-off | cross-off | off | off | glassy | on | cross-on | cross-on | glassy | glassy | glassy | cross-on | glassy | glassy | cross | cross-off |
High Tide | 10:40PM1.32m | 10:34AM1.11m | 11:18PM1.31m | 12:14PM1.08m | 11:58PM1.32m | 1:55PM1.11m | ||||||||||||||||||
Low Tide | 4:58AM0.71m | 4:37PM0.61m | 6:05AM0.59m | 5:35PM0.76m | 7:09AM0.46m | 6:41PM0.88m | ||||||||||||||||||
— | 4:26 | — | — | — | — | — | — | — | 4:26 | — | — | — | — | — | — | — | 4:28 | — | — | — | — | — | — | |
— | — | — | — | — | — | 7:00 | — | — | — | — | — | — | — | 7:00 | — | — | — | — | — | — | — | 7:00 | — | |
mm | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 4 | 1 | 2 | 1 |
Temp °C | 20 | 20 | 19 | 20 | 21 | 22 | 22 | 20 | 20 | 20 | 20 | 20 | 22 | 22 | 22 | 22 | 21 | 21 | 21 | 20 | 19 | 19 | 20 | 20 |
Feels °C | 20 | 18 | 16 | 17 | 19 | 21 | 22 | 19 | 20 | 19 | 20 | 20 | 23 | 23 | 22 | 23 | 23 | 23 | 23 | 21 | 22 | 21 | 21 | 22 |
Swell 1 Height (m) Direction Period (s) | SSE 6 | SSE 6 | SSE 11 | SSE 11 | SSE 11 | SSE 11 | SSE 11 | SSE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | S 9 | SW 16 | SSW 9 | SSW 14 | SW 14 | SW 13 |
11 | 7 | 12 | 13 | 13 | 12 | 12 | 12 | 18 | 18 | 18 | 18 | 18 | 17 | 17 | 17 | 17 | 16 | 15 | 38 | 17 | 113 | 64 | 88 | |
Swell 2 Height (m) Direction Period (s) | SSE 10 | SSE 10 | S 6 | S 6 | S 6 | SSE 6 | S 6 | S 6 | S 6 | S 5 | S 5 | SSE 5 | SSE 5 | S 11 | S 11 | S 10 | SSW 10 | SSW 10 | SE 10 | SSW 9 | SW 15 | SSE 10 | SSW 9 | SE 4 |
10 | 10 | 3 | 3 | 3 | 3 | 2 | 2 | 1 | 1 | 1 | 3 | 3 | 10 | 2 | 2 | 10 | 9 | 16 | 16 | 35 | 10 | 17 | 6 | |
Swell 3 Height (m) Direction Period (s) | SSW 7 | SW 7 | SW 7 | SW 7 | ENE 3 | S 6 | S 10 | S 10 | — | — | S 9 | S 11 | S 10 | — | — | S 7 | — | S 8 | SW 16 | SE 10 | SE 10 | — | SSE 10 | SSW 9 |
5 | 2 | 2 | 2 | 1 | 1 | 2 | 2 | — | — | 2 | 2 | 2 | — | — | 1 | — | 4 | 11 | 16 | 15 | — | 10 | 8 | |
Wind waves Height (m) Direction Period (s) | ESE 4 | — | ENE 2 | ENE 3 | — | — | — | — | — | — | — | — | — | SE 4 | — | SE 4 | — | — | — | — | — | E 8 | SE 3 | SE 5 |
5 | — | 1 | 1 | — | — | — | — | — | — | — | — | — | 1 | — | 1 | — | — | — | — | — | 4 | 2 | 29 | |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 145 | 51 | 74 | 51 | 51 | 64 | 64 | 64 | 61 | 61 | 61 | 61 | 64 | 16 | 64 | 64 | 64 | 64 | 76 | 12 | 0 | 0 | 12 | 0 |
Best forecast wave conditions in Kanagawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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