Surf Forecasts:
How big are the waves at Rock Island today (02 Jul):
- Morning surf: Morning surf (02 Jul, local time) - 2.5ft (0.7m), 4s period with SSW swell.
- Afternoon surf: Afternoon surf (02 Jul, local time) - 3.5ft (1.0m), 7s period with SSW swell.
- Evening surf: Evening surf (02 Jul, local time) - 2.5ft (0.8m), 8s period with SSW swell.
The current surf forecast for Rock Island at 5PM is: 0.9m 7s primary swell from a South-southwest direction and 0.1m 9s secondary swell from a Southeast direction (forecast issued at 08:00am July 02). An open ocean swell of 0.3m 3s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (02 Jul) | 2.5ft (0.7m) | 4s |
| Afternoon (02 Jul) | 3.5ft (1.0m) | 7s |
| Evening (02 Jul) | 2.5ft (0.8m) | 8s |
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 23mm), heaviest during Thu morning. Warm (max 24°C on Sat afternoon, min 20°C on Thu morning). Wind will be generally light. | ||||||||||||||||||||||||
Thursday 2 | Friday 3 | Saturday 4 | Sun 5 | |||||||||||||||||||||
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 | 12 AM | 3 AM | |
Swell Height Map |  |  |  |  |  |  |  |  |  | |||||||||||||||
Wave Height (m) Direction Period (s) | ESE 13 | SSW 4 | SSW 6 | SSW 7 | SSW 7 | SSW 8 | SSW 7 | S 7 | S 7 | S 7 | S 6 | S 6 | S 6 | S 6 | S 6 | S 6 | S 6 | S 6 | S 5 | S 5 | S 3 | S 3 | SE 10 | SE 9 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 16 | 20 | 209 | 99 | 94 | 75 | 52 | 36 | 36 | 24 | 12 | 10 | 11 | 6 | 7 | 6 | 3 | 3 | 3 | 5 | 4 | 4 | 4 | 12 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross | cross-off | off | off | off | off | off | off | off | glassy | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | cross-on | cross-on |
High Tide | 5:12AM1.49m | 7:45PM1.43m | 5:59AM1.46m | 8:16PM1.41m | 6:47AM1.42m | 8:47PM1.39m | ||||||||||||||||||
Low Tide | 12:32PM-0.02m | 00:47AM0.96m | 1:10PM0.05m | 1:30AM0.90m | 1:49PM0.16m | 2:15AM0.83m | ||||||||||||||||||
 |  |  | |  |  | | | | | |  | | |  | | | | | | | | |  | |
 | 4:30 | — | — | — | — | — | — | 4:31 | — | — | — | — | — | — | — | 4:31 | — | — | — | — | — | — | — | 4:31 |
 | — | — | — | — | 7:00 | — | — | — | — | — | — | — | 7:00 | — | — | — | — | — | — | — | 7:00 | — | — | 7:00 |
mm | 6 | 3 | 14 | 3 | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 |
Temp °C | 22 | 22 | 20 | 21 | 21 | 21 | 21 | 21 | 20 | 21 | 21 | 22 | 22 | 22 | 22 | 21 | 21 | 22 | 23 | 24 | 23 | 23 | 23 | 23 |
Feels °C | 22 | 24 | 18 | 20 | 20 | 20 | 21 | 22 | 20 | 22 | 23 | 23 | 23 | 24 | 24 | 23 | 23 | 24 | 24 | 24 | 23 | 24 | 24 | 24 |
Swell 1 Height (m) Direction Period (s) | SE 9 | SE 9 | SSW 6 | SSW 7 | SSW 7 | SSW 8 | SSW 7 | S 7 | S 7 | S 7 | S 6 | S 6 | S 6 | S 6 | S 6 | S 6 | S 6 | S 6 | SE 9 | SE 9 | SE 10 | SE 10 | SE 10 | SE 10 |
| kJ | 3 | 3 | 66 | 99 | 94 | 75 | 52 | 36 | 36 | 24 | 12 | 10 | 11 | 6 | 7 | 6 | 2 | 2 | 3 | 3 | 4 | 4 | 4 | 4 |
Swell 2 Height (m) Direction Period (s) | E 12 | E 12 | SE 9 | E 12 | SE 9 | SE 8 | SE 8 | SE 8 | SE 9 | SE 8 | SSW 7 | SSW 7 | SW 7 | SW 6 | SE 9 | SE 9 | SE 9 | SE 9 | — | S 6 | — | SW 6 | S 5 | SE 9 |
| kJ | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 5 | 5 | 2 | 2 | 3 | 3 | 3 | 3 | — | 1 | — | 1 | 1 | 12 |
Swell 3 Height (m) Direction Period (s) | ESE 13 | SE 13 | E 12 | SE 9 | E 12 | E 12 | E 12 | E 12 | E 12 | E 12 | SE 9 | SE 9 | SE 8 | SE 9 | SE 9 | SW 7 | SW 7 | SW 7 | — | — | E 6 | E 6 | S 5 | SE 11 |
| kJ | 16 | 7 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | — | — | 1 | 1 | 1 | 5 |
Wind waves Height (m) Direction Period (s) | S 4 | SSW 4 | SSW 6 | N 2 | N 3 | NNE 3 | — | — | — | — | — | — | — | — | — | — | — | — | S 5 | S 5 | S 3 | S 3 | S 3 | S 3 |
| kJ | 9 | 20 | 209 | 1 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 5 | 2 | 3 | 2 | 4 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 77 | 491 | 8 | 0 | 0 | 0 | 0 | 38 | 38 | 16 | 16 | 16 | 74 | 74 | 55 | 55 | 55 | 55 | 77 | 77 | 76 | 76 | 76 | 76 |
Best forecast wave conditions in Kanagawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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