Surf Forecasts:
How big are the waves at Rock Island today (06 Jul):
- Morning surf: Morning surf (06 Jul, local time) - 3.5ft (1.0m), 7s period with SE swell.
- Afternoon surf: Afternoon surf (06 Jul, local time) - 3ft (0.9m), 7s period with SE swell.
- Evening surf: Evening surf (06 Jul, local time) - 2ft (0.6m), 13s period with SSE swell.
The current surf forecast for Rock Island at 5AM is: 1.0m 7s primary swell from a Southeast direction and 0.6m 7s secondary swell from a South-southeast direction, 0.3m 15s secondary swell from a Southeast direction (forecast issued at 02:00am July 06). The wind direction is predicted to be cross-shore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (06 Jul) | 3.5ft (1.0m) | 7s |
| Afternoon (06 Jul) | 3ft (0.9m) | 7s |
| Evening (06 Jul) | 2ft (0.6m) | 13s |
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 6mm), mostly falling on Mon morning. Warm (max 26°C on Tue afternoon, min 21°C on Mon night). Wind will be generally light. | ||||||||||||||||||||||||
Monday 6 | Tuesday 7 | Wednesday 8 | ||||||||||||||||||||||
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) | SE 7 | SE 7 | SE 7 | SE 7 | SE 7 | SE 7 | SE 16 | SSE 13 | SSE 14 | SSE 16 | SSE 15 | SSE 15 | SSE 16 | SSE 15 | SSE 14 | SSE 14 | SSE 14 | SSE 16 | SSE 18 | SSE 17 | SSE 16 | SSE 16 | SSE 16 | SSE 15 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 99 | 89 | 89 | 89 | 89 | 77 | 64 | 120 | 138 | 103 | 150 | 201 | 419 | 443 | 553 | 538 | 328 | 641 | 670 | 1532 | 1360 | 1631 | 1245 | 1404 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross | cross-on | cross | cross-off | off | off | off | off | off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | glassy | cross-on | on | cross-on |
High Tide | 9:18PM1.38m | 8:36AM1.27m | 9:50PM1.36m | 9:44AM1.18m | 10:23PM1.35m | 11:09AM1.11m | ||||||||||||||||||
Low Tide | 3:05AM0.76m | 3:07PM0.44m | 4:01AM0.69m | 3:48PM0.60m | 5:04AM0.60m | 4:34PM0.76m | ||||||||||||||||||
 |  |  |  | | | | | | |  |  | | | |  | | |  | | | | |  | |
 | — | 4:31 | — | — | — | — | — | — | — | 4:33 | — | — | — | — | — | — | — | 4:33 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 7:00 | — | — | — | — | — | — | — | 6:59 | — | — | — | — | — | — | — | 6:59 | — |
mm | — | 2 | 2 | 1 | 1 | 1 | 1 | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 22 | 22 | 22 | 23 | 23 | 23 | 22 | 22 | 21 | 21 | 23 | 25 | 26 | 25 | 23 | 22 | 22 | 22 | 23 | 24 | 24 | 25 | 23 |
Feels °C | 24 | 23 | 23 | 23 | 25 | 25 | 24 | 23 | 23 | 21 | 21 | 23 | 24 | 26 | 26 | 24 | 23 | 24 | 23 | 25 | 26 | 24 | 27 | 24 |
Swell 1 Height (m) Direction Period (s) | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SE 7 | SSE 13 | SSE 14 | SE 12 | SSE 15 | SSE 15 | SSE 16 | SSE 15 | SSE 14 | SSE 14 | SSE 14 | SSE 16 | SSE 14 | SSE 17 | SSE 16 | SSE 16 | SSE 16 | SSE 15 |
| kJ | 40 | 30 | 31 | 31 | 31 | 31 | 23 | 120 | 138 | 75 | 150 | 201 | 419 | 443 | 553 | 538 | 328 | 641 | 419 | 1532 | 1360 | 1631 | 1245 | 1404 |
Swell 2 Height (m) Direction Period (s) | SE 15 | SSE 14 | SE 15 | SE 15 | SE 14 | SE 14 | SE 13 | SE 7 | SE 7 | SE 7 | SE 12 | SE 12 | SE 6 | SSE 20 | SE 11 | — | SSE 18 | SSE 19 | SSE 18 | — | S 21 | S 18 | S 19 | ESE 8 |
| kJ | 9 | 21 | 57 | 54 | 52 | 70 | 43 | 23 | 16 | 16 | 68 | 67 | 21 | 75 | 249 | — | 190 | 286 | 670 | — | 144 | 801 | 354 | 59 |
Swell 3 Height (m) Direction Period (s) | SSW 6 | SSE 17 | SW 6 | SW 6 | SSE 17 | SSE 16 | SE 16 | S 7 | S 7 | SSE 16 | SE 7 | SE 7 | — | — | — | — | SSE 16 | — | — | — | — | — | ESE 8 | — |
| kJ | 4 | 30 | 2 | 2 | 30 | 27 | 64 | 1 | 1 | 103 | 16 | 11 | — | — | — | — | 102 | — | — | — | — | — | 62 | — |
Wind waves Height (m) Direction Period (s) | SE 7 | SE 7 | SE 7 | SE 7 | SE 7 | SE 7 | — | — | — | — | — | — | — | ESE 7 | — | — | — | — | — | — | — | — | — | — |
| kJ | 99 | 89 | 89 | 89 | 89 | 77 | — | — | — | — | — | — | — | 38 | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 12 | 145 | 64 | 64 | 12 | 7 | 64 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 12 | 0 | 0 | 0 | 0 | 0 | 0 | 38 | 14 | 38 |
Best forecast wave conditions in Kanagawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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