Surf Forecasts:
How big are the waves at Rock Island today (07 Jul):
- Morning surf: Morning surf (07 Jul, local time) - 2.5ft (0.7m), 15s period with SSE swell.
- Afternoon surf: Afternoon surf (07 Jul, local time) - 3.5ft (1.0m), 15s period with SSE swell.
- Evening surf: Evening surf (07 Jul, local time) - 3.5ft (1.1m), 14s period with SSE swell.
The current surf forecast for Rock Island at 2PM is: 0.9m 15s primary swell from a South-southeast direction and 0.3m 20s secondary swell from a South-southeast direction (forecast issued at 08:00am July 07). The wind direction is predicted to be cross-offshore and the swell rating is 2.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (07 Jul) | 2.5ft (0.7m) | 15s |
| Afternoon (07 Jul) | 3.5ft (1.0m) | 15s |
| Evening (07 Jul) | 3.5ft (1.1m) | 14s |
Table - waves today at Rock Island. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 25°C on Tue afternoon, min 22°C on Tue morning). Wind will be generally light. | ||||||||||||||||||||||||
Tuesday 7 | Wednesday 8 | Thursday 9 | Fri 10 | |||||||||||||||||||||
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) | SSE 15 | SSE 15 | SSE 16 | SSE 15 | SSE 14 | SSE 14 | SSE 16 | SSE 16 | SSE 17 | SSE 16 | SSE 16 | SSE 16 | SSE 15 | SSE 15 | SSE 14 | SSE 14 | SSE 13 | SSE 14 | SSE 14 | SSE 14 | SSE 13 | S 16 | S 15 | S 15 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 150 | 201 | 419 | 443 | 508 | 501 | 328 | 870 | 528 | 1094 | 1096 | 1055 | 1074 | 1045 | 980 | 953 | 454 | 799 | 811 | 799 | 627 | 1402 | 1344 | 1225 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | cross-off | cross-off | cross-on | cross | cross-off | cross-off | cross-off | cross-off | on | on | on | on | on | on | on | on | on | on | on | on | on | on |
High Tide | 9:44AM1.18m | 10:23PM1.35m | 11:09AM1.11m | 11:00PM1.35m | 12:55PM1.10m | 11:41PM1.36m | ||||||||||||||||||
Low Tide | 4:01AM0.69m | 3:48PM0.60m | 5:04AM0.60m | 4:34PM0.76m | 6:12AM0.50m | 5:31PM0.91m | ||||||||||||||||||
 |  | | | |  |  | | | | | | | | | | | | | | | | | | |
 | 4:33 | — | — | — | — | — | — | 4:33 | — | — | — | — | — | — | — | 4:33 | — | — | — | — | — | — | — | 4:33 |
 | — | — | — | — | 6:59 | — | — | — | — | — | — | — | 6:59 | — | — | — | — | — | — | — | 6:59 | — | — | 6:59 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 22 | 24 | 25 | 24 | 23 | 23 | 22 | 22 | 23 | 24 | 25 | 24 | 24 | 23 | 23 | 23 | 24 | 24 | 25 | 25 | 24 | 24 | 23 |
Feels °C | 20 | 21 | 23 | 25 | 24 | 24 | 25 | 24 | 24 | 25 | 25 | 25 | 24 | 25 | 24 | 24 | 25 | 25 | 24 | 25 | 25 | 24 | 25 | 24 |
Swell 1 Height (m) Direction Period (s) | SSE 15 | SSE 15 | SSE 16 | SSE 15 | SSE 14 | SSE 14 | SSE 14 | SSE 16 | SSE 14 | SSE 16 | SSE 16 | SSE 16 | SSE 15 | SSE 15 | SSE 14 | SSE 14 | SSE 13 | SSE 14 | SSE 14 | SSE 14 | SSE 13 | S 16 | S 15 | S 15 |
| kJ | 150 | 201 | 419 | 443 | 508 | 501 | 328 | 870 | 419 | 1094 | 1096 | 1055 | 1074 | 1045 | 980 | 953 | 454 | 799 | 811 | 799 | 627 | 1402 | 1344 | 1225 |
Swell 2 Height (m) Direction Period (s) | SE 12 | SE 12 | E 6 | SSE 20 | SE 11 | — | SSE 16 | SSE 17 | SSE 17 | — | — | S 18 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | S 15 | S 19 | S 19 | S 18 | S 16 | ESE 8 | ESE 8 | ESE 8 |
| kJ | 68 | 86 | 30 | 75 | 187 | — | 310 | 603 | 528 | — | — | 422 | 20 | 25 | 25 | 37 | 362 | 184 | 446 | 509 | 533 | 21 | 21 | 21 |
Swell 3 Height (m) Direction Period (s) | SE 7 | WSW 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | S 18 | ESE 8 | ESE 8 | — | ESE 8 | — | — | — |
| kJ | 11 | 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 164 | 26 | 22 | — | 21 | — | — | — |
Wind waves Height (m) Direction Period (s) | NNE 3 | NNE 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 1 | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 12 | 0 | 12 | 12 | 0 | 0 | 0 | 0 | 16 | 18 | 14 | 14 | 14 | 14 | 14 | 18 | 64 | 76 | 76 | 76 | 14 | 14 |
Best forecast wave conditions in Kanagawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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