Surf Forecasts:
How big are the waves at Rock Island today (05 Jun):
- Morning surf: Morning surf (05 Jun, local time) - 1ft (0.3m), 7s period with SSW swell.
- Afternoon surf: Afternoon surf (05 Jun, local time) - 0.5ft (0.2m), 7s period with SSW swell.
- Evening surf: Evening surf (05 Jun, local time) - 0.5ft (0.2m), 7s period with SSW swell.
The current surf forecast for Rock Island at 3AM is: 0.4m 8s primary swell from a South-southwest direction and 0.1m 8s secondary swell from a Southeast direction (forecast issued at 08:00pm June 04). An open ocean swell of 0.3m 2s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (05 Jun) | 1ft (0.3m) | 7s |
| Afternoon (05 Jun) | 0.5ft (0.2m) | 7s |
| Evening (05 Jun) | 0.5ft (0.2m) | 7s |
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 10mm), heaviest on Sun afternoon. Warm (max 21°C on Thu night, min 16°C on Fri night). Winds decreasing (fresh winds from the ENE on Fri afternoon, light winds from the E by Sat night). | ||||||||||||||||||||||||
Thu 4 | Friday 5 | Saturday 6 | Sunday 7 | |||||||||||||||||||||
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 | 6 AM | 9 AM | 12 PM | 3 PM | |
Swell Height Map |  |  |  |  |  |  |  |  |  | |||||||||||||||
Wave Height (m) Direction Period (s) | S 8 | S 8 | S 8 | SSW 8 | SSW 8 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SE 11 | SE 11 | SE 11 | SE 11 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 7 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 51 | 33 | 33 | 20 | 19 | 11 | 10 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 4 | 4 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | cross-off | off | off | off | cross-off | cross-off | cross-off | cross-off | off | off | off | off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | off | cross-off |
High Tide | 8:48PM1.34m | 6:42AM1.36m | 9:31PM1.32m | 7:33AM1.29m | 10:13PM1.29m | 8:35AM1.20m | ||||||||||||||||||
Low Tide | 1:41AM0.99m | 2:07PM0.07m | 2:34AM0.96m | 2:53PM0.19m | 3:38AM0.90m | |||||||||||||||||||
 |  |  |  |  |  | | | | | | | | | | | | | | | | | |  | |
 | — | — | — | 4:26 | — | — | — | — | — | — | — | 4:26 | — | — | — | — | — | — | — | 4:26 | — | — | — | — |
 | 6:52 | — | — | — | — | — | — | — | 6:52 | — | — | — | — | — | — | — | 6:52 | — | — | — | — | — | — | 6:53 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 |
Temp °C | 21 | 21 | 20 | 19 | 18 | 18 | 20 | 20 | 18 | 17 | 17 | 17 | 16 | 17 | 19 | 21 | 21 | 19 | 19 | 18 | 18 | 19 | 19 | 19 |
Feels °C | 19 | 18 | 16 | 14 | 13 | 13 | 16 | 15 | 13 | 12 | 12 | 13 | 12 | 13 | 16 | 19 | 20 | 18 | 20 | 17 | 17 | 18 | 19 | 20 |
Swell 1 Height (m) Direction Period (s) | S 8 | S 8 | S 8 | SSW 8 | SSW 8 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | S 7 | S 7 | S 7 | S 7 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 7 |
| kJ | 51 | 33 | 33 | 20 | 19 | 11 | 10 | 5 | 5 | 5 | 5 | 1 | 1 | 1 | 1 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 4 | 4 |
Swell 2 Height (m) Direction Period (s) | SE 8 | SE 8 | SE 8 | SE 8 | SE 7 | SE 7 | SE 7 | SE 12 | SE 12 | SE 12 | E 3 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | SE 11 | — | — | SE 4 | E 6 | SE 10 | SE 10 |
| kJ | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 5 | 5 | 5 | 1 | 5 | 5 | 5 | 5 | 5 | 5 | 4 | — | — | 1 | 1 | 4 | 4 |
Swell 3 Height (m) Direction Period (s) | SE 12 | SE 12 | SE 11 | SE 11 | SE 11 | SE 12 | SE 12 | SE 7 | E 7 | SE 7 | SE 12 | E 7 | — | — | E 5 | — | — | SE 11 | SE 10 | SE 10 | SE 10 | SE 10 | — | E 14 |
| kJ | 6 | 6 | 5 | 5 | 5 | 5 | 5 | 2 | 1 | 2 | 5 | 1 | — | — | 1 | — | — | 4 | 4 | 4 | 4 | 4 | — | 4 |
Wind waves Height (m) Direction Period (s) | — | — | — | NNE 2 | NE 3 | NE 3 | ENE 3 | ENE 3 | ENE 3 | ENE 3 | NE 3 | NE 3 | NE 3 | NNE 2 | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | 1 | 3 | 3 | 3 | 4 | 3 | 4 | 1 | 2 | 1 | 1 | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 38 | 51 | 55 | 145 | 565 | 755 | 1425 | 491 | 491 | 491 | 491 | 487 | 491 | 491 | 64 | 64 | 61 | 55 | 55 | 55 | 565 | 16 | 1224 |
Best forecast wave conditions in Kanagawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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