Surf Forecasts:
How big are the waves at Rock Island today (27 Jun):
- Morning surf: Morning surf (27 Jun, local time) - 4.5ft (1.4m), 8s period with S swell.
- Afternoon surf: Afternoon surf (27 Jun, local time) - 8ft (2.5m), 9s period with SSW swell.
- Evening surf: Evening surf (27 Jun, local time) - 11ft (3.5m), 9s period with SSW swell.
The current surf forecast for Rock Island at 4AM is: 0.8m 6s primary swell from a South direction and 0.3m 13s secondary swell from a Southwest direction, 0.2m 10s secondary swell from a South-southwest direction (forecast issued at 08:00pm June 26). The wind direction is predicted to be cross-offshore.
| Time (JST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (27 Jun) | 4.5ft (1.4m) | 8s |
| Afternoon (27 Jun) | 8ft (2.5m) | 9s |
| Evening (27 Jun) | 11ft (3.5m) | 9s |
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 122mm), heaviest during Sat night. Warm (max 24°C on Sat night, min 21°C on Sun night). Wind will be generally light. | ||||||||||||||||||||||||
Fri 26 | Saturday 27 | Sunday 28 | Monday 29 | |||||||||||||||||||||
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) | SSW 6 | S 6 | SSW 6 | S 6 | S 7 | S 8 | S 9 | SSW 9 | S 8 | SSW 9 | SSW 11 | S 11 | S 11 | S 10 | S 10 | S 10 | S 9 | S 9 | SSE 8 | SSE 8 | S 8 | S 8 | S 8 | SW 8 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 115 | 81 | 66 | 52 | 44 | 247 | 356 | 950 | 287 | 1550 | 1267 | 1208 | 862 | 325 | 339 | 262 | 157 | 155 | 65 | 45 | 64 | 29 | 29 | 17 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross-on | cross-on | cross-off | cross-on | on | on | glassy | off | cross-off | on | cross | cross-off | cross | cross | cross-off | off | off | off | off | off | cross-off | cross-off |
High Tide | 3:20PM1.19m | 1:24AM1.37m | 4:24PM1.27m | 2:09AM1.41m | 5:16PM1.34m | 2:55AM1.44m | ||||||||||||||||||
Low Tide | 7:50PM0.97m | 8:58AM0.20m | 8:55PM1.03m | 9:46AM0.09m | 9:51PM1.06m | 10:30AM0.01m | ||||||||||||||||||
 |  | | |  |  |  | | |  |  |  |  | | | | | |  | | | | | | |
 | — | — | — | 4:28 | — | — | — | — | — | — | — | 4:28 | — | — | — | — | — | — | — | 4:28 | — | — | — | — |
 | 7:00 | — | — | — | — | — | — | — | 7:00 | — | — | — | — | — | — | — | 7:00 | — | — | — | — | — | — | 7:00 |
mm | 1 | 1 | 1 | 2 | 31 | — | 2 | 21 | 27 | 32 | 1 | — | — | — | — | 1 | 1 | 1 | — | 1 | — | — | — | — |
Temp °C | 24 | 23 | 23 | 22 | 22 | 23 | 22 | 23 | 23 | 23 | 23 | 24 | 24 | 24 | 22 | 22 | 22 | 21 | 21 | 21 | 21 | 22 | 24 | 24 |
Feels °C | 23 | 23 | 24 | 24 | 22 | 24 | 22 | 23 | 28 | 24 | 22 | 26 | 26 | 27 | 21 | 21 | 24 | 22 | 22 | 22 | 22 | 22 | 25 | 25 |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 12 | SW 11 | SW 13 | S 7 | S 8 | S 9 | S 9 | S 8 | S 8 | SSW 11 | S 11 | S 11 | S 10 | S 10 | S 10 | S 9 | S 9 | SSE 8 | SSE 8 | S 8 | S 8 | S 8 | SSE 7 |
| kJ | 37 | 21 | 20 | 28 | 44 | 247 | 356 | 348 | 287 | 377 | 1267 | 1208 | 862 | 325 | 339 | 262 | 157 | 155 | 65 | 45 | 64 | 29 | 29 | 16 |
Swell 2 Height (m) Direction Period (s) | SW 15 | SW 14 | SSW 14 | SSW 10 | SSW 6 | SW 13 | SW 13 | SSW 15 | SSW 13 | SSW 12 | E 16 | E 16 | E 16 | SSW 11 | E 16 | E 15 | SW 10 | E 15 | SSW 9 | SSW 8 | SW 9 | SSW 8 | SW 8 | SW 8 |
| kJ | 8 | 32 | 18 | 10 | 13 | 27 | 26 | 86 | 158 | 172 | 5 | 5 | 5 | 163 | 5 | 4 | 50 | 4 | 32 | 23 | 21 | 28 | 18 | 17 |
Swell 3 Height (m) Direction Period (s) | SE 11 | SE 10 | SE 10 | SE 10 | SW 13 | E 16 | SW 16 | SW 12 | E 16 | E 16 | SE 16 | SE 16 | — | — | — | SE 15 | E 15 | ESE 15 | E 15 | SW 9 | E 15 | SSE 9 | SSE 9 | SE 9 |
| kJ | 4 | 4 | 4 | 4 | 28 | 5 | 10 | 6 | 5 | 5 | 10 | 10 | — | — | — | 9 | 4 | 21 | 4 | 19 | 4 | 8 | 8 | 12 |
Wind waves Height (m) Direction Period (s) | SSW 6 | S 6 | SSW 6 | S 6 | — | — | — | SSW 9 | S 7 | SSW 9 | — | — | — | — | — | SE 3 | — | — | — | — | NNE 2 | NNE 2 | — | — |
| kJ | 115 | 81 | 66 | 52 | — | — | — | 950 | 251 | 1550 | — | — | — | — | — | 6 | — | — | — | — | 1 | 1 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 136 | 92 | 12 | 17 | 1 | 18 | 145 | 14 | 0 | 0 | 7 | 14 | 17 | 0 | 92 | 77 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 38 |
Best forecast wave conditions in Kanagawa | ||||||||||||||||||||||||
Best forecast wave conditions in Japan | ||||||||||||||||||||||||
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