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Lat Long: 35.29° N 139.55° E
Issued: 8 pm 01 Jul 2026 (local time)
Forecast update in hr min
1.0°C colder than average for this time of year
Rock Island surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Osaki
1:27 pm 19 Oct 2012
1:04 pm 19 Oct 2012
7:38 am 2 Sep 2011
Osaki typhoon swell
7:55 am 27 Nov 2012