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Join Princess Cruises's Diamond Princess for a 18-night voyage on the Grand Japan with Okinawa & Taiwan route, setting out from Yokohama, Japan on June 23, 2026. It's a classic Asia cruise. Travelers sailing in June can generally expect cooler, off-season conditions. Ports of call include Yokohama, Japan, Keelung, Taiwan, Ishigaki, Japan, with 9 more along the way. The forecasts below break the weather down port by port.
Yokohama, Japan is a scheduled port of call on day 1 of the 18-night Grand Japan with Okinawa & Taiwan cruise on Diamond Princess.
Keelung, Taiwan is a scheduled port of call on day 2 of the 18-night Grand Japan with Okinawa & Taiwan cruise on Diamond Princess.
Ishigaki, Japan is a scheduled port of call on day 3 of the 18-night Grand Japan with Okinawa & Taiwan cruise on Diamond Princess.
Naha, Japan is a scheduled port of call on day 4 of the 18-night Grand Japan with Okinawa & Taiwan cruise on Diamond Princess.
Yokohama, Japan is a scheduled port of call on day 5 of the 18-night Grand Japan with Okinawa & Taiwan cruise on Diamond Princess.
Nagasaki, Japan is a scheduled port of call on day 6 of the 18-night Grand Japan with Okinawa & Taiwan cruise on Diamond Princess.
Busan, South Korea is a scheduled port of call on day 7 of the 18-night Grand Japan with Okinawa & Taiwan cruise on Diamond Princess.
Sakaiminato, Japan is a scheduled port of call on day 8 of the 18-night Grand Japan with Okinawa & Taiwan cruise on Diamond Princess.
Tsuruga, Japan is a scheduled port of call on day 9 of the 18-night Grand Japan with Okinawa & Taiwan cruise on Diamond Princess.
Toyama, Japan is a scheduled port of call on day 10 of the 18-night Grand Japan with Okinawa & Taiwan cruise on Diamond Princess.
Akita, Japan is a scheduled port of call on day 11 of the 18-night Grand Japan with Okinawa & Taiwan cruise on Diamond Princess.
Yokohama, Japan is a scheduled port of call on day 12 of the 18-night Grand Japan with Okinawa & Taiwan cruise on Diamond Princess.
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