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Loading Travel Forecast…Loading Travel Forecast…Loading Travel Forecast…Join Princess Cruises's Diamond Princess for a 17-night voyage on the Grand Japan route, setting out from Yokohama, Japan on July 11, 2026. It's a classic Asia cruise. Travelers sailing in July can generally expect cooler, off-season conditions. Ports of call include Yokohama, Japan, Toba, Japan, Kobe/Osaka, Japan, with 11 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 17-night Grand Japan cruise on Diamond Princess. Expected weather: partially cloudy with highs near 86°F.
Toba, Japan is a scheduled port of call on day 2 of the 17-night Grand Japan cruise on Diamond Princess. Expected weather: partially cloudy with highs near 88°F.
Kobe/Osaka, Japan is a scheduled port of call on day 3 of the 17-night Grand Japan cruise on Diamond Princess. Expected weather: partially cloudy with highs near 93°F.
Kochi, Japan is a scheduled port of call on day 4 of the 17-night Grand Japan cruise on Diamond Princess. Expected weather: partially cloudy with highs near 87°F.
Hiroshima, Japan is a scheduled port of call on day 5 of the 17-night Grand Japan cruise on Diamond Princess. Expected weather: partially cloudy with highs near 86°F.
Busan, South Korea is a scheduled port of call on day 6 of the 17-night Grand Japan cruise on Diamond Princess. Expected weather: overcast with highs near 91°F.
Nagasaki, Japan is a scheduled port of call on day 7 of the 17-night Grand Japan cruise on Diamond Princess. Expected weather: rain, partially cloudy with highs near 86°F.
Shimizu, Japan is a scheduled port of call on day 8 of the 17-night Grand Japan cruise on Diamond Princess. Expected weather: rain, partially cloudy with highs near 82°F.
Yokohama, Japan is a scheduled port of call on day 9 of the 17-night Grand Japan cruise on Diamond Princess. Expected weather: rain, partially cloudy with highs near 85°F.
Toba, Japan is a scheduled port of call on day 10 of the 17-night Grand Japan cruise on Diamond Princess. Expected weather: partially cloudy with highs near 88°F.
Kochi, Japan is a scheduled port of call on day 11 of the 17-night Grand Japan cruise on Diamond Princess. Expected weather: rain, partially cloudy with highs near 86°F.
Seogwipo-si, South Korea is a scheduled port of call on day 12 of the 17-night Grand Japan cruise on Diamond Princess. Expected weather: partially cloudy with highs near 79°F.
Kagoshima, Japan is a scheduled port of call on day 13 of the 17-night Grand Japan cruise on Diamond Princess. Expected weather: clear with highs near 90°F.
Yokohama, Japan is a scheduled port of call on day 14 of the 17-night Grand Japan cruise on Diamond Princess. Expected weather: partially cloudy with highs near 82°F.
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