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Join Princess Cruises's Diamond Princess for a 21-night voyage on the Grand Circle Japan with Nebuta & Summer Festivals route, setting out from Yokohama, Japan on August 5, 2026. It's a classic Asia cruise. Travelers sailing in August can generally expect cooler, off-season conditions. Ports of call include Yokohama, Japan, Aomori, Japan, Sakaiminato, Japan, with 14 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 21-night Grand Circle Japan with Nebuta & Summer Festivals cruise on Diamond Princess.
Aomori, Japan is a scheduled port of call on day 2 of the 21-night Grand Circle Japan with Nebuta & Summer Festivals cruise on Diamond Princess.
Sakaiminato, Japan is a scheduled port of call on day 3 of the 21-night Grand Circle Japan with Nebuta & Summer Festivals cruise on Diamond Princess.
Busan, South Korea is a scheduled port of call on day 4 of the 21-night Grand Circle Japan with Nebuta & Summer Festivals cruise on Diamond Princess.
Kochi, Japan is a scheduled port of call on day 5 of the 21-night Grand Circle Japan with Nebuta & Summer Festivals cruise on Diamond Princess.
Tokushima, Japan is a scheduled port of call on day 6 of the 21-night Grand Circle Japan with Nebuta & Summer Festivals cruise on Diamond Princess.
Kobe/Osaka, Japan is a scheduled port of call on day 7 of the 21-night Grand Circle Japan with Nebuta & Summer Festivals cruise on Diamond Princess.
Shimizu, Japan is a scheduled port of call on day 8 of the 21-night Grand Circle Japan with Nebuta & Summer Festivals cruise on Diamond Princess.
Yokohama, Japan is a scheduled port of call on day 9 of the 21-night Grand Circle Japan with Nebuta & Summer Festivals cruise on Diamond Princess.
Kumano, Japan is a scheduled port of call on day 10 of the 21-night Grand Circle Japan with Nebuta & Summer Festivals cruise on Diamond Princess.
Wakayama, Japan is a scheduled port of call on day 11 of the 21-night Grand Circle Japan with Nebuta & Summer Festivals cruise on Diamond Princess.
Kochi, Japan is a scheduled port of call on day 12 of the 21-night Grand Circle Japan with Nebuta & Summer Festivals cruise on Diamond Princess.
Busan, South Korea is a scheduled port of call on day 13 of the 21-night Grand Circle Japan with Nebuta & Summer Festivals cruise on Diamond Princess.
Nagasaki, Japan is a scheduled port of call on day 14 of the 21-night Grand Circle Japan with Nebuta & Summer Festivals cruise on Diamond Princess.
Kagoshima, Japan is a scheduled port of call on day 15 of the 21-night Grand Circle Japan with Nebuta & Summer Festivals cruise on Diamond Princess.
Shimizu, Japan is a scheduled port of call on day 16 of the 21-night Grand Circle Japan with Nebuta & Summer Festivals cruise on Diamond Princess.
Yokohama, Japan is a scheduled port of call on day 17 of the 21-night Grand Circle Japan with Nebuta & Summer Festivals cruise on Diamond Princess.
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