MyCruiseForecast

Princess Cruises · 9 nights

Diamond Princess weather: 9-night cruise from Yokohama, October 1, 2026

The Diamond Princess (Princess Cruises) leaves Yokohama on October 1, 2026 for a 9-night cruise, with stops in Toba, Kobe/Osaka, Kochi (Shikoku, Japan), Hiroshima, Busan and Nagasaki. It returns to Yokohama on October 10, 2026. Typical afternoon highs along the route run from 73°F to 78°F (23°C to 26°C), and 2 days are at sea, where seas are typically slight (around 2 ft).

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This page shows typical conditions for these dates. The interactive forecast adds a live day-by-day forecast, wave heights and weather alerts as the sailing gets closer.

Day-by-day itinerary and typical weather

Typical conditions for each date (2022–2025 climate record, ECMWF). Sea-day figures are approximate, blended from the ports on either side. Not a forecast.
DayPortHigh / lowRain daysWindTypical seas
Day 1Thu, Oct 1Yokohama Embark74 / 63°F24 / 17°C40%16 mph25 km/h–
Day 2Fri, Oct 2Toba76 / 66°F24 / 19°C50%12 mph20 km/h–
Day 3Sat, Oct 3Kobe/Osaka76 / 65°F24 / 18°C32%11 mph18 km/h–
Day 4Sun, Oct 4Kochi (Shikoku, Japan)78 / 64°F26 / 18°C33%9 mph14 km/h–
Day 5Mon, Oct 5Hiroshima76 / 60°F25 / 16°C25%9 mph14 km/h–
Day 6Tue, Oct 6Busan73 / 60°F23 / 16°C23%12 mph19 km/h–
Day 7Wed, Oct 7Nagasaki78 / 67°F26 / 19°C23%9 mph14 km/h–
Day 8Thu, Oct 8At sea76 / 65°F25 / 18°C32%9 mph15 km/h2 ft (0.5 m)Slight; rougher days up to 3 ft
Day 9Fri, Oct 9At sea76 / 65°F25 / 18°C32%9 mph15 km/h2 ft (0.5 m)Slight; rougher days up to 3 ft
Day 10Sat, Oct 10Yokohama Disembark74 / 63°F24 / 17°C40%16 mph25 km/h–

Seas are significant wave height, the average of the highest third of waves, on the Douglas sea state scale. What that means on board.

Ports on this cruise

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