Diamond Princess — 9-Night Japan Explorer Cruise Weather

The Diamond Princess sails a 9-night Japan Explorer itinerary with Princess Cruises, departing Yokohama, Japan on September 15, 2027. It's a classic Asia cruise. Travelers sailing in September can generally expect cooler, off-season conditions. Ports of call include Yokohama, Japan, Toba, Japan, Kobe/Osaka, Japan, with 5 more along the way. Use the day-by-day forecast below to plan what to pack for each stop.

1. Day 1 — Wednesday, Sep 15, 2027 — Yokohama, Japan

   Yokohama, Japan is a scheduled port of call on day 1 of the 9-night Japan Explorer cruise on Diamond Princess.

2. Day 2 — Thursday, Sep 16, 2027 — Toba, Japan

   Toba, Japan is a scheduled port of call on day 2 of the 9-night Japan Explorer cruise on Diamond Princess.

3. Day 3 — Friday, Sep 17, 2027 — Kobe/Osaka, Japan

   Kobe/Osaka, Japan is a scheduled port of call on day 3 of the 9-night Japan Explorer cruise on Diamond Princess.

4. Day 4 — Saturday, Sep 18, 2027 — Kochi, Japan

   Kochi, Japan is a scheduled port of call on day 4 of the 9-night Japan Explorer cruise on Diamond Princess.

5. Day 5 — Monday, Sep 20, 2027 — Busan, South Korea

   Busan, South Korea is a scheduled port of call on day 5 of the 9-night Japan Explorer cruise on Diamond Princess.

6. Day 6 — Tuesday, Sep 21, 2027 — Nagasaki, Japan

   Nagasaki, Japan is a scheduled port of call on day 6 of the 9-night Japan Explorer cruise on Diamond Princess.

7. Day 7 — Thursday, Sep 23, 2027 — Shimizu, Japan

   Shimizu, Japan is a scheduled port of call on day 7 of the 9-night Japan Explorer cruise on Diamond Princess.

8. Day 8 — Friday, Sep 24, 2027 — Yokohama, Japan

   Yokohama, Japan is a scheduled port of call on day 8 of the 9-night Japan Explorer cruise on Diamond Princess.