9-Night Cruise on Diamond PrincessOkinawa & Taiwan - Weather

The Diamond Princess sails a 9-night Okinawa & Taiwan itinerary with Princess Cruises, departing Yokohama, Japan on September 22, 2026. It's a classic Asia cruise. Travelers sailing in September can generally expect cooler, off-season conditions. Ports of call include Yokohama, Japan, Keelung, Taiwan, Ishigaki, Japan, with 2 more along the way. Use the day-by-day forecast below to plan what to pack for each stop.

1. Day 1 — Tuesday, Sep 22, 2026 — Yokohama, Japan

   Yokohama, Japan is a scheduled port of call on day 1 of the 9-night Okinawa & Taiwan cruise on Diamond Princess. Expected weather: partially cloudy with highs near 78°F.

2. Day 2 — Friday, Sep 25, 2026 — Keelung, Taiwan

   Keelung, Taiwan is a scheduled port of call on day 2 of the 9-night Okinawa & Taiwan cruise on Diamond Princess. Expected weather: partially cloudy with highs near 80°F.

3. Day 3 — Sunday, Sep 27, 2026 — Ishigaki, Japan

   Ishigaki, Japan is a scheduled port of call on day 3 of the 9-night Okinawa & Taiwan cruise on Diamond Princess. Expected weather: partially cloudy with highs near 83°F.

4. Day 4 — Monday, Sep 28, 2026 — Naha, Japan

   Naha, Japan is a scheduled port of call on day 4 of the 9-night Okinawa & Taiwan cruise on Diamond Princess. Expected weather: partially cloudy with highs near 82°F.

5. Day 5 — Thursday, Oct 1, 2026 — Yokohama, Japan

   Yokohama, Japan is a scheduled port of call on day 5 of the 9-night Okinawa & Taiwan cruise on Diamond Princess. Expected weather: partially cloudy with highs near 75°F.