6-Night Cruise on Spectrum Of The SeasSeoul, Jeju & Busan Cruise - Weather

Join Royal Caribbean Cruises's Spectrum Of The Seas for a 6-night voyage on the Seoul, Jeju & Busan Cruise route, setting out from Shanghai, China on October 1, 2026. It's a classic Asia cruise. Travelers sailing in October can generally expect cooler, off-season conditions. Ports of call include Shanghai, China, Incheon, South Korea, Seogwipo-si, South Korea, with 2 more along the way. The forecasts below break the weather down port by port.

1. Day 1 — Thursday, Oct 1, 2026 — Shanghai, China

   Shanghai, China is a scheduled port of call on day 1 of the 6-night Seoul, Jeju & Busan Cruise cruise on Spectrum Of The Seas. Expected weather: partially cloudy with highs near 77°F.

2. Day 2 — Saturday, Oct 3, 2026 — Incheon, South Korea

   Incheon, South Korea is a scheduled port of call on day 2 of the 6-night Seoul, Jeju & Busan Cruise cruise on Spectrum Of The Seas. Expected weather: partially cloudy with highs near 74°F.

3. Day 3 — Sunday, Oct 4, 2026 — Seogwipo-si, South Korea

   Seogwipo-si, South Korea is a scheduled port of call on day 3 of the 6-night Seoul, Jeju & Busan Cruise cruise on Spectrum Of The Seas. Expected weather: partially cloudy with highs near 78°F.

4. Day 4 — Monday, Oct 5, 2026 — Busan, South Korea

   Busan, South Korea is a scheduled port of call on day 4 of the 6-night Seoul, Jeju & Busan Cruise cruise on Spectrum Of The Seas. Expected weather: partially cloudy with highs near 70°F.

5. Day 5 — Wednesday, Oct 7, 2026 — Shanghai, China

   Shanghai, China is a scheduled port of call on day 5 of the 6-night Seoul, Jeju & Busan Cruise cruise on Spectrum Of The Seas. Expected weather: partially cloudy with highs near 75°F.