MyCruiseForecast

Royal Caribbean · 4 nights

Spectrum of the Seas weather: 4-night cruise from Shanghai, October 20, 2026

The Spectrum of the Seas (Royal Caribbean) leaves Shanghai on October 20, 2026 for a 4-night cruise, with stops in Naha. It returns to Shanghai on October 24, 2026. Typical afternoon highs along the route run from 71°F to 81°F (22°C to 27°C), and 2 days are at sea, where seas are typically slight (around 3 ft).

Open the interactive forecast for this sailing

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 1Tue, Oct 20Shanghai Embark71 / 58°F22 / 14°C19%11 mph18 km/h–
Day 2Wed, Oct 21At sea76 / 66°F25 / 19°C30%10 mph16 km/h3 ft (0.9 m)Slight; rougher days up to 5 ft
Day 3Thu, Oct 22Naha81 / 74°F27 / 23°C41%15 mph24 km/h–
Day 4Fri, Oct 23At sea76 / 66°F25 / 19°C30%10 mph16 km/h3 ft (0.9 m)Slight; rougher days up to 5 ft
Day 5Sat, Oct 24Shanghai Disembark71 / 58°F22 / 14°C19%11 mph18 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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