MyCruiseForecast

Royal Caribbean · 7 nights

Serenade of the Seas weather: 7-night cruise from San Diego, December 20, 2026

The Serenade of the Seas (Royal Caribbean) leaves San Diego on December 20, 2026 for a 7-night cruise, with stops in Cabo San Lucas, La Paz and Mazatlán. It returns to San Diego on December 27, 2026. Typical afternoon highs along the route run from 64°F to 81°F (18°C to 27°C), and 3 days are at sea, where seas are typically moderate (around 5 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 (2006–2025 climate record, ECMWF). Sea-day figures are approximate, blended from the ports on either side. Not a forecast.
DayPortHigh / lowRain daysWindTypical seas
Day 1Sun, Dec 20San Diego Embark64 / 48°F18 / 9°C21%11 mph18 km/h–
Day 2Mon, Dec 21At sea72 / 55°F22 / 13°C13%8 mph13 km/h5 ft (1.5 m)Moderate; rougher days up to 8 ft
Day 3Tue, Dec 22Cabo San Lucas80 / 62°F27 / 17°C4%11 mph17 km/h–
Day 4Wed, Dec 23La Paz78 / 58°F25 / 14°C2%16 mph25 km/h–
Day 5Thu, Dec 24Mazatlán81 / 58°F27 / 15°C2%10 mph16 km/h–
Day 6Fri, Dec 25At sea73 / 53°F23 / 12°C12%8 mph13 km/h4 ft (1.3 m)Moderate; rougher days up to 7 ft
Day 7Sat, Dec 26At sea73 / 53°F23 / 12°C12%8 mph13 km/h4 ft (1.3 m)Moderate; rougher days up to 7 ft
Day 8Sun, Dec 27San Diego Disembark64 / 48°F18 / 9°C21%11 mph18 km/h–

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

Ports on this cruise

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