Princess Cruises · 11 nights
Ruby Princess weather: 11-night cruise from San Francisco, December 15, 2026
The Ruby Princess (Princess Cruises) leaves San Francisco on December 15, 2026 for a 11-night cruise, with stops in Manzanillo, Puerto Vallarta, Mazatlán and Cabo San Lucas. It returns to San Francisco on December 26, 2026. Typical afternoon highs along the route run from 56°F to 87°F (14°C to 31°C), and 6 days are at sea, where seas are typically moderate (around 6 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
| Day | Port | High / low | Rain days | Wind | Typical seas |
|---|---|---|---|---|---|
| Day 1Tue, Dec 15 | San Francisco Embark | 59 / 49°F15 / 10°C | 35% | 14 mph23 km/h | – |
| Day 2Wed, Dec 16 | At sea | 72 / 58°F22 / 14°C | 16% | 7 mph12 km/h | 6 ft (1.7 m)Moderate; rougher days up to 8 ft |
| Day 3Thu, Dec 17 | At sea | 72 / 58°F22 / 14°C | 16% | 7 mph12 km/h | 6 ft (1.7 m)Moderate; rougher days up to 8 ft |
| Day 4Fri, Dec 18 | At sea | 72 / 58°F22 / 14°C | 16% | 7 mph12 km/h | 6 ft (1.7 m)Moderate; rougher days up to 8 ft |
| Day 5Sat, Dec 19 | Manzanillo | 87 / 70°F31 / 21°C | 2% | 7 mph11 km/h | – |
| Day 6Sun, Dec 20 | Puerto Vallarta | 82 / 64°F28 / 18°C | 8% | 8 mph13 km/h | – |
| Day 7Mon, Dec 21 | Mazatlán | 81 / 58°F27 / 15°C | 2% | 10 mph16 km/h | – |
| Day 8Tue, Dec 22 | Cabo San Lucas | 80 / 62°F27 / 17°C | 4% | 11 mph17 km/h | – |
| Day 9Wed, Dec 23 | At sea | 68 / 54°F20 / 12°C | 16% | 9 mph14 km/h | 6 ft (1.8 m)Moderate; rougher days up to 9 ft |
| Day 10Thu, Dec 24 | At sea | 68 / 54°F20 / 12°C | 16% | 9 mph14 km/h | 6 ft (1.8 m)Moderate; rougher days up to 9 ft |
| Day 11Fri, Dec 25 | At sea | 68 / 54°F20 / 12°C | 16% | 9 mph14 km/h | 6 ft (1.8 m)Moderate; rougher days up to 9 ft |
| Day 12Sat, Dec 26 | San Francisco Disembark | 56 / 46°F14 / 8°C | 29% | 12 mph20 km/h | – |
Seas are significant wave height, the average of the highest third of waves. What that means on board.
Ports on this cruise
- ManzanilloWeather by month
- Puerto VallartaWeather by month
- MazatlánWeather by month
- Cabo San LucasWeather by month
- San FranciscoWeather by month
More Ruby Princess sailings
- December 26, 2026: 16 nights from San Francisco
- January 11, 2027: 16 nights from San Francisco
- January 27, 2027: 16 nights from San Francisco