
Plan Your Cruise With Free Weather Forecasts
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Loading Travel Forecast…Join Princess Cruises's Sapphire Princess for a 42-night voyage on the Japan & Southeast Asia Grand Adventure route, setting out from Singapore on January 9, 2027. It's a classic Asia cruise. Travelers sailing in January can generally expect cooler, off-season conditions. Ports of call include Singapore, Nha Trang, Vietnam, Halong Bay, Vietnam, with 22 more along the way. The forecasts below break the weather down port by port.
Singapore is a scheduled port of call on day 1 of the 42-night Japan & Southeast Asia Grand Adventure cruise on Sapphire Princess. Expected weather: partially cloudy with highs near 81°F.
Day 2 of 43 is a day at sea aboard Sapphire Princess, cruising between ports on the Japan & Southeast Asia Grand Adventure itinerary.
Nha Trang, Vietnam is a scheduled port of call on day 3 of the 42-night Japan & Southeast Asia Grand Adventure cruise on Sapphire Princess. Expected weather: partially cloudy with highs near 76°F.
Day 4 of 43 is a day at sea aboard Sapphire Princess, cruising between ports on the Japan & Southeast Asia Grand Adventure itinerary.
Halong Bay, Vietnam is a scheduled port of call on day 5 of the 42-night Japan & Southeast Asia Grand Adventure cruise on Sapphire Princess. Expected weather: partially cloudy with highs near 65°F.
Halong Bay, Vietnam is a scheduled port of call on day 6 of the 42-night Japan & Southeast Asia Grand Adventure cruise on Sapphire Princess. Expected weather: partially cloudy with highs near 65°F.
Day 7 of 43 is a day at sea aboard Sapphire Princess, cruising between ports on the Japan & Southeast Asia Grand Adventure itinerary.
Hong Kong, China is a scheduled port of call on day 8 of the 42-night Japan & Southeast Asia Grand Adventure cruise on Sapphire Princess. Expected weather: partially cloudy with highs near 65°F.
Day 9 of 43 is a day at sea aboard Sapphire Princess, cruising between ports on the Japan & Southeast Asia Grand Adventure itinerary.
Keelung, Taiwan is a scheduled port of call on day 10 of the 42-night Japan & Southeast Asia Grand Adventure cruise on Sapphire Princess. Expected weather: partially cloudy with highs near 63°F.
Miyakojima, Japan is a scheduled port of call on day 11 of the 42-night Japan & Southeast Asia Grand Adventure cruise on Sapphire Princess. Expected weather: partially cloudy with highs near 69°F.
Day 12 of 43 is a day at sea aboard Sapphire Princess, cruising between ports on the Japan & Southeast Asia Grand Adventure itinerary.
Nagasaki, Japan is a scheduled port of call on day 13 of the 42-night Japan & Southeast Asia Grand Adventure cruise on Sapphire Princess. Expected weather: partially cloudy with highs near 51°F.
Day 14 of 43 is a day at sea aboard Sapphire Princess, cruising between ports on the Japan & Southeast Asia Grand Adventure itinerary.
Tokyo, Japan is a scheduled port of call on day 15 of the 42-night Japan & Southeast Asia Grand Adventure cruise on Sapphire Princess. Expected weather: partially cloudy with highs near 47°F.
Day 16 of 43 is a day at sea aboard Sapphire Princess, cruising between ports on the Japan & Southeast Asia Grand Adventure itinerary.
Kagoshima, Japan is a scheduled port of call on day 17 of the 42-night Japan & Southeast Asia Grand Adventure cruise on Sapphire Princess.
Day 18 of 43 is a day at sea aboard Sapphire Princess, cruising between ports on the Japan & Southeast Asia Grand Adventure itinerary.
Naha, Japan is a scheduled port of call on day 19 of the 42-night Japan & Southeast Asia Grand Adventure cruise on Sapphire Princess.
Day 20 of 43 is a day at sea aboard Sapphire Princess, cruising between ports on the Japan & Southeast Asia Grand Adventure itinerary.
Kaohsiung, Taiwan is a scheduled port of call on day 21 of the 42-night Japan & Southeast Asia Grand Adventure cruise on Sapphire Princess.
Day 22 of 43 is a day at sea aboard Sapphire Princess, cruising between ports on the Japan & Southeast Asia Grand Adventure itinerary.
Hong Kong, China is a scheduled port of call on day 23 of the 42-night Japan & Southeast Asia Grand Adventure cruise on Sapphire Princess.
Day 24 of 43 is a day at sea aboard Sapphire Princess, cruising between ports on the Japan & Southeast Asia Grand Adventure itinerary.
Da Nang, Vietnam is a scheduled port of call on day 25 of the 42-night Japan & Southeast Asia Grand Adventure cruise on Sapphire Princess.
Day 26 of 43 is a day at sea aboard Sapphire Princess, cruising between ports on the Japan & Southeast Asia Grand Adventure itinerary.
Ho Chi Minh City, Vietnam is a scheduled port of call on day 27 of the 42-night Japan & Southeast Asia Grand Adventure cruise on Sapphire Princess.
Day 28 of 43 is a day at sea aboard Sapphire Princess, cruising between ports on the Japan & Southeast Asia Grand Adventure itinerary.
Singapore is a scheduled port of call on day 29 of the 42-night Japan & Southeast Asia Grand Adventure cruise on Sapphire Princess.
Day 30 of 43 is a day at sea aboard Sapphire Princess, cruising between ports on the Japan & Southeast Asia Grand Adventure itinerary.
Ko Samui, Thailand is a scheduled port of call on day 31 of the 42-night Japan & Southeast Asia Grand Adventure cruise on Sapphire Princess.
Laem Chabang, Thailand is a scheduled port of call on day 32 of the 42-night Japan & Southeast Asia Grand Adventure cruise on Sapphire Princess.
Day 33 of 43 is a day at sea aboard Sapphire Princess, cruising between ports on the Japan & Southeast Asia Grand Adventure itinerary.
Sihanoukville, Cambodia is a scheduled port of call on day 34 of the 42-night Japan & Southeast Asia Grand Adventure cruise on Sapphire Princess.
Day 35 of 43 is a day at sea aboard Sapphire Princess, cruising between ports on the Japan & Southeast Asia Grand Adventure itinerary.
Ho Chi Minh City, Vietnam is a scheduled port of call on day 36 of the 42-night Japan & Southeast Asia Grand Adventure cruise on Sapphire Princess.
Day 37 of 43 is a day at sea aboard Sapphire Princess, cruising between ports on the Japan & Southeast Asia Grand Adventure itinerary.
Day 38 of 43 is a day at sea aboard Sapphire Princess, cruising between ports on the Japan & Southeast Asia Grand Adventure itinerary.
Langkawi, Malaysia is a scheduled port of call on day 39 of the 42-night Japan & Southeast Asia Grand Adventure cruise on Sapphire Princess.
Phuket, Thailand is a scheduled port of call on day 40 of the 42-night Japan & Southeast Asia Grand Adventure cruise on Sapphire Princess.
Penang, Malaysia is a scheduled port of call on day 41 of the 42-night Japan & Southeast Asia Grand Adventure cruise on Sapphire Princess.
Klang, Malaysia is a scheduled port of call on day 42 of the 42-night Japan & Southeast Asia Grand Adventure cruise on Sapphire Princess.
Singapore is a scheduled port of call on day 43 of the 42-night Japan & Southeast Asia Grand Adventure cruise on Sapphire Princess.
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