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Loading Travel Forecast…Loading Travel Forecast…Loading Travel Forecast…Departing Singapore on December 9, 2026, the Princess Cruises ship Diamond Princess runs this 24-night Malaysia, Thailand & Vietnam with Halong Bay sailing. It's a classic Asia cruise. Travelers sailing in December can generally expect cooler, off-season conditions. Ports of call include Singapore, Ho Chi Minh City, Vietnam, Nha Trang, Vietnam, with 12 more along the way. Scroll the daily outlook below to pack smart for every port of call.
Singapore is a scheduled port of call on day 1 of the 24-night Malaysia, Thailand & Vietnam with Halong Bay cruise on Diamond Princess. Expected weather: overcast with highs near 81°F.
Day 2 of 25 is a day at sea aboard Diamond Princess, cruising between ports on the Malaysia, Thailand & Vietnam with Halong Bay itinerary.
Ho Chi Minh City, Vietnam is a scheduled port of call on day 3 of the 24-night Malaysia, Thailand & Vietnam with Halong Bay cruise on Diamond Princess. Expected weather: partially cloudy with highs near 86°F.
Nha Trang, Vietnam is a scheduled port of call on day 4 of the 24-night Malaysia, Thailand & Vietnam with Halong Bay cruise on Diamond Princess. Expected weather: partially cloudy with highs near 78°F.
Day 5 of 25 is a day at sea aboard Diamond Princess, cruising between ports on the Malaysia, Thailand & Vietnam with Halong Bay itinerary.
Halong Bay, Vietnam is a scheduled port of call on day 6 of the 24-night Malaysia, Thailand & Vietnam with Halong Bay cruise on Diamond Princess. Expected weather: partially cloudy with highs near 69°F.
Halong Bay, Vietnam is a scheduled port of call on day 7 of the 24-night Malaysia, Thailand & Vietnam with Halong Bay cruise on Diamond Princess. Expected weather: partially cloudy with highs near 68°F.
Da Nang, Vietnam is a scheduled port of call on day 8 of the 24-night Malaysia, Thailand & Vietnam with Halong Bay cruise on Diamond Princess. Expected weather: partially cloudy with highs near 75°F.
Day 9 of 25 is a day at sea aboard Diamond Princess, cruising between ports on the Malaysia, Thailand & Vietnam with Halong Bay itinerary.
Day 10 of 25 is a day at sea aboard Diamond Princess, cruising between ports on the Malaysia, Thailand & Vietnam with Halong Bay itinerary.
Singapore is a scheduled port of call on day 11 of the 24-night Malaysia, Thailand & Vietnam with Halong Bay cruise on Diamond Princess. Expected weather: overcast with highs near 81°F.
Day 12 of 25 is a day at sea aboard Diamond Princess, cruising between ports on the Malaysia, Thailand & Vietnam with Halong Bay itinerary.
Phuket, Thailand is a scheduled port of call on day 13 of the 24-night Malaysia, Thailand & Vietnam with Halong Bay cruise on Diamond Princess. Expected weather: partially cloudy with highs near 83°F.
Langkawi, Malaysia is a scheduled port of call on day 14 of the 24-night Malaysia, Thailand & Vietnam with Halong Bay cruise on Diamond Princess. Expected weather: partially cloudy with highs near 83°F.
Penang, Malaysia is a scheduled port of call on day 15 of the 24-night Malaysia, Thailand & Vietnam with Halong Bay cruise on Diamond Princess. Expected weather: partially cloudy with highs near 88°F.
Klang, Malaysia is a scheduled port of call on day 16 of the 24-night Malaysia, Thailand & Vietnam with Halong Bay cruise on Diamond Princess.
Day 17 of 25 is a day at sea aboard Diamond Princess, cruising between ports on the Malaysia, Thailand & Vietnam with Halong Bay itinerary.
Day 18 of 25 is a day at sea aboard Diamond Princess, cruising between ports on the Malaysia, Thailand & Vietnam with Halong Bay itinerary.
Nha Trang, Vietnam is a scheduled port of call on day 19 of the 24-night Malaysia, Thailand & Vietnam with Halong Bay cruise on Diamond Princess.
Ho Chi Minh City, Vietnam is a scheduled port of call on day 20 of the 24-night Malaysia, Thailand & Vietnam with Halong Bay cruise on Diamond Princess.
Day 21 of 25 is a day at sea aboard Diamond Princess, cruising between ports on the Malaysia, Thailand & Vietnam with Halong Bay itinerary.
Laem Chabang, Thailand is a scheduled port of call on day 22 of the 24-night Malaysia, Thailand & Vietnam with Halong Bay cruise on Diamond Princess.
Day 23 of 25 is a day at sea aboard Diamond Princess, cruising between ports on the Malaysia, Thailand & Vietnam with Halong Bay itinerary.
Day 24 of 25 is a day at sea aboard Diamond Princess, cruising between ports on the Malaysia, Thailand & Vietnam with Halong Bay itinerary.
Singapore is a scheduled port of call on day 25 of the 24-night Malaysia, Thailand & Vietnam with Halong Bay cruise on Diamond Princess.
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