Holland America Line · 14 nights
Westerdam weather: 14-night cruise from Singapore, December 6, 2026
The Westerdam (Holland America Line) leaves Singapore on December 6, 2026 for a 14-night cruise, with stops in Ko Samui, Laem Chabang (Bangkok), Sihanoukville, Ho Chi Minh City, Da Nang, Ha Long Bay (Quang Ninh, Vietnam) and 1 more. It ends in Hong Kong on December 20, 2026. Typical afternoon highs along the route run from 65°F to 88°F (18°C to 31°C), and 7 days are at sea, where seas are typically slight (around 4 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 1Sun, Dec 6 | Singapore Embark | 85 / 76°F29 / 25°C | 85% | 11 mph17 km/h | – |
| Day 2Mon, Dec 7 | At sea | 84 / 76°F29 / 25°C | 80% | 8 mph12 km/h | 1 ft (0.3 m)Smooth; rougher days up to 2 ft |
| Day 3Tue, Dec 8 | At sea | 84 / 76°F29 / 25°C | 80% | 8 mph12 km/h | 1 ft (0.3 m)Smooth; rougher days up to 2 ft |
| Day 4Wed, Dec 9 | Ko Samui | 82 / 76°F28 / 24°C | 75% | 10 mph16 km/h | – |
| Day 5Thu, Dec 10 | At sea | 85 / 76°F29 / 24°C | 44% | 8 mph12 km/h | 1 ft (0.4 m)Smooth; rougher days up to 2 ft |
| Day 6Fri, Dec 11 | Laem Chabang (Bangkok) | 87 / 76°F31 / 24°C | 13% | 11 mph17 km/h | – |
| Day 7Sat, Dec 12 | At sea | 87 / 76°F31 / 24°C | 32% | 7 mph12 km/h | 1 ft (0.3 m)Smooth; rougher days up to 2 ft |
| Day 8Sun, Dec 13 | Sihanoukville | 87 / 76°F31 / 24°C | 50% | 9 mph14 km/h | – |
| Day 9Mon, Dec 14 | Ho Chi Minh City | 88 / 73°F31 / 23°C | 35% | 7 mph12 km/h | – |
| Day 10Tue, Dec 15 | At sea | 82 / 72°F28 / 22°C | 57% | 7 mph12 km/h | 4 ft (1.1 m)Slight; rougher days up to 5 ft |
| Day 11Wed, Dec 16 | Da Nang | 74 / 69°F23 / 21°C | 86% | 14 mph22 km/h | – |
| Day 12Thu, Dec 17 | At sea | 73 / 63°F23 / 17°C | 46% | 9 mph14 km/h | 4 ft (1.1 m)Slight; rougher days up to 5 ft |
| Day 13Fri, Dec 18 | Ha Long Bay (Quang Ninh, Vietnam) | 71 / 57°F22 / 14°C | 6% | 10 mph16 km/h | – |
| Day 14Sat, Dec 19 | At sea | 68 / 55°F20 / 13°C | 10% | 8 mph13 km/h | 3 ft (1.0 m)Slight; rougher days up to 4 ft |
| Day 15Sun, Dec 20 | Hong Kong Disembark | 65 / 52°F18 / 11°C | 14% | 12 mph19 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
- Ko SamuiWeather by month
- Laem Chabang (Bangkok)Weather by month
- SihanoukvilleWeather by month
- Ho Chi Minh CityWeather by month
- Da NangWeather by month
- Ha Long Bay (Quang Ninh, Vietnam)Weather by month
- Hong KongWeather by month
- SingaporeWeather by month
More Westerdam sailings
- December 20, 2026: 14 nights from Hong Kong