Hạ Long Bay Vịnh Hạ Long
Vietnam UNESCO World Heritage Site
Hạ Long Bay is a bay in Vietnam covering an area of 1,500 square kilometers. It is a UNESCO World Heritage Site and is one of the most looked-up sights in the country.
Planning a visit
The bay has distinct seasons. January, February, and December are the driest months, with average temperatures between 17 °C and 19 °C and rain occurring on 7 to 10 days. Rainfall increases significantly from May through September, peaking in August with 413 mm of rain on about 28 days. Temperatures are warmest from June to August, averaging 28 °C to 29 °C.
Hạ Long Bay is located 142 kilometers from Hanoi. The nearest airport is 33 kilometers away, while another airport is located 50 kilometers away. There are no other specific details on transport or access.
Weather by month
The warmest month is July, averaging 29 °C. The wettest is August, with about 413 mm of rain.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average temperature, °C | 17 | 18 | 20 | 23 | 26 | 28 | 29 | 28 | 27 | 25 | 22 | 19 |
| Rainfall, mm | 31 | 30 | 56 | 87 | 194 | 287 | 352 | 413 | 309 | 155 | 42 | 23 |
| Rainy days | 10 | 8 | 14 | 15 | 24 | 29 | 28 | 29 | 23 | 14 | 11 | 7 |
Temperatures and rainfall: 1981–2010 averages for this spot (4 km grid), from CHELSA. Rainy days: 2015–2024, NASA POWER.
