Laos weather & when to go: March

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Mekong River Levels

In recent years water levels on certain stretches of the Mekong River have reached record lows in February & March. This is not simply due to lower rainfall and global warming, but because of eight new Chinese ‘super-dams’ stemming the water flow to ensure a plentiful water supply to regions of China outside the Mekong River’s natural basin.

The result of this damming is that the river's fish stocks are declining dramatically in the lower Mekong countries, with other wildlife expected to become quickly over-hunted as a result. At this time a typically disappointing amount of international pressure is being applied to China to exercise more stringent control on their damming procedure to ensure the countries of the lower Mekong receive acceptable levels of water.

March Overview

The chances of rain remain slim throughout Laos during March, but things are starting to heat up across the country as it enters the penultimate dry-season month.

The mercury starts to rise with average temperatures of 29°C in Vientiane and Luang Prabang, and a warmer 32°C further to the south in Pakse and the 4000 Islands region. The northern regions of Luang Namtha and Phongsali are still enjoying cooler temperatures and favourable trekking conditions. Despite the increasing temperatures, humidity levels hover around 60% - the lowest of the year.  

March weather top tip

If you're looking for a beach bolt-on then consider the southern beaches of Vietnam which are enjoying dry, sunny days during March.   

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Key Festivals & Religious Ceremonies

Lao People’s Revolutionary Party Day

Lao People’s Revolutionary Party Day

22nd March

See Laos’s weather in other months