While the general agreement is that the dry, cool months of November to February offer the most comfortable climate, Laos is a dynamic destination where every season offers a unique reward. Whether you want to witness the magical Lao New Year, explore lush waterfalls without the crowds, or simply enjoy a Mekong River cruise, this guide breaks down exactly when to pack your bags.

The Best Overall Time: November to February

If you are looking for the “Goldilocks” of weathers, Not too hot nor too rainy. November through February is widely considered the best time to visit Laos. The weather would be clear blue skies with low humidity and pleasant temperatures averaging between 20°C to 25°C (68°F – 77°F). In the Northern regions like Luang Prabang and the mountain areas, the mornings and nights can actually get quite chilly, so preparing a light jacket is essential. Theres more to the reason why you should go now, is for the outdoor activities, Trekking in Van Vieng, Cycling around Don Det and exploring the ancient temples of Vientiane are so worth it during these months. The trade off would be that since this is the peak toursit season, popular spots will be busier and accommodation prices may be slightly higher.

The Hot Season: March to April

As the cool dry season ends, the heat begins to build rapidly. By April, temperatures can soar above 35°C (95°F), making this the hottest time of the year.

• The “Smoky” Season: One critical factor to consider is the agricultural “slash and burn” practice that occurs in late February and March. This can cause hazy skies in Northern Laos, obscuring mountain views and potentially irritating those with respiratory issues.
• The Big Draw (Lao New Year): Despite the heat, mid-April is one of the most exciting times to visit due to Pi Mai (Lao New Year). The entire country transforms into a massive water fight. It is a culturally rich, chaotic, and incredibly fun celebration that provides a welcome relief from the heat.

The Green Season: May to October

As the cool dry season winds down, the heat builds rapidly, with temperatures often soaring above 35°C (95°F) by April, making this the hottest time of the year. Travelers should be aware of the “Smoky” Season during late February and March, when agricultural “slash and burn” practices can cause hazy skies in Northern Laos that obscure mountain views and may irritate those with respiratory sensitivities. However, despite the intense heat, mid-April remains one of the most exciting times to visit because of Pi Mai (Lao New Year); this culturally rich event transforms the entire country into a massive, chaotic, and incredibly fun water fight, offering a festive and welcome relief from the soaring temperatures.

Laos Weather by Month: A Quick Snapshot