| Climate |
Laos is a hot and humid tropical country dominated in the lowlands by two distinct seasons. The rainy season extends from the beginning of May to the end of September, and the dry season is from October through April. The yearly average temperature is about 28°C, rising to a maximum of 38°C or 40°C during April and May, the hottest part of the year.
In Vientiane a minimum temperature of 19°C is to be expected during January. In mountainous areas, however, temperature drops to as low as 14°C -15°C during the winter months, and O°C is not uncommon in the mountains during winter.
Southern Laos has the most rain, where the Annamite Mountains receive over 3000 mm annually; Vientiane rainfall is about 1500-2000mm, and in the north only 1000-1500 mm. |