Like Southern Vietnam, Laos is subject to tropical and subtropical climate with two main seasons:
• The dry season from October to April: Average temperature is 21°C in November and February, and 25 ° C in October and March. From mid-March to late April, however, temperatures may climb to 40 ° C in the plains.
• The rainy season lasts from May to September. Warm and moist monsoon, which flows first south of the country extensively then rising to the north. It may be difficult to travel in the country during these months. The temperature approaches 30 ° C in Vientiane and rainfall reaches close to 300 mm. To visit Laos in this season, the north is more appropriate.
The best time to visit Laos is the months of October, November, February, and March, when the temperature is adequate (averagely 25°C). The sky is blue and, importantly: this is the period of most Lao festivals!