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Vientiane in March sees extremely high daytime temperatures of 35°C (95°F) and nighttime lows of 22°C (72°F). Moderate rainfall is typical, with around 38 mm (1.5 in) for the month.
Our weather planner can help you find worldwide destinations with pleasant weather during this period. January, November and December typically offer the best weather for Vientiane.
Pick a month to see the average temperature, rainfall and sunshine in Vientiane - and find the best time to visit.
50-year average (1976-2025)
Based on our historical records, temperatures in Vientiane typically stay consistent throughout March, with daily highs averaging around 35°C (95°F). Nights are warm, with lows typically ranging from 20°C (68°F) to 23°C (73°F).
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Browse day-by-day weather records for Vientiane spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Based on 50 years of weather observations (1976-2026), these are the most extreme conditions recorded in Vientiane.
Find out more about the weather in Laos and which places have the best travel conditions in this month. See all of Laos in March →
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
Pack for serious heat in Vientiane in March. Prioritize clothing that breathes and doesn't cling or stick. Lightweight cotton, linen, and moisture-wicking fabrics are ideal. A wide hat provides welcome shade. Light rain is possible, so consider bringing a small umbrella or rain jacket. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full Vientiane climate overview or explore weather in Laos.
Where to go in March - average daytime high across popular destinations.
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