Vientiane weather in December
December is one of the best months to visit Vientiane: highs of 27°C (80°F) and about 6 mm (0.2 in) of rain on average. Nights average 15°C (58°F) and cloud cover 32% (NASA POWER, 2001–2025 averages). It is the driest month of the year and the coolest. Compared with November, it is cooler and drier; January brings highs of 28°C (83°F) and 8 mm (0.3 in) of rain.
Is December a good time to visit Vientiane?
best month Weather score 93/100.
Yes. December is one of the best months for weather in Vientiane.
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Does it rain a lot in Vientiane in December?
No, it is usually dry: about 6 mm (0.2 in) falls in an average December. It is the driest month of the year.
How warm is Vientiane in December?
Days average 27°C (80°F) and nights 15°C (58°F).
Vientiane weather by month
| Month | High | Low | Rain | Cloud | Weather |
|---|---|---|---|---|---|
| January | 28°C (83°F) | 15°C (58°F) | 8 mm | 33% | best |
| February | 32°C (89°F) | 18°C (64°F) | 13 mm | 33% | best |
| March | 35°C (95°F) | 21°C (71°F) | 35 mm | 47% | fair |
| April | 37°C (98°F) | 24°C (76°F) | 61 mm | 58% | fair |
| May | 34°C (93°F) | 25°C (76°F) | 168 mm | 82% | least pleasant |
| June | 32°C (89°F) | 24°C (75°F) | 170 mm | 90% | least pleasant |
| July | 31°C (87°F) | 24°C (74°F) | 203 mm | 92% | least pleasant |
| August | 30°C (86°F) | 23°C (74°F) | 246 mm | 93% | least pleasant |
| September | 30°C (86°F) | 23°C (74°F) | 204 mm | 84% | least pleasant |
| October | 30°C (85°F) | 21°C (70°F) | 85 mm | 59% | fair |
| November | 29°C (83°F) | 18°C (64°F) | 16 mm | 40% | best |
| December | 27°C (80°F) | 15°C (58°F) | 6 mm | 32% | best |
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis). Page updated . How we rate months
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