Our verdict
The best time to visit Vientiane is October-April
In the height of summer, temperatures in Vientiane can reach a maximum of 33℃ (91℉). In the winter, temperatures can get down to 18℃ (65℉) around August.
If you’re a sun-chaser and want to visit Vientiane when the days are longest, you should visit in October. You don’t want to get wet on your holiday, do you? Well if you’re trying to avoid the rain, then steer clear of Vientiane in January. Head over there in August instead if you want to increase your chances of not being rained on.
To learn everything you need to know (and none of the stuff you don’t) about when to visit Vientiane, keep reading below. Plus, you’ll find tools to help you get the best deals on travel and hotels too!
Quick links: Fast facts / Seasons / Average temperatures / Monthly climate / FAQs / Map
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Vientiane seasons
Before you continue, it’s important to know when the seasons are in Vientiane as they might be different to yours depending on where in the world you’re travelling from. Vientiane is in the Northern Hemisphere, so the seasons fall during these months:
| Season | Months |
|---|---|
| Summer | June to August |
| Autumn/fall | September to November |
| Winter | December to February |
| Spring | March to May |
Average temperatures in Vientiane
If the temperature is a big factor for you to help you decide when to visit, the chart below shows the average minimum and maximum temperatures in Vientiane for each month side-by-side so you can easily see the difference in weather throughout the year. To see the temperatures in both Celsius (°C) and Fahrenheit (°F), hover or tap the shaded boxes on the graph.
Vientiane climate by month
If you already have a rough idea about which months you might want to travel, the section below shows a detailed breakdown of the climate in Vientiane for each month so you can see if it all suits your wants and needs. Scroll down, or use the quick menu below to jump to your preferred month.
Jump to:
Vientiane in January
- Average temperature: 26℃ (79℉)
- Average high temperature: 29℃ (84℉)
- Average low temperature: 24℃ (75℉)
- Average humidity: 81%
- Average sunny days: 0 days
- Average rainfall: 235mm (9") over 31 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Vientiane in January, make sure you pack t-shirts and light clothing.
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Vientiane in February
- Average temperature: 26℃ (79℉)
- Average high temperature: 29℃ (84℉)
- Average low temperature: 24℃ (75℉)
- Average humidity: 81%
- Average sunny days: 0 days
- Average rainfall: 213mm (8") over 28 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Vientiane in February, make sure you pack t-shirts and light clothing.
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Vientiane in March
- Average temperature: 26℃ (79℉)
- Average high temperature: 29℃ (84℉)
- Average low temperature: 23℃ (74℉)
- Average humidity: 81%
- Average sunny days: 1 days
- Average rainfall: 197mm (8") over 30 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Vientiane in March, make sure you pack t-shirts and light clothing.
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Vientiane in April
- Average temperature: 26℃ (80℉)
- Average high temperature: 29℃ (84℉)
- Average low temperature: 24℃ (74℉)
- Average humidity: 82%
- Average sunny days: 3 days
- Average rainfall: 114mm (4") over 26 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Vientiane in April, make sure you pack t-shirts and light clothing.
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Vientiane in May
- Average temperature: 26℃ (79℉)
- Average high temperature: 29℃ (84℉)
- Average low temperature: 24℃ (74℉)
- Average humidity: 82%
- Average sunny days: 8 days
- Average rainfall: 64mm (3") over 20 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Vientiane in May, make sure you pack t-shirts and light clothing.
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Vientiane in June
- Average temperature: 25℃ (77℉)
- Average high temperature: 28℃ (82℉)
- Average low temperature: 23℃ (73℉)
- Average humidity: 82%
- Average sunny days: 14 days
- Average rainfall: 20mm (1") over 13 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Vientiane in June, make sure you pack t-shirts and light clothing.
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Vientiane in July
- Average temperature: 25℃ (76℉)
- Average high temperature: 27℃ (81℉)
- Average low temperature: 22℃ (72℉)
- Average humidity: 81%
- Average sunny days: 16 days
- Average rainfall: 15mm (1") over 12 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Vientiane in July, make sure you pack t-shirts and light clothing.
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Vientiane in August
- Average temperature: 24℃ (76℉)
- Average high temperature: 27℃ (81℉)
- Average low temperature: 22℃ (71℉)
- Average humidity: 80%
- Average sunny days: 18 days
- Average rainfall: 7mm (0") over 9 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Vientiane in August, make sure you pack t-shirts and light clothing.
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Vientiane in September
- Average temperature: 25℃ (77℉)
- Average high temperature: 28℃ (83℉)
- Average low temperature: 22℃ (72℉)
- Average humidity: 79%
- Average sunny days: 14 days
- Average rainfall: 17mm (1") over 10 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Vientiane in September, make sure you pack t-shirts and light clothing.
Vientiane in October
- Average temperature: 26℃ (80℉)
- Average high temperature: 30℃ (85℉)
- Average low temperature: 23℃ (74℉)
- Average humidity: 77%
- Average sunny days: 10 days
- Average rainfall: 33mm (1") over 16 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Vientiane in October, make sure you pack t-shirts and light clothing.
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Vientiane in November
- Average temperature: 27℃ (80℉)
- Average high temperature: 30℃ (85℉)
- Average low temperature: 24℃ (75℉)
- Average humidity: 79%
- Average sunny days: 2 days
- Average rainfall: 105mm (4") over 26 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Vientiane in November, make sure you pack t-shirts and light clothing.
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Vientiane in December
- Average temperature: 27℃ (80℉)
- Average high temperature: 29℃ (85℉)
- Average low temperature: 24℃ (75℉)
- Average humidity: 80%
- Average sunny days: 0 days
- Average rainfall: 172mm (7") over 30 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Vientiane in December, make sure you pack t-shirts and light clothing.
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