Laos climate

World Climates covers 2 places in Laos. By annual mean temperature, the warmest is Vientiane (26 °C79 °F) and the coolest is Savannakhet (26 °C79 °F). The wettest is Savannakhet with 1,227 mm48 in of precipitation per year, the driest Vientiane with 1,215 mm48 in.

The most common climate types (Köppen classification computed from these averages) are tropical savanna (dry winter) (Aw, 2 places).

The highest monthly average high is in Vientiane (37 °C98 °F in April); the lowest monthly average low is in Vientiane (15 °C59 °F in January).

Temperature and rainfall across Laos

Annual mean temperatures in Laos range from 26 °C79 °F to 26 °C79 °F. The typical place (the median of all 2) has a year average of 26 °C79 °F. Annual precipitation ranges from 1,215 mm48 in to 1,227 mm48 in. The median place receives about 1,221 mm48 in in an average year.

In 0 places of 2, the coldest month has an average low below 0 °C (32 °F). In 2 places, the warmest month has an average high above 30 °C (86 °F). No place here gets less than 250 mm (10 in) of precipitation a year. None gets more than 2,000 mm (79 in) a year.

Averaged over all 2 places, April is the warmest month, with a mean of 31 °C87 °F. December is the coldest, with 22 °C71 °F. The wettest month on average is August (252 mm9.9 in). The driest is January (6 mm0.2 in). Single places can differ a lot from this average, so check the page of each city.

The table below lists the places sorted by population. The largest ones covered here are Vientiane and Savannakhet. Each city page has a chart and a table for every month. It also shows the best time to visit and what to pack. The figures are 25-year averages for 2001–2025 from NASA POWER. They describe grid cells of roughly 50–70 km, not single weather stations.

Climate of each place in Laos

Vientiane has a tropical savanna (dry winter) climate (Köppen Aw). Its year average is 26 °C79 °F. The warmest month is April, with an average high of 37 °C98 °F. The coldest is December, with an average low of 15 °C59 °F. About 1,215 mm48 in of precipitation falls in a year. August is the wettest month and December the driest. By our comfort score, the best months to visit are November–January.

Savannakhet has a tropical savanna (dry winter) climate (Köppen Aw). Its year average is 26 °C79 °F. The warmest month is April, with an average high of 37 °C98 °F. The coldest is December, with an average low of 16 °C61 °F. About 1,227 mm48 in of precipitation falls in a year. August is the wettest month and January the driest. By our comfort score, the best months to visit are December and January.

Frequently asked questions

Which is the warmest place in Laos?

By annual mean temperature, the warmest place in Laos is Vientiane at 26 °C79 °F. The coolest is Savannakhet at 26 °C79 °F.

Where does it rain the most in Laos?

Savannakhet gets the most precipitation, 1,227 mm48 in in an average year. The driest place is Vientiane with 1,215 mm48 in.

How many places in Laos does this site cover?

World Climates has climate data for 2 places in Laos. Each one has a page with monthly averages for temperature, rainfall, humidity and daylight.