Climate averages 1991–2020

Vientiane weather
in February.

A hot, fairly dry month: the 6th warmest and the 3rd driest of the year.

Long-term climate patterns, not a forecast for a particular trip.

Average high 29.8°C Daytime mean, February
Average low 18.9°C Night-time mean, February
Rainfall 15 mm 2 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Vientiane · average highYear overview

February is a hot month in Vientiane: daytime highs average 29.8°C and nights cool to about 18.9°C. By daytime temperature it is the 6th warmest of the 12 months.

Expect about 15 mm of rain on roughly 2 days, which makes February a fairly dry month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 33 min on an average February day.

The nearest other city in this atlas is Udon Thani (64 km away). In February its highs average 30.5°C, 0.7°C warmer than Vientiane, with 14 mm of rain.

Among the 4 cities listed in Laos, Vientiane ranks 4th of 4 for the warmest February highs and 4th of 4 for the driest February (rainfall, lowest first). The mean February high of those 4 cities is 30.6°C; Vientiane is 0.8°C cooler than that mean.

From February to March, average highs rise by 2.8°C to 32.6°C, and monthly rainfall rises from 15 mm to 36 mm.

The annual picture

February in context

30-year average
Average highAverage low°C
Average daily high and low temperatures by month The same values are available in the monthly table below. Lines show mean daily maxima and minima, not a forecast interval. 152025303540 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly rainfall

Average total · mm
Average monthly rainfall totalsEach bar is a mean monthly total over 1991–2020. Full numbers are in the table. JanFebMarAprMayJunJulAugSepOctNovDec 4500

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Vientiane climate table

1991–2020
Monthly climate averages for Vientiane, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 27.3°C17.0°C17.0°C111.811.211 h
February, selected 29.8°C18.9°C18.9°C152.211.512 h
March 32.6°C22.1°C22.1°C366.212.012 h
April 33.8°C24.4°C24.4°C7511.912.513 h
May 31.9°C24.7°C24.7°C26123.413.013 h
June 30.5°C24.7°C24.7°C31625.013.213 h
July 29.9°C24.4°C24.4°C37226.513.113 h
August 29.6°C24.1°C24.1°C40127.412.713 h
September 29.6°C23.8°C23.8°C30024.712.312 h
October 29.3°C22.7°C22.7°C10111.911.712 h
November 28.7°C20.2°C20.2°C223.011.311 h
December 26.9°C17.3°C17.3°C8.41.211.111 h

Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.

Compare places

February in nearby cities

Distance from Vientiane

Read the numbers correctly

Climate, not a promise.

These patterns help compare months. They cannot tell you the weather on a specific day of your trip.

Sources, method and limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Vientiane) is explained once on the Vientiane year overview and on the Sources, method and limits page.