This information may change. Always check the official source.Last verified: July 2026 by Ondřej Kadlec
Best time to visit Laos
In Vientiane: December to January — the months averaging 18–27 °C by day. No other month of the twelve falls inside that band in Vientiane.
Laos is not one climate. Each reference city below is answered on its own numbers.
Vientiane
Jan27°January: 27 °C by day, 17 °C at night, 11 mm of rain, recommended
Feb30°February: 30 °C by day, 19 °C at night, 13 mm of rain
Mar32°March: 32 °C by day, 22 °C at night, 36 mm of rain
Apr34°April: 34 °C by day, 24 °C at night, 74 mm of rain
May32°May: 32 °C by day, 25 °C at night, 242 mm of rain
Jun31°June: 31 °C by day, 25 °C at night, 307 mm of rain
Jul30°July: 30 °C by day, 24 °C at night, 379 mm of rain
Aug30°August: 30 °C by day, 24 °C at night, 410 mm of rain
Sep30°September: 30 °C by day, 24 °C at night, 327 mm of rain
Oct30°October: 30 °C by day, 23 °C at night, 107 mm of rain
Nov29°November: 29 °C by day, 21 °C at night, 23 mm of rain
Dec27°December: 27 °C by day, 17 °C at night, 5 mm of rain, recommended
Warmest
April, 34 °C
Coolest
January, 27 °C
Driest
December, 5 mm
Wettest
August, 410 mm
Luang Prabang
December to January — 18–27 °C by day. No other month of the twelve falls inside that band in Luang Prabang.
Jan27°January: 27 °C by day, 16 °C at night, 21 mm of rain, recommended
Feb30°February: 30 °C by day, 18 °C at night, 12 mm of rain
Mar33°March: 33 °C by day, 21 °C at night, 34 mm of rain
Apr33°April: 33 °C by day, 23 °C at night, 84 mm of rain
May32°May: 32 °C by day, 24 °C at night, 156 mm of rain
Jun32°June: 32 °C by day, 24 °C at night, 170 mm of rain
Jul30°July: 30 °C by day, 24 °C at night, 272 mm of rain
Aug30°August: 30 °C by day, 23 °C at night, 312 mm of rain
Sep30°September: 30 °C by day, 23 °C at night, 205 mm of rain
Oct29°October: 29 °C by day, 22 °C at night, 81 mm of rain
Nov28°November: 28 °C by day, 19 °C at night, 26 mm of rain
Dec26°December: 26 °C by day, 16 °C at night, 18 mm of rain, recommended
Warmest
March, 33 °C
Coolest
December, 26 °C
Driest
February, 12 mm
Wettest
August, 312 mm
How this is worked out: a month qualifies when its mean daytime high falls between 18 °C and 27 °C. Where more than five qualify, the answer is the driest run of consecutive qualifying months; where none do, it is the driest three months in a row if the year is hot throughout, or the warmest three if it never gets there. The figures are the thirty-year monthly averages charted below, and they are averages, not a forecast — any single year can miss them by a wide margin.
Vientiane
Long-term averages for Vientiane: the mean daily high, the mean overnight low and the mean monthly rainfall across 30 years of ERA5 reanalysis data (1995–2024).
DayNight
Show the monthly table
Vientiane
Month
Day (°C)
Night (°C)
Rain (mm)
January
27
17
11
February
30
19
13
March
32
22
36
April
34
24
74
May
32
25
242
June
31
25
307
July
30
24
379
August
30
24
410
September
30
24
327
October
30
23
107
November
29
21
23
December
27
17
5
Luang Prabang
Long-term averages for Luang Prabang: the mean daily high, the mean overnight low and the mean monthly rainfall across 30 years of ERA5 reanalysis data (1995–2024).
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