This information may change. Always check the official source.Last verified: August 2026 by Ondřej Kadlec
Best time to visit Argentina
In Buenos Aires: September to December — the months averaging 18–27 °C by day. 7 of the twelve months clear that band in Buenos Aires, so this is the driest run of 4 in a row.
Argentina is not one climate. Each reference city below is answered on its own numbers.
Buenos Aires
Jan28°January: 28 °C by day, 21 °C at night, 84 mm of rain
Feb27°February: 27 °C by day, 20 °C at night, 103 mm of rain
Mar25°March: 25 °C by day, 18 °C at night, 119 mm of rain
Apr21°April: 21 °C by day, 15 °C at night, 100 mm of rain
May17°May: 17 °C by day, 11 °C at night, 73 mm of rain
Jun14°June: 14 °C by day, 9 °C at night, 57 mm of rain
Jul14°July: 14 °C by day, 8 °C at night, 73 mm of rain
Aug16°August: 16 °C by day, 9 °C at night, 70 mm of rain
Sep18°September: 18 °C by day, 11 °C at night, 76 mm of rain, recommended
Oct21°October: 21 °C by day, 14 °C at night, 107 mm of rain, recommended
Nov24°November: 24 °C by day, 16 °C at night, 95 mm of rain, recommended
Dec27°December: 27 °C by day, 19 °C at night, 86 mm of rain, recommended
Warmest
January, 28 °C
Coolest
June, 14 °C
Driest
June, 57 mm
Wettest
March, 119 mm
Mendoza
March to April and September to November — 18–27 °C by day. No other month of the twelve falls inside that band in Mendoza.
Jan30°January: 30 °C by day, 19 °C at night, 44 mm of rain
Feb28°February: 28 °C by day, 18 °C at night, 43 mm of rain
Mar25°March: 25 °C by day, 15 °C at night, 54 mm of rain, recommended
Apr21°April: 21 °C by day, 11 °C at night, 36 mm of rain, recommended
May16°May: 16 °C by day, 7 °C at night, 28 mm of rain
Jun13°June: 13 °C by day, 4 °C at night, 20 mm of rain
Jul13°July: 13 °C by day, 3 °C at night, 16 mm of rain
Aug16°August: 16 °C by day, 5 °C at night, 24 mm of rain
Sep19°September: 19 °C by day, 7 °C at night, 24 mm of rain, recommended
Oct23°October: 23 °C by day, 11 °C at night, 40 mm of rain, recommended
Nov27°November: 27 °C by day, 15 °C at night, 38 mm of rain, recommended
Dec29°December: 29 °C by day, 17 °C at night, 36 mm of rain
Warmest
January, 30 °C
Coolest
June, 13 °C
Driest
July, 16 mm
Wettest
March, 54 mm
Bariloche
December to March — 18–27 °C by day. No other month of the twelve falls inside that band in Bariloche.
Jan21°January: 21 °C by day, 10 °C at night, 33 mm of rain, recommended
Feb21°February: 21 °C by day, 10 °C at night, 35 mm of rain, recommended
Mar18°March: 18 °C by day, 9 °C at night, 42 mm of rain, recommended
Apr13°April: 13 °C by day, 6 °C at night, 82 mm of rain
May9°May: 9 °C by day, 3 °C at night, 117 mm of rain
Jun5°June: 5 °C by day, 1 °C at night, 186 mm of rain
Jul4°July: 4 °C by day, 0 °C at night, 151 mm of rain
Aug6°August: 6 °C by day, 1 °C at night, 141 mm of rain
Sep8°September: 8 °C by day, 1 °C at night, 74 mm of rain
Oct11°October: 11 °C by day, 3 °C at night, 67 mm of rain
Nov15°November: 15 °C by day, 5 °C at night, 54 mm of rain
Dec19°December: 19 °C by day, 8 °C at night, 40 mm of rain, recommended
Warmest
January, 21 °C
Coolest
July, 4 °C
Driest
January, 33 mm
Wettest
June, 186 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.
Buenos Aires
Long-term averages for Buenos Aires: 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
Buenos Aires
Month
Day (°C)
Night (°C)
Rain (mm)
January
28
21
84
February
27
20
103
March
25
18
119
April
21
15
100
May
17
11
73
June
14
9
57
July
14
8
73
August
16
9
70
September
18
11
76
October
21
14
107
November
24
16
95
December
27
19
86
Mendoza
Long-term averages for Mendoza: 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
Mendoza
Month
Day (°C)
Night (°C)
Rain (mm)
January
30
19
44
February
28
18
43
March
25
15
54
April
21
11
36
May
16
7
28
June
13
4
20
July
13
3
16
August
16
5
24
September
19
7
24
October
23
11
40
November
27
15
38
December
29
17
36
Bariloche
Long-term averages for Bariloche: 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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