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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

  1. January: 28 °C by day, 21 °C at night, 84 mm of rain
  2. February: 27 °C by day, 20 °C at night, 103 mm of rain
  3. March: 25 °C by day, 18 °C at night, 119 mm of rain
  4. April: 21 °C by day, 15 °C at night, 100 mm of rain
  5. May: 17 °C by day, 11 °C at night, 73 mm of rain
  6. June: 14 °C by day, 9 °C at night, 57 mm of rain
  7. July: 14 °C by day, 8 °C at night, 73 mm of rain
  8. August: 16 °C by day, 9 °C at night, 70 mm of rain
  9. September: 18 °C by day, 11 °C at night, 76 mm of rain, recommended
  10. October: 21 °C by day, 14 °C at night, 107 mm of rain, recommended
  11. November: 24 °C by day, 16 °C at night, 95 mm of rain, recommended
  12. 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.

  1. January: 30 °C by day, 19 °C at night, 44 mm of rain
  2. February: 28 °C by day, 18 °C at night, 43 mm of rain
  3. March: 25 °C by day, 15 °C at night, 54 mm of rain, recommended
  4. April: 21 °C by day, 11 °C at night, 36 mm of rain, recommended
  5. May: 16 °C by day, 7 °C at night, 28 mm of rain
  6. June: 13 °C by day, 4 °C at night, 20 mm of rain
  7. July: 13 °C by day, 3 °C at night, 16 mm of rain
  8. August: 16 °C by day, 5 °C at night, 24 mm of rain
  9. September: 19 °C by day, 7 °C at night, 24 mm of rain, recommended
  10. October: 23 °C by day, 11 °C at night, 40 mm of rain, recommended
  11. November: 27 °C by day, 15 °C at night, 38 mm of rain, recommended
  12. 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.

  1. January: 21 °C by day, 10 °C at night, 33 mm of rain, recommended
  2. February: 21 °C by day, 10 °C at night, 35 mm of rain, recommended
  3. March: 18 °C by day, 9 °C at night, 42 mm of rain, recommended
  4. April: 13 °C by day, 6 °C at night, 82 mm of rain
  5. May: 9 °C by day, 3 °C at night, 117 mm of rain
  6. June: 5 °C by day, 1 °C at night, 186 mm of rain
  7. July: 4 °C by day, 0 °C at night, 151 mm of rain
  8. August: 6 °C by day, 1 °C at night, 141 mm of rain
  9. September: 8 °C by day, 1 °C at night, 74 mm of rain
  10. October: 11 °C by day, 3 °C at night, 67 mm of rain
  11. November: 15 °C by day, 5 °C at night, 54 mm of rain
  12. 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
51015202530°C0200mmJanFebMarAprMayJunJulAugSepOctNovDecJanuary: Day 28 °C, Night 21 °C, Rain 84 mm. February: Day 27 °C, Night 20 °C, Rain 103 mm. March: Day 25 °C, Night 18 °C, Rain 119 mm. April: Day 21 °C, Night 15 °C, Rain 100 mm. May: Day 17 °C, Night 11 °C, Rain 73 mm. June: Day 14 °C, Night 9 °C, Rain 57 mm. July: Day 14 °C, Night 8 °C, Rain 73 mm. August: Day 16 °C, Night 9 °C, Rain 70 mm. September: Day 18 °C, Night 11 °C, Rain 76 mm. October: Day 21 °C, Night 14 °C, Rain 107 mm. November: Day 24 °C, Night 16 °C, Rain 95 mm. December: Day 27 °C, Night 19 °C, Rain 86 mm
Show the monthly table
Buenos Aires
MonthDay (°C)Night (°C)Rain (mm)
January282184
February2720103
March2518119
April2115100
May171173
June14957
July14873
August16970
September181176
October2114107
November241695
December271986

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
051015202530°C0100mmJanFebMarAprMayJunJulAugSepOctNovDecJanuary: Day 30 °C, Night 19 °C, Rain 44 mm. February: Day 28 °C, Night 18 °C, Rain 43 mm. March: Day 25 °C, Night 15 °C, Rain 54 mm. April: Day 21 °C, Night 11 °C, Rain 36 mm. May: Day 16 °C, Night 7 °C, Rain 28 mm. June: Day 13 °C, Night 4 °C, Rain 20 mm. July: Day 13 °C, Night 3 °C, Rain 16 mm. August: Day 16 °C, Night 5 °C, Rain 24 mm. September: Day 19 °C, Night 7 °C, Rain 24 mm. October: Day 23 °C, Night 11 °C, Rain 40 mm. November: Day 27 °C, Night 15 °C, Rain 38 mm. December: Day 29 °C, Night 17 °C, Rain 36 mm
Show the monthly table
Mendoza
MonthDay (°C)Night (°C)Rain (mm)
January301944
February281843
March251554
April211136
May16728
June13420
July13316
August16524
September19724
October231140
November271538
December291736

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).

DayNight
0510152025°C0200mmJanFebMarAprMayJunJulAugSepOctNovDecJanuary: Day 21 °C, Night 10 °C, Rain 33 mm. February: Day 21 °C, Night 10 °C, Rain 35 mm. March: Day 18 °C, Night 9 °C, Rain 42 mm. April: Day 13 °C, Night 6 °C, Rain 82 mm. May: Day 9 °C, Night 3 °C, Rain 117 mm. June: Day 5 °C, Night 1 °C, Rain 186 mm. July: Day 4 °C, Night 0 °C, Rain 151 mm. August: Day 6 °C, Night 1 °C, Rain 141 mm. September: Day 8 °C, Night 1 °C, Rain 74 mm. October: Day 11 °C, Night 3 °C, Rain 67 mm. November: Day 15 °C, Night 5 °C, Rain 54 mm. December: Day 19 °C, Night 8 °C, Rain 40 mm
Show the monthly table
Bariloche
MonthDay (°C)Night (°C)Rain (mm)
January211033
February211035
March18942
April13682
May93117
June51186
July40151
August61141
September8174
October11367
November15554
December19840

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Sources (1)

What this guide was checked against. Rules and prices change — follow the official link before you rely on a detail.