Climate averages 1991–2020

Weather in Argentina.

ClimaNote covers 67 cities in Argentina, starting with Buenos Aires, Córdoba and Rosario. Open a city for charts and a table of all 12 months, or open a month for a side-by-side comparison of cities in the atlas.

Across these cities the yearly average high ranges from 11.5°C in San Carlos de Bariloche to 27.0°C in Santiago del Estero (tied with Formosa, Argentina), and yearly rainfall from 192 mm in San Juan, Argentina (tied with Rawson) to 1,695 mm in Posadas. The hottest city-month is January in Santiago del Estero, with an average high of 32.4°C (tied with January in Presidencia Roque Sáenz Peña), and the coolest is July in San Carlos de Bariloche, at 3.8°C. By single month, the most rain falls in October in Posadas, with 216 mm, and the least in June in San Martín, with 5.5 mm.

January is the warmest month in 64 cities and December in 2 (in 1 other city two or more months tie); July is the coolest in 64 cities and June in 3. October is the wettest month in 34 cities, March in 11, December in 7, January in 5, April in 3, November in 3 and June in 2 (in 2 other cities two or more months tie); July is the driest in 26 cities, June in 16, May in 7, August in 6 and January in 2 (in 10 other cities two or more months tie). None of these cities has a month with an average high below 2.0°C, a month with under 1 mm of rain or a month with more than 300 mm of rain.

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Argentina by month

67 cities

Cities in Argentina

Yearly averages

Buenos Aires

Yearly climate averages for cities in Buenos Aires
City	Average high	Average low	Rain mm/year
Mar del Plata	18°C	11°C	811
Avellaneda	21°C	14°C	978
Bahía Blanca	21°C	12°C	604
Merlo	22°C	13°C	956
Quilmes	21°C	13°C	978
Laferrere	22°C	13°C	958
José C. Paz	22°C	13°C	996
La Plata	20°C	14°C	952
Berazategui	20°C	14°C	978
San Miguel, Argentina	21°C	13°C	996
Moreno	22°C	12°C	956
San Nicolás de los Arroyos	23°C	14°C	1,045
Isidro Casanova	21°C	13°C	958
Tandil	19°C	9°C	793
Ezeiza	21°C	13°C	958
Lomas de Zamora	21°C	13°C	958
Zárate	22°C	13°C	1,081
Luján	22°C	12°C	994
Pergamino	22°C	13°C	1,012
San Vicente	21°C	12°C	948
Olavarría	20°C	10°C	836
Berisso	20°C	14°C	1,038
Junín	22°C	12°C	976
Campana	22°C	12°C	1,045
Mar del Tuyú	18°C	14°C	914
Pilar	22°C	12°C	994
Bella Vista	22°C	13°C	996
Necochea	18°C	12°C	792
Don Torcuato	21°C	13°C	996

Buenos Aires F.D.

Yearly climate averages for cities in Buenos Aires F.D.
City	Average high	Average low	Rain mm/year
Buenos Aires	21°C	14°C	1,053

Cordoba

Yearly climate averages for cities in Cordoba
City	Average high	Average low	Rain mm/year
Córdoba	23°C	12°C	889
Río Cuarto	22°C	12°C	738
Villa María	23°C	14°C	896

Santa Fe

Yearly climate averages for cities in Santa Fe
City	Average high	Average low	Rain mm/year
Rosario	23°C	14°C	1,030
Santa Fe	24°C	15°C	1,135
Reconquista	25°C	16°C	1,315
Rafaela	24°C	14°C	1,110
Gobernador Gálvez	23°C	14°C	1,030
Venado Tuerto	22°C	13°C	958

Corrientes

Yearly climate averages for cities in Corrientes
City	Average high	Average low	Rain mm/year
Corrientes	26°C	17°C	1,504
Ituzaingó	26°C	18°C	1,669
Goya	25°C	17°C	1,346

Entre Rios

Yearly climate averages for cities in Entre Rios
City	Average high	Average low	Rain mm/year
Paraná	23°C	14°C	1,086
Concordia	24°C	15°C	1,298
Gualeguaychú	23°C	14°C	1,221

Chaco

Yearly climate averages for cities in Chaco
City	Average high	Average low	Rain mm/year
Resistencia	26°C	17°C	1,456
Presidencia Roque Sáenz Peña	27°C	17°C	1,171

Mendoza

Yearly climate averages for cities in Mendoza
City	Average high	Average low	Rain mm/year
San Rafael	22°C	10°C	464
Mendoza	21°C	10°C	453
San Martín	23°C	12°C	278

Misiones

Yearly climate averages for cities in Misiones
City	Average high	Average low	Rain mm/year
Posadas	26°C	18°C	1,695

San Luis

Yearly climate averages for cities in San Luis
City	Average high	Average low	Rain mm/year
San Luis	23°C	12°C	665
Villa Mercedes, Argentina	23°C	12°C	691

Rio Negro

Yearly climate averages for cities in Rio Negro
City	Average high	Average low	Rain mm/year
Cipolletti	22°C	10°C	228
San Carlos de Bariloche	12°C	4°C	976
General Roca	22°C	11°C	268

Santiago del Estero

Yearly climate averages for cities in Santiago del Estero
City	Average high	Average low	Rain mm/year
Santiago del Estero	27°C	17°C	817

San Juan

Yearly climate averages for cities in San Juan
City	Average high	Average low	Rain mm/year
Rawson	24°C	11°C	192
San Juan, Argentina	24°C	11°C	192

Chubut

Yearly climate averages for cities in Chubut
City	Average high	Average low	Rain mm/year
Comodoro Rivadavia	16°C	9°C	244
Trelew	21°C	9°C	220

Neuquen

Yearly climate averages for cities in Neuquen
City	Average high	Average low	Rain mm/year
Neuquén	22°C	10°C	228

Formosa

Yearly climate averages for cities in Formosa
City	Average high	Average low	Rain mm/year
Formosa, Argentina	27°C	18°C	1,543

Catamarca

Yearly climate averages for cities in Catamarca
City	Average high	Average low	Rain mm/year
Catamarca	24°C	14°C	871

La Pampa

Yearly climate averages for cities in La Pampa
City	Average high	Average low	Rain mm/year
Santa Rosa, Argentina	22°C	12°C	699

Santa Cruz

Yearly climate averages for cities in Santa Cruz
City	Average high	Average low	Rain mm/year
Río Gallegos	12°C	4°C	353

Salta

Yearly climate averages for cities in Salta
City	Average high	Average low	Rain mm/year
San Ramón de la Nueva Orán	26°C	17°C	1,142

Yearly average of the 12 monthly values for 1991–2020. Open a city for every month.