Argentina weather by month

This vast country, which is almost as large as India, has a varied topography and climate. Northernmost Argentina is tropical, which means high temperatures and high humidity in the summer months (November to March) and rain throughout the year.

The mighty Iguazu Falls - prepare to get wet! © R.M. Nunes - Adobe Stock Image

Central Argentina, which includes Buenos Aires and the Pampas to the east, has a healthy and pleasant climate, which is warm but fairly rainy in the summer and mild in the winter.

Further west and to the south, the climate is sunny and drier and drought can occasionally be a problem. Western Argentina, including the northern Andes, is a dry region: even on the mountain peaks, which rise as high as 7,000 m (23,000 ft), rain and snowfall is low.

What rain there falls mainly during the summer months which are very sunny and hot. This climate makes the eastern slopes and foothills of the Andes very arid while the surrounding lowlands are desert.

Southern Argentina (also known as Patagonia) is largely dry but temperatures are cooler and the far south has chilly summers and long winters with plenty of frost and snow. However, the region's proximity to the Atlantic Ocean stops temperatures falling unbearably low.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Maximum daytime temperature °C	29	28	26	22	19	15	15	17	19	22	25	28
Hours of sunshine (daily)	9	9	7	7	5	4	5	6	6	7	8	8
Days with some rainfall	8	8	8	7	7	7	7	7	7	10	9	9
Sea temperature °C	24	24	23	20	17	14	12	13	15	17	20	23

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Argentina by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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The climate guide for Argentina (Buenos Aires) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Argentina climate overview

Argentina is the second largest country in South America and occupies most of the southern portion of the continent with a long Atlantic coastline. About 85% of the population are of European origin, making it the most 'European' of all South American countries and over one third of Argentineans live in or around the cosmopolitan capital, Buenos Aires.

The Casa Rosada where Eva Peron lived © Galina Savina - Adobe Stock Image

The geography of Argentina is dominated by the Andes Mountains that stretch along the entire length of its western border with Chile. From the base of the mountains a gently undulating plain gradually extends eastward down to the Atlantic Ocean.

The most fertile region is the central eastern area known as the Pampas, a vast expanse of flat treeless grassland now transformed to growing wheat and other cereals, and raising cattle. Rainfall is higher in the summer than the winter on the Pampas, however the percentage of daylight hours with bright sunshine is also higher in summer. Rainfall in all months decreases with distance from the sea.

The north of the country is tropical with a winter dry season. At low elevations summers can be hot and humid but winter temperatures are generally comfortable, though frosts do occur throughout the region. Some rain falls in the east during the winter months and the vegetation reflects this, with areas of rainforest in the extreme north east of the country.

Western Argentina is arid because the prevailing winds in this region blow from the west off the Pacific Ocean and deposit their moisture as rainfall in Chile on the western side of the mountains. The eastern slopes receive very little rain, and desert conditions extend in a swathe down the west of the country and, between the Colorado and the Deseado Rivers, as far as the Atlantic Ocean. What little rainfall there is falls generally in the summer months.

Visiting the Lake District in Argentina © Pawopa3336 - Fotolia.com

South of here lies Patagonia, an enormous desolate region of inhospitable mountains and plateaux with snow-capped volcanoes and glaciers. Rain or snow falls mostly during the freezing cloudy winters, while the cool summer months tend to be windy but mostly dry. Poor soils and the lack of rainfall make this region unsuitable for cultivation and consequently it is sparsely populated.

What to pack for Argentina weather

Pack light cotton clothes for northern and western Argentina (unless going high up into the Andes) and for Central Argentina in their summer.

Take warmer wear for central districts in winter and summer visits to the south. Wrap up very warmly for the winter months in Southern Argentina. Even dry Western Argentina experiences some rain, so go prepared.

Argentina temperature by month

Compare the average temperature by month for popular destinations in Argentina. Select a place from below to see more long term weather averages by month.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Buenos Aires	29	28	26	22	19	15	15	17	19	22	25	28
El Calafate	16	15	13	10	5	3	2	4	8	11	13	15
Iguazu Falls	32	31	31	27	24	21	22	24	25	28	30	32
Mendoza	31	30	26	23	19	15	15	18	20	25	28	30
San Carlos de Bariloche	22	22	19	15	10	7	7	8	11	14	17	20
Ushuaia	12	12	11	8	5	3	3	4	7	9	10	12

All Argentina destinations

Temperature in Argentina (°C)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Max temperature (daytime)	29	28	26	22	19	15	15	17	19	22	25	28
Min temperature (night-time)	20	19	17	14	11	8	7	8	10	13	15	18
Heat & Humidity	M	M	L	0	0	0	0	0	0	0	0	M
Sea temperature	24	24	23	20	17	14	12	13	15	17	20	23