Argentina Climate
Top 5 Cities: Buenos Aires, Córdoba, Rosario, Mendoza, and La Plata
This month in numbers
Argentina experienced a cooler April, with temperatures averaging 13.9°C, an anomaly of -0.4°C compared to the 1961–1990 baseline. This ranked as the 64th warmest April in 86 years of records. Globally, April 2026 was the 2nd warmest April on record for land temperatures, with an anomaly of +1.1°C.
What changed
Looking at the broader picture, the February–April 2026 period in Argentina was significantly warmer, with an average temperature of 18.48°C, marking a +1°C anomaly against the 1961–1990 baseline. This made it the 7th warmest such period on record for the country. In contrast to the global trend of widespread warmth, Argentina was notably cooler than its South American counterparts this past month, with its April anomaly being 0.98°C cooler than the group average. Argentina was also among the 5 coolest countries globally for the latest month's anomaly, ranking 231st out of 234 countries.
What’s driving change?
The current ENSO state is Neutral, with a +0.11°C anomaly in the NOAA ONI 3-month (FMA 2026) ENSO tracker. However, there is a strong forecast for an evolving El Niño phase in the coming months, with a 61% probability for May-Jul and 79% for June-Aug. Historically, El Niño typically brings wetter conditions to Northern Argentina. Argentina has been grappling with significant drought conditions, with two drought events active since September 2022, representing 100% of the annual total for the past 12 months, an unusual concentration for the region Extreme Weather tracker. This ongoing drought has been exacerbated by a series of heatwaves. In March 2025, a cold front interacting with warm, humid air from a preceding heatwave led to unprecedented rainfall and flash flooding in Bahía Blanca, with the city receiving approximately two-thirds of its average annual rainfall in just 8 hours.
Looking ahead
The strong forecast for an El Niño phase in the coming months suggests a likelihood of wetter-than-average conditions for Northern Argentina during the spring and summer.
Generated by Gemini from climate data and web sources
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Data Sources
Data Sources for Argentina
Every figure on this page is sourced from official, openly published climate datasets. Anomalies are calculated against the 1961–1990 baseline (temperature) and 1991–2020 (rainfall, sunshine, frost) — see the Methodology & Sources page for the complete dataset list and update calendar.
FAQs
FAQs
How is the climate in Argentina changing?
Argentina is warming in line with the rest of the world. The page above shows the latest monthly temperature anomaly versus the 1961-1990 baseline, the long-term annual trend, and the region's rank in the historical record. The trend rate is shown as °C per decade in the headline panel; you can also see the warmest and coolest years on file.
Where does the climate data for Argentina come from?
Climate data for Argentina comes from Our World in Data, sourcing Copernicus ERA5 and HadCRUT5 (national temperature anomaly) and the Global Carbon Project via Our World in Data (CO₂ emissions), refreshed every month, when the upstream temperature and rainfall data are refreshed.
What is the climate baseline used on this page?
Anomalies on this page are calculated against the 1961-1990 climatological baseline, which is the standard reference period used by the Met Office, NOAA, IPCC and most national climate services. Some panels also show the source-native 1901-2000 (NOAA) or 1991-2020 (WMO) baselines for verification. See Methodology & Sources for the full reference.
Which areas does the Argentina climate data cover?
The Argentina climate profile covers Buenos Aires, Córdoba, Rosario, Mendoza and surrounding areas. Temperature, rainfall and emissions data for Argentina
How often is the Argentina climate update refreshed?
The Argentina climate update is refreshed monthly, typically a few days after the previous month closes and the upstream provider (Met Office HadUK-Grid, NOAA Climate at a Glance, Copernicus ERA5 or the Global Carbon Project) publishes its update. See the Climate Rankings for cross-region comparisons.