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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Coast Brief Weather Desk. Data from the Bureau of Meteorology (BOM) and other national met services via Open-Meteo.
Buenos Aires weather is humid subtropical with warm, sticky summers and mild, damp winters — check the live forecast above to plan for the city’s variable conditions, especially during summer and winter extremes.
What is the weather in Buenos Aires like year round?
Buenos Aires weather year round delivers four distinct seasons, with humidity shaping how the temperature actually feels. Summer (December–February) brings highs near 30°C with sticky afternoons and frequent thunderstorms — buenos aires weather december is typically the warmest stretch. Winter (June–August) is mild but damp, with highs near 16°C and overnight lows around 8°C; buenos aires weather in winter rarely drops below freezing, though frost can occur on cold mornings. Spring and autumn offer the most comfortable conditions, with lower humidity and temperatures in the pleasant 18–24°C range. For a detailed look ahead, check the weather 10-day forecast before planning your trip.
When is the best time to visit Buenos Aires?
Autumn (March–May) and spring (September–November) are the most comfortable windows for exploring the city, with mild days and lower rainfall. Buenos Aires weather by month shows that January and February are the hottest and most humid, while June and July are the coolest. For longer-range planning, the buenos aires weather 14 days outlook and buenos aires weather 30 days guidance from the live forecast above can help you decide when to go.
What is the coldest month in Buenos Aires?
July is the coldest month, with average highs near 16°C and overnight lows around 8°C. Frost is uncommon but possible during cold snaps; all temperatures are in celsius on the live forecast above.
Does it snow in Buenos Aires?
Snow is extremely rare in Buenos Aires. The last significant snowfall occurred in July 2007. The city’s coastal, low-elevation location keeps winter temperatures above freezing, making buenos aires weather in winter mostly rainy rather than snowy.
What is the hottest month in Buenos Aires?
January is the hottest month, with average highs around 30°C and high humidity making it feel significantly warmer. Afternoon thunderstorms are frequent, so check the live forecast above for storm timing.