Buenos Aires · Month comparison

September vs April

April ranks #1 overall vs September at #5. The finest month in Buenos Aires — mild, beautiful, and the BAFICI film festival puts cinema at the centre of the city.

Buenos Aires September — aerial view of the Obelisco and Avenida 9 de Julio as the city emerges from winter into spring

September

#5 of 12 months

Strong option

Spring begins and the city stirs — warming temperatures and the first jacaranda blossoms signal Buenos Aires's best season approaching.

  • ↑The first jacaranda trees begin flowering in late September, the unmistakable purple-blue canopy that makes Buenos Aires's spring streets among the most beautiful in South America
  • ↑Temperatures reach a very comfortable 18°C average and sunshine hours recover (6.4 daily); outdoor life — the parrillas with open terraces, Palermo cycling paths, and San Telmo market — becomes genuinely pleasant again
Buenos Aires April — the vast Recoleta Cemetery in autumn light, the final resting place of Eva Perón and generations of Argentine history

April

#1 of 12 months

Best match

The finest month in Buenos Aires — mild, beautiful, and the BAFICI film festival puts cinema at the centre of the city.

  • ↑BAFICI (Buenos Aires International Festival of Independent Cinema, usually April) — one of the world's great independent film festivals, with screenings across the city at venues from Palermo to San Telmo; an authentically Buenos Aires cultural event of serious quality
  • ↑Perfect weather: 23°C average, low humidity, and manageable afternoon showers; the city's boulevards, parks, and outdoor café terraces are at their most inviting
FactorSeptemberApril
Weather score
8
9
Value score
6
7
Crowd score
6
7
Events score
7
8
Atmosphere
8
9
Avg high temp18°C23°C
Monthly rain77mm90mm
Daily sunshine6.4hrs6.8hrs

September trade-offs

  • ↓September is transitional — the jacarandas are starting but not at peak, and some days remain cool and grey; the full spring magic of October is still a month away
  • ↓77mm of rain means unpredictable afternoons; spring in Buenos Aires is beautiful but not dry, and an umbrella remains essential
  • ↓Hotels are beginning to fill as the shoulder season picks up; some popular properties require advance booking for October-adjacent weekends

April trade-offs

  • ↓90mm of rain across April means occasional days of grey and shower; it is by no means a dry month, and an umbrella is essential
  • ↓Slightly fewer major international visitors than the spring months (September–November), meaning some cultural events are locally-oriented and harder to access without Spanish
  • ↓Days are shortening as autumn progresses; golden hour comes earlier and the long evening light of spring and summer is gone
See all 12 months for Buenos Aires →September in detail →April in detail →
Scores compare months within Buenos Aires. Climate data: Open Meteo ERA5 30-year normals (1991–2020). Methodology →