Buenos Aires · Argentina
September
Spring begins and the city stirs — warming temperatures and the first jacaranda blossoms signal Buenos Aires's best season approaching.
Strong option
#5 of 12 months
There are better months for Buenos Aires — see the full ranking below.
See when to go instead →Climate
High
18°C
Low
11°C
Rain
77mm
Sun
6.4hrs/day
30-year climate normals · Open Meteo ERA5
How September scores in Buenos Aires
Weather
Excellent
Value
Good
Crowds
Good
Events
Very good
Atmosphere
Excellent
What you gain in September
- ↑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
- ↑Prices are still relatively moderate before the October–November peak; one of the better value windows to access spring Buenos Aires
What you sacrifice
- ↓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
How September compares to April (best month)
| Factor | September | April ★ |
|---|---|---|
| Weather | 8 | 9 |
| Value | 6 | 7 |
| Crowds | 6 | 7 |
September in other destinations
Lisbon (24.6°C)Barcelona (25.5°C)Tokyo (28.1°C)Bali (30.4°C)Santorini (24.1°C)Paris (21.6°C)New York (23.9°C)Marrakech (31.6°C)Amsterdam (18.8°C)Maldives (30.2°C)Rome (26.5°C)Bangkok (31°C)Istanbul (24.2°C)Vienna (22.1°C)Seoul (25.1°C)Dubrovnik (24.9°C)Rio de Janeiro (27.3°C)Kyoto (28.6°C)Phuket (31°C)Cape Town (19°C)Prague (21°C)Amalfi Coast (27°C)Mexico City (22°C)Medellín (28°C)Fiji (27°C)London (20°C)Sydney (20°C)Iceland (10°C)Tulum (32°C)Dubai (39°C)Singapore (32°C)Hoi An (31°C)Chiang Mai (31°C)Miami (32.8°C)Florence (26.3°C)Queenstown (12.5°C)Madrid (28.7°C)Porto (25°C)Edinburgh (16°C)Copenhagen (18°C)Budapest (23°C)Kraków (19°C)Tbilisi (26°C)Palawan (30°C)Hanoi (31°C)Osaka (29°C)Goa (30°C)Cusco (20°C)Mykonos (27°C)Zanzibar (27°C)Sri Lanka (30°C)Costa Rica (24°C)
Climate data: 30-year normals (1991–2020) from Open Meteo ERA5 reanalysis. Scores compare months within Buenos Aires, not across destinations. Methodology →