Rank 02 · Argentina

Buenos Aires

Argentina · metro
8.5
HECI score
B
Class B
Seasonal Sweet Spot

Component breakdown

Air Quality
PM2.5 as US AQI, annual means over the window
8.1
Good
Climate
Apparent temperature, 18-24°C optimal
8.1
Good
Wind
Daily maximum gusts, calm is comfortable
7.9
Good
UV Safety
Hazardous UV peaks penalized, low UV is not
8.1
Good
Day-Night Swing
Daily max-min gap, mild swings score high
9.2
Optimal
Seasons
Distinct but gentle seasons score highest
9.9
Optimal
Sunlight
Annual sunshine hours
8.4
Good
Rainfall
Volume and year-to-year reliability
8.9
Good
Disaster Risk
Recorded events, 3 yr / 50 km
9.6
Optimal

Goldilocks curve

Cold18-24°CHot

Buenos Aires sits just below the plateau on the cool side, mean feels-like 16.6°C.

Air quality source

Model, monitor-calibrated

No monitor reports live today, but this city's own monitor history was used to calibrate the CAMS model, correcting its local bias before scoring.

Coordinates-34.6037, -58.3816
Data window10y
Updated7/13/2026
Sources: Open-Meteo, Open-Meteo AQ (CAMS model, monitor-corrected), USGS Earthquakes, NOAA IBTrACS, Smithsonian GVP, GloFAS (Copernicus)