Component breakdown
Air Quality
PM2.5 as US AQI, annual means over the window
8.4
Good
Climate
Apparent temperature, 18-24°C optimal
8.1
Good
Wind
Daily maximum gusts, calm is comfortable
7.0
Good
UV Safety
Hazardous UV peaks penalized, low UV is not
8.4
Good
Day-Night Swing
Daily max-min gap, mild swings score high
9.9
Optimal
Seasons
Distinct but gentle seasons score highest
10.0
Optimal
Sunlight
Annual sunshine hours
8.7
Good
Rainfall
Volume and year-to-year reliability
8.3
Good
Disaster Risk
Recorded events, 3 yr / 50 km
8.2
Good
Goldilocks curve
Cold18-24°CHot
San Francisco sits on the cold slope: mean feels-like 11.5°C.
Air quality source
Ground monitor
This city's air quality is measured by a real monitoring station: OpenAQ ground monitor (2.2km).
Coordinates37.7749, -122.4194
Data window10y
Updated7/13/2026
Sources: Open-Meteo, OpenAQ ground monitor (2.2km), USGS Earthquakes, NOAA IBTrACS, Smithsonian GVP, GloFAS (Copernicus)