City directory
Vitamin D from the sun, city by city
73
cities
Pick your city to see which months the sun lets you make vitamin D there, with each season's windows.
Extreme latitudes (55°+) — long winters with no useful sun
High latitudes (45–55°)
Mid latitudes (35–45°)
- Athens9 months of sun
- Auckland10 months of sun
- Barcelona8 months of sun
- Beijing9 months of sun
- Chicago8 months of sun
- Denver9 months of sun
- Istanbul8 months of sun
- Lisbon9 months of sun
- Madrid9 months of sun
- Malaga10 months of sun
- Marseille8 months of sun
- Melbourne9 months of sun
- New York8 months of sun
- Rome8 months of sun
- San Francisco9 months of sun
- Seoul9 months of sun
- Seville10 months of sun
- Tokyo10 months of sun
- Toronto8 months of sun
- Valencia9 months of sun
Subtropical (23–35°)
- Buenos Aires11 months of sun
- Cairosun all year
- Cape Townsun all year
- Casablancasun all year
- Delhisun all year
- Dubaisun all year
- Johannesburgsun all year
- Las Palmassun all year
- Los Angeles11 months of sun
- Miamisun all year
- Montevideo10 months of sun
- Perthsun all year
- Phoenixsun all year
- Santiagosun all year
- São Paulosun all year
- Shanghaisun all year
- Sydneysun all year
- Taipeisun all year
- Tenerifesun all year