Vitamin DGlobal Solar Explorer

Vitamin D from the sun in Phoenix

In Phoenix you can synthesize vitamin D all year round.

Year-round profile in Phoenix

JFMAMJJASOND
Daily hours with enough sun to synthesize vitamin D across the year.

Seasonal windows

  • March: between 10:00 and 16:00, about 8 min for 1000 IU.
  • June: between 09:00 and 17:00, about 5 min for 1000 IU.
  • September: between 10:00 and 16:00, about 7 min for 1000 IU.
  • December: synthesis isn't possible.

Estimated for Fitzpatrick type III skin, arms and face exposed, clear sky.

Calculate my window in Phoenix

Frequently asked questions about vitamin D in Phoenix

Can I get vitamin D from the sun in winter in Phoenix?
In Phoenix you can synthesize vitamin D all year round.
How many minutes of sun do I need in Phoenix?
In summer, about 8 minutes with arms and face exposed is enough for 1000 IU (Fitzpatrick type III skin, clear sky).
Built by Javier Aguilar