Vitamin DGlobal Solar Explorer

Vitamin D from the sun in Hong Kong

In Hong Kong you can synthesize vitamin D all year round.

Year-round profile in Hong Kong

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

Seasonal windows

  • March: between 09:00 and 17:00, about 5 min for 1000 IU.
  • June: between 09:00 and 17:00, about 4 min for 1000 IU.
  • September: between 09:00 and 16:00, about 5 min for 1000 IU.
  • December: between 10:00 and 15:00, about 9 min for 1000 IU.

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

Calculate my window in Hong Kong

Frequently asked questions about vitamin D in Hong Kong

Can I get vitamin D from the sun in winter in Hong Kong?
In Hong Kong you can synthesize vitamin D all year round.
How many minutes of sun do I need in Hong Kong?
In summer, about 5 minutes with arms and face exposed is enough for 1000 IU (Fitzpatrick type III skin, clear sky).
Built by Javier Aguilar