Vitamin D from sunlight in Hong Kong
How long you need in the sun to make vitamin D, and when the sun is too low to make any at all, for 3 cities in Hong Kong.
| City | Latitude | Elevation | Vitamin D winter |
|---|---|---|---|
| Hong Kong | 22.28°N | 60 m | none |
| Tuen Mun | 22.39°N | 7 m | none |
| Tsuen Wan | 22.37°N | 1 m | none |
The same sun that makes vitamin D also burns. UV index and sunburn times in Hong Kong →