Vitamin D from sunlight in Thailand
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 Thailand.
| City | Latitude | Elevation | Vitamin D winter |
|---|---|---|---|
| Bangkok | 13.75°N | 12 m | none |
| Samut Prakan | 13.60°N | 2 m | none |
| Chon Buri | 13.36°N | 8 m | none |
The same sun that makes vitamin D also burns. UV index and sunburn times in Thailand →