Vitamin D in China in June: sun, UV and what to expect
Bad weather Bad weather: it rains on about 28 days in June (rainy or monsoon season), so sun is hard to count on and a beach stay is not recommended.
8.3 hsun window (UV 2.5+)
8.2peak UV Index
7 minto a full dose
31°Cafternoon high
28/30rainy days
28/30sunny days
The country rating is for a typical beach, but some places in China still work in June: Qingdao (excellent).
How long in the sun in June?
- If you travel anyway, plan your sun session around midday (roughly 11:00 to 15:00), when the UV Index peaks at about 8.2. With about a quarter of your skin bare, a full dose takes around 7 minutes for skin type III at age 30, and about 12 minutes at age 65.
- Stop well before your skin turns pink. At this UV level skin type III can start to burn after about 24 minutes of midday sun, so cover up, find shade and use SPF 30+ on skin that stays out.
- On clear days the UV Index reaches about 9.0, which is very strong. Keep sessions short and protect the rest of the day.
- Water, sand and light surfaces reflect UV, so at the beach you get a little more sun than the number suggests, for the good and the bad.
| Skin type | Full dose, age 30 | Full dose, age 65 | Time to burn |
|---|---|---|---|
| Type I | 4 min | 8 min | 16 min |
| Type II | 5 min | 10 min | 20 min |
| Type III | 7 min | 12 min | 24 min |
| Type IV | 10 min | 18 min | 37 min |
| Type V | 13 min | 24 min | 49 min |
| Type VI | 22 min | 41 min | 81 min |
Minutes at midday for about 1,000 IU of vitamin D with a quarter of the body bare, at Sanya, the median coastal place. Time to burn is the time to reach one minimal erythemal dose and does not depend on age. A rough planning guide, not medical advice.
Places in China in June
Other months in China
- Jan Too cold
- Feb Too cold
- Mar Good
- Apr Too hot
- May Bad weather
- Jun Bad weather
- Jul Bad weather
- Aug Too hot
- Sep Bad weather
- Oct Good
- Nov Good
- Dec Too cold
Best months: March, October, November. Full China guide