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서울특별시Clear sky14°

UV index in Parwan

WHO scale: from 3 up, protect yourself from the sun. Thin cloud blocks little UV.
☀️ UV now · Parwan

3.6Moderate

Seek shade at midday; use sunscreen, a hat and sunglasses outdoors.
Today's peak
5.2
Protect from
14:00
Until
14:00
High-UV hours
1 hours

UV index, next 24 hours

Show data table
UV index by the hour
TimeUV indexRating
14:003.6Moderate
15:002.2Low
16:000.9Low
17:000.1Low
18:000Low
19:000Low
20:000Low
21:000Low
22:000Low
23:000Low
00:000Low
01:000Low
02:000Low
03:000Low
04:000Low
05:000Low
06:000.1Low
07:000.6Low
08:001.8Low
09:003.2Moderate
10:004.4Moderate
11:005.1Moderate
12:005.2Moderate
13:004.6Moderate

Peak UV, next 7 days

Full forecast
  1. Today5.2Moderate
  2. 10. 22. 목요일5.2Moderate
  3. 10. 23. 금요일5.1Moderate
  4. 10. 24. 토요일4.5Moderate
  5. 10. 25. 일요일5Moderate
  6. 10. 26. 월요일4.8Moderate
  7. 10. 27. 화요일4.6Moderate

Protecting your skin from UV

  • SPF 30+ sunscreenApply 15–20 minutes before going out; reapply every 2 hours and after sweating.
  • Wide-brimmed hat, sunglassesShade your face, neck and eyes — UV400 glasses block nearly all UV.
  • Long sleeves, dense fabricTightly woven, darker fabric blocks more UV than thin, light fabric.
  • Seek midday shadeUV peaks around 10:00–16:00; tip: if your shadow is shorter than you, UV is strong.

UV index FAQ

What UV index is dangerous?

WHO scale: 0–2 low, 3–5 moderate, 6–7 high, 8–10 very high, 11+ extreme. From 3 up, protect yourself; from 8, skin can burn in just 15–20 minutes.

Do I need sunscreen on a cloudy day?

Yes. Thin or broken cloud blocks only a little UV and can even boost it by reflecting off cloud edges. Only very thick cloud cuts it much.

Why is UV higher in the tropics?

The sun is nearly overhead, so UV crosses less atmosphere. In the tropics, midday UV often exceeds 10 all year, especially in summer.

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