Skip to main content
New York CityOvercast20°

UV index in MacPherson

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

4.6Moderate

Seek shade at midday; use sunscreen, a hat and sunglasses outdoors.
Today's peak
9.2
Protect from
10:00
Until
17:00
High-UV hours
8 hours

UV index, next 24 hours

Show data table
UV index by the hour
TimeUV indexRating
10:004.6Moderate
11:006.8High
12:008.4Very high
13:009.2Very high
14:009Very high
15:008Very high
16:006.1High
17:003.9Moderate
18:001.7Low
19:000.3Low
20:000Low
21:000Low
22:000Low
23:000Low
00:000Low
01:000Low
02:000Low
03:000Low
04:000Low
05:000Low
06:000Low
07:000Low
08:000.6Low
09:002.4Low

Peak UV, next 7 days

Full forecast
  1. Today9.2Very high
  2. Sunday 18/109.1Very high
  3. Monday 19/108.8Very high
  4. Tuesday 20/109.1Very high
  5. Wednesday 21/109.1Very high
  6. Thursday 22/109Very high
  7. Friday 23/108.9Very high

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.

More weather tools

All tools