howmuchsun

UV index and sunburn time in Şabāḩ as Sālim

UV peaks at 12.6 (extreme) in July, around 11:30 local time. At that intensity, untanned skin of type III burns in about 19 min.

How long before you burn?

Sunburn after 19 min unprotected, at peak UV in July
Peak UV index 12.6 Extreme
With SPF 30 9 h if applied properly and reapplied

UV index month by month

Peak value on a representative day of each month, with burn time for skin type III.

MonthPeak UVCategoryPeak atBurns after
January 4.4 Moderate 11:30 53 min
February 6.2 High 12:30 37 min
March 8.5 Very high 11:30 27 min
April 10.7 Very high 11:30 22 min
May 11.9 Extreme 11:30 20 min
June 12.4 Extreme 11:30 19 min
July 12.6 Extreme 11:30 19 min
August 12.2 Extreme 11:30 19 min
September 10.6 Very high 11:30 22 min
October 7.9 High 11:30 29 min
November 5.4 Moderate 11:30 43 min
December 4.1 Moderate 11:30 56 min

Burn time by skin type

At peak UV in July, with no sunscreen.

Fitzpatrick typeDescriptionBurns after
Type I Always burns, never tans 11 min
Type II Burns easily, tans minimally 13 min
Type III Burns moderately, tans gradually 19 min
Type IV Burns minimally, tans well 24 min
Type V Rarely burns, tans profusely 32 min
Type VI Never burns, deeply pigmented 53 min

UV through the day

UV index by month and hour in Asia/Kuwait local time, daylight saving included. Darker cells mean stronger UV.

UV index by month (rows) and local hour (columns). Each cell shows the rounded value; blank means zero.
Month456789101112131415161718192021
Jan 1 2 4 4 4 3 2 1
Feb 1 3 5 6 6 5 3 2
Mar 1 3 5 7 8 8 7 5 2 1
Apr 2 4 7 9 11 10 9 6 3 1
May 1 3 5 8 11 12 11 10 7 4 2
Jun 1 3 6 9 11 12 12 10 7 4 2
Jul 1 3 5 8 11 13 12 11 8 5 2 1
Aug 1 2 5 8 11 12 12 10 7 4 2
Sep 2 4 7 9 11 10 8 5 3 1
Oct 1 3 5 7 8 7 6 3 1
Nov 2 3 5 5 5 4 2 1
Dec 1 2 4 4 4 3 2

none strongest

Other cities in Kuwait

Assumptions

  • Clear sky. These are upper bounds. Cloud reduces UV, though less than people expect — you can burn on an overcast day.
  • No reflection. Snow roughly doubles your effective dose, and water and sand both add to it. None of that is modelled here.
  • Burn times are indicative. Published minimal erythemal doses vary by around 30% between studies, and individuals within a skin type vary more.
  • SPF assumes proper application. Most people apply a quarter of the amount used in testing, so real protection is far lower than the label.

Full methodology, sources and known limitations