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UV Radiation Information
Notice:
Hong Kong Observatory has launched a new Ultraviolet (UV) Radiation Information Webpage in August 2018.  This webpage will be decommissioned on 31 October 2018.
Go to:
New UV Radiation Information webpage (desktop version)
New UV Radiation Information webpage (mobile version)


UV Index measured at the King's Park Meteorological Station
(15-minute mean updated every 15 minutes)
(Hong Kong Time)
 
UV Index Curve

UV Index (updated every hour)

Date: 19/12/2018
Hong Kong Time 8:00 9:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00
15-minute mean UV Index*
(ending on the hour)
                     
Hourly mean UV Index*                      
*Rounded to the nearest whole number when greater than 1.
'--' : data not available


The mean UV Index for today will be available after 6 p.m.



 

UV Index and exposure level

UV Index
Exposure Level
0-2
Low
3-5
Moderate
6-7
High
8-10
Very High
>= 11
Extreme

 

Last revision date: <19 Dec 2018>