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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 for Today
(15-minute mean updated every 15 minutes)

16/08/2018 (Hong Kong Time)

UV Index Curve

UV Index at :00
(past hourly mean)

Forecast maximum UV Index for tomorrow will be available after 5p.m.

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