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UV Index Forecast
UV Radiation Information

 Notes:
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 forecast
UV index forecast for today / tomorrow

Bulletin updated at 17:01HKT 21/Sep/2018

The maximum UV Index for tomorrow will be about 10. The intensity of UV radiation will be very high.

UV index for today


Points to Note:
  • The Observatory issues an UV index forecast for the next day at 5:00 p.m. every day. The forecast will be updated as necessary in case of weather changes, till 10:00 a.m. the next day.
Last revision date: <21 Sep 2018>