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Print Version
 
UV Index for Today
(15-minute mean updated every 15 minutes)

UV Index Curve
Hong Kong Time


UV Index (updated every hour)

Date: 07/09/2008
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.

 

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

 

UV Index forecast

 



UV Index and exposure level
 
UV Index 
Exposure Level
0 - 2 
Low 
3 - 5 
Moderate 
6 - 7 
High 
8 - 10 
Very High 
greater or equal symbol11 
Extreme 
Source : The World Health Organization

The UV Index indicates the strength of the UV radiation (Click here to see the definition of the UV Index). The higher the number, the stronger the UV radiation.

 


Protective Measures against UV Radiation
  • To reduce the harm from UV radiation, the most important thing is to minimize direct exposure of the skin and the eyes to sunlight.
  • On days when the UV Index is high, you should avoid staying outdoors for prolonged periods.
  • If you must be out in the sun, take the following precautions:
UVI logo
Check what the latest UV Index is.
hat
Wear a broad brim hat.
tree
Seeking shade under a tree.
sunglasses
Wear UV blocking sunglasses.
umbrella
Use an umbrella.
sunscreen lotion
Use a broad-spectrum sunscreen lotion blocking both UVA and UVB (with a Sun Protection Factor (SPF) of 15 or above for UVB). Apply liberally and reapply after swimming or sweating.
clothes
Wear long-sleeved and loose-fitting clothing.    


Click here for the "Global Solar UV Index - a Practical Guide" (pdf file)


Department of Health

For more health information related to UV, please visit the webpages of the Central Health Education Unit and the Centre of Health Protection of the Department of Health.


 2003 | Important notices | Privacy policy Last revision date: <7 Sep 2008>