Monthly Average UV Index
International UV Index Pages
The websites listed below have UV Index average values for locations around the world. These are all non-EPA sitesAustralia
TEMIS (Tropospheric Emission Monitoring Internet Service)
(These maps give clear sky UV Index, which does not account for cloudiness.)
Cires' Links to UV Index Pages
(This site has links to numerous country-specific UV Index sites.)
Accu Weather's Gloabl UV Index Forecasts
(This site has UV Index forecasts for every region of the world.)
The ozone layer shields the Earth from harmful UV radiation. Seasonal and weather variations cause different amounts of UV radiation to reach the Earth at any given time.
The maps below show monthly average UV radiation intensity for the United States. The average amount of UV radiation is given in terms of the UV Index, a scale of 1-11+ developed by the National Weather Service and EPA to help people choose sun-protective behaviors.