Jump to main content

Contact Us

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 sitesExit EPA Disclaimer

Australia Canada Hong Kong 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.

January Average UV Index
January Average UV Index
January Average UV Index
January Average UV Index
January Average UV Index
January Average UV Index
January Average UV Index
January Average UV Index
January Average UV Index
January Average UV Index
January Average UV Index
January Average UV Index

Contact the SunWise Web editor to ask a question, provide feedback, or report a problem.

Jump to main content.