INDEX OF BIOLOGICAL ACTIVE ULTRAVIOLET RADIATION
| Check how long you can stand under direct sun rays and what type protective lotion you should use |
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Clear sky 
Middle cloudiness
High cloudiness, rain,
snowSofia- centre
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UV index measured for |
UV index tomorrow |
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Vitosha- Golden Bridges
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UV index measured for |
UV index tomorrow |
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Shcorpilovci, Black Sea Coast- Institute of Oceanology - BAS
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UV index measured for |
UV index tomorrow |
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Weather information: The Weather Channel - weather.com
The UV index is a measure of the intensity of ultraviolet radiation on the Earth's surface that is relevant to effects on the human skin. Geophysical Institute BAS reports UV index values, measured every hour in Sofia-Centre, Vitosha-Golden Bridges, Shkorpilovtsi-Black Sea Research base of Institute of Oceanology BAS and the relevant forecast for the next day. For more information you can download the practical guide Global Solar UV index (in English) [PDF]