UV Index in Vienna, Austria

Last updated: May 3, 2025

In Vienna, Austria, being aware of the UV Index is crucial for safeguarding your skin health amidst the city's charming ambiance. Understanding UV levels can be the difference between enjoying the sun's warmth and facing painful sunburns or long-term skin damage. With its Cfb climate, Vienna experiences fluctuating UV exposure, particularly peaking during midday hours when the UV Index reaches as high as 8. Stay informed to protect yourself and enjoy the beautiful outdoors without the worry of harmful sun effects!

Hourly UV Index in Vienna

The UV Index throughout the day exhibits a clear peak around midday. Starting from a low of 1 at 07:00, the intensity gradually escalates, hitting 3 by 09:00 and reaching its zenith of 8 at 13:00. As the sun climbs higher, the UV Index stands at 7 at 12:00, indicating a strong potential for skin damage without protection. The intensity starts to dip after 14:00, descending to 6 by 15:00, and further declining to 1 by 18:00, where it remains until sunset. This hourly data underscores the importance of sun protection during the peak hours of 11:00 to 14:00, ensuring safety while enjoying outdoor activities!

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
TimeUVICategoryTime to Burn
07:001low45 min
08:002low45 min
09:003moderate30 min
10:005moderate30 min
11:006high25 min
12:007high25 min
13:008very high15 min
14:007high25 min
15:006high25 min
16:004moderate30 min
17:003moderate30 min
18:001low45 min
19:001low45 min

Monthly UV Index Trends in Vienna

Throughout the year, the UV Index exhibits significant seasonal variations, with the highest levels occurring from May to July, categorized as very high with a burn time of just 15 minutes. April marks the transition into higher UV exposure, registering a UV Index of 6 and a high exposure category. Conversely, the winter months of January, November, and December remain in the low exposure category, with burn times up to 45 minutes. Visitors and residents should be particularly cautious during the high-risk months of May, June, and July, when it is crucial to seek shade, wear protective clothing, and apply sunscreen regularly to minimize the risk of skin damage. As the UV Index decreases in the fall and winter, vigilance can be relaxed, but some level of sun protection remains advisable year-round.

Monthly Maximum UV Index for Vienna, Austria

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Vienna. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec235688876421
Data source: Statistical UV Index data for Vienna, based on information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

Compare Vienna UV Index with Other Austria Cities

The table above highlights how UV exposure in Vienna compares to other major locations across Austria. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.
Vienna's solar exposure compared to other cities in Austria. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Vienna235688876421
Linz UVI235689986421
Graz UVI235689986431
Salzburg UVI236789986432
Innsbruck UVI24779101097532