UV Index in Prague, Czech Republic

Last updated: July 2, 2025

Understanding the UV Index in Prague, Czech Republic is crucial for protecting your skin and overall health. As the sun's rays intensify, so do the risks of sunburn and long-term skin damage. With Prague's temperate climate, afternoon UV levels can reach a peak of 8 during the summer months, highlighting the importance of awareness. By monitoring UV exposure, you can take proactive steps to enjoy the city's beautiful sights while safeguarding your skin against harmful effects. Stay informed and enjoy Prague's sunny days safely!

Hourly UV Index in Prague

As the sun rises, the UV Index begins its ascent, starting at a mere 1 at 7:00 AM. By 8:00 AM, it climbs to 2, but it’s by 9:00 AM that we see a moderate rise to 3. The intensity peaks between 11:00 AM and 1:00 PM, hitting a high of 8, indicating that sun protection methods should be in full swing. As the afternoon progresses, values slightly decrease, with the UV Index dropping to 6 by 3:00 PM and then gradually retreating to 1 by 7:00 PM. This hourly data serves as a reminder to stay vigilant about sun safety during the mid-day hours when UV exposure is at its highest.

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
11:007high25 min
12:008very high15 min
13:008very high15 min
14:008very high15 min
15:006high25 min
16:005moderate30 min
17:003moderate30 min
18:002low45 min
19:001low45 min

Monthly UV Index Trends in Prague

Throughout the year, the UV Index exhibits significant seasonal changes, reflecting varying risks associated with sun exposure. The months of May through August are particularly high-risk, with UV Index values reaching 7 (high) and 8 (very high), resulting in shorter burn times of 15 to 25 minutes. Visitors and residents should take extra precautions during this period, such as wearing sunscreen, protective clothing, and sunglasses, especially between 10 AM and 4 PM. As the year transitions to September and October, UV levels decrease moderately but still warrant caution until they drop to low levels in November and December, where burn times increase back to 45 minutes. Staying informed and adopting preventative measures is essential to avoid skin damage and enjoy the outdoors safely year-round.

Monthly Maximum UV Index for Prague, Czech Republic

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Prague. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec234678876421
Data source: Statistical UV Index data for Prague, 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 Prague UV Index with Other Czech Republic Cities

The table above highlights how UV exposure in Prague compares to other major locations across Czech Republic. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.
Prague's solar exposure compared to other cities in Czech Republic. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Prague234578876421
Ostrava UVI224678876421
Olomouc UVI234678876422
Pilsen UVI235688876421
Brno UVI235688876422