UV Index in Karlovo, Bulgaria

Last updated: August 1, 2025

In Karlovo, Bulgaria, being aware of the UV Index is crucial for maintaining skin health and preventing sunburn. Understanding UV levels helps residents and visitors alike to take necessary precautions, especially when the sun is at its peak from late morning to early afternoon. With a Dfb climate, Karlovo experiences variable weather, but during sunny days, UV exposure can become intense, reaching a high of 10 around noon. Stay informed and protect your skin while enjoying the beautiful outdoors!

Hourly UV Index in Karlovo

As the sun rises, the UV Index gradually climbs, beginning at a mild 1 at 7:00 AM. By 9:00 AM, it reaches 3, prompting early risers to consider sun protection. The intensity peaks at 1:00 PM with a maximum of 10, signaling the most hazardous conditions for unprotected skin. As the afternoon unfolds, the index dips from 9 at 2:00 PM to 6 by 4:00 PM, offering a brief respite. As the day winds down, the UV rays decrease, falling to 2 by 6:00 PM and returning to a safe 1 by 7:00 PM. Stay mindful of these fluctuations to enjoy the sun while safeguarding your skin!

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
08:001low45 min
09:003moderate30 min
10:004moderate30 min
11:006high25 min
12:008very high15 min
13:009very high15 min
14:009very high15 min
15:008very high15 min
16:006high25 min
17:004moderate30 min
18:002low45 min
19:001low45 min

Monthly UV Index Trends in Karlovo

Throughout the year, UV exposure varies significantly, with the highest risk months falling between April and August. During this peak period, the UV Index reaches very high levels of 8 to 10, resulting in a burn time of just 15 minutes. From March to August, individuals should take extra precautions, such as wearing sunscreen, protective clothing, and seeking shade during peak hours. In contrast, the UV Index is at its lowest in January and December, categorized as low with a burn time of 45 minutes. Visitors and residents should stay vigilant during high-risk months and take proactive measures to safeguard their skin from UV damage.

Monthly Maximum UV Index for Karlovo, Bulgaria

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Karlovo. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec34789101097532
Data source: Statistical UV Index data for Karlovo, 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 Karlovo UV Index with Other Bulgaria Cities

The table above highlights how UV exposure in Karlovo compares to other major locations across Bulgaria. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.
Karlovo's solar exposure compared to other cities in Bulgaria. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Ruse UVI246789997532
Varna UVI246789997532
Burgas UVI246799997532
Plovdiv UVI2468910997632
Sofia UVI24779101097632
Karlovo24789101097632