UV Index in Bucharest, Romania

Last updated: May 3, 2025

Awareness of the UV Index is crucial for residents and visitors in Bucharest, Romania, where the combination of a Cfb climate and sunny days can increase exposure to harmful ultraviolet rays. Understanding UV levels is essential for preventing sunburn and maintaining long-term skin health. With midday UV Index readings peaking at 8, a high risk of skin damage exists, especially during the summer months when UV exposure is at its highest. By keeping an eye on the UV Index, you can enjoy the vibrant outdoor lifestyle of Bucharest while protecting your skin from potential harm.

Hourly UV Index in Bucharest

The UV index throughout the day reveals a fascinating pattern of sun intensity. Early risers will notice a gentle start at 1 around 7:00 AM, gradually climbing to a moderate 3 by 9:00 AM. As the sun reaches its peak, the index hits 6 at 11:00 AM, escalating to an impressive 8 from 12:00 PM to 2:00 PM—the height of solar exposure. After this, the UV levels begin to wane, dropping to 7 at 3:00 PM, and further decreasing to moderate numbers of 5, 3, and 2 as the sun sets, concluding the day with a calm 1 at 7:00 PM. Remember, during the peak hours, sun safety is crucial!

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

Monthly UV Index Trends in Bucharest

Throughout the year, the UV Index experiences significant seasonal changes, impacting sun exposure and burn times. January and December see low UV levels (Index 2), with burn times of 45 minutes, while February and November moderate (Index 3), reducing burn time to 30 minutes. As spring arrives, March (Index 5) indicates a moderate risk before transitioning to April's high level (Index 7) with a burn time of 25 minutes. The peak risk occurs in May and June, where the UV Index reaches 8 to 9, categorizing exposure as very high and necessitating protective measures within just 15 minutes of sun exposure. July continues this trend, while August sees a slight decrease to 8. The UV Index tapers off in September (Index 7), October (Index 5), and November (Index 3), before returning to low levels in December. Visitors and residents are advised to take extra precautions during May through August, including wearing protective clothing, applying sunscreen, and seeking shade during peak hours to minimize the risk of UV exposure.

Monthly Maximum UV Index for Bucharest, Romania

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Bucharest. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec235789987532
Data source: Statistical UV Index data for Bucharest, 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 Bucharest UV Index with Other Romania Cities

The table above highlights how UV exposure in Bucharest compares to other major locations across Romania. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.
Bucharest's solar exposure compared to other cities in Romania. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Iasi UVI235689987432
Cluj-Napoca UVI235689987432
Timisoara UVI235689987532
Bucharest235789987532
Craiova UVI236789987532