UV Index in Cluj-Napoca, Romania

Last updated: May 3, 2025

In Cluj-Napoca, Romania, being aware of the UV Index is crucial for protecting your skin and overall health. Understanding UV levels helps you take proactive measures against sunburn and long-term skin damage, making it essential to monitor daily fluctuations. With a Dfb climate, residents and visitors alike experience varying levels of sun exposure, particularly during the summer months. Notably, UV Index readings in Cluj-Napoca can peak at 8 around midday, highlighting the need for effective sun protection strategies to enjoy the sunshine safely.

Hourly UV Index in Cluj-Napoca

As the sun rises, the UV Index begins at a low 1 at 07:00 and 08:00, making for a gentle start to the day. By 09:00, it climbs to 3, signaling the beginning of increased UV exposure. The index surges to 4 by 10:00, peaking at an impressive 8 from 13:00 to 14:00. This is the time for sun safety awareness, as the intensity hits 7 before gradually tapering off to 5 at 16:00 and descending to 1 by 19:00. For a day filled with outdoor activities, **it's essential to consider protective measures between 11:00 and 15:00, when the UV levels are at their highest. Stay safe and smart in the sun!

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
12:007high25 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 Cluj-Napoca

Throughout the year, UV Index levels show significant seasonal changes, with high-risk months occurring from April to August. During these months, the UV Index peaks at 9, indicating a very high exposure category during June and July, where the burn time is only 15 minutes. Visitors and residents should take caution, especially in May, June, July, and August, when skin protection measures are essential, such as using sunscreen, wearing protective clothing, and seeking shade. As summer transitions to fall, UV levels gradually decrease; however, moderate exposure levels in April and October warrant continued awareness. The lowest UV indexes are found in January and December, categorizing them as low risk with longer burn times of 45 minutes, offering a reprieve from sun-related hazards.

Monthly Maximum UV Index for Cluj-Napoca, Romania

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Cluj-Napoca. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec235689987432
Data source: Statistical UV Index data for Cluj-Napoca, 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 Cluj-Napoca UV Index with Other Romania Cities

The table above highlights how UV exposure in Cluj-Napoca 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.
Cluj-Napoca's solar exposure compared to other cities in Romania. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Iasi UVI235689987432
Cluj-Napoca235689987432
Timisoara UVI235689987532
Bucharest UVI235789987532
Craiova UVI236789987532