UV Index in Bialystok, Poland

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents of Bialystok, Poland, as it plays a significant role in safeguarding your skin health and preventing sunburn. With its Dfb climate, Bialystok experiences seasonal variations in sunlight and UV exposure, making it essential to know when to take extra precautions. On sunny days, UV levels can peak at 7 around midday—nearly reaching the level where skin damage can occur within minutes. By staying informed about UV levels, you can enjoy the outdoors while protecting yourself against harmful ultraviolet rays.

Hourly UV Index in Bialystok

The UV Index throughout the day showcases a noteworthy progression, peaking sharply during the midday hours. Starting at a modest 2 by 7:00 AM, the index steadily rises, reaching 4 by 9:00 AM. As the sun climbs higher, the intensity surges to a strong 7 from 11:00 AM to 2:00 PM, indicating a significant risk of harm from unprotected sun exposure. Thankfully, the levels taper off in the afternoon, dropping to 5 at 3:00 PM and settling back to 2 by 5:00 PM. Even as daylight wanes, the UV Index remains low, with values of 1 by 6:00 PM and 7:00 PM—ideal for evening outdoor activities. Remember to take precautions during the peak hours to enjoy the sun safely!

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
07:002low45 min
08:003moderate30 min
09:004moderate30 min
10:006high25 min
11:007high25 min
12:007high25 min
13:007high25 min
14:007high25 min
15:005moderate30 min
16:004moderate30 min
17:002low45 min
18:001low45 min
19:001low45 min

Monthly UV Index Trends in Bialystok

As the seasons transition, the UV Index experiences notable fluctuations, peaking during the summer months. January and February present low risk with a UV Index of 1 and 2, allowing for extended exposure without significant concern. However, from March to August, the risk escalates, with high to very high levels in May (UV Index 6) and June (UV Index 8), making these the highest-risk months for UV exposure. Visitors and residents alike should take precautions during this period, especially in June, where the burn time decreases to just 15 minutes. Meanwhile, September and October see a decline back to the moderate category, while November and December return to low risk, presenting safer conditions for prolonged outdoor activities. It's essential to stay informed and practice sun safety, particularly from March through August, by wearing sunscreen, protective clothing, and seeking shade when necessary.

Monthly Maximum UV Index for Bialystok, Poland

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Bialystok. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec124568775321
Data source: Statistical UV Index data for Bialystok, 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 Bialystok UV Index with Other Poland Cities

The table above highlights how UV exposure in Bialystok compares to other major locations across Poland. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.
Bialystok's solar exposure compared to other cities in Poland. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Bialystok124568775321
Warsaw UVI124568875321
Poznan UVI124578876321
Lodz UVI124578876321
Wroclaw UVI124578876321
Krakow UVI224678876421