UV Index in Graenna, Sweden

Last updated: June 2, 2025

Understanding the UV Index in Gränna, Sweden, is crucial for protecting your skin from harmful ultraviolet radiation. With UV levels peaking at index values of 7 during the mid-day hours, awareness can greatly aid in sunburn prevention and maintaining overall skin health. Gränna's temperate climate, characterized by warm summers and variable seasons, can lead to varying UV exposure risks, making it essential for residents and visitors alike to stay informed about daily UV levels. By knowing when to seek shade or apply sunscreen, you can enjoy the beauty of Gränna while safeguarding your skin from potential damage.

Hourly UV Index in Graenna

As the day unfolds, the UV Index begins at a modest 1 at 7:00 AM, indicating low sun exposure. By 9:00 AM, it rises to a 3, signaling a gentle increase in UV rays. The sun reaches its peak intensity around noon, with the index hitting 7—a reminder to stay protected. From 12:00 PM to 2:00 PM, the index holds steady at this elevated level, ideal for sun safety measures. As the afternoon progresses, the UV Index gradually declines: 6 at 3:00 PM, then tapering to 2 by 6:00 PM, and finally back to 1 by 7:00 PM. It’s a clear reminder that while the sun’s power peaks early in the day, it’s essential to stay aware of UV exposure throughout.

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

Monthly UV Index Trends in Graenna

Throughout the year, seasonal UV Index changes indicate varying levels of sun exposure risk. In the low-risk months of January, February, October, November, and December, the UV Index remains between 1 and 2, allowing for a safer burn time of 45 minutes. As spring approaches, March sees a moderate UV Index of 3, reducing safe exposure to 30 minutes. The high-risk months of May through August, with UV Index values between 6 and 7, demand more caution as burn times drop to 25 minutes. September transitions back to moderate levels, while the cycle returns to low risk by October. Visitors and residents are advised to monitor UV Index changes, especially during high-risk months, by applying sunscreen, wearing protective clothing, and seeking shade to minimize skin damage.

Monthly Maximum UV Index for Graenna, Sweden

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Graenna. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec123567764211
Data source: Statistical UV Index data for Graenna, 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 Graenna UV Index with Other Sweden Cities

The table above highlights how UV exposure in Graenna compares to other major locations across Sweden. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.
Graenna's solar exposure compared to other cities in Sweden. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Sollentuna UVI123457754211
Uppsala UVI123457754211
Stockholm UVI123457754211
Graenna123567764211
Goeteborg UVI123567765211
Malmoe UVI123567765311