UV Index in Arendal, Norway

Last updated: July 2, 2025

Understanding the UV Index in Arendal, Norway, is essential for safeguarding your skin health. As the sun rises higher, so too does the potential for harmful UV radiation, which can lead to painful sunburn and long-term skin damage. With Arendal's Cfb climate, characterized by mild summers and variable weather, it's crucial to stay informed about daily UV levels, especially during peak hours from 12 PM to 3 PM when the index can reach a high of 6. By being aware of these fluctuations, you can take proactive measures to protect yourself and enjoy the beauty of Norway’s outdoors safely.

Hourly UV Index in Arendal

At dawn, the UV Index begins its gentle ascent, peaking at 1 by 7:00 AM. As the sun rises higher, the index climbs steadily: reaching 2 at 8:00 AM, it hits 3 by 9:00 AM. The golden hour of 10:00 AM is marked with a 4, and by 11:00 AM, it surges to 5, indicating moderate exposure. The midday sun showcases its strength, with a maximum of 6 between 12:00 PM and 3:00 PM – a clear signal for sun protection! As the afternoon wanes, the index gradually declines, dropping to 3 at 5:00 PM, and finally tapering off to 1 by 7:00 PM, as the sun sets. Remember, during those peak hours, staying protected is essential!

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

Monthly UV Index Trends in Arendal

The UV Index experiences notable seasonal fluctuations, peaking during the summer months. From January to February, the index remains low (1-2), allowing for a burn time of 45 minutes without substantial risk. As spring arrives in March and April, the index rises to a moderate level (3-4), decreasing the burn time to 30 minutes. The summer months of June and July are particularly high-risk, with UV levels reaching 7; it’s crucial for visitors and residents to limit sun exposure to just 25 minutes during this time. August sees a slight decrease to 6, but caution remains essential. As fall approaches, the index drops back to moderate (4 in September) and again to low levels (2-1) from October to December, allowing for longer safe exposure times of 45 minutes. Visitors and residents are strongly advised to protect themselves during high-risk months (June to August) with proper clothing, sunscreen, and shade, while maintaining awareness of changing UV levels throughout the year.

Monthly Maximum UV Index for Arendal, Norway

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Arendal. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec123557664211
Data source: Statistical UV Index data for Arendal, 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 Arendal UV Index with Other Norway Cities

The table above highlights how UV exposure in Arendal compares to other major locations across Norway. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.
Arendal's solar exposure compared to other cities in Norway. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Trondheim UVI112456653211
Bergen UVI113457654211
Oslo UVI123457754211
Drammen UVI123457754211
Stavanger UVI113467654211
Arendal123457764211