UV Index in Dover, United States

Last updated: July 2, 2025

Understanding the UV Index in Dover, United States is crucial for maintaining skin health and preventing sunburn. As residents and visitors enjoy the Dfb climate, characterized by warm summers and cold winters, the UV levels can reach alarming heights—peaking at 9 during midday. This makes it essential to monitor UV exposure, especially from 10:00 AM to 2:00 PM, when the risk for skin damage is highest. By staying informed about the UV Index, you can take proactive steps to protect yourself and ensure your time outdoors is both enjoyable and safe.

Hourly UV Index in Dover

The UV Index today presents a notable climb as the sun ascends, peaking at 9 around noon and early afternoon, signaling very high sun exposure risk. Starting gently at 1 by 7 AM, the index rises steadily, reaching 6 by 10 AM and then surging to its maximum of 9 between 12 PM and 1 PM. Early afternoon brings a slight decline to 8 at 2 PM, followed by a gradual decrease through the later hours, settling back to 1 by 7 PM. With this trajectory, it's crucial to take precautions during the peak hours of 11 AM to 1 PM, ensuring skin protection against harmful UV rays. Stay safe and enjoy the sun wisely!

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
09:004moderate30 min
10:006high25 min
11:008very high15 min
12:009very high15 min
13:009very 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 Dover

Throughout the year, seasonal changes in the UV Index play a significant role in sun safety for residents and visitors. The highest risk months occur from April to August, with UV Index readings peaking at 10 in May and June, indicating very high exposure levels and a burn time of just 15 minutes. In contrast, winter months like January and February present a moderate risk, with UV Index figures around 3 to 4 and longer burn times of 30 minutes. As such, it is crucial for everyone to stay informed about local UV levels, particularly during the spring and summer months, using proper sun protection measures such as sunscreen, hats, and protective clothing to minimize the risk of skin damage.

Monthly Maximum UV Index for Dover, United States

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Dover. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec34681010997532
Data source: Statistical UV Index data for Dover, 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 Dover UV Index with Other United States Cities

The table above highlights how UV exposure in Dover compares to other major locations across United States. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.
Dover's solar exposure compared to other cities in United States. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Dover34681010997632
Chicago UVI34689101098642
Brooklyn UVI35681010998642
New York City UVI35681010998642
Los Angeles UVI46891011111010754
Houston UVI589111112121110975