UV Index in Trenton, United States

Last updated: May 3, 2025

In Trenton, United States, staying aware of the UV Index is crucial for protecting your skin and overall health. Understanding UV levels allows residents to take proactive measures against sunburn and long-term skin damage, especially during the warmer months when exposure peaks. With Trenton's humid subtropical climate, residents face varying UV exposure risks throughout the day. The UV Index can soar to 11 during midday, underscoring the need for vigilant sun protection and awareness to enjoy the outdoors safely.

Hourly UV Index in Trenton

The UV Index today presents a dynamic range of exposure as the sun climbs higher in the sky. Starting with a gentle maximum of 1 at 7:00 AM, the index gradually rises throughout the morning, reaching 2 by 9:00 AM. By 11:00 AM, the sun begins to unleash its intensity, peaking at 11 between 1:00 PM and 2:00 PM—a crucial time for sun safety measures. As the afternoon progresses, the index recedes to 7 by 4:00 PM and drops to 1 again by 7:00 PM. Remember to take precautions during the peak hours, especially from 12:00 PM to 2:00 PM, to shield yourself from harmful UV rays!

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
09:002low45 min
10:004moderate30 min
11:007high25 min
12:009very high15 min
13:0011extreme10 min
14:0011extreme10 min
15:009very high15 min
16:007high25 min
17:005moderate30 min
18:002low45 min
19:001low45 min

Monthly UV Index Trends in Trenton

Throughout the year, the UV Index fluctuates significantly, indicating varying levels of sun exposure risk. The highest risk months are from May to August, when the UV Index peaks at an extreme level of 11, allowing for a burn time of just 10 minutes. Notably, March and April also present high risks with indices reaching 8 and 10, respectively. Conversely, the winter months of January and December have a moderate UV Index of 4, with longer burn times of 30 minutes. To protect yourself during high UV months, it is essential for both visitors and residents to apply sunscreen regularly, wear protective clothing, and seek shade during peak sun hours, particularly from late spring through summer.

Monthly Maximum UV Index for Trenton, United States

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Trenton. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec46810111111119764
Data source: Statistical UV Index data for Trenton, 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 Trenton UV Index with Other United States Cities

The table above highlights how UV exposure in Trenton 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.
Trenton's solar exposure compared to other cities in United States. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Chicago UVI34689101098642
Brooklyn UVI35681010998642
New York City UVI35681010998642
Los Angeles UVI46891011111010754
Trenton46810111111119764
Houston UVI589111112121110975