UV Index in Hamilton, United States

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents of Hamilton, United States, where the climate often leads to variable exposure levels. High UV radiation can cause sunburn, premature aging, and increase the risk of skin cancer, making it essential to monitor daily UV levels. Hamilton typically experiences a Cfa climate, with summer months bringing significant UV exposure—peaking at 12 around noon. By staying informed about the UV Index, you can take proactive steps to protect your skin and enjoy the sunshine safely!

Hourly UV Index in Hamilton

The UV Index data reveals a sharp rise in ultraviolet radiation as the day progresses. Starting from a low of 1 at 7:00 AM, it remains mild until 9:00 AM, when it climbs to 3. The peak occurs at 1:00 PM with an intense 12, signaling a critical need for sun protection. Following the peak, the index gradually declines, dropping to 8 by 4:00 PM and further dwindling to 1 by 7:00 PM. It's a vivid reminder that as the sun rises, so does the potential for sun exposure; take precautions during those midday hours!

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
09:003moderate30 min
10:005moderate30 min
11:007high25 min
12:0010very high15 min
13:0012extreme10 min
14:0012extreme10 min
15:0010very high15 min
16:008very high15 min
17:005moderate30 min
18:002low45 min
19:001low45 min

Monthly UV Index Trends in Hamilton

Throughout the year, the UV Index experiences significant fluctuations, with the highest readings occurring from March to August. During April and May, the index peaks at 10 and 11, categorized as very high and extreme, respectively, resulting in a burn time as short as 10 minutes. The most high-risk months for UV exposure are typically from March to August, when precautions should be taken seriously. Visitors and residents are advised to use sunscreen, wear protective clothing, and seek shade, especially during peak hours from 11 a.m. to 4 p.m. In contrast, the months of January and December feature lower UV levels (UV Index of 4), indicating a moderate risk where exposure is less concerning, although protection is still recommended. Staying informed about the UV index can significantly reduce risks associated with sun exposure throughout the year.

Monthly Maximum UV Index for Hamilton, United States

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Hamilton. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec478101212121110864
Data source: Statistical UV Index data for Hamilton, 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 Hamilton UV Index with Other United States Cities

The table above highlights how UV exposure in Hamilton 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.
Hamilton'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
Hamilton478101112121110864
Houston UVI589111112121110975