UV Index in Fairfield, United States

Last updated: May 3, 2025

Understanding the UV Index is crucial for residents of Fairfield, United States, as it empowers you to protect your skin while enjoying the sunny BSk climate. With peak UV levels reaching as high as 9 during midday, awareness of these values can be vital in preventing sunburn and maintaining long-term skin health. Familiarizing yourself with daily UV exposure risks enables you to take necessary precautions—like applying sunscreen or seeking shade—thus allowing you to enjoy the vibrant outdoors safely. Remember, the sun's rays can be deceptively strong, making it essential to stay informed and proactive!

Hourly UV Index in Fairfield

As the day unfolds, the UV Index rises steadily, peaking at 9 between 1:00 PM and 2:00 PM, indicating a very high risk of harm from unprotected sun exposure. The morning sees a gentle start with a maximum of 3 at 9:00 AM, climbing to 6 by 11:00 AM. By noon, it escalates to 8, warning sun-seekers to take precautions. The afternoon remains intense before gradually decreasing, hitting 4 by 5:00 PM and returning to a minimal 1 by 7:00 PM. It’s a day to embrace the sun wisely, staying protected during those peak hours when UV rays are fiercest!

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
12:008very high15 min
13:009very high15 min
14:009very high15 min
15:008very high15 min
16:006high25 min
17:004moderate30 min
18:002low45 min
19:001low45 min

Monthly UV Index Trends in Fairfield

Throughout the year, the UV Index exhibits significant seasonal variations, influencing the risk of skin damage from sun exposure. January and December experience the lowest UV levels, categorized as low, with a burn time of 45 minutes. As spring arrives, February and March see a moderate increase, reaching a UV Index of 3 and 5 respectively, with burn times dropping to 30 minutes. The UV Index peaks in May and June, reaching 9 and 10, signifying very high exposure risk and a reduced burn time of only 15 minutes. July and August maintain this high risk, while September sees a decrease to a high category with a UV Index of 7 and a burn time of 25 minutes. October and November return to moderate levels, allowing for burn times of 30 minutes once again. Visitors and residents are advised to take precautionary measures during high-risk months, especially from April to August, by utilizing sunscreen, wearing protective clothing, and seeking shade to minimize the risk of skin damage.

Monthly Maximum UV Index for Fairfield, United States

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Fairfield. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec2357910997532
Data source: Statistical UV Index data for Fairfield, 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 Fairfield UV Index with Other United States Cities

The table above highlights how UV exposure in Fairfield 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.
Fairfield's solar exposure compared to other cities in United States. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Fairfield2357910997532
Chicago UVI34689101098642
Brooklyn UVI35681010998642
New York City UVI35681010998642
Los Angeles UVI46891011111010754
Houston UVI589111112121110975