UV Index in Maryland Heights, United States

Last updated: August 1, 2025

Understanding the UV Index is crucial for residents of Maryland Heights to protect themselves from harmful sun exposure. With high UV levels peaking around noon, knowing when to seek shade or apply sunscreen can significantly reduce the risk of sunburn and long-term skin damage. Maryland Heights, characterized by its humid subtropical climate, experiences intense sunlight, especially during summer months, making UV Index awareness vital for maintaining skin health. As you enjoy outdoor activities, keep an eye on the UV Index readings throughout the day to ensure you're taking the necessary precautions against ultraviolet radiation.

Hourly UV Index in Maryland Heights

The UV Index data unveils a dynamic progression of sun intensity throughout the day. Starting low at 1 at 07:00, the index gradually escalates, reaching maximum levels of 10 between 12:00 and 14:00. This peak signals a critical time for sun protection. As the afternoon wanes, the index tapers off to 8 at 15:00, and then descends further to 3 by 17:00, and 2 by 18:00. Ultimately, the day concludes softly with a return to 1 at 19:00. It's essential to stay vigilant during those peak hours to safeguard your skin while enjoying the sun!

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
11:007high25 min
12:009very high15 min
13:009very high15 min
14:009very high15 min
15:007high25 min
16:005moderate30 min
17:003moderate30 min
18:001low45 min
19:001low45 min

Monthly UV Index Trends in Maryland Heights

Throughout the year, seasonal UV changes indicate varying levels of sun exposure risk. The high-risk months are from April to September, with UV Index values reaching very high to extreme levels, particularly in June when the UV Index peaks at 11. Visitors and residents should take necessary precautions during these months, such as seeking shade, wearing protective clothing, and using sunscreen with a high SPF. In contrast, January, February, November, and December present a moderate exposure risk, allowing for more extended sun exposure times of up to 30 minutes without significant risk of burning. It's essential to remain vigilant year-round and adjust sun protection strategies based on the UV Index to maintain skin health.

Monthly Maximum UV Index for Maryland Heights, United States

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Maryland Heights. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec356910111098643
Data source: Statistical UV Index data for Maryland Heights, 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 Maryland Heights UV Index with Other United States Cities

The table above highlights how UV exposure in Maryland Heights 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.
Maryland Heights'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
Maryland Heights3569101110109643
Los Angeles UVI46891011111010754
Houston UVI589111112121110975