UV Index in Junction, United States

Last updated: June 2, 2025

Understanding the UV Index is crucial for residents of Junction, United States, where the unique Dfb climate can lead to varying UV exposure levels throughout the day. As the sun rises, so do the risks of sunburn and long-term skin health issues, making it essential to monitor daily UV levels. At peak times, particularly around midday when the index can soar to 12, understanding these numbers helps you take proactive measures to protect your skin. With more hours of sunshine and the potential for intense UV radiation, being informed about the UV Index is key to enjoying the outdoors safely and responsibly.

Hourly UV Index in Junction

As the sun rises, the UV Index starts low at 1 at 07:00, gradually climbing to 2 by 08:00. The intensity surges as the day progresses, peaking at 12:00 with an impressive 11. The sun reaches its zenith at 13:00 and 14:00, where the UV Index hits 12, signaling the strongest rays of the day. A gentle decline follows, with values dropping to 5 by 17:00 and settling at 1 once again by 19:00. For optimal sun protection, it's wise to take precautions during the midday hours, especially between 10:00 and 15:00, when the UV Index poses a significant risk. Remember, skin safety is paramount under the blazing 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
10:006high25 min
11:009very high15 min
12:0011extreme10 min
13:0012extreme10 min
14:0012extreme10 min
15:0011extreme10 min
16:008very high15 min
17:005moderate30 min
18:003moderate30 min
19:001low45 min

Monthly UV Index Trends in Junction

The UV Index experiences notable seasonal changes throughout the year, reaching its peak during the summer months. April through August are considered high-risk months for UV exposure, with indices consistently at 11-12, categorizing them as extreme. In these months, the burn time is reduced significantly to just 10 minutes, underscoring the need for protective measures. As the year transitions into fall, the UV Index begins to decline, with October and November still maintaining a high rating of 6-7. To ensure safety, both residents and visitors should be vigilant during the high-risk months by seeking shade, wearing protective clothing, and applying broad-spectrum sunscreen regularly. In contrast, during January and December, when the UV Index drops to 4, the risk is lower, allowing for more leisurely outdoor activities without as much concern for sunburn.

Monthly Maximum UV Index for Junction, United States

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Junction. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec479111112121110764
Data source: Statistical UV Index data for Junction, 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 Junction UV Index with Other United States Cities

The table above highlights how UV exposure in Junction 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.
Junction'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
Junction479111112121110764
Houston UVI589111112121110975