UV Index in Henderson, United States

Last updated: June 2, 2025

In Henderson, United States, being aware of the UV Index is crucial for protecting your skin and overall health. Understanding UV levels helps you prevent sunburn, reduce the risk of skin cancer, and maintain youthful skin. With a Cfa climate, Henderson experiences significant UV exposure, especially during the peak hours around midday, where the index can soar to 11. This makes it essential for residents and visitors alike to stay informed about daily UV levels and take appropriate precautions when enjoying the beautiful sunny days that Henderson has to offer.

Hourly UV Index in Henderson

As the sun ascends, the UV Index begins to climb, marking a significant shift in the day's exposure. Starting with a gentle 1 at 07:00 and 08:00, the index surges to 3 by 09:00. However, the real intensity kicks in around 10:00, where it reaches 6. The peak occurs at 12:00 and 13:00, with a blazing 10 and a scorching 11, making it essential to take precautions against sun exposure. As the afternoon progresses, the intensity starts to wane, dropping to 9 at 15:00 and then cascading down to 6 by 16:00. By evening, UV exposure diminishes significantly, settling back to 2 at 18:00 and down to 1 by 19:00. Remember, during the midday hours, staying protected is key to enjoying the sunshine safely!

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.
Time	UVI	Category	Time to Burn
07:00	1	low	45 min
08:00	1	low	45 min
09:00	3	moderate	30 min
10:00	6	high	25 min
11:00	8	very high	15 min
12:00	10	very high	15 min
13:00	11	extreme	10 min
14:00	11	extreme	10 min
15:00	9	very high	15 min
16:00	6	high	25 min
17:00	4	moderate	30 min
18:00	2	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Henderson

Throughout the year, UV Index values exhibit notable seasonal changes, with high-risk months primarily between March and August. During these months, the UV Index peaks at 11-12, indicating an extreme exposure category, which reduces burn times to just 10 minutes. Visitors and residents should take extra precautions during these months by wearing protective clothing, applying broad-spectrum sunscreen, and seeking shade during peak sun hours. Conversely, from January to February and November to December, the UV Index fluctuates between 4 and 7, classified as moderate to high, allowing for a longer burn time of 25 to 30 minutes. Awareness of these seasonal variations is crucial for ensuring skin safety while enjoying outdoor activities year-round.

Monthly Maximum UV Index for Henderson, United States

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Henderson. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.

Data source: Statistical UV Index data for Henderson, 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 Henderson UV Index with Other United States Cities

The table above highlights how UV exposure in Henderson 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.

Henderson's solar exposure compared to other cities in United States. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Chicago UVI	3	4	6	8	9	10	10	9	8	6	4	2
Brooklyn UVI	3	5	6	8	10	10	9	9	8	6	4	2
New York City UVI	3	5	6	8	10	10	9	9	8	6	4	2
Los Angeles UVI	4	6	8	9	10	11	11	10	10	7	5	4
Henderson	4	7	8	10	11	12	11	11	10	8	6	4
Houston UVI	5	8	9	11	11	12	12	11	10	9	7	5