UV Index in Hayden, United States

Last updated: July 2, 2025

In Hayden, United States, being aware of the UV Index is crucial for maintaining skin health and preventing sunburns. As summer approaches, understanding UV levels not only helps you enjoy the outdoors safely but also protects against long-term skin damage. With Hayden’s climate classified as Dfc, residents face varying UV exposure risks throughout the day. Notably, between 11 AM and 2 PM, the UV Index reaches its peak, soaring to levels of 11 and 12, putting you at heightened risk. Stay informed and take the necessary precautions to keep your skin safe under the sun!

Hourly UV Index in Hayden

The UV Index showcases a dynamic rise and fall throughout the day, peaking impressively at 12 between 1:00 PM and 2:00 PM. Starting at a gentle 1 at 7:00 AM, the index steadily climbs, reaching 9 by 11:00 AM. The sun's intensity culminates at 11 by noon, before hitting its highest point at 12. A gradual decline follows, with readings of 10 at 3:00 PM, dropping to 4 by 5:00 PM, and tapering off to 1 once again by 7:00 PM. This data serves as a crucial reminder to take precautions during peak hours for optimal sun safety.

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	2	low	45 min
09:00	4	moderate	30 min
10:00	7	high	25 min
11:00	9	very high	15 min
12:00	11	extreme	10 min
13:00	12	extreme	10 min
14:00	12	extreme	10 min
15:00	10	very high	15 min
16:00	7	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 Hayden

As the seasons change, so do the UV index levels, indicating varying sun exposure risks throughout the year. The months of March through August present the highest risk, with UV Index values reaching extreme levels (11-13), where even minimal sun exposure can lead to skin damage in as little as 10 minutes. Notably, April and May are particularly concerning, featuring a maximum UV Index of 12. Visitors and residents should take extra precautions during these high-risk months, such as seeking shade, wearing protective clothing, and applying broad-spectrum sunscreen liberally. Conversely, during the winter months of December and January, the UV Index drops to a more moderate range (3-4), allowing for relatively safer outdoor activities, though caution is still advised. Always stay informed and protect your skin from harmful UV rays year-round.

Monthly Maximum UV Index for Hayden, United States

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Hayden. 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 Hayden, 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 Hayden UV Index with Other United States Cities

The table above highlights how UV exposure in Hayden 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.

Hayden'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
Hayden	4	6	9	11	12	13	12	11	10	7	5	3
Houston UVI	5	8	9	11	11	12	12	11	10	9	7	5