UV Index in Waco, United States

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents of Waco, Texas, where intense sun exposure is common due to its humid subtropical climate. Being aware of UV levels not only helps in preventing sunburns but is also essential for maintaining long-term skin health. With peak UV readings reaching as high as 11 during the midday hours, the risks of overexposure are significant. By staying informed about the UV Index, Waco residents can better protect themselves and enjoy the sunny days safely.

Hourly UV Index in Waco

The UV Index for the day showcases a significant rise in solar intensity as the sun climbs higher in the sky. Starting at a low of 1 at 07:00 and 08:00, the index escalates to 2 by 09:00. A marked increase occurs between 10:00 and 12:00, where it jumps to 4 and peaks at a striking 9 at noon. The afternoon witnesses even higher levels, reaching a maximum of 11 at both 13:00 and 14:00, signifying a critical time for sun protection. As the sun begins to set, the index gradually declines to 5 at 17:00, and eventually returns to a safe 1 by 19:00. It’s essential to take precautions during those peak hours to safeguard against harmful UV exposure!

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	2	low	45 min
10:00	4	moderate	30 min
11:00	7	high	25 min
12:00	9	very high	15 min
13:00	11	extreme	10 min
14:00	11	extreme	10 min
15:00	10	very high	15 min
16:00	8	very high	15 min
17:00	5	moderate	30 min
18:00	3	moderate	30 min
19:00	1	low	45 min

Monthly UV Index Trends in Waco

As the seasons change, the UV Index demonstrates considerable variation, impacting burn potential and risk levels for skin exposure. The highest risk months occur from March to August, with values peaking at 11 during May, June, and July, indicating an extreme exposure category with a burn time of just 10 minutes. February marks a shift into a high risk category, while September through November gradually decreases the UV levels, transitioning back to moderate by December. It is crucial for visitors and residents alike to exercise caution during these high-risk months by wearing protective clothing, applying sunscreen regularly, and seeking shade to mitigate the potential for skin damage.

Monthly Maximum UV Index for Waco, United States

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

The table above highlights how UV exposure in Waco 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.

Waco'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
Waco	4	7	8	10	11	11	11	10	9	8	6	4
Houston UVI	5	8	9	11	11	12	12	11	10	9	7	5