UV Index in Tracy, United States

Last updated: May 3, 2025

Understanding the UV Index in Tracy, United States, is crucial for protecting your skin and overall health. With peak UV levels soaring to 9 in the afternoon, awareness of these readings can help prevent painful sunburns and long-term skin damage. Tracy's Dfa climate presents a unique challenge, where sunny days can lead to elevated UV exposure risks. Staying informed about UV levels empowers residents to take necessary precautions, ensuring safe outdoor activities while safeguarding skin wellness.

Hourly UV Index in Tracy

The UV Index today shows a dynamic rise and fall throughout the hours, peaking in the midday sun. Starting from a gentle 1 at 07:00, it gradually climbs to reach 8 by 12:00, just before the sun reaches its zenith. The intensity spikes to its highest point of 9 at 13:00, remaining high until 14:00, when it begins to taper off. By 15:00, it drops to 7, continuing its downward trend to 4 by 17:00, and then easing back to the safer 1 by 19:00. Remember to protect yourself during the peak hours, especially between 11:00 and 14:00, when the sun’s rays are strongest!

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	3	moderate	30 min
10:00	5	moderate	30 min
11:00	7	high	25 min
12:00	8	very high	15 min
13:00	9	very high	15 min
14:00	9	very high	15 min
15:00	7	high	25 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 Tracy

Throughout the year, the UV Index exhibits significant seasonal variation, with the highest levels occurring during the late spring and summer months. April marks the start of this high-risk season with a UV Index of 8, classified as very high with a burn time of just 15 minutes. This peak intensity continues through June when the UV Index reaches 10, before slightly decreasing in September. Notably, May, June, July, and August are critical months where the UV Index remains consistently at 9 or 10, posing a considerable risk for sunburn and skin damage. As a precaution, visitors and residents are strongly advised to protect themselves during these months by seeking shade, wearing protective clothing, and applying sunscreen, particularly during peak sun hours. In contrast, the UV Index significantly drops in the fall and winter, with January, February, and March presenting moderate risks, and December experiencing a low UV index, making sun protection less critical during that time.

Monthly Maximum UV Index for Tracy, United States

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

The table above highlights how UV exposure in Tracy 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.

Tracy'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
Tracy	3	5	5	8	9	10	9	9	8	5	3	2
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
Houston UVI	5	8	9	11	11	12	12	11	10	9	7	5