UV Index in Cotulla, United States

Last updated: May 3, 2025

Understanding the UV Index is crucial for residents of Cotulla, Texas, where the warm, semi-arid climate exposes us to significant sun radiation, especially during peak hours. The UV levels soar to a maximum of 12 around midday, indicating a high risk for sunburn and potential long-term skin damage if protective measures aren't taken. Awareness of these levels can empower you to safeguard your skin health and enjoy the sunny days without worry. As the weather warms up, staying informed about local UV exposure risks can make a critical difference in your sun safety routine.

Hourly UV Index in Cotulla

The UVI data reveals a clear pattern of increasing sun intensity throughout the morning and into the afternoon. Starting at a mild 1 at 07:00 and 08:00, the UV Index gradually rises to level 2 by 09:00. A rapid surge occurs, peaking at an intense 12 between 13:00 and 14:00, perfect for sunbathers seeking rays. However, this level of exposure requires caution, as the UVI begins to decline in the late afternoon, dropping to 5 by 17:00 and settling back to 1 by 19:00. To stay safe while enjoying the sun, it’s best to seek shade or wear protection during the peak hours from 11:00 to 15:00.

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

Monthly UV Index Trends in Cotulla

Throughout the year, UV levels exhibit significant seasonal changes. January sees a moderate UV Index of 5, while February and March jump to 8 and 9, respectively, indicating very high exposure risks with short burn times of just 15 minutes. The peak months for UV exposure are from April to August, where the Index reaches an extreme level of 11 to 12, necessitating caution with a burn time of only 10 minutes. As the year progresses, UV levels decrease, but October remains notably high at 9, followed by November with a high category of 7. For visitors and residents alike, it is crucial to take protective measures during the high-risk months of April through September and remain vigilant, using sunscreen, wearing protective clothing, and seeking shade to minimize the risk of skin damage.

Monthly Maximum UV Index for Cotulla, United States

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

The table above highlights how UV exposure in Cotulla 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.

Cotulla'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
Houston UVI	5	8	9	11	11	12	12	11	10	9	7	5
Cotulla	5	8	9	11	11	12	12	12	11	9	7	5