UV Index in Ennis, United States

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents of Ennis, United States, where the Dfb climate brings distinct seasonal variations and potential for high sun exposure. Being aware of UV levels can help prevent sunburn and protect your skin health, as even a short time in the sun can lead to harmful effects when UV indexes rise. With peak UV readings reaching as high as 11 during midday, it’s essential to stay informed and take appropriate precautions to enjoy the sunny outdoors safely.

Hourly UV Index in Ennis

The UV Index throughout the day reveals a notable trend, starting at a calm 1 at 7:00 AM and gradually climbing to its peak of 11 during the peak afternoon hours of 1:00 PM and 2:00 PM. As the sun climbs higher in the sky, the intensity of ultraviolet radiation increases, reaching a sharp rise to 10 by noon, signaling caution for outdoor activities. After the early afternoon, the index begins to decline, drifting down to 5 by 5:00 PM and tapering off to a gentle 1 by 7:00 PM. This data highlights the importance of sun safety, particularly during the mid-day hours when UV exposure is at its strongest. Remember to wear protective clothing and sunscreen when the UV Index rises!

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	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	7	high	25 min
17:00	5	moderate	30 min
18:00	3	moderate	30 min
19:00	1	low	45 min

Monthly UV Index Trends in Ennis

Throughout the year, UV Index levels experience significant fluctuations, with high-risk months typically falling between March and August. During this period, the UV Index can reach extremes, peaking at 12 in June, which indicates a very high to extreme exposure category. Residents and visitors should take caution, especially in April and May, where the burn time is notably reduced to just 15 to 10 minutes, respectively. As the season transitions towards the end of the year, the UV Index gradually decreases, offering a reprieve in November and December with index levels dropping to 4 and 2, making sun exposure less risky. It is advisable for everyone to wear sunscreen, protective clothing, and seek shade during peak sun hours from March through August to minimize skin damage and ensure safe outdoor activities.

Monthly Maximum UV Index for Ennis, United States

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

The table above highlights how UV exposure in Ennis 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.

Ennis'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
Ennis	3	5	7	9	11	12	11	10	9	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