UV Index in Sheffield, United States

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents of Sheffield, United States, as it plays a vital role in protecting skin health and preventing sunburn. With Sheffield's climate characterized by hot summers and moderate UV exposure, awareness of daily UV levels can help you enjoy the outdoors safely. During peak hours, particularly between 10 AM and 2 PM, UV Index readings can soar to as high as 10, indicating a high risk of harm from unprotected sun exposure. Staying informed about these levels empowers you to take necessary precautions, ensuring a safe and enjoyable experience in the sun.

Hourly UV Index in Sheffield

The UV Index data unveils a dynamic progression of sun intensity throughout the day. Starting low at 1 at 07:00, the index gradually escalates, reaching maximum levels of 10 between 12:00 and 14:00. This peak signals a critical time for sun protection. As the afternoon wanes, the index tapers off to 8 at 15:00, and then descends further to 3 by 17:00, and 2 by 18:00. Ultimately, the day concludes softly with a return to 1 at 19:00. It's essential to stay vigilant during those peak hours to safeguard your skin while enjoying the sun!

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	6	high	25 min
11:00	8	very high	15 min
12:00	10	very high	15 min
13:00	10	very high	15 min
14:00	10	very high	15 min
15:00	8	very high	15 min
16:00	6	high	25 min
17:00	3	moderate	30 min
18:00	2	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Sheffield

Throughout the year, UV exposure varies significantly, with the highest risk months occurring from April to September when the index reaches very high to extreme levels. Specifically, June stands out with a UV Index of 11, where a mere 10 minutes of unprotected sun exposure can lead to skin damage. In contrast, during the winter months of January and February, the UV Index remains lower, categorized as moderate, allowing for a safer 30-minute burn time. Visitors and residents are advised to take necessary precautions during high-risk months, such as applying broad-spectrum sunscreen, wearing protective clothing, and seeking shade during peak sunlight hours, to minimize their risk of UV-related skin damage.

Monthly Maximum UV Index for Sheffield, United States

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

The table above highlights how UV exposure in Sheffield 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.

Sheffield'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
Sheffield	3	5	6	8	9	11	10	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