UV Index in Williamston, United States

Last updated: May 3, 2025

Understanding the UV Index is crucial for residents of Williamston, United States, where the Cfa climate brings warm summers that increase exposure to harmful ultraviolet rays. Awareness of UV levels helps in sunburn prevention and safeguarding your skin health, particularly during peak hours when the UV Index reaches 11, indicating very high risk. With typical exposure risks peaking around noon, it's essential to stay informed and take necessary precautions to protect yourself and your loved ones from potential sun damage.

Hourly UV Index in Williamston

The UV Index reveals a dynamic sun intensity throughout the day, peaking dramatically in the midday hours. Starting off at a mild 1 at 07:00 and 08:00, the UV Index begins to climb sharply, reaching 3 by 09:00. As the sun ascends, it escalates to 5 at 10:00 and surges to 10 by noon, marking a significant rise in solar exposure. The highlight of the day occurs at 13:00 with a staggering 11, indicating severe UV levels. Following this zenith, the index gradually dips, dropping to 9 by 15:00 and continuing downward to 2 by 18:00. Finally, as the day winds down, the UV Index returns to a low 1 by 19:00. This data underscores the importance of sun safety, particularly during those peak hours when protection is essential.

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

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 Williamston, United States

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

The table above highlights how UV exposure in Williamston 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.

Williamston'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
Williamston	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