UV Index in Marietta, United States

Last updated: July 2, 2025

In Marietta, United States, staying informed about the UV Index is crucial for safeguarding your skin against harmful ultraviolet rays. Understanding UV levels can significantly aid in sunburn prevention and promote long-term skin health, as exposure to high UV rays can lead to serious complications. With Marietta's Cfa climate, characterized by hot summers, residents face heightened UV exposure risks, particularly during midday hours when the index reaches its peak of 11. Take control of your sun safety—being UV aware can make all the difference in enjoying the outdoors while protecting your skin!

Hourly UV Index in Marietta

The UV Index (UVI) paints a clear picture of sun intensity throughout the day. Beginning at 07:00, the index registers a low 1, making it a safe time for early risers. As the sun climbs higher, the numbers take a dramatic turn: by 11:00, the UVI jumps to 7, signaling increased sun exposure. The peak occurs between 12:00 and 14:00, where it reaches an intense 11, urging caution for outdoor activities. The intensity gradually wanes after this peak, dropping to 5 by 17:00 and returning to a mild 1 once again by 19:00. Whether planning your day or heading outdoors, it's crucial to stay sun-smart during those peak hours!

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	4	moderate	30 min
11:00	7	high	25 min
12:00	9	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 Marietta

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 Marietta, United States

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

The table above highlights how UV exposure in Marietta 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.

Marietta'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
Marietta	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