UV Index in Marion, United States

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents of Marion, United States, where the climate is classified as Cfa, resulting in warm summers and moderate UV exposure. Being aware of UV levels helps you take proactive steps against sunburn and long-term skin health issues. With peak UV indices soaring to 11 during midday hours, it's essential to stay informed to protect yourself and your loved ones from harmful effects. By checking the UV Index regularly, you can enjoy the beautiful Marion outdoors while safeguarding your skin from overexposure.

Hourly UV Index in Marion

The UV Index today rises steadily from the early morning, reaching a peak of 11 at noon and maintaining that intensity through the early afternoon. Starting at a mild 1 at 7:00, it quickly escalates to 2 at 8:00, then 3 by 9:00. At 10:00, it hits 6, and by 11:00, it soars to 9, signaling a significant increase in UV exposure. As the sun reaches its zenith, the index stabilizes at an alarming 11 from 12:00 to 14:00, before gradually descending to 9 at 15:00, and tapering off in the evening to 4 by 17:00, finally returning to a safe 1 by 19:00. It's a day to embrace the sun while keeping sunscreen and protective gear close at hand!

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	6	high	25 min
11:00	9	very high	15 min
12:00	11	extreme	10 min
13:00	11	extreme	10 min
14:00	11	extreme	10 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 Marion

As the seasons change, so does the UV Index, which significantly impacts sun exposure and the risk of skin damage. January and December are generally safer months with a moderate exposure category (UV Index 4), allowing for about 30 minutes of burn time. However, by February, the risk rises to high (UV Index 7) with a burn time of 25 minutes. The peak risk occurs from March to August, where the index reaches extreme levels (UV Index 10-12), allowing only 10 minutes of sun exposure without protection. High-risk months also include April and May, which feature very high to extreme categories. September and October still present significant risks with very high levels (UV Index 8-9). For the safety of residents and visitors, it is crucial to wear sunscreen, seek shade, and limit sun exposure during these high-risk months, particularly from late winter through summer.

Monthly Maximum UV Index for Marion, United States

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

The table above highlights how UV exposure in Marion 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.

Marion'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
Marion	4	7	8	10	11	12	11	11	9	8	6	4
Houston UVI	5	8	9	11	11	12	12	11	10	9	7	5