UV Index in Vandalia, United States

Last updated: June 2, 2025

In Vandalia, United States, awareness of the UV Index is crucial for protecting your skin and ensuring overall health. Understanding UV levels helps residents take necessary precautions against sunburn and long-term skin damage, particularly on sunny days when the UV Index can soar. Vandalia’s Cfa climate brings warm, humid summers, making it essential to stay vigilant about UV exposure. From late morning to early afternoon, UV levels peak at a high of 11, indicating a significant risk of harm from unprotected sun exposure. Make informed choices to enjoy the outdoors safely!

Hourly UV Index in Vandalia

The UV Index steadily climbs as the day progresses, starting from a mild 1 at 7:00 AM and reaching a peak of 11 by 1:00 PM. Sun-seekers and outdoor enthusiasts should be mindful, as the index hits a high of 10 at 12:00 PM, signaling significant UV exposure. After this peak, the index gradually decreases, dropping to 8 by 3:00 PM, and continuing to decline to 1 by 7:00 PM. For safe sun enjoyment, it’s best to take precautions during those high UV hours, particularly between 11:00 AM and 2:00 PM. Remember to sport your hats and sunscreen!

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	9	very high	15 min
12:00	10	very high	15 min
13:00	11	extreme	10 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 Vandalia

As the seasons change, so do the UV Index levels, which indicate the potential for skin damage due to sun exposure. The high-risk months for UV exposure are April through August, with the index peaking at 11 during May and June, categorized as extreme and requiring a burn time of just 10 minutes. Visitors and residents should take special precautions, such as wearing sunscreen, protective clothing, and seeking shade during peak sunlight hours. As the year progresses, UV levels gradually decline, lowering the risk in the fall and winter months, but vigilance is still advised with peak UV values in March (6) and October (6). Remember, even in moderate months like January and December, protective measures should still be considered, as longer exposure can still lead to skin damage.

Monthly Maximum UV Index for Vandalia, United States

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

The table above highlights how UV exposure in Vandalia 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.

Vandalia'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
Vandalia	3	5	6	9	11	11	10	9	8	6	4	3
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