UV Index in Porter, United States

Last updated: May 3, 2025

Understanding the UV Index in Porter, United States, is crucial for maintaining skin health and preventing sunburn. As a city located in a Cfa climate zone, Porter experiences varying UV exposure throughout the day, with levels peaking at 11 around midday. By staying informed about UV levels, residents can take necessary precautions, such as seeking shade, wearing protective clothing, and applying sunscreen, to safeguard their skin from harmful rays. With a typical summer sun that can quickly elevate UV exposure risks, being UV-aware is not just beneficial—it's essential for enjoying outdoor activities safely.

Hourly UV Index in Porter

The UV Index today exhibits a dramatic surge from the early morning hours, starting at a mild 1 at 07:00 and 08:00. However, by 09:00, it climbs to 3, signaling a gradual increase in sun exposure. The peak occurs at 12:00, where the index reaches an intense 10, prompting outdoor enthusiasts to take proper precautions. The highest recorded value of 11 at 13:00 indicates a critical level of sun intensity, making sunscreen a necessity. As the afternoon progresses, values decline, with the index dropping to 9 at 15:00, followed by a gentle descent to 4 by 17:00. The evening hours see a calming effect, with the UV Index returning to 1 by 19:00. It's a perfect reminder to enjoy the sun responsibly throughout the day!

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	8	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	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 Porter

Throughout the year, UV exposure varies significantly, with high-risk months primarily occurring from April to September. The UV Index peaks during June and July at 11, indicating an extreme risk of harm from unprotected sun exposure, where burn time is as short as 10 minutes. Early spring begins with moderate levels in January (UV Index 4) and escalates to very high levels in April (UV Index 10). As the summer progresses, residents and visitors should be especially cautious during peak hours, practicing sun safety measures such as wearing sunscreen, protective clothing, and seeking shade to reduce risk. As autumn approaches, UV levels decrease, dropping back to moderate levels by December, making it safer for prolonged outdoor activities.

Monthly Maximum UV Index for Porter, United States

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

The table above highlights how UV exposure in Porter 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.

Porter'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
Porter	4	6	7	10	10	11	11	10	9	7	5	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