UV Index in Paris, United States

Last updated: July 2, 2025

Understanding the UV Index in Paris, United States, is essential for protecting your skin and overall health. As UV levels fluctuate throughout the day, staying informed can significantly reduce your risk of sunburn and long-term skin damage. With a Cfa climate, Paris experiences warm summers where UV exposure can peak—reaching levels as high as 10 from late morning to early afternoon. By monitoring the UV Index, you can make informed decisions about outdoor activities and take necessary precautions, ensuring a safe and enjoyable experience under the sun.

Hourly UV Index in Paris

As the sun rises, the UV Index begins its gentle climb, starting at a modest 1 at 7:00 AM and 8:00 AM. By 9:00 AM, it nudges up to a 2, signaling the day is warming up. However, the intensity ramps up dramatically around 10:00 AM, peaking at 9 by 12:00 PM. The highest alert comes at 1:00 PM and 2:00 PM with a striking 10, indicating it’s time to seek shade and protect your skin. As the afternoon unfolds, the index recedes slowly, dropping to 5 by 5:00 PM and settling down to a safe 1 by 7:00 PM. Keep in mind, during peak hours, the sun's rays are most potent—stay safe and enjoy the sunshine wisely!

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	10	very high	15 min
14:00	10	very high	15 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 Paris

Throughout the year, the UV Index exhibits significant seasonal changes, peaking during the summer months. From March to September, the UV Index rises sharply, reaching a maximum of 10 during the summer, indicating very high exposure risk. The high-risk months for sun exposure are April through September, when burn times shorten to just 15 minutes. Residents and visitors are advised to take proper sun safety precautions during these months, including wearing protective clothing, using broad-spectrum sunscreen, and seeking shade during peak hours. As the UV Index lowers in October, November, and December, the burn times increase to 25-30 minutes, suggesting a decrease in risk but still warranting sun protection on sunny days.

Monthly Maximum UV Index for Paris, United States

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

The table above highlights how UV exposure in Paris 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.

Paris'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
Paris	3	5	7	9	10	10	10	10	8	6	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