UV Index in Troy, United States

Last updated: May 3, 2025

Understanding the UV Index in Troy, United States is crucial for protecting your skin and overall health. With UV levels peaking at 9 during midday, awareness of these readings can help prevent sunburn and reduce long-term skin damage. Troy’s Csb climate means you'll face varying UV exposure risks throughout the year, particularly from late spring to early fall. Staying informed about the UV Index not only helps you enjoy the outdoors safely but also promotes healthier skin for years to come.

Hourly UV Index in Troy

The UV Index for today presents an intriguing journey through the hours. It starts off gently at 1 at 07:00, but as the morning progresses, it climbs swiftly to 2 by 08:00 and reaches a moderate 4 at 09:00. The sun intensifies its rays further, peaking at a robust 9 between 12:00 and 13:00—a reminder to take precautions against harmful UV exposure. Following this peak, the index gradually descends, dipping to 6 at 15:00, and mellowing down to 1 by 18:00. This pattern highlights the importance of seeking shade or applying sunscreen during the midday hours when UV radiation is most potent.

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	8	very high	15 min
12:00	9	very high	15 min
13:00	9	very high	15 min
14:00	8	very high	15 min
15:00	6	high	25 min
16:00	4	moderate	30 min
17:00	3	moderate	30 min
18:00	1	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Troy

As the seasons change, so too do the UV index levels, impacting sun safety for residents and visitors alike. From January to February, the UV index begins at a low of 2 and rises to a moderate 4, with recommended burn times decreasing from 45 minutes to 30 minutes. March to August marks the high-risk months for UV exposure, with indices peaking at 10 in July, characterized by very high exposure levels and a burn time of just 15 minutes. It is crucial to take precautions during this period, such as wearing sunscreen, protective clothing, and seeking shade whenever possible. As we transition into September through December, the UV index gradually declines, with levels dropping to a low 2 again in December. However, the high-risk months of May through August particularly emphasize the need for vigilance against overexposure to UV rays. Always prioritize sun safety as the UV index fluctuates throughout the year.

Monthly Maximum UV Index for Troy, United States

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

The table above highlights how UV exposure in Troy 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.

Troy'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
Troy	2	4	6	7	9	9	10	9	7	5	3	2
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
Houston UVI	5	8	9	11	11	12	12	11	10	9	7	5