UV Index in Tropic, United States

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents and visitors in Tropic, United States, where the sun's rays can be particularly intense. Being aware of UV levels not only helps in preventing sunburn but also plays a vital role in maintaining long-term skin health. With a Cfb climate that can bring high UV exposure, particularly during peak hours—when the index can soar to a level of 13—it’s essential to stay informed. Keep your skin safe and enjoy the beautiful sun-filled days in Tropic by monitoring the UV Index and taking appropriate precautions!

Hourly UV Index in Tropic

As the day unfolds, the UV Index begins its gradual ascent, starting at a modest 1 by 7:00 AM and creeping up to 2 by 8:00 AM. By 9:00 AM, it reaches 3, but the real intensity kicks in around 10:00 AM with a stark 6. The peak occurs at noon, where the index skyrockets to a blistering 11, signaling a high risk for unprotected skin. The sun's rays maintain their ferocity until 1:00 PM, with a maximum of 13, before slightly tapering off. The afternoon sees a gradual decline, with values dropping to 8 by 4:00 PM and settling to a safer 3 by 6:00 PM. As dusk approaches, the index retreats back to 1 by 7:00 PM, offering a reminder of the day’s intense solar exposure. Be sure to seek shade and protect your skin during those peak hours!

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	13	extreme	10 min
14:00	13	extreme	10 min
15:00	11	extreme	10 min
16:00	8	very high	15 min
17:00	5	moderate	30 min
18:00	3	moderate	30 min
19:00	1	low	45 min

Monthly UV Index Trends in Tropic

Throughout the year, the UV Index exhibits significant seasonal variations, with the highest levels occurring from March to August. Notably, May, June, and July record extreme UV Index values of 12 and 13, indicating a burn time of just 10 minutes—making these months particularly high-risk for skin damage. Visitors and residents are advised to take necessary precautions during these high-risk months, including wearing protective clothing, applying broad-spectrum sunscreen, and seeking shade during peak sunlight hours. As we transition into late fall and winter, the UV Index drops to moderate levels in January, November, and December, with burn times increasing to 30 minutes; however, UV protection remains important year-round.

Monthly Maximum UV Index for Tropic, United States

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

The table above highlights how UV exposure in Tropic 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.

Tropic'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
Tropic	4	7	8	10	12	12	13	11	10	7	5	4
Houston UVI	5	8	9	11	11	12	12	11	10	9	7	5