UV Index in Altania, Brazil

Last updated: June 2, 2025

In Altania, Brazil, understanding the UV Index is crucial for protecting your skin from harmful solar radiation. With a climate classified as Cfa, residents and visitors often experience high levels of UV exposure, particularly during peak hours from 11:00 AM to 1:00 PM when the UV Index can reach as high as 6. Being aware of these levels is essential not just for preventing sunburn, but also for maintaining overall skin health. By keeping an eye on the UV Index, you can enjoy the sunny days of Altania while effectively minimizing your risk of skin damage.

Hourly UV Index in Altania

The UV Index throughout the day presents a dynamic interplay of sunlight, peaking at 12:00 PM and 1:00 PM with a robust 6. Early risers will enjoy the gentle warmth with a UV Index of 0 at 7:00 AM, slowly climbing to 1 by 8:00 AM. As the morning progresses, it reaches 3 at 10:00 AM and then escalates to its highest at noon. Afternoon hours see a gradual decline, dipping back to 5 at 2:00 PM before gently dropping to 3 by 3:00 PM. As the sun sets, the index retreats below 1 from 5:00 PM onward, concluding with a soothing 0 at 6:00 PM and remaining steady until dusk. Make sure to stay protected during the peak hours, especially when the sun's rays are at their strongest!

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	0	low	45 min
08:00	1	low	45 min
09:00	2	low	45 min
10:00	3	moderate	30 min
11:00	5	moderate	30 min
12:00	6	high	25 min
13:00	6	high	25 min
14:00	5	moderate	30 min
15:00	3	moderate	30 min
16:00	2	low	45 min
17:00	1	low	45 min
18:00	0	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Altania

During the year, UV levels vary significantly, with the highest risk of exposure occurring in the winter and late fall months; notably, January, February, September, October, November, and December each present an extreme UV Index of 15, 14, or 13, suggesting a burn time of only 10 minutes. In the spring, while UV levels begin to decrease, April still reflects an extreme category with a UV Index of 11, requiring vigilant sun protection. As we transition into summer, the UV Index drops slightly with values of 6 to 9, considered high to very high, allowing for slightly longer exposure (up to 25 minutes in June and July), yet caution remains essential. Visitors and residents alike should prioritize sun safety by wearing sunscreen, hats, and protective clothing, especially during the high-risk months that feature extreme UV levels.

Monthly Maximum UV Index for Altania, Brazil

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

The table above highlights how UV exposure in Altania compares to other major locations across Brazil. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.

Altania's solar exposure compared to other cities in Brazil. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Rio de Janeiro UVI	15	14	13	10	7	6	7	9	11	12	13	15
Altania	15	14	13	11	8	6	7	9	11	13	14	15
Sao Paulo UVI	16	15	12	11	8	6	7	9	11	13	14	15
Belo Horizonte UVI	17	16	14	12	9	7	8	10	12	13	14	16
Salvador UVI	14	14	14	13	10	9	9	12	12	15	15	14
Fortaleza UVI	14	14	15	15	13	11	11	12	13	13	13	13