UV Index in Vargem Alta, Brazil

Last updated: June 2, 2025

Understanding the UV Index in Vargem Alta, Brazil is essential for safeguarding your skin and overall health. With its tropical Aw climate, residents and visitors alike should be aware of the sun's intensity throughout the day. At peak hours, especially between 11:00 AM and 1:00 PM, the UV Index can soar to a level of 7, signifying a high risk of harm from unprotected sun exposure. Prolonged exposure without proper protection can lead to painful sunburns and increase the risk of long-term skin damage. By keeping track of UV levels, you can take proactive measures to enjoy the beautiful outdoors while protecting your skin.

Hourly UV Index in Vargem Alta

The UV Index data paints a clear picture of how exposure to ultraviolet rays varies throughout the day. Starting at a low level of 1 at 07:00, the index gradually climbs to peak at 7 from 11:00 to 12:00, indicating the times when sun protection is most crucial. As the afternoon progresses, the index dips to 6 at 13:00, then gently declines to 4 by 14:00. The evening hours see a significant drop, with values falling to 2 at 15:00 and retreating to 1 at 16:00. By nightfall, the UV Index drops to 0 from 18:00 onward, signalling a safe time for outdoor activities without the need for sun protection. Enjoy the sunshine, but be mindful of the 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	5	moderate	30 min
11:00	7	high	25 min
12:00	7	high	25 min
13:00	6	high	25 min
14:00	4	moderate	30 min
15:00	2	low	45 min
16:00	1	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 Vargem Alta

Throughout the year, UV index levels exhibit significant variability, particularly during the summer months. High-risk months for UV exposure are predominantly from January to April and September to November, displaying extreme levels with indices ranging from 14 to 16 and a burn time of just 10 minutes. May, July, and August also present very high UV levels, with indices between 9 and 10 and a burn time of 15 minutes. Visitors and residents should take precautionary measures during these months, including wearing protective clothing, applying sunscreen regularly, and seeking shade during peak hours. Being mindful of UV exposure is essential to ensure safety and prevent sunburn throughout the year.

Monthly Maximum UV Index for Vargem Alta, Brazil

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

The table above highlights how UV exposure in Vargem Alta 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.

Vargem Alta'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
Sao Paulo UVI	16	15	12	11	8	6	7	9	11	13	14	15
Vargem Alta	16	15	14	11	9	7	8	10	12	14	15	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