UV Index in Vargem Alta, Brazil

Last updated: July 2, 2025

Staying informed about the UV Index in Vargem Alta, Brazil is crucial for maintaining skin health and preventing sunburn. Understanding UV levels helps residents and visitors alike to take the necessary precautions when enjoying the region's beautiful, sunny climate. With Vargem Alta’s tropical savanna climate (Aw), peak UV exposure occurs between 10 AM and 2 PM, where the index can reach as high as 8. By being aware of these fluctuations, you can enjoy your time outdoors while protecting your skin from harmful UV radiation.

Hourly UV Index in Vargem Alta

As the sun rises, the UV Index begins its ascent, starting at a gentle 1 by 7:00 AM. By 8:00 AM, it nudges up to 2, signaling a mild increase in UV exposure. The intensity heats up quickly, reaching a moderate 4 by 9:00 AM, before hitting its peak of 8 from 11:00 AM to 12:00 PM. This is the prime time for sun safety awareness! After noon, the UV Index gradually declines; by 3:00 PM, it recedes to 3, and as the day wanes, it drops significantly to 1 by 4:00 PM. By evening, UV levels have diminished, reaching 0 by 6:00 PM, offering a reprieve from the sun’s rays.

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	8	very high	15 min
13:00	7	high	25 min
14:00	5	moderate	30 min
15:00	3	moderate	30 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