UV Index in Marialva, Brazil

Last updated: May 3, 2025

In Marialva, Brazil, staying informed about the UV Index is crucial for safeguarding your skin health and preventing sunburn. With the region's Cfa climate, which brings warm summers and ample sunshine, understanding the daily UV levels can significantly influence your outdoor activities. For example, peak UV exposure typically occurs between 11:00 AM and 1:00 PM, when the index can soar to 8—indicating a higher risk of harm from unprotected sun exposure. By keeping a close eye on the UV Index, residents and visitors alike can take proactive measures to enjoy the sun safely while minimizing the risk of skin damage.

Hourly UV Index in Marialva

As the day breaks, the UV Index gradually rises, peaking at a robust 8 at 12:00 PM, signaling the sun's intensity is at its highest. Starting from a mild 1 at 07:00 AM and 08:00 AM, the UV levels steadily climb, hitting 5 by 10:00 AM. By 11:00 AM, a brisk 7 indicates that sun safety measures are essential. The intensity slightly declines after noon, tapering off to 6 at 2:00 PM, and then gradually decreases to a 4 by 3:00 PM. By evening, the UV Index drops back to a mere 1 at 5:00 PM and ultimately falls to 0 after 6:00 PM, signaling a safe return home as the sun sets. Keep this UV pattern in mind for outdoor activities to protect your skin and enjoy the day!

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	1	low	45 min
09:00	3	moderate	30 min
10:00	5	moderate	30 min
11:00	7	high	25 min
12:00	8	very high	15 min
13:00	7	high	25 min
14:00	6	high	25 min
15:00	4	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 Marialva

During the year, UV levels fluctuate significantly, with particularly high-risk months occurring from January to April and September to November. Notably, these months have an extreme UV Index of 15-11, with a very short burn time of just 10 minutes. The UV Index starts to decrease in May and July, where it shifts to a very high and high exposure category, allowing for slightly longer burn times of 15 to 25 minutes. August sees a rise again before returning to extreme levels in September and October. Visitors and residents should take precautionary measures during high UV months: wear sunscreen, protective clothing, and hats, and seek shade when outside, especially during midday hours to reduce the risk of skin damage.

Monthly Maximum UV Index for Marialva, Brazil

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

The table above highlights how UV exposure in Marialva 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.

Marialva'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
Marialva	15	15	13	11	8	6	7	9	11	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