UV Index in Sao Miguel, Brazil

Last updated: May 3, 2025

Understanding the UV Index is crucial for residents and visitors of Sao Miguel, Brazil, where sun exposure can significantly impact skin health. This enchanting island, located in the temperate climate zone, experiences varying UV levels throughout the day, peaking around midday with an index of 13. By being aware of these UV levels, individuals can take proactive measures to prevent sunburn and long-term skin damage, ensuring a healthier outdoor experience. With typical summer days ushering in high UV rays, knowing when to seek shade and apply sunscreen can make all the difference in protecting your skin while you enjoy the beautiful landscapes of Sao Miguel.

Hourly UV Index in Sao Miguel

The UV Index offers a clear picture of sun exposure throughout the day. Starting off low at 7:00 AM with a UV Index of 2, the intensity quickly ramps up by 8:00 AM to 5. The sun reaches its peak strength at 11:00 AM, hitting a striking 13 before gradually tapering off. By 1:00 PM, the index drops to 9, continuing its descent through the afternoon with values of 6 at 2:00 PM and 3 at 3:00 PM. As the day winds down, UV levels decrease significantly, settling at 1 by 4:00 PM and dropping to 0 after 6:00 PM. It's essential to stay protected during the peak hours from 10:00 AM to 2:00 PM when the risk of UV exposure is highest!

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	2	low	45 min
08:00	5	moderate	30 min
09:00	8	very high	15 min
10:00	11	extreme	10 min
11:00	13	extreme	10 min
12:00	12	extreme	10 min
13:00	9	very high	15 min
14:00	6	high	25 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 Sao Miguel

Throughout the year, the UV Index remains consistently high, peaking at 15 in March. The highest risk months for UV exposure are from January to April and November to December, where the UV Index consistently ranges from 14 to 15, indicating an extreme exposure category with a burn time of only 10 minutes. It's essential for both visitors and residents to take precautionary measures during these months, such as wearing sunscreen, protective clothing, and seeking shade during peak sunlight hours. Even during the summer months, with UV levels at 11 to 13, vigilance against skin damage is crucial. Regular monitoring of the UV Index and proper sun safety practices can help mitigate health risks associated with high UV exposure.

Monthly Maximum UV Index for Sao Miguel, Brazil

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

The table above highlights how UV exposure in Sao Miguel 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.

Sao Miguel'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
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
Sao Miguel	14	14	15	14	13	11	11	12	13	13	14	14
Fortaleza UVI	14	14	15	15	13	11	11	12	13	13	13	13