UV Index in Santa Maria da Boa Vista, Brazil

Last updated: August 1, 2025

In Santa Maria da Boa Vista, Brazil, being aware of the UV Index is crucial for ensuring your skin's health and preventing sunburn. The UV levels, which peak dramatically at noon, underscore the importance of taking precautions during the day. With a hot semi-arid climate, locals and visitors alike should be vigilant of the risks posed by high UV exposure, especially between 10 AM and 2 PM, when levels soar to a staggering 11. By understanding these levels and practicing sun safety, you can enjoy the sun while safeguarding your skin.

Hourly UV Index in Santa Maria da Boa Vista

The UV Index for the day showcases a striking peak between 11:00 AM and 12:00 PM, reaching a maximum of 11, indicating extreme sun exposure risk. As the sun climbs higher, the index ascends from a mild 1 at 7:00 AM to a sizzling 10 by 11:00 AM. The intensity starts to wane after noon, dropping to 9 at 1:00 PM, then gradually descending to 6 by 2:00 PM, and cooling off to 4 by 3:00 PM. As evening sets in, the index dips back down to 1 by 4:00 PM, before falling to 0 after 6:00 PM. Staying protected during those peak hours is crucial for skin safety!

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	4	moderate	30 min
09:00	7	high	25 min
10:00	10	very high	15 min
11:00	12	extreme	10 min
12:00	12	extreme	10 min
13:00	10	very high	15 min
14:00	7	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 Santa Maria da Boa Vista

The UV Index varies throughout the year, consistently remaining at extreme levels with values mainly between 11 and 15. Notably, March and November represent the peak months with a UV Index of 15, accompanied by a dangerously short burn time of only 10 minutes. Residents and visitors should exercise vigilance from January through December, as every month presents a high risk for sunburn due to the extreme exposure category. It is crucial to take precautions by wearing appropriate sunscreen, protective clothing, and seeking shade during peak sunlight hours to mitigate the risk of UV-related skin damage.

Monthly Maximum UV Index for Santa Maria da Boa Vista, Brazil

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Santa Maria da Boa Vista. 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 Santa Maria da Boa Vista, 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 Santa Maria da Boa Vista UV Index with Other Brazil Cities

The table above highlights how UV exposure in Santa Maria da Boa Vista 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.

Santa Maria da Boa Vista'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
Fortaleza UVI	14	14	15	15	13	11	11	12	13	13	13	13
Santa Maria da Boa Vista	14	14	15	14	12	11	11	12	13	14	15	14