UV Index in Firminopolis, Brazil

Last updated: June 2, 2025

In Firminópolis, Brazil, awareness of the UV Index is crucial for safeguarding your skin against harmful sun exposure. Given the town's tropical climate, understanding UV levels can significantly aid in preventing sunburns and promoting long-term skin health. Throughout the day, UV radiation peaks, especially from 10 AM to 2 PM, reaching levels as high as 8. With this knowledge, residents and visitors alike can take proactive measures to enjoy the sun safely while minimizing risks associated with UV exposure.

Hourly UV Index in Firminopolis

At dawn, the UV Index remains low, peaking at 1 by 08:00. As the sun rises higher, a notable increase occurs, reaching 3 at 09:00 and escalating dramatically to a maximum of 8 from 12:00 to 13:00. This midday surge indicates a higher risk for sun exposure, making it essential to take precautions such as wearing sunscreen and protective clothing. The intensity then gradually declines, dropping to 4 by 15:00, and continuing its descent to 0 by 19:00, marking the end of the sun’s peak influence for the day. Stay mindful of these hourly fluctuations to enjoy the sun safely!

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	8	very high	15 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 Firminopolis

The UV Index displays significant seasonal changes, highlighting extreme levels from January through April and November to December, with values reaching as high as 16, indicating a burn time of just 10 minutes. From May to July, while the index drops slightly, it remains in the very high category with burn times of 15 minutes; visitors and residents should be particularly cautious during these months. August and September see a return to extreme levels, emphasizing the importance of protective measures. In light of this data, it is crucial for individuals to seek shade, wear protective clothing, and apply broad-spectrum sunscreen during high-risk months, especially from January to April and October to December, to mitigate the risks associated with high UV exposure.

Monthly Maximum UV Index for Firminopolis, Brazil

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

The table above highlights how UV exposure in Firminopolis 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.

Firminopolis'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
Firminopolis	16	16	14	12	10	8	9	11	12	15	16	16
Fortaleza UVI	14	14	15	15	13	11	11	12	13	13	13	13