UV Index in Lucas, Brazil

Last updated: July 2, 2025

In Lucas, Brazil, staying informed about the UV Index is crucial for maintaining skin health and preventing sunburn. With an Aw climate, characterized by warm temperatures and ample sunshine, residents face varying UV exposure risks throughout the day. Understanding the UV levels can empower individuals to protect themselves effectively, especially during peak times when the index reaches as high as 9 between 11:00 AM and 12:00 PM. By being aware of these daily fluctuations, you can enjoy the vibrant outdoor life of Lucas while safeguarding your skin against harmful UV radiation.

Hourly UV Index in Lucas

The UV Index rises and falls dramatically throughout the day, showcasing how the sun's intensity varies with time. Starting at a mild 1 at 7:00 AM, it gradually climbs to reach a peak of 9 between 11:00 AM and 12:00 PM, where sun protection is crucial. As the afternoon progresses, the index begins to dip — descending to 5 by 2:00 PM and tapering off to a safe 1 by 4:00 PM. Finally, the sun sets with the UV levels dropping to 0 after 6:00 PM, indicating it’s safe to enjoy the evening outdoors without worry. Stay vigilant during those midday hours to protect your skin!

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	7	high	25 min
11:00	9	very high	15 min
12:00	9	very high	15 min
13:00	8	very high	15 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 Lucas

The UV Index exhibits significant fluctuations throughout the year, with the highest levels occurring during the winter months. From January to April, the UV Index remains in the extreme category (15-16), indicating a burn time of just 10 minutes. As the year progresses, the index decreases slightly in May and June to a very high level of 10-8 (with a burn time of 15 minutes), but rises again in August and September, returning to extreme levels (11-14) from October to December. Visitors and residents should be particularly cautious during the high-risk months of January, February, March, and November, when the UV Index consistently reaches extreme levels. It’s essential to seek shade, wear protective clothing, and apply sunscreen appropriately during these peak periods to minimize the risk of sunburn and long-term skin damage.

Monthly Maximum UV Index for Lucas, Brazil

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

The table above highlights how UV exposure in Lucas 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.

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