UV Index in Una, Brazil

Last updated: July 2, 2025

Understanding the UV Index is crucial for the residents and visitors of Una, Brazil, where the climate is tropical and sun exposure is a daily reality. With UV levels peaking at a high of 9 around noon, awareness of these fluctuations can make a significant difference in sunburn prevention and overall skin health. During a typical day, the UV Index can escalate quickly, posing risks especially from late morning to early afternoon. Staying informed about the UV Index helps ensure that you enjoy the beautiful, sunny days in Una while protecting your skin from harmful effects.

Hourly UV Index in Una

The UV Index for today showcases a striking peak between 11:00 AM and 12:00 PM, where it reaches a high of 9, indicating a high risk of harm from unprotected sun exposure. As the day progresses, the index begins to taper off, transitioning to a 5 at 2:00 PM and then dropping further to 3 by 3:00 PM. The late afternoon brings a noticeable decline, finishing off with 1 at 4:00 PM and fading to 0 after 6:00 PM. If you're planning outdoor activities, the optimal time to soak up the sun safely is definitely before noon! Don’t forget your sunscreen during those peak hours!

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	5	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 Una

The UV Index displays significant seasonal fluctuations, with the highest levels occurring during the winter and early spring months. From January to April, the UV Index peaks at 14-15 and is categorized as extreme, indicating a very short burn time of just 10 minutes. As temperatures rise, May through July see a slight decrease in intensity, dropping to a very high range of 8-10 but still necessitating caution with burn times extending to 15 minutes. In August and September, the UV Index escalates back to extreme, peaking again in November and December. Visitors and residents should exercise extreme caution during these high-risk months, particularly from January to April and August to November, ensuring they use sun protection measures such as sunscreen, hats, and protective clothing when exposed to sunlight.

Monthly Maximum UV Index for Una, Brazil

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

The table above highlights how UV exposure in Una 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.

Una'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
Una	14	15	14	13	10	8	9	11	12	14	15	15
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