UV Index in Barra de Sao Francisco, Brazil

Last updated: July 2, 2025

In Barra de São Francisco, Brazil, being aware of the UV Index is crucial for maintaining skin health and preventing sunburn. Understanding UV levels helps residents and visitors alike take necessary precautions to protect themselves from the sun’s harmful rays. With a warm climate typical of the Aw zone, Barra de São Francisco often experiences high UV exposure, particularly during midday hours when indices soar to 9—a level that necessitates effective sun safety measures. Stay informed and enjoy the sun while keeping your skin safe!

Hourly UV Index in Barra de Sao Francisco

The UV Index reveals a dynamic shift throughout the day, beginning with a mild level of 1 at 07:00. As the sun rises higher, it peaks dramatically at 12:00 with a robust 9, indicating high exposure risk for unprotected skin. This intensity continues until 13:00, where it dips to 7, before gradually declining throughout the afternoon. By 15:00, the index lowers to 3, providing a more moderate environment for outdoor activities. As the evening sets in, the UV Index drops quickly, finishing the day at 0 by 19:00. It’s a clear reminder of the sun’s powerful influence—stay protected during the 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	4	moderate	30 min
10:00	6	high	25 min
11:00	8	very high	15 min
12:00	9	very high	15 min
13:00	7	high	25 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 Barra de Sao Francisco

During the year, the UV Index exhibits pronounced seasonal fluctuations, with extreme levels persisting from January through April and again in August through November. The months of January, February, March, April, August, September, October, November, and December all fall within the extreme exposure category, necessitating vigilance, as the burn time is a mere 10 minutes. Conversely, May, June, and July experience a slightly lower yet still concerning UV Index, classified as very high, with a burn time of 15 minutes. Visitors and residents should take precautions during these high-risk months by seeking shade, wearing protective clothing, and applying sunscreen regularly to mitigate the harmful effects of UV radiation.

Monthly Maximum UV Index for Barra de Sao Francisco, Brazil

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

The table above highlights how UV exposure in Barra de Sao Francisco 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.

Barra de Sao Francisco'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
Barra de Sao Francisco	15	15	14	12	9	8	9	11	12	14	15	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