UV Index in Riacho de Santana, Brazil

Last updated: May 3, 2025

Understanding the UV Index is crucial for residents and visitors in Riacho de Santana, Brazil, to safeguard their skin health and prevent sunburns. With a warm Aw climate, the region experiences significant UV exposure, particularly around midday when levels can soar to 11—a high risk for harmful effects. By being aware of daily UV levels, you can make informed decisions about sun protection, ensuring you enjoy the beautiful outdoors while keeping your skin safe. Remember, staying informed is key to protecting yourself from the sun’s potentially damaging rays!

Hourly UV Index in Riacho de Santana

As the sun rises, the UV Index starts off low at 1 at 7:00 AM, slowly increasing to 3 by 8:00 AM. By 9:00 AM, it reaches 5, suggesting that the rays are becoming more intense. The peak arrives at 12:00 PM, where a high of 11 is recorded, indicating a very high risk of harm from unprotected sun exposure. The afternoon still holds lingering rays, with values descending gradually from 9 at 1:00 PM to 4 by 3:00 PM. As the sun begins to set, the index drops sharply to 2 at 4:00 PM, and ultimately to 0 after 6:00 PM. Remember, during the peak hours, especially between 10:00 AM and 2:00 PM, protecting your skin is essential!

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	3	moderate	30 min
09:00	5	moderate	30 min
10:00	8	very high	15 min
11:00	10	very high	15 min
12:00	11	extreme	10 min
13:00	9	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 Riacho de Santana

The UV Index shows significant seasonal variation, with extremely high levels persisting from January to April and then again in August and October. High-risk months include January, February, March, November, and December, each registering a UV Index of 15, indicating an extreme exposure category with a burn time of just 10 minutes. Visitors and residents should take caution during these months by seeking shade, wearing protective clothing, and applying broad-spectrum sunscreen regularly. Additionally, even during the slightly lower UV Index months of June and July, with levels of 9 and 10 respectively, it remains essential to stay vigilant about sun protection due to the very high exposure category.

Monthly Maximum UV Index for Riacho de Santana, Brazil

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

The table above highlights how UV exposure in Riacho de Santana 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.

Riacho de Santana'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
Riacho de Santana	15	15	15	13	11	9	10	12	13	14	15	15
Fortaleza UVI	14	14	15	15	13	11	11	12	13	13	13	13