UV Index in Riacho de Santana, Brazil

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents and visitors in Riacho de Santana, Brazil, where the tropical climate brings sunshine and warmth year-round. With UV levels peaking at a significant 10 during midday, awareness is key to preventing sunburn and maintaining long-term skin health. As you enjoy the beautiful outdoors, being informed about UV exposure risks can help you make smart choices for protection, allowing you to bask in the vibrant sun while safeguarding your skin. Remember, even a quick trip outside demands vigilance, especially as the sun climbs higher in the sky.

Hourly UV Index in Riacho de Santana

The UV Index throughout the day presents a compelling narrative of sun exposure, peaking at a staggering 10 at 12:00 PM, indicating a need for caution. As the sun rises, the UV Index gradually climbs from 1 at 7:00 AM to a notable 4 by 9:00 AM. The ascent continues, reaching 9 by 11:00 AM, before hitting its maximum at noon. However, as the afternoon progresses, the intensity wanes, with readings dropping to 7 by 2:00 PM and eventually falling to 1 by 5:00 PM. As twilight approaches, the Index dips to 0 after 6:00 PM, promising safe evening conditions. Engaging with the sun requires awareness; ensure you're protected 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	4	moderate	30 min
10:00	7	high	25 min
11:00	9	very high	15 min
12:00	10	very high	15 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