UV Index in Pio IX, Brazil

Last updated: May 3, 2025

Understanding the UV Index is crucial for residents of Pio IX, Brazil, where the tropical climate and high sun exposure make monitoring UV levels essential for skin health. With values peaking at 12 during midday hours, awareness of UV risks can significantly help in preventing sunburn and reducing long-term skin damage. As UV radiation varies throughout the day—from a moderate 4 in the morning to a dangerous 12 at noon—staying informed empowers you to enjoy the beautiful Brazilian sun safely while protecting your skin from its harmful effects.

Hourly UV Index in Pio IX

The UV Index throughout the day reveals a striking fluctuation in sun intensity. Starting at a modest 1 by 07:00, the index quickly rises as the sun ascends, hitting 4 by 08:00. As the clock strikes 09:00, we reach a 7, but it’s between 10:00 and 12:00 that we experience the peak, with the index soaring to an impressive 12. Gradually, the intensity begins to wane; by 13:00, it drops to 10, and further declines to 4 by 15:00. The sun's power diminishes steadily, settling back to 1 by 17:00 and finally reaching 0 after 18:00, inviting a gentle close to the day. With this data, it's clear that the midday hours are the best time to be cautious when exposed to the sun!

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	4	moderate	30 min
09:00	7	high	25 min
10:00	10	very high	15 min
11:00	12	extreme	10 min
12:00	12	extreme	10 min
13:00	10	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 Pio IX

The UV Index remains notably high year-round, with values frequently reaching extreme levels. January through April shows consistent UV Index values of 14 to 15, indicating an extremely high risk of harm from unprotected sun exposure. As we move into the summer months of May and June, the Index drops slightly to 11-12, but the exposure risk remains serious. July and August maintain an index of 11-13, making these months still very concerning for sun safety. Notably, November and December experience a resurgence back to 14. Given the persistent risk throughout the year, it’s crucial for visitors and residents to take precautionary measures against UV exposure, such as wearing protective clothing, using high-SPF sunscreen, and seeking shade, especially during peak sun hours. Remember, even on cloudy days, harmful UV rays can penetrate and cause skin damage. Stay safe!

Monthly Maximum UV Index for Pio IX, Brazil

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

The table above highlights how UV exposure in Pio IX 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.

Pio IX'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
Fortaleza UVI	14	14	15	15	13	11	11	12	13	13	13	13
Pio IX	15	14	15	14	12	11	11	13	13	13	14	14