UV Index in Altinho, Brazil

Last updated: June 2, 2025

Understanding the UV Index is crucial for residents and visitors of Altinho, Brazil, where the sun shines brightly in a tropical climate. The UV levels here can soar, especially during midday hours, making it essential to stay informed about potential risks such as sunburn and long-term skin damage. With UV Index values peaking at 11 from 11:00 AM to 12:00 PM, it's vital to protect your skin by seeking shade and using sunscreen. Awareness of these UV levels can help you enjoy the beautiful outdoors while keeping your skin healthy and safe.

Hourly UV Index in Altinho

As the sun rises, the UV Index begins its ascent, reaching a moderate level of 2 by 7:00 AM. A steady increase quickly follows, peaking sharply at 11:00 AM and 12:00 PM with a high of 11, indicating a significant need for sun protection. The intensity of UV rays then begins to wane, dropping to 8 by 1:00 PM, and then gradually declining to a more manageable 5 at 2:00 PM. As the afternoon progresses, it continues to decrease, finishing the day at a minimal 0 by 6:00 PM. This data highlights the importance of taking precautions during the midday hours when UV exposure is at its highest. Remember to apply sunscreen and wear protective clothing to safeguard your skin!

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	2	low	45 min
08:00	4	moderate	30 min
09:00	7	high	25 min
10:00	10	very high	15 min
11:00	11	extreme	10 min
12:00	11	extreme	10 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 Altinho

Throughout the year, the UV Index remains extremely high, consistently at 15 or 14 from January to March and notably high in November and December. The highest risk months for UV exposure are from January to March, when the UV Index is consistently at its peak, but danger remains significant across all months, particularly with a burn time of only 10 minutes regardless of the month. Visitors and residents are strongly advised to take precautionary measures during these months, including wearing sunscreen, protective clothing, and staying in shaded areas during peak sunlight hours to minimize their risk of sunburn and skin damage. It’s crucial to remain vigilant all year round, as harmful UV radiation persists even in the cooler months.

Monthly Maximum UV Index for Altinho, Brazil

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

The table above highlights how UV exposure in Altinho 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.

Altinho'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
Altinho	15	15	15	14	12	11	11	12	14	14	15	15