UV Index in Atibaia, Brazil

Last updated: May 3, 2025

Staying informed about the UV Index in Atibaia, Brazil is crucial for protecting your skin and health under the sun's powerful rays. Understanding UV levels helps prevent sunburn and reduces the risk of long-term skin damage, making it essential for both residents and visitors alike. With Atibaia's humid subtropical climate (Cfa) presenting a variety of outdoor opportunities, the UV exposure can reach heightened levels, especially during midday when the index peaks at 8. Being aware of these fluctuations empowers you to enjoy the beautiful outdoors while keeping your skin safe from harmful effects.

Hourly UV Index in Atibaia

Experience a dynamic UV Index today as it peaks during the day! Starting with a gentle rise at 8:00 AM hitting a level of 2, the index steadily climbs to a notable 8 by 11:00 AM and 12:00 PM, marking the sun’s strongest rays. After reaching this peak, the intensity begins to wane, dropping to 7 at 1:00 PM, and further declining to 5 by 2:00 PM. As the afternoon fades into evening, the UV Index falls quickly, reaching 1 by 4:00 PM and finally settling at 0 after 6:00 PM. Stay protected and enjoy the sun safely during its 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	3	moderate	30 min
10:00	6	high	25 min
11:00	8	very high	15 min
12:00	8	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 Atibaia

The UV Index shows significant seasonal variation, with the highest readings occurring from January to April, where the index reaches an extreme 16. These months pose a high risk for sunburn, with a critical 10-minute burn time. After April, the index slightly decreases, but remains very high in May (8) and July (8), and high in June (7). As summer transitions into fall, the UV Index fluctuates but remains concerning, especially in September (12) and October (14), both categorized as extreme, again allowing only a short 10-minute exposure without protection. The end of the year is marked by high indices once more, peaking in December at 16. Visitors and residents are strongly advised to take protective measures against UV exposure, particularly during these high-risk months to minimize the risk of sunburn and long-term skin damage.

Monthly Maximum UV Index for Atibaia, Brazil

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

The table above highlights how UV exposure in Atibaia 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.

Atibaia'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
Atibaia	16	16	13	11	8	7	8	10	12	14	15	16
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