Last updated: June 2, 2025
Understanding the UV Index in Itabira, Brazil is vital for ensuring skin health and preventing sunburn. With the region's Cwa climate, characterized by plenty of sunshine and significant UV exposure, knowing the UV levels throughout the day can empower residents and visitors to make informed decisions about sun safety. From the peak index of 8 around noon—when the risk of harm is at its highest—to the lower levels in the early morning and late afternoon, staying aware of these fluctuations is crucial for protecting your skin while enjoying Itabira's beautiful outdoors.
The UV Index throughout the day displays a notable peak in intensity between 12:00 PM and 1:00 PM, reaching a maximum of 8—a clear signal for sun safety. As the morning unfolds, the index rises steadily from 1 at 7:00 AM to an impactful 7 by 11:00 AM. Following the midday zenith, the UV readings begin to decline, gently tapering to a 5 at 2:00 PM, and further dropping to a mere 1 by 4:00 PM. As evening approaches, UV exposure diminishes gradually to 0 by 6:00 PM—encouraging late-day strollers to bask in diminishing rays without worry. This pattern underscores the importance of sun protection when the UV Index peaks during midday hours.
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 | 7 | high | 25 min |
12:00 | 8 | very high | 15 min |
13:00 | 6 | high | 25 min |
14:00 | 5 | moderate | 30 min |
15:00 | 2 | low | 45 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 |
The UV Index exhibits significant seasonal variation, with extreme levels persisting from January to April and returning briefly in August through October. The high-risk months, characterized by an extreme UV Index of 12 or above, are January to April and again in November and December. During these periods, the burn time is alarmingly short—often just 10 minutes—emphasizing the need for vigilance. In contrast, the months of May to July see a slight drop to a very high UV Index, allowing for 15 minutes of exposure before burning occurs. Residents and visitors are advised to take precautionary measures, such as wearing protective clothing, using sunscreen, and seeking shade, especially during peak UV hours.
UV Risk Categories
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 |
Itabira | 17 | 15 | 14 | 12 | 9 | 8 | 9 | 11 | 12 | 14 | 15 | 16 |
Fortaleza UVI | 14 | 14 | 15 | 15 | 13 | 11 | 11 | 12 | 13 | 13 | 13 | 13 |