Last updated: June 2, 2025
In Mairi, Brazil, being aware of the UV Index is crucial for safeguarding your skin against harmful ultraviolet rays. Understanding UV levels is essential not only for preventing sunburn but also for maintaining long-term skin health. With a tropical climate characterized by high sun exposure, Mairi’s UV Index can reach peak levels of 10 around midday, indicating a very high risk of harm from unprotected sun exposure. By staying informed about UV levels, you can take proactive measures to enjoy the sun safely while ensuring your skin remains protected.
The UV Index throughout the day showcases a notable peak from 11:00 AM to 12:00 PM, where it reaches a high of 10, indicating very high levels of UV radiation and a strong need for sun protection. This intense sunlight starts to build up at 9:00 AM with a reading of 5, escalating to 8 by 10:00 AM. As the afternoon unfolds, the index gradually declines, dropping to 6 at 2:00 PM, followed by a significant decrease back to 3 by 3:00 PM. By the evening, the UV levels return to safe numbers, tapering off to 1 at 4:00 PM and 0 by 6:00 PM, prompting a welcome end to the day’s sun exposure. Always remember to take precautions during those peak hours!
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 1 | low | 45 min |
08:00 | 3 | moderate | 30 min |
09:00 | 5 | moderate | 30 min |
10:00 | 8 | very high | 15 min |
11:00 | 10 | very high | 15 min |
12:00 | 10 | very high | 15 min |
13:00 | 8 | very high | 15 min |
14:00 | 6 | high | 25 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 |
Throughout the year, UV Index levels in this region fluctuate significantly, with the highest values occurring from January to March and again in November and December, where the index reaches 15 and falls within the extreme exposure category, giving a burn time of just 10 minutes. The months of April, August, September, and October also present high risks, showing UV levels between 13 and 14, warranting similar caution. Conversely, June and July see a slight decrease to a UV Index of 10, categorized as very high, offering a marginally longer burn time of 15 minutes. Visitors and residents are strongly advised to take precautionary measures during these high-risk months—wearing protective clothing, using sunscreen, and seeking shade, especially during midday hours, to minimize the risk of sunburn and long-term skin damage.
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 |
Fortaleza UVI | 14 | 14 | 15 | 15 | 13 | 11 | 11 | 12 | 13 | 13 | 13 | 13 |
Mairi | 15 | 14 | 15 | 14 | 11 | 10 | 10 | 12 | 13 | 15 | 15 | 15 |