Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors of Santa Isabel, Brazil, where the tropical climate brings both delightful sunshine and potential risks to skin health. Awareness of UV levels is essential for effective sunburn prevention and maintaining overall skin health, as exposure to high UV radiation can lead to serious long-term effects. With peak UV indices reaching 7 between noon and early afternoon, Santa Isabel's climate presents unique challenges—especially considering the region's Cfa climate zone, which is characterized by warm summers. Stay informed and enjoy the sun safely by paying attention to the UV Index and taking necessary precautions!
The UV Index for the day reveals a significant shift as the sun rises. Starting at a low 1 at 07:00 and 08:00, the intensity gradually ramps up, peaking at 7 during 12:00 and 13:00—prime time to protect your skin! As the afternoon progresses, it dips to 5 by 14:00, then descends further to 3 at 15:00. The latter part of the day sees a decline in UV exposure, returning to 1 by 16:00 and eventually dropping to 0 by 18:00 and 19:00. Be mindful of the midday sun; it's wise to wear sunscreen and seek shade when the UV Index is at its highest!
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 1 | low | 45 min |
08:00 | 1 | low | 45 min |
09:00 | 3 | moderate | 30 min |
10:00 | 5 | moderate | 30 min |
11:00 | 6 | high | 25 min |
12:00 | 7 | high | 25 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 |
The UV Index displays significant seasonal variation, with extreme levels persisting from January through April and again in September to November. The highest risk months for UV exposure are January, February, and December, each with a UV Index of 16, indicating an extreme exposure category and a burn time of only 10 minutes. April also has an extreme rating at 11. In contrast, May and August have very high levels with UV indices of 8 and 9 respectively, leading to longer burn times of 15 minutes. This information emphasizes the importance of protective measures such as sunscreen, protective clothing, and limiting sun exposure, particularly during these high-risk months. Visitors and residents should remain vigilant and prioritize safety throughout the year, especially during the extreme exposure periods.
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 |
Santa Isabel | 16 | 16 | 13 | 11 | 8 | 6 | 7 | 9 | 11 | 13 | 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 |