Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors in Realeza, Brazil, where sunshine is abundant and skin health is a priority. With the region’s climate classified as Cfa, inhabitants must remain vigilant about daily UV levels to prevent sunburn and long-term skin damage. From the peak UV Index of 6 around midday, it's clear that the sun's rays can be intense, making it essential to be informed and proactive during summer months. By staying aware of UV exposure risks, you can enjoy the sunny days safely while protecting your skin!
The UV Index throughout the day presents a dynamic interplay of sunlight, peaking at 12:00 PM and 1:00 PM with a robust 6. Early risers will enjoy the gentle warmth with a UV Index of 0 at 7:00 AM, slowly climbing to 1 by 8:00 AM. As the morning progresses, it reaches 3 at 10:00 AM and then escalates to its highest at noon. Afternoon hours see a gradual decline, dipping back to 5 at 2:00 PM before gently dropping to 3 by 3:00 PM. As the sun sets, the index retreats below 1 from 5:00 PM onward, concluding with a soothing 0 at 6:00 PM and remaining steady until dusk. Make sure to stay protected during the peak hours, especially when the sun's rays are at their strongest!
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 0 | low | 45 min |
08:00 | 1 | low | 45 min |
09:00 | 2 | low | 45 min |
10:00 | 3 | moderate | 30 min |
11:00 | 5 | moderate | 30 min |
12:00 | 6 | high | 25 min |
13:00 | 6 | high | 25 min |
14:00 | 5 | moderate | 30 min |
15:00 | 3 | moderate | 30 min |
16:00 | 2 | 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 January through April and November to December experiencing extreme levels (15 to 13), where the burn time is as short as 10 minutes. This indicates that the sun’s intensity is particularly strong during these months, necessitating extreme caution when spending time outdoors. May and June see a dip to a high level (7 to 6) with longer burn times of 25 minutes. August and September also elevate to very high levels (8 to 10), with reduced burn times of 15 minutes. Therefore, it is crucial for visitors and residents to take protective measures—such as applying sunscreen, wearing protective clothing, and seeking shade—especially during the high-risk months of January, February, March, April, October, and November. Staying informed about the UV Index can help ensure a safer outdoor experience year-round.
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 |
Realeza | 15 | 15 | 13 | 11 | 7 | 6 | 6 | 8 | 10 | 13 | 15 | 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 |