Last updated: May 3, 2025
Understanding the UV Index is crucial for residents and visitors in Sacramento, Brazil, where the warm Aw climate can lead to significant sun exposure throughout the year. The UV levels can vary greatly throughout the day, peaking at a dangerous 9 around midday, making awareness key to preventing sunburn and maintaining skin health. With protective measures, you can enjoy the sun safely; just remember that even lower index levels can pose risks, especially during outdoor activities. Being informed about the UV Index is not just smart—it's essential for your wellbeing in this sun-kissed region!
The UV index throughout the day exhibits a dynamic rise and fall, reflecting the sun's intensity. At 07:00, the index starts low at 1, gradually climbing to 2 by 08:00. By 09:00, it reaches a moderate 4, but excitement peaks at 12:00 with a striking 9, indicating a high risk for unprotected skin. The intensity tapers down after this noon pinnacle—falling to 8 at 13:00, then 6 at 14:00. As afternoon turns to evening, the index diminishes significantly, settling at 4 by 15:00, dropping to 2 at 16:00, and finally winding down to 1 by 17:00. As the sun sets, the index recedes completely, hitting 0 by 18:00, leaving a tranquil end to the day. Remember, during peak times, sun protection is crucial!
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 1 | low | 45 min |
08:00 | 2 | low | 45 min |
09:00 | 4 | moderate | 30 min |
10:00 | 6 | high | 25 min |
11:00 | 8 | very high | 15 min |
12:00 | 9 | very high | 15 min |
13:00 | 8 | very high | 15 min |
14:00 | 6 | high | 25 min |
15:00 | 4 | 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 varies significantly throughout the year, with the highest risk months being January, February, March, and December, all experiencing an extreme exposure category with UV Index values reaching up to 17. During these months, individuals can sustain skin burns in as little as 10 minutes. April also presents a high risk with a UV Index of 12. The risk decreases slightly in May and June, where the exposure category is still considered very high, but burn time extends to 15 minutes. Visitors and residents are strongly advised to take protective measures such as applying broad-spectrum sunscreen, wearing protective clothing, and seeking shade during peak sun hours, particularly from January to April and in December, to minimize the risk of 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 |
Sacramento | 16 | 16 | 14 | 12 | 9 | 8 | 9 | 11 | 13 | 14 | 15 | 17 |
Fortaleza UVI | 14 | 14 | 15 | 15 | 13 | 11 | 11 | 12 | 13 | 13 | 13 | 13 |