Last updated: May 3, 2025
In Guiratinga, Brazil, being aware of the UV Index is not just beneficial—it's essential. High levels of ultraviolet radiation can lead to painful sunburns and long-term skin health issues, making it crucial for residents and visitors alike to understand daily UV fluctuations. Guiratinga’s Aw climate brings plenty of sunshine, with UV levels peaking at 10 around midday, indicating a significant risk of overexposure. By staying informed about these levels, you can take the necessary precautions—such as seeking shade or applying sunscreen—ensuring a healthier and more enjoyable time in this vibrant region.
As the sun rises, the UV Index starts off at a gentle 1 at 07:00, making it a safe time to enjoy outdoor activities. However, as the morning progresses, the index climbs sharply, reaching 3 by 08:00 and hitting 6 by 09:00. The peak exposure occurs from 11:00 to 12:00, where it reaches its maximum of 10, indicating a high risk for harm from unprotected sun exposure. By the afternoon, a gradual decline begins: 8 at 13:00, followed by 5 at 14:00, before tapering off to 3 at 15:00. As the day winds down, UV levels decrease to 1 by 16:00 and drop to 0 after 18:00, making late evening a soothing time to relax outdoors without sun concerns. Always remember to protect your skin during those peak hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 6 | high | 25 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 | 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 |
Throughout the year, UV Index levels fluctuate significantly, with the most extreme values occurring from January to April, and in August and October to December. The highest risk months, characterized by an extreme exposure category, include January (UV 15), February (UV 17), March (UV 14), April (UV 12), along with August (UV 11) and October (UV 15). During these periods, burn time is notably short, often just 10 minutes, emphasizing the importance of taking protective measures. Visitors and residents should be particularly vigilant during these months, wearing appropriate sunscreen, protective clothing, and seeking shade to minimize UV exposure. As the summer months approach, May through July still present high UV levels, but with slightly longer burn times of 15 minutes. It's crucial for everyone to remain aware and proactive in safeguarding against harmful UV radiation 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 |
| 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 |
| Guiratinga | 15 | 17 | 14 | 12 | 10 | 8 | 9 | 11 | 13 | 15 | 15 | 16 |
| Fortaleza UVI | 14 | 14 | 15 | 15 | 13 | 11 | 11 | 12 | 13 | 13 | 13 | 13 |