Last updated: August 1, 2025
Understanding the UV Index in Artur Nogueira, Brazil is crucial for maintaining skin health and preventing sunburn. With a temperate climate classified as Cfa, residents and visitors alike should pay close attention to daily UV levels, especially during the peak hours when the index can soar up to 7 from 11 AM to 1 PM. This significant spike indicates a high risk of harm from unprotected sun exposure. Being aware of the UV Index not only helps safeguard against immediate skin damage but also contributes to long-term wellness by reducing the risk of skin cancer. Stay informed and take the necessary precautions to enjoy the sun safely!
As the sun rises, the UV Index remains low at 1 from 07:00 to 08:00, making it a perfect time for early risers. However, by 09:00, the index climbs to 3, signaling that afternoon activities should be planned cautiously. The peak intensity occurs between 11:00 and 13:00, reaching a maximum of 7, suggesting that sun protection is essential during these hours. Afternoon hours witness a gradual decline as the index dips to 5 at 14:00, followed by a further decrease to 3 by 15:00. As the day winds down, the UV exposure diminishes significantly to 2 at 16:00 and drops to 1 by 17:00, before falling to 0 by 18:00, signaling a safe end to sun exposure for the day. Stay savvy and protect your skin, especially during those peak hours!
| 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 | 7 | high | 25 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 9 | very high | 15 min |
| 14:00 | 7 | 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 |
Throughout the year, UV Index levels exhibit significant seasonal variation, with the highest risks occurring from January to April and again in September to November, when the index remains in the extreme category. January, February, and December consistently peak at 16, indicating a 10-minute burn time for unprotected skin. In contrast, May to July shows a decrease to a maximum of 8, categorized as very high to high, with slightly longer burn times of up to 25 minutes. As UV levels climb again in August and October, it remains essential for both visitors and residents to take precautions. Always ensure proper sun protection by wearing sunscreen, hats, and protective clothing, particularly during these high-risk months to avoid skin damage. Remember, even on cloudy days, UV radiation can be harmful, so stay vigilant 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 |
| Artur Nogueira | 16 | 16 | 13 | 11 | 8 | 6 | 7 | 10 | 11 | 13 | 14 | 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 |