Last updated: May 3, 2025
Understanding the UV Index is crucial for the residents and visitors of Sao Joao dos Inhamuns, Brazil, where the tropical climate can lead to intense sun exposure. By keeping an eye on UV levels, individuals can effectively prevent sunburn and protect their skin health—a vital consideration given the region’s typical high UV readings, peaking around noon with a significant UV Index of 13. This awareness helps ensure safe, enjoyable outdoor experiences in the vibrant landscapes of Sao Joao dos Inhamuns, especially when the sun is at its most potent. Stay informed and safeguard your skin!
The UV Index demonstrates a clear progression throughout the day, peaking around noon. Starting with a mild level of 1 at 07:00, the index climbs steadily, reaching 4 by 08:00 and hitting 7 by 09:00. As the sun rises higher, it escalates to a striking 10 at 10:00 and reaches its maximum of 13 at 12:00. After this zenith, the intensity begins to wane, dropping to 11 at 13:00, then to 7 at 14:00. The afternoon sees a gentle decline to 4 by 15:00, lingering at 2 and then 1 until 17:00, before diminishing to 0 by 18:00 and remaining there through 19:00. This hourly data underscores the importance of sun protection during peak hours for optimal safety.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 4 | moderate | 30 min |
| 09:00 | 7 | high | 25 min |
| 10:00 | 10 | very high | 15 min |
| 11:00 | 12 | extreme | 10 min |
| 12:00 | 13 | extreme | 10 min |
| 13:00 | 11 | extreme | 10 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, the UV Index remains consistently high, with values predominantly in the extreme category ranging from 11 to 15. The months January through April see the highest UV levels, peaking at 15 in January, March, and a slight decrease thereafter. May marks a gradual decline to 13, followed by a drop to 11 in June, although UV levels remain at extreme throughout the summer months of July and August. The trend continues into fall with October maintaining a 13 index, and returning to 14 in both November and December. Given the persistent high UV exposure and a burn time of merely 10 minutes at this intensity, it is crucial for both visitors and residents to exercise caution during these high-risk months. Wearing protective clothing, applying broad-spectrum sunscreen, and limiting sun exposure during peak hours are strongly advised to safeguard against 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 |
| Fortaleza UVI | 14 | 14 | 15 | 15 | 13 | 11 | 11 | 12 | 13 | 13 | 13 | 13 |
| Sao Joao dos Inhamuns | 15 | 14 | 15 | 14 | 13 | 11 | 12 | 13 | 13 | 13 | 14 | 14 |