Last updated: July 2, 2025
Understanding the UV Index is crucial for residents of Capelinha, Brazil, where the sun’s intensity can pose significant risks to skin health. With UV levels frequently peaking between 9 and 10 during midday hours, awareness of these fluctuations can help prevent sunburn and long-term skin damage. Capelinha's warm, tropical climate means that residents should be vigilant about UV exposure, especially during the sunniest times of the day. Stay informed and protect your skin — knowing the UV Index is the first step towards a healthier lifestyle under the Brazilian sun.
The UV Index throughout the day demonstrates a distinct peak during the midday hours, reaching its maximum of 9 at 11:00 AM and again at 12:00 PM. As the sun rises, the UV Index begins at a mere 1 at 7:00 AM, gradually climbing to 4 by 9:00 AM. However, once the clock strikes 10:00 AM, the intensity escalates sharply to 7 before hitting its zenith. Following this, there is a slight tapering off in the afternoon hours, with values nearing 6 at 2:00 PM and gradually decreasing to 3 by 3:00 PM. As daylight wanes, the UV Index plummets, dropping to 1 by 4:00 PM and finally settling at 0 by 6:00 PM, signaling an end to the sun's powerful rays for the day. This data emphasizes the importance of sun protection, especially during those peak hours between 10:00 AM and 2:00 PM.
| 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 | 9 | very high | 15 min |
| 13:00 | 8 | very high | 15 min |
| 14:00 | 6 | high | 25 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 |
The UV Index exhibits significant seasonal variation, with highest values occurring during the winter months of January and February, both reaching an extreme index of 16. This is followed by a gradual decline in March and April, yet remains critically high. From May to July, the UV Index drops slightly but remains in the very high category, with burn times extending to 15 minutes. The trend shifts again in August and September, where the UV Index returns to extreme levels, peaking again in November at 15. For residents and visitors, caution is advised during these high-risk months, particularly from January to April and again from August to October. It is crucial to protect your skin with adequate sunscreen, clothing, and shade, as burn times are exceedingly short, ranging from 10 to 15 minutes.
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 |
| Capelinha | 16 | 16 | 14 | 13 | 10 | 8 | 9 | 11 | 12 | 14 | 15 | 16 |
| Fortaleza UVI | 14 | 14 | 15 | 15 | 13 | 11 | 11 | 12 | 13 | 13 | 13 | 13 |