Last updated: July 2, 2025
In Itaperuna, Brazil, understanding the UV Index is crucial for protecting your skin and health. With UV levels peaking at an 8 around noon, the risk of sunburn is significant, making it essential to stay informed about daily UV exposure. This knowledge not only helps prevent short-term skin damage but also promotes long-term health by reducing the risk of skin cancers. Nestled in a tropical climate, Itaperuna’s sunny days pose a heightened vulnerability to UV radiation, especially during the summer months. By monitoring and understanding the local UV Index, residents and visitors can take necessary precautions to enjoy the sun safely.
As the sun rises, the UV Index begins its gradual ascent, peaking sharply at 12:00 PM with a striking 8—a reminder of the midday sun's intensity. Starting the day at a gentle 1 at 07:00, it climbs steadily to reach 6 by 10:00 AM, encouraging outdoor enthusiasts to stay protected. The climax arrives at 11:00 AM with a 7, followed closely by the height of 8 at noon. As the afternoon progresses, the UV level gracefully declines, dipping to 5 by 2:00 PM, then significantly dropping to 3, 1, and finally 0 after 6:00 PM. This data underscores the importance of sun safety during peak hours, particularly between 11:00 AM and 1:00 PM, when the UV risk is at its highest—so ensure you’re well-shielded during these critical times!
| 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 | 7 | high | 25 min |
| 12:00 | 8 | very high | 15 min |
| 13:00 | 7 | high | 25 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 exposure in the region experiences significant fluctuations. The highest risk months, characterized by an extreme UV Index, are from January to April and then again in September through November, where the burn time is consistently around 10 minutes. In these months, residents and visitors should take extra precautions, such as wearing sunscreen and protective clothing, to prevent skin damage. Conversely, May and June see a dip into the very high to high categories, with burn times extending to 15 and 25 minutes respectively. While these months are slightly less intense, it’s still essential to remain vigilant about sun safety. As summer approaches with July and August maintaining very high levels, it’s imperative for everyone to remain protected outdoors. The UV Index begins to rise again in September, particularly noteworthy for its quick transition back to extreme levels. Overall, being aware of these seasonal UV changes can help safeguard health while enjoying outdoor activities 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 |
| Itaperuna | 16 | 15 | 13 | 11 | 8 | 7 | 8 | 10 | 12 | 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 |