Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors of Campos dos Goytacazes, Brazil. This coastal city enjoys a tropical climate, which means plenty of sunshine but also increased exposure to harmful ultraviolet radiation. By monitoring UV levels, especially during peak hours when the index can reach up to 8 around midday, individuals can take proactive steps to prevent sunburn and protect their skin health. Being aware of the UV Index not only helps in enjoying the outdoors safely but also plays a vital role in long-term skin care, making it an essential part of daily life in this sun-kissed region.
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 |
The UV Index reveals significant seasonal changes, with extreme levels dominating from January to April and again in September to November. High-risk months include January through April and September through November, where the burn time is as brief as 10 minutes. In contrast, the UV Index drops to very high in May, July, and August, allowing for marginally longer burn times of 15 minutes and 20-25 minutes in June. Visitors and residents should prioritize sun safety during these high UV periods, especially by wearing protective clothing, applying sunscreen regularly, and seeking shade, particularly during peak sunlight hours. Taking these precautions can safeguard against sun damage and ensure a healthier experience outdoors.
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 |
| Campos dos Goytacazes | 16 | 14 | 13 | 11 | 8 | 6 | 8 | 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 |