Last updated: August 1, 2025
Understanding the UV Index is essential for residents and visitors in Russas, Brazil. With its abundant sunshine and warm climate, awareness of UV levels can significantly aid in preventing sunburn and promoting long-term skin health. The UV Index indicates the strength of ultraviolet radiation, and in Russas, values can soar to dangerous heights, particularly between 10 AM and 2 PM, when readings reach a peak of 11. By staying informed about these levels, you can take proactive measures to protect your skin and enjoy the beautiful, sunny days in this vibrant region.
At 07:00, the UV Index starts low at 1, gradually climbing to 3 by 08:00. As the sun rises higher, the intensity surges, peaking at a striking 11 by 11:00 and remaining at that level until 12:00. The afternoon sees a slight decrease, with the index slipping to 10 by 13:00 and then further to 7 at 14:00. By mid-afternoon, the UV Index does a dramatic drop to 4 at 15:00, and by 16:00, it falls back to 1. The sun begins to set, leading to a complete reduction, bringing UV levels down to 0 by 19:00. This data illustrates a typical day of high UV exposure during the midday hours, highlighting the importance of sun protection at peak times.
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 2 | 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 | 12 | extreme | 10 min |
13:00 | 10 | very high | 15 min |
14:00 | 7 | high | 25 min |
15:00 | 4 | 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, the UV Index remains consistently high, peaking at 15 in March. The highest risk months for UV exposure are from January to April and November to December, where the UV Index consistently ranges from 14 to 15, indicating an extreme exposure category with a burn time of only 10 minutes. It's essential for both visitors and residents to take precautionary measures during these months, such as wearing sunscreen, protective clothing, and seeking shade during peak sunlight hours. Even during the summer months, with UV levels at 11 to 13, vigilance against skin damage is crucial. Regular monitoring of the UV Index and proper sun safety practices can help mitigate health risks associated with high UV exposure.
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 |
Russas | 14 | 14 | 15 | 14 | 13 | 11 | 11 | 12 | 13 | 13 | 14 | 14 |