Last updated: May 3, 2025
Understanding the UV Index is crucial for residents and visitors in Breves, Brazil, a region marked by its tropical climate and high sun exposure. With UV levels soaring as high as 14 during midday, awareness of these metrics is essential for sunburn prevention and maintaining skin health. The intensity of UV radiation can escalate rapidly, especially between 10 AM and 2 PM, when the sun's rays are most potent. By staying informed about the UV Index, you can protect yourself from harmful effects, ensuring that your adventures in the beautiful sunshine of Breves are both enjoyable and safe.
As the sun rises, the UV Index begins its ascent, starting at a modest 1 at 07:00. It gains momentum steadily, reaching an impressive 5 by 09:00. By 10:00, the intensity skyrockets to 9, and from 11:00 to 12:00, it hits peak levels of 12 and 14, respectively, making these hours the most dangerous for unprotected skin. A slight decline follows in the afternoon, with readings of 13 at 13:00 and 10 by 14:00, before tapering off to 7 at 15:00. As the day winds down, UV levels drop significantly, falling to 3 at 16:00, and finally settling back to 1 by 17:00 through 18:00, before fading to 0 by 19:00. It's essential to stay sun-safe during those peak hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 5 | moderate | 30 min |
| 10:00 | 9 | very high | 15 min |
| 11:00 | 12 | extreme | 10 min |
| 12:00 | 14 | extreme | 10 min |
| 13:00 | 13 | extreme | 10 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 7 | high | 25 min |
| 16:00 | 3 | moderate | 30 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
The UV Index typically remains extreme throughout the year in this region, with values peaking at 16 in March. From January to May, the UV Index hovers between 14 and 16, indicating a consistent high risk for sun exposure, with a rapid burn time of just 10 minutes. As the year progresses into June through August, there is a slight decrease, with the UV Index ranging from 11 to 12, but the exposure category remains extreme, necessitating continued caution. In the latter months of the year, September through December, the UV Index stabilizes around 13, still underscoring the risk of skin damage. Visitors and residents alike should take proactive measures, such as wearing sunscreen, protective clothing, and limiting direct sunlight exposure during these high-risk months. Stay vigilant, as the potential for harmful exposure persists 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 |
| 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 |
| Breves | 15 | 14 | 16 | 15 | 14 | 11 | 11 | 12 | 13 | 13 | 13 | 13 |