Last updated: June 2, 2025
In Fernandópolis, Brazil, being aware of the UV Index is crucial for protecting your skin and overall health. Understanding UV levels can help you prevent sunburn and minimize long-term skin damage, ensuring you enjoy the sun safely. With a tropical climate that often sees high UV exposure, particularly from late morning to early afternoon, residents and visitors alike should stay informed about the UV Index to make wise decisions about sun safety. As you navigate the warm days in this vibrant city, remember that even a short time outside can increase your risk of harmful effects from ultraviolet rays. Stay protected and enjoy the sunshine responsibly!
The UV Index highlights a dynamic shift in sun exposure throughout the day. Starting off at a modest level of 1 at 07:00 and 08:00, the intensity gradually increases, peaking at 7 from 12:00 to 13:00, indicating high risk for harm from unprotected sun exposure. As the afternoon progresses, the index dips to 5 at 14:00 before gracefully descending to 3 by 15:00. The day winds down with the UV Index returning to its initial levels at 1 by 17:00, and then falling to 0 after 18:00, marking a safe end to sun exposure. It's a clear reminder to plan sun protection strategies, especially during the peak hours when the index reaches its zenith!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 2 | low | 45 min |
| 10:00 | 4 | moderate | 30 min |
| 11:00 | 6 | high | 25 min |
| 12:00 | 7 | high | 25 min |
| 13:00 | 7 | high | 25 min |
| 14:00 | 5 | moderate | 30 min |
| 15:00 | 3 | moderate | 30 min |
| 16:00 | 2 | 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 index levels vary significantly, with January to April consistently experiencing extreme exposure levels, where the burn time is as short as 10 minutes. The months of January (UV Index 15) and February (UV Index 16) are particularly high-risk, warranting extra caution for sun exposure. As the seasons shift, May marks a transition to very high (UV Index 9), giving way to high (UV Index 7) levels in June. The summer months—July and August—remain critically high, also categorized as very high with a burn time of 15 minutes. As summer concludes, September sees a return to the extreme category (UV Index 12), continuing through October and November. Visitors and residents are strongly advised to wear appropriate sun protection during these high-risk months, particularly from January to April and again in September and October, to safeguard against harmful UV radiation and minimize sunburn risk.
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 |
| Fernandopolis | 15 | 16 | 13 | 11 | 9 | 7 | 8 | 10 | 12 | 14 | 15 | 16 |
| 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 |