Last updated: May 3, 2025
In Fernandopolis, Brazil, understanding the UV Index is crucial for protecting your skin and overall health. The UV Index measures the strength of ultraviolet radiation from the sun, which can lead to sunburns and long-term skin damage if proper precautions are not taken. With a warm tropical climate characteristic of the Aw climate zone, residents and visitors alike face heightened UV exposure, especially around midday when the index peaks at 9. Being aware of these levels helps you make informed decisions to enjoy the sun safely—so you can savor the vibrant outdoor lifestyle that Fernandopolis has to offer while keeping your skin protected!
The UV Index today follows an interesting trajectory, peaking dramatically as the day progresses. Starting softly in the early hours, with a maximum of 1 at both 07:00 and 08:00, it climbs steadily to reach a moderate 3 by 09:00. The warmth intensifies, and by 11:00, we see a significant spike to 8, culminating in an impressive maximum of 9 at 12:00. This peak indicates a high level of UV exposure, urging sun safety practices. The intensity gradually tapers off, with readings of 8 at 13:00 and diminishing to 6 and 4 through the afternoon. By 16:00, the index drops to 2, before fading into evening with readings at 1 by 17:00 and falling to 0 for the final hours, signaling a safe return indoors as sunlight wanes. Stay protected during those peak hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 3 | moderate | 30 min |
| 10:00 | 5 | moderate | 30 min |
| 11:00 | 8 | very high | 15 min |
| 12:00 | 9 | very high | 15 min |
| 13:00 | 8 | very high | 15 min |
| 14:00 | 6 | high | 25 min |
| 15:00 | 4 | 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 |