Last updated: June 2, 2025
Understanding the UV Index is crucial for residents of Medeiros Neto, Brazil, where the warm, tropical climate can significantly elevate sun exposure risks. Awareness of UV levels helps in preventing sunburn and promoting long-term skin health, especially during peak hours when the index reaches its maximum of 8 around midday. With typical UV exposure peaking sharply between 10:00 AM and 2:00 PM, it's essential for locals and visitors alike to stay informed and protect their skin from potentially harmful rays. By checking the UV Index, you can enjoy the beautiful Brazilian sunshine while minimizing the risks associated with high UV levels.
The UV Index for the day shows a clear peak during the late morning to early afternoon hours. Starting at a low of 1 at 07:00, the index rises steadily, reaching a notable 8 by 11:00 and 12:00. As the sun shines brightly, it's essential to take precautions against the UV radiation at this time. By 13:00, the index begins to decline to 7, and by 14:00, it drops further to 4. The late afternoon brings a return to safe levels, with the index falling to 2 at 15:00 and sinking to 1 by 17:00. Finally, by 18:00, the UV Index dips to 0, marking the end of the high-risk hours. Remember to stay protected when the UV levels are at their peak!
| 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 | 8 | very high | 15 min |
| 12:00 | 8 | very high | 15 min |
| 13:00 | 7 | high | 25 min |
| 14:00 | 4 | moderate | 30 min |
| 15:00 | 2 | low | 45 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 seasonal UV index data highlights significant variations in UV exposure throughout the year, with consistently high to extreme levels from January to December. The high-risk months for UV exposure are January, February, and November, all with an extremely high UV Index of 15, necessitating precautionary measures. Visitors and residents are advised to take protective actions during these months, such as wearing sunblock and protective clothing, and limiting sun exposure to 10 minutes to avoid skin damage. Other months with elevated UV risk include March through April and August through October, where the UV index remains in the extreme to very high categories. To ensure safety, individuals should always check local UV forecasts and adjust outdoor activities accordingly.
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 |
| Medeiros Neto | 15 | 15 | 14 | 12 | 10 | 8 | 9 | 11 | 12 | 14 | 15 | 15 |
| Fortaleza UVI | 14 | 14 | 15 | 15 | 13 | 11 | 11 | 12 | 13 | 13 | 13 | 13 |