Last updated: May 3, 2025
Understanding the UV Index is crucial for the residents and visitors of Óbidos, Brazil, where sunny days are plentiful thanks to its warm tropical climate. Awareness of UV levels not only helps in preventing sunburn but also plays a significant role in maintaining long-term skin health. Typically, UV exposure peaks during midday, with levels soaring to a remarkable 13 at noon. This makes it imperative to pay close attention to the daily UV Index, especially when engaging in outdoor activities, to safeguard against the potentially harmful effects of the sun.
As the day unfolds, the UV Index climbs steadily, starting at a moderate 1 at 07:00 and peaking at a scorching 13 from 12:00 to 13:00. This spike signifies a heightened risk of harm from unprotected sun exposure, particularly around 11:00, when the index hits 11—a strong warning to seek shade and wear sunscreen. A gradual decline begins at 14:00, dipping to 8 by 15:00, before sliding back to a safe 2 by 17:00 and ultimately falling to 0 as daylight fades at 19:00. Plan outdoor activities wisely to minimize sun damage during those peak hours!
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 | 7 | high | 25 min |
11:00 | 11 | extreme | 10 min |
12:00 | 13 | extreme | 10 min |
13:00 | 13 | extreme | 10 min |
14:00 | 11 | extreme | 10 min |
15:00 | 8 | very high | 15 min |
16:00 | 4 | moderate | 30 min |
17:00 | 2 | low | 45 min |
18:00 | 1 | low | 45 min |
19:00 | 0 | low | 45 min |
The UV Index throughout the year shows persistent extreme levels, with particularly high readings from March (17) to April (16), marking these months as high-risk for sun exposure. Notably, January and February also maintain a high UV Index of 15. Burn times remain consistently short at 10 minutes, indicating that caution is crucial year-round. Residents and visitors should take proactive measures to protect themselves from UV radiation, including seeking shade, wearing protective clothing, and applying sunscreen frequently, especially during these high-risk months.
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 |
Obidos | 15 | 15 | 17 | 16 | 13 | 12 | 11 | 12 | 12 | 13 | 13 | 13 |