Last updated: July 2, 2025
Understanding the UV Index is crucial for the residents and visitors of Gandu, Brazil, where the tropical climate can lead to high levels of ultraviolet radiation. As the sun rises, so does the risk of sunburn, skin damage, and long-term health issues associated with excessive UV exposure. Noting the UV levels throughout the day—peaking at 10 between 11:00 AM and 12:00 PM—is vital for planning outdoor activities and ensuring adequate skin protection. With Gandu's typically warm and bright climate, being informed about UV risks empowers you to safeguard your skin health while enjoying the vibrant outdoors.
The UV Index throughout the day showcases a notable peak from 11:00 AM to 12:00 PM, where it reaches a high of 10, indicating very high levels of UV radiation and a strong need for sun protection. This intense sunlight starts to build up at 9:00 AM with a reading of 5, escalating to 8 by 10:00 AM. As the afternoon unfolds, the index gradually declines, dropping to 6 at 2:00 PM, followed by a significant decrease back to 3 by 3:00 PM. By the evening, the UV levels return to safe numbers, tapering off to 1 at 4:00 PM and 0 by 6:00 PM, prompting a welcome end to the day’s sun exposure. Always remember to take precautions during those peak hours!
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 1 | low | 45 min |
08:00 | 3 | moderate | 30 min |
09:00 | 5 | moderate | 30 min |
10:00 | 8 | very high | 15 min |
11:00 | 10 | very high | 15 min |
12:00 | 10 | very high | 15 min |
13:00 | 8 | very high | 15 min |
14:00 | 6 | high | 25 min |
15:00 | 3 | moderate | 30 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 |
Throughout the year, the UV Index in this region remains notably high, particularly from January to April and again in October to December, where it reaches an extreme level of 15. During these months, the burn time is as brief as 10 minutes, posing a significant risk for sunburn and skin damage. In March and April, the index remains at 14 and 13, respectively, indicating a continued high risk. Although June and July see a slight dip to 9 and 10, the index remains categorized as very high, with a burn time of 15 minutes. Visitors and residents are strongly advised to take precautions during these high-risk months by wearing protective clothing, applying sunscreen regularly, and seeking shade when necessary, especially during peak sunlight hours.
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 |
Gandu | 15 | 15 | 14 | 13 | 11 | 9 | 10 | 12 | 13 | 15 | 15 | 15 |
Fortaleza UVI | 14 | 14 | 15 | 15 | 13 | 11 | 11 | 12 | 13 | 13 | 13 | 13 |