Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors of Sao Gabriel da Cachoeira, Brazil, where the unique climate creates specific sun exposure risks. With UV levels peaking at 12 around midday, awareness of these fluctuations helps in preventing sunburns and safeguarding skin health, especially in a region known for its vibrant tropical environment. By keeping a close eye on the daily UV Index, you can enjoy the sun safely while minimizing the risk of harmful effects associated with excessive sun exposure. Don’t underestimate the power of the sun in this stunning locale—protecting your skin has never been more essential!
The UV Index for the day shows a dramatic shift as the sun climbs higher, reaching its peak at noon with a value of 12, indicating a very high level of UV radiation. The sun's intensity begins to ramp up sharply from 8:00 AM, where it starts at a mild 2, climbing to a notable 11 by 11:00 AM. By 1:00 PM, the UV Index remains steady at 12, reminding everyone to take necessary precautions. As the afternoon progresses, the index gradually declines, with values dropping to 6 by 3:00 PM, and tapering off to 1 by 5:00 PM. By 7:00 PM, the rating falls to a mere 0, signaling a safe return outdoors as daylight fades. Remember to shield yourself 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 | 8 | very high | 15 min |
| 11:00 | 11 | extreme | 10 min |
| 12:00 | 12 | extreme | 10 min |
| 13:00 | 12 | extreme | 10 min |
| 14:00 | 10 | very high | 15 min |
| 15:00 | 6 | high | 25 min |
| 16:00 | 3 | moderate | 30 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
The UV Index exhibits extreme levels from January to May, peaking at 16 in March and April, indicating that these months are particularly high-risk for sun exposure with a burn time as short as 10 minutes. The UV Index remains elevated even during the summer months, fluctuating between 12 and 14, but slightly decreases in intensity starting in June. As such, visitors and residents are advised to take precautions year-round, especially during the high-risk months, by wearing broad-spectrum sunscreen, protective clothing, and seeking shade to minimize exposure during peak sunlight hours. With extreme exposure categories persisting throughout the year, vigilance is key to protecting skin health.
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 |
| Sao Gabriel da Cachoeira | 14 | 15 | 16 | 16 | 14 | 12 | 12 | 12 | 13 | 14 | 13 | 12 |