Last updated: May 3, 2025
Understanding the UV Index is crucial for residents and visitors of Varjota, Brazil, where the sun's rays can be particularly intense. With UV levels peaking at a staggering 13 around midday, awareness of these levels is vital for sunburn prevention and maintaining long-term skin health. Varjota's tropical climate contributes to increased UV exposure, making it essential to protect yourself, especially during peak hours when the risk of harmful effects is highest. Stay informed and safeguard your skin to enjoy the vibrant sun-soaked days in this beautiful region.
Starting at 7:00 AM, the UV Index is a mild 1, gradually rising as the sun climbs in the sky. By 8:00 AM, it reaches 4, making it a good time for sun protection. The intensity peaks sharply at 10:00 AM with a maximum index of 10, continuing to hold strong at 13 during the midday hours of 11:00 AM and 12:00 PM. This is the critical window when sun exposure can cause harm, so seek shade or wear protective gear if you're outside! As the afternoon progresses, the index begins to dip: it drops to 11 at 1:00 PM, then to 8 by 2:00 PM, before further declining to 4 at 3:00 PM. By 4:00 PM, it decreases to 2, prompting a cautious approach to the sun. Finally, as the day winds down, the index falls to 1 by 5:00 PM, and eventually drops to 0 after 6:00 PM, signaling that it's safe to enjoy the evening outdoors without worries about UV exposure.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 4 | moderate | 30 min |
| 09:00 | 7 | high | 25 min |
| 10:00 | 10 | very high | 15 min |
| 11:00 | 13 | extreme | 10 min |
| 12:00 | 13 | extreme | 10 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 8 | very high | 15 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 |
The UV Index remains consistently high throughout the year, with values ranging from 11 to 15 in the extreme exposure category, indicating that the risk of harm from unprotected sun exposure is significant. High-risk months include March and April with an index peaking at 15, closely followed by January and February, both at 14. During these months, the burn time is as short as 10 minutes, emphasizing the need for caution. Visitors and residents are strongly advised to take protective measures, such as wearing sunscreen, protective clothing, and seeking shade during peak sun hours, especially from March to April when UV levels are at their highest. Stay safe and be sun-smart all year round!
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 |
| Varjota | 14 | 14 | 15 | 15 | 13 | 11 | 11 | 13 | 13 | 13 | 14 | 14 |