Last updated: June 2, 2025
In Vacaria, Brazil, being aware of the UV Index is crucial for maintaining healthy skin and preventing sunburn, especially given the region's Cfb climate, characterized by moderate temperatures and varied precipitation. Understanding UV levels can help residents and visitors alike make informed choices about sun protection throughout the day, particularly when UV exposure peaks between 10 AM and 2 PM. With a maximum UV Index reaching 5 during these hours, it's essential to stay vigilant, ensuring your skin health remains a top priority amid Vacaria's sunny and inviting weather.
At dawn, the UV Index begins at a gentle 0 by 07:00, indicating minimal exposure risk. As the sun rises higher, the index steadily climbs, reaching 1 at 08:00 and peaking at 5 between 12:00 and 13:00, when the sun’s rays are at their most intense. During these peak hours, it’s wise to don your sunscreen and protective gear. Following this zenith, the index gracefully descends, dropping to 4 at 14:00 and tapering off to 2 by 15:00. As the afternoon fades to evening, the UV levels reduce significantly, returning to a safe 0 by 18:00. This hourly UV pattern underscores the importance of sun safety during peak daylight hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 0 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 2 | low | 45 min |
| 10:00 | 3 | moderate | 30 min |
| 11:00 | 4 | moderate | 30 min |
| 12:00 | 5 | moderate | 30 min |
| 13:00 | 5 | moderate | 30 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 |
Throughout the year, UV Index levels fluctuate significantly, with the highest risks occurring during the winter and late fall months. From January to March and again in October to November, the UV Index reaches extreme levels (15-14), where skin can burn in as little as 10 minutes of unprotected exposure. The spring months provide a slight reprieve with lower UV levels, but April still warrants caution as it remains in the very high (10) category, with a burn time of 15 minutes. Summer months see a decline in UV intensity, particularly in June, where it drops to a moderate (5) level, but July and August return to high (6-8) and very high (10) levels respectively. Moving into the fall, September balances out with very high (10) UV exposure. It is advisable for both visitors and residents to take precautions, such as wearing protective clothing and using sunscreen, especially during the extreme months to avoid harmful skin damage.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Vacaria | 15 | 15 | 13 | 10 | 7 | 5 | 6 | 8 | 10 | 13 | 14 | 15 |
| 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 |