Last updated: May 3, 2025
Understanding the UV Index in Vilhena, Brazil is essential for protecting your skin and overall health from harmful ultraviolet radiation. With the region's tropical climate (Aw), residents and visitors face heightened UV exposure that can lead to sunburn and long-term skin damage. Knowing the UV levels throughout the day is crucial for planning outdoor activities and ensuring proper sun protection. For instance, during peak hours, the UV Index can soar to 11, indicating extreme risk, while lower levels in the morning and late afternoon still warrant caution. Stay informed and safeguard your skin against the sun's powerful rays in beautiful Vilhena!
The UV Index today peaked dramatically in the late morning, starting from a low of 1 at 07:00 and climbing to an impressive 11 by 12:00. This intense exposure reached its zenith at 11:00, where precautions were essential as the Index hit 10. As the afternoon progressed, the UV levels began to gradually decline, dropping to 4 by 15:00 and further down to a modest 2 by 16:00. By the evening, the sun had softened, bringing the UV Index back to 1 at 17:00, and ultimately fading to 0 by 18:00, when the day's light had nearly vanished. Make sure to stay protected during peak hours to enjoy the sunshine safely!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 5 | moderate | 30 min |
| 10:00 | 8 | very high | 15 min |
| 11:00 | 10 | very high | 15 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 10 | very high | 15 min |
| 14:00 | 7 | high | 25 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 |
Throughout the year, the UV Index remains notably high in this region, with extreme exposure levels observed from January to April, and again in August, September, October, and November. January through April consistently show a UV Index of 16, indicating a burn time of just 10 minutes. The high-risk months are confirmed to be January, February, March, April, August, September, October, and November, all falling within the extreme category. Residents and visitors are strongly advised to take precautionary measures during these months, including wearing protective clothing, applying broad-spectrum sunscreen, and seeking shade when outdoors, especially during peak sunlight hours. As the season progresses into the summer months of June and July, the UV Index slightly decreases to 10 but remains in the very high category, with an increased burn time of 15 minutes. Stay vigilant and prioritize sun safety 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 |
| Vilhena | 16 | 16 | 16 | 15 | 11 | 10 | 10 | 12 | 12 | 14 | 15 | 16 |