Last updated: June 2, 2025
Understanding the UV Index in Jeronimo Monteiro, Brazil is crucial for everyone looking to enjoy the sun safely. With a tropical savanna climate, this region experiences significant UV exposure, particularly during peak hours when levels can reach as high as 7 around midday. Being aware of these levels is essential for sunburn prevention and overall skin health, as prolonged exposure can lead to serious dermatological issues. By monitoring the UV Index, residents and visitors can take necessary precautions, ensuring sunny days are both enjoyable and safe!
The UV Index data paints a clear picture of how exposure to ultraviolet rays varies throughout the day. Starting at a low level of 1 at 07:00, the index gradually climbs to peak at 7 from 11:00 to 12:00, indicating the times when sun protection is most crucial. As the afternoon progresses, the index dips to 6 at 13:00, then gently declines to 4 by 14:00. The evening hours see a significant drop, with values falling to 2 at 15:00 and retreating to 1 at 16:00. By nightfall, the UV Index drops to 0 from 18:00 onward, signalling a safe time for outdoor activities without the need for sun protection. Enjoy the sunshine, but be mindful of the peak hours!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 3 | moderate | 30 min |
| 10:00 | 5 | moderate | 30 min |
| 11:00 | 7 | high | 25 min |
| 12:00 | 7 | high | 25 min |
| 13:00 | 6 | high | 25 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, the UV Index in the region shows significant seasonal variations, with extreme levels from January to April and notable spikes in September to November. The high-risk months for UV exposure are January to April and September to November, when the UV Index consistently reaches 15 to 16, indicating an extreme exposure category with a burn time of just 10 minutes. Visitors and residents should take precautionary measures during these periods, such as wearing protective clothing, applying broad-spectrum sunscreen, and seeking shade when outdoors, to mitigate the risk of sunburn and long-term skin damage. As summer approaches, while May sees a drop to 9 (very high), it remains essential to remain vigilant, especially in July and August, when the UV Index returns to 8 to 10 with 15-minute burn times.
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 |
| Jeronimo Monteiro | 16 | 15 | 14 | 12 | 9 | 7 | 8 | 10 | 12 | 14 | 15 | 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 |