Last updated: July 2, 2025
In Espinosa, Brazil, understanding the UV Index is crucial for safeguarding your skin health and preventing sunburn. Given the region's typically warm Aw climate, daily UV exposure can fluctuate significantly, with peak levels often reaching 10 around noon. With the sun’s intensity rising quickly, it's essential to stay informed about UV levels to enjoy the outdoors safely. By knowing when the UV index is at its highest, you can take proactive steps to protect yourself and your loved ones from harmful effects of ultraviolet radiation. Whether you're lounging in the sun or engaging in outdoor activities, awareness of the UV index can make all the difference.
As the sun rises, the UV Index begins its climb, starting at a modest 1 at 07:00. By 08:00, it gently increases to 2, signaling a day of strengthening rays. The intensity peaks around 12:00 with a striking 10, indicating the time for caution and sun protection. As midday passes, the index gradually declines, dropping to 6 at 14:00 before continuing its descent to 4 at 15:00. By 17:00, it returns to a safer 1, and eventually fades to 0 after 18:00, marking a gentle close to the day. This data underscores the importance of seeking shade and wearing sunscreen during the midday hours when the UV exposure is at its most intense.
| 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 | 7 | high | 25 min |
| 11:00 | 9 | very high | 15 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 9 | very high | 15 min |
| 14:00 | 6 | 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 |
The UV Index exhibits significant seasonal changes, peaking during the winter months and once again in late spring and early fall. January and December show an extreme UV Index of 16, closely followed by February (15) and November (15), which means that these months carry a high risk for sunburn with a burn time as short as 10 minutes. During March to April, the Index remains notably high, ranging from 14 to 13, suggesting that exposure should be carefully managed. The transition to summer is characterized by a slight dip in June and July with a UV Index of 9 and 10 (very high), leading to a longer burn time of 15 minutes. However, August marks a resurgence in the extreme category at 12, which continues through September and October with indices of 13 and 14 respectively. Residents and visitors should take precautions during these high UV months, including wearing protective clothing, applying sunscreen, and seeking shade to minimize the risk of harmful effects from sun exposure.
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 |
| Espinosa | 16 | 15 | 14 | 13 | 11 | 9 | 10 | 12 | 13 | 14 | 15 | 16 |