Last updated: May 3, 2025
Understanding the UV Index in Santa Terezinha, Brazil is crucial for protecting yourself against harmful ultraviolet radiation. With a climate characterized by high sun exposure, awareness of UV levels can help prevent sunburn and promote better skin health. As you navigate through your day in this vibrant locale, keep an eye on the UV Index, especially during peak hours such as midday, when readings can soar to a critical level of 11. By staying informed, you can enjoy the warm, sunny days while safeguarding your skin from potential damage.
The UV Index today starts off gently at 1 at 07:00, signaling a low risk for sun exposure. As the morning progresses, it gently climbs to 2 by 08:00, then surges dramatically to 4 at 09:00. The intensity peaks at 12:00, hitting a high of 11, representing a very high risk of harm from unprotected sun exposure. This intensity remains strong until 13:00, when it levels off before gradually declining to 8 at 14:00 and descending further to 5 by 15:00. By late afternoon, the index dips to 3 at 16:00, and the sun's influence wanes, dropping to 1 by 17:00 and eventually to 0 by 19:00. It's essential to take precautions during the peak hours to protect your skin from the sun’s powerful rays!
| 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 | 10 | very high | 15 min |
| 12:00 | 11 | extreme | 10 min |
| 13:00 | 11 | extreme | 10 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 5 | moderate | 30 min |
| 16:00 | 3 | moderate | 30 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, remaining alarmingly high throughout the year. From January to April, the UV Index is consistently at 15, categorized as extreme, with a burn time of just 10 minutes. In May and August, it reduces slightly to 12 and 11, still marked as extreme. June and July see a minor decrease to 10, categorized as very high, allowing for a slightly longer burn time of 15 minutes. However, as autumn approaches, the UV Index creeps back up to 14 in October and remains at 15 in November and December, suggesting high-risk months continue throughout the year. Residents and visitors should exercise extreme caution during these periods by seeking shade, wearing protective clothing, and applying sunscreen frequently to prevent skin damage.
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 |
| Santa Terezinha | 15 | 15 | 15 | 13 | 12 | 10 | 10 | 11 | 12 | 14 | 15 | 15 |
| Fortaleza UVI | 14 | 14 | 15 | 15 | 13 | 11 | 11 | 12 | 13 | 13 | 13 | 13 |