Last updated: August 1, 2025
In Terra Nova, Brazil, maintaining an awareness of the UV Index is crucial for safeguarding your skin and overall health. With an Aw climate that features warm, sunny days, understanding the daily UV levels can help you make informed choices about sun protection and reduce the risk of sunburn. As the UV Index peaks at 10 during midday hours, it is important to take precautions to avoid skin damage. By staying informed about the UV intensity, you can enjoy the beautiful Brazilian sun while keeping your skin safe and healthy.
Throughout the day, the UV Index exhibits a distinct peak just before noon. Starting off at a mild 1 at 7:00 AM, it rises steadily, reaching 2 by 8:00 AM. By 9:00 AM, it jumps to 5, and then it surges to an impressive 10 at both 11:00 AM and 12:00 PM, indicating a high level of sun exposure risk. As the afternoon unfolds, the readings dip to 9 at 1:00 PM and subsequently decline further to 6 at 2:00 PM. By 3:00 PM, it drops to 3, and the day winds down with values of 1 at 4:00 and 5:00 PM, before fading to 0 by 6:00 PM and beyond. For optimal sun safety, keep to the shade as the sun peaks!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 3 | moderate | 30 min |
| 09:00 | 6 | high | 25 min |
| 10:00 | 10 | very high | 15 min |
| 11:00 | 12 | extreme | 10 min |
| 12:00 | 12 | extreme | 10 min |
| 13:00 | 11 | extreme | 10 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 |
The seasonal UV changes in our region indicate consistently high levels of ultraviolet radiation. From January to April, the UV Index remains at an extreme level of 15-14 with a burn time of just 10 minutes, signaling that outdoor activities require conscious sun protection. As we move into May and June, the UV Index decreases slightly to 11 and 9 respectively, categorized as very high, yet the burn time extends to 15 minutes, indicating a small relief. However, July and August see a return to extreme levels, with UVs peaking at 12 in August and again a burn time of just 10 minutes. The autumn months of September and October also maintain elevated UV levels, reinforcing the need for protective measures, especially in October when the UV reaches back to an extreme level of 15. As we approach November and December, the extreme risk persists. It's crucial for both visitors and residents to take precautions year-round, such as wearing sunscreen, protective clothing, and limiting sun exposure during peak hours, especially in high-risk months of January through April and from August to October.
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 |
| Terra Nova | 15 | 15 | 15 | 14 | 11 | 9 | 10 | 12 | 13 | 15 | 15 | 15 |