Last updated: July 2, 2025
In Boca do Acre, Brazil, understanding the UV Index is crucial for protecting your skin and overall health. With a tropical climate that often exposes residents to high levels of ultraviolet radiation, knowing the daily UV levels helps prevent sunburn and long-term skin damage. During peak hours, particularly between 11 AM and 1 PM, UV Index readings can soar to 10, indicating a very high risk of harm from unprotected sun exposure. By staying informed about the UV Index in Boca do Acre, you can take the necessary precautions to cherish the sun while ensuring your skin's well-being.
The UV index reveals a fascinating daily pattern, beginning with low levels of 1 in the early hours from 07:00 to 09:00. As the sun climbs, so does the UV intensity, spiking to a moderate level of 6 by 10:00 and reaching a peak of 10 at both 12:00 and 13:00—making midday the most crucial time to protect your skin. As afternoon arrives, the UV levels gradually decline, dropping to 8 at 14:00, 6 by 15:00, and falling further to 3 by 16:00. The evening brings a return to safer levels, concluding the day with a UV index of 1 at 17:00 and 18:00, before fading to 0 by 19:00. This data underscores the importance of sun safety, especially during the peak hours when UV exposure can be at its highest.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 3 | moderate | 30 min |
| 10:00 | 6 | high | 25 min |
| 11:00 | 8 | very high | 15 min |
| 12:00 | 10 | very high | 15 min |
| 13:00 | 10 | very high | 15 min |
| 14:00 | 8 | very high | 15 min |
| 15:00 | 6 | high | 25 min |
| 16:00 | 3 | moderate | 30 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
Throughout the year, UV Index levels exhibit significant seasonal variation, with January through April consistently showing extreme UV levels (index 15-16) and a burn time of just 10 minutes. This trend continues into November, which also has an extreme index of 15. May sees a slight drop to 12, transitioning to a very high index of 10 during June and July, with a slightly extended burn time of 15 minutes. August witnesses a return to extreme levels (index 11), while September and October remain high at 12 and 14, respectively. As a result, the high-risk months for sun exposure are from January to April and October to November, warranting extra caution. Visitors and residents should take precautions during these months—such as applying broad-spectrum sunscreen, wearing protective clothing, and seeking shade—to minimize the risk of sunburn and long-term 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 |
| Fortaleza UVI | 14 | 14 | 15 | 15 | 13 | 11 | 11 | 12 | 13 | 13 | 13 | 13 |
| Boca do Acre | 15 | 15 | 16 | 15 | 12 | 10 | 10 | 11 | 12 | 14 | 15 | 14 |