Last updated: August 1, 2025
Understanding the UV Index in Cacapava do Sul, Brazil, is crucial for protecting your skin and overall health. As a region characterized by its Cfa climate, this area experiences varied UV exposure throughout the day, with peak levels typically hitting 5 around midday. Recognizing these UV levels is vital for sunburn prevention and maintaining healthy skin, especially during the summer months when the risk for harmful effects increases. With a UV Index that can escalate quickly, staying informed empowers residents and visitors alike to take proactive measures against sun damage while enjoying the beautiful outdoor scenery that Cacapava do Sul has to offer.
The UV Index data for the day reveals a progressive ascent in solar intensity, starting from a peaceful 0 at 07:00. As the sun rises higher in the sky, it peaks at 5 between 12:00 and 13:00, indicating a moderate risk for sun exposure. 11:00 and 10:00 see values of 4 and 2 respectively, signaling an increasing need for sun safety measures. As the afternoon unfolds, readings gently descend, dropping back to 3 by 15:00 and tapering to 0 after 18:00. Overall, it’s a day where vigilance is key during the midday hours, while mornings and evenings offer a respite from harmful rays.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 2 | low | 45 min |
| 10:00 | 4 | moderate | 30 min |
| 11:00 | 6 | high | 25 min |
| 12:00 | 7 | high | 25 min |
| 13:00 | 7 | high | 25 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 | 1 | low | 45 min |
| 19:00 | 0 | low | 45 min |
The UV Index experiences significant seasonal fluctuations, peaking during the winter and late fall months. January, February, October, November, and December all reflect an extreme exposure category with UV Index values reaching 14 to 15 and a minimal burn time of just 10 minutes. March adds to this high-risk period with an index of 12. The spring month of April drops slightly to a very high exposure category with an index of 9 and a burn time of 15 minutes, while May sees a reduction to high (index of 6) and a longer burn time of 25 minutes. In the summer, the UV risk lowers somewhat, with June and July categorized as moderate (UV Index 4-5 and burn times of 30 minutes), but returns to high in August with an index of 7. September bounces back to very high at 9. It's essential for both visitors and residents to be aware that the highest risk months for UV exposure are from January to March and October to December. Protection against UV radiation, including using broad-spectrum sunscreen, wearing protective clothing, and seeking shade during peak hours, is highly recommended during these times to reduce the risk of skin damage.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cacapava do Sul | 14 | 14 | 12 | 9 | 6 | 4 | 5 | 7 | 9 | 12 | 14 | 15 |
| 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 |