Last updated: May 3, 2025
In Ponta Grossa, Brazil, being aware of the UV Index is crucial for protecting your skin and overall health. Understanding UV levels helps prevent sunburn and reduces the risk of skin cancer, making it essential knowledge for residents and visitors alike. The city, characterized by a Cfa climate, often experiences significant UV exposure, particularly during midday hours when indices soar to an 8—highlighting the need for sun safety measures. Stay informed and shield yourself from the sun’s harmful rays while enjoying the beauty of Ponta Grossa!
At sunrise, the UV Index begins at a gentle 1 at 07:00, rising gradually as the sun climbs higher. By 09:00, it reaches 3, indicating a moderate level of UV radiation. The heat of the day peaks at 12:00 with a high of 8, suggesting it’s time to seek shade or apply sunscreen. As the afternoon progresses, the index slightly drops to 7 at 13:00 and continues to decline, settling at 3 by 15:00. As the sun starts to set, the risk diminishing to 1 at 17:00 and finally dropping to 0 by 18:00, signaling a safer time for outdoor activities as the day winds down. Be mindful of the midday sun to protect your skin!
| 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 | 5 | moderate | 30 min |
| 11:00 | 7 | high | 25 min |
| 12:00 | 8 | very high | 15 min |
| 13:00 | 7 | high | 25 min |
| 14:00 | 6 | high | 25 min |
| 15:00 | 3 | 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 variations, peaking during the winter months with extreme levels consistently above 15 from January through April, where burn time is a mere 10 minutes. As spring transitions into summer, the index drops slightly in May to 8 (very high), allowing for a longer burn time of 15 minutes. However, during June and July, the index remains high at 6 and 7, respectively, granting 25 minutes of exposure before burning occurs. Notably, as summer gives way to autumn, the UV levels spike again in September and October, returning to extreme levels, requiring cautious exposure of just 10 minutes. The trend of high exposure continues in November and December, both maintaining an index of 15 and 16 along with minimal burn times. Residents and visitors should take precautions during high-risk months (January to April, September, October, and November) by using sunscreen, wearing protective clothing, and seeking shade to minimize exposure and reduce the risk of 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 |
| Ponta Grossa | 16 | 15 | 13 | 11 | 8 | 6 | 7 | 9 | 11 | 14 | 15 | 16 |
| 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 |