Last updated: May 3, 2025
Understanding the UV Index in Guarapuava, Brazil, is crucial for safeguarding your skin and overall health against the sun’s harmful rays. As a city situated in a Cfa climate zone, Guarapuava experiences significant UV fluctuations throughout the day, with peak levels reaching a formidable 7 between 12:00 PM and 1:00 PM. By staying informed about UV levels, you can take proactive measures to prevent sunburn and reduce the risk of skin damage. As you enjoy the beautiful outdoor activities that this vibrant region offers, being UV aware can make all the difference for your skin’s future!
Throughout the day, the UV Index showcases a dynamic pattern of intensity. Starting at a gentle 1 by 07:00, the index gradually rises, reaching a moderate 2 by 09:00. As the sun climbs higher, a notable increase occurs, peaking at an elevated 7 from 12:00 to 13:00, marking the day's most intense UV exposure. The index then begins its descent, dipping to 4 by 15:00 and further down to 2 by 16:00. As evening approaches, the UV risk diminishes, with values dropping to 0 at 18:00 and remaining low for the rest of the evening. It's essential to stay protected during those peak midday hours when UV exposure can be at its strongest!
| 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 | 0 | low | 45 min |
| 19:00 | 0 | low | 45 min |
Throughout the year, the UV Index in this region exhibits significant seasonal changes, with the highest levels occurring from January to March and during September and October. The months of January, February, November, and December experience an extreme UV Index of 15, with a dangerously short burn time of just 10 minutes. March and April also remain critical months with UV levels of 13 and 11 respectively. The warmer months of May to August see a decline in intensity but still pose risks, particularly in May and August, where the exposure is classified as very high with a burn time of 15 minutes. Visitors and residents are strongly advised to take precautions year-round, especially between January and April and again in September and October, by applying broad-spectrum sunscreen, wearing protective clothing, and limiting sun exposure during peak hours to reduce the risk of harmful UV effects.
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 |
| Guarapuava | 15 | 15 | 13 | 11 | 8 | 6 | 6 | 9 | 11 | 14 | 15 | 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 |