Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors of Sao Sebastiao do Paraiso, Brazil, where the sun's rays can be particularly strong due to its Cwa climate. Being aware of UV levels helps in preventing sunburn and protecting skin health, making it essential for outdoor activities. With UV Index readings peaking at 7 around noon, it's important to take precautions during these hours to reduce the risk of harmful effects from overexposure to sunlight. By staying informed about daily UV levels, you can enjoy the beautiful Brazilian sun while keeping your skin safe and healthy.
The UV Index for the day reveals a significant shift as the sun rises. Starting at a low 1 at 07:00 and 08:00, the intensity gradually ramps up, peaking at 7 during 12:00 and 13:00—prime time to protect your skin! As the afternoon progresses, it dips to 5 by 14:00, then descends further to 3 at 15:00. The latter part of the day sees a decline in UV exposure, returning to 1 by 16:00 and eventually dropping to 0 by 18:00 and 19:00. Be mindful of the midday sun; it's wise to wear sunscreen and seek shade when the UV Index is 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 | 5 | moderate | 30 min |
| 11:00 | 6 | high | 25 min |
| 12:00 | 7 | high | 25 min |
| 13:00 | 7 | high | 25 min |
| 14:00 | 5 | moderate | 30 min |
| 15:00 | 3 | moderate | 30 min |
| 16:00 | 1 | low | 45 min |
| 17:00 | 1 | low | 45 min |
| 18:00 | 0 | low | 45 min |
| 19:00 | 0 | low | 45 min |
During the year, the UV Index fluctuates significantly, with the highest levels occurring in the winter and early spring months. Notably, January, February, and March exhibit an extreme UV Index of 16, necessitating a burn time of just 10 minutes for unprotected skin. Following this, April sees a slight decrease with an index of 12. The risk remains very high in May and July, with indices of 9 and 8, respectively. However, August also maintains a very high risk at 10, while September returns to an extreme level of 12. Consequently, October and November see an extreme index of 14, before winter resumes with December's extreme 16. Visitors and residents should exercise extreme caution and take appropriate sun protection measures, especially from January through April and again in September to November, as these are high-risk months for UV exposure. Always wear sunscreen, hats, and protective clothing, and limit sun exposure during peak hours to safeguard against 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 |
| Sao Sebastiao do Paraiso | 16 | 16 | 13 | 12 | 9 | 7 | 8 | 10 | 12 | 14 | 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 |