Last updated: July 2, 2025
In Itapema, Brazil, understanding the UV Index is crucial for maintaining skin health and preventing painful sunburns. With its Cfa climate, characterized by warm summers and mild winters, residents and visitors alike must be aware of varying UV levels throughout the day. For instance, during peak hours, the UV Index can reach levels as high as 5 around midday, signaling increased risks of skin damage. Staying informed about these UV levels helps you take necessary precautions, ensuring you enjoy the beautiful beaches and sunny days while protecting your skin from potential harm.
The UV Index throughout the day showcases an engaging pattern of intensity. Starting from a gentle 1 at 07:00 and 08:00, it gradually climbs, hitting 2 at 09:00. By 10:00, the index reaches 3, signaling a moderate risk for sun exposure. The sun’s intensity peaks between 11:00 and 13:00, peaking at a strong 5, urging everyone to take necessary precautions. As the afternoon progresses, the index slightly dips to 4 at 14:00, before tapering down to 3 at 15:00. As the sun begins to set, the UV levels descend, hitting 1 by 16:00, and finally dropping to 0 by 18:00, offering a soothing end to the day. It’s a reminder to enjoy the sun wisely, especially during those midday hours!
| 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 | 3 | moderate | 30 min |
| 11:00 | 5 | moderate | 30 min |
| 12:00 | 5 | moderate | 30 min |
| 13:00 | 5 | moderate | 30 min |
| 14:00 | 4 | 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 |
Throughout the year, UV Index levels show significant seasonal variation, peaking during the winter months. From January to March, the UV Index remains in the extreme category (15 to 12), with a rapid burn time of just 10 minutes, making these months high-risk for sun exposure. April sees a drop to very high (10), with a slightly longer burn time of 15 minutes, while May and June transition to a high category (7 and 6), with burn times increasing to 25 minutes. The risk decreases in July to moderate (5), with a burn time of 30 minutes, but by August and September, it returns to very high (8 and 10) with burn times decreasing again to 15 minutes. October through December reverts back to extreme conditions (14 and 15), once more allowing only 10 minutes of safe exposure. Residents and visitors should exercise caution during the high-risk months of January, February, March, October, November, and December by limiting sun exposure and using protective measures such as sunscreen, clothing, and seeking shade, especially during peak hours.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Itapema | 15 | 14 | 12 | 10 | 7 | 6 | 5 | 8 | 10 | 13 | 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 |