Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors in Guarapari, Brazil, where the sun shines brightly throughout the year. Knowing the levels of ultraviolet radiation helps in preventing sunburn and promoting long-term skin health, vital for enjoying the beautiful beaches this coastal town has to offer. Guarapari's warm climate and its peak UV levels, reaching 8 around midday, pose significant exposure risks, making it essential to monitor the UV Index and take protective measures when outdoors. Stay informed and safeguard your skin while soaking up the sun!
As the sun rises, the UV Index begins its ascent, starting at a gentle 1 by 7:00 AM. By 8:00 AM, it nudges up to 2, signaling a mild increase in UV exposure. The intensity heats up quickly, reaching a moderate 4 by 9:00 AM, before hitting its peak of 8 from 11:00 AM to 12:00 PM. This is the prime time for sun safety awareness! After noon, the UV Index gradually declines; by 3:00 PM, it recedes to 3, and as the day wanes, it drops significantly to 1 by 4:00 PM. By evening, UV levels have diminished, reaching 0 by 6:00 PM, offering a reprieve from the sun’s rays.
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 2 | low | 45 min |
| 09:00 | 4 | moderate | 30 min |
| 10:00 | 6 | high | 25 min |
| 11:00 | 8 | very high | 15 min |
| 12:00 | 8 | very high | 15 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 |
Throughout the year, UV exposure in the region experiences significant fluctuations. The highest risk months, characterized by an extreme UV Index, are from January to April and then again in September through November, where the burn time is consistently around 10 minutes. In these months, residents and visitors should take extra precautions, such as wearing sunscreen and protective clothing, to prevent skin damage. Conversely, May and June see a dip into the very high to high categories, with burn times extending to 15 and 25 minutes respectively. While these months are slightly less intense, it’s still essential to remain vigilant about sun safety. As summer approaches with July and August maintaining very high levels, it’s imperative for everyone to remain protected outdoors. The UV Index begins to rise again in September, particularly noteworthy for its quick transition back to extreme levels. Overall, being aware of these seasonal UV changes can help safeguard health while enjoying outdoor activities year-round.
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 |
| Guarapari | 16 | 15 | 13 | 11 | 8 | 7 | 8 | 10 | 12 | 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 |