Last updated: July 2, 2025
Understanding the UV Index is crucial for residents and visitors in Goianira, Brazil, where the sun shines brightly, especially in the warm Aw climate. Awareness of UV levels plays a vital role in sunburn prevention and maintaining overall skin health. With daily peaks reaching 9 between 12 PM and 1 PM, it's essential to take precautions during these hours to protect yourself from harmful rays. Knowledge of these UV fluctuations not only safeguards your skin but also enhances your outdoor experience in this vibrant locale, making sun safety a priority as you enjoy all that Goianira has to offer.
As the sun rises, the UV Index starts off low, peaking at just 1 by 8 AM. However, as the day progresses, intensity increases, reaching a notable 6 by 10 AM and soaring to its maximum of 9 from noon to 1 PM. This peak signifies a time when sun safety becomes essential, urging you to seek shade and apply sunscreen. The afternoon sees a gradual decline with the index dropping to 5 by 3 PM and lower values as the sun begins its descent. By ~4 PM, the index falls to 2, and soon after, it returns to 1 by 5 PM, fading to 0 in the evening. Overall, it’s wise to take precautions during the midday hours when the UV levels are at their 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 | 6 | high | 25 min |
11:00 | 8 | very high | 15 min |
12:00 | 9 | very high | 15 min |
13:00 | 9 | very high | 15 min |
14:00 | 7 | high | 25 min |
15:00 | 5 | 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 the region exhibits significant seasonal variation, with the highest values occurring from January to April, where it consistently reaches an extreme level of around 16 to 13. This period is critical, as the burn time is only 10 minutes, placing visitors and residents at increased risk for skin damage. In contrast, May through July sees a slight decline in UV intensity, falling to a very high range of 10 to 9, with burn times extending to 15 minutes. However, it is important to note that by August to October, the UV levels surge again to extreme, particularly in August and October with indices of 11 and 15 respectively, and a return to a 10-minute burn time. Lastly, November and December carry the highest UV levels of the year at 16, reinforcing the need for protective measures during these months. Consequently, it is crucial for both visitors and residents to remain vigilant and take protective action during these high-risk months, such as wearing sunscreen, hats, and sunglasses to mitigate UV exposure.
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 |
Salvador UVI | 14 | 14 | 14 | 13 | 10 | 9 | 9 | 12 | 12 | 15 | 15 | 14 |
Goianira | 16 | 15 | 14 | 13 | 10 | 9 | 9 | 11 | 13 | 15 | 16 | 16 |
Fortaleza UVI | 14 | 14 | 15 | 15 | 13 | 11 | 11 | 12 | 13 | 13 | 13 | 13 |