Last updated: June 2, 2025
Understanding the UV Index is crucial for residents and visitors of Porto Seguro, Brazil, as it provides essential information about harmful sun exposure that can lead to sunburn and long-term skin damage. With its tropical climate and high UV levels, particularly peaking around midday, being aware of the UV Index helps individuals take necessary precautions to protect their skin health. The UV Index in Porto Seguro can reach as high as 8 between 11:00 AM and 12:00 PM, indicating a very high risk of harm from unprotected sun exposure. By monitoring these levels, you can enjoy the beautiful beaches and vibrant culture of Porto Seguro while minimizing your risk of sun-related health issues.
At dawn, the UV Index starts off low at 1 at 7:00 AM, gradually climbing to a moderate 2 by 8:00 AM. As the sun rises higher in the sky, the UV intensity peaks with values soaring to 8 at both 11:00 AM and 12:00 PM, indicating a need for sun protection. The index then begins to dip, falling to 7 at 1:00 PM and further down to 4 by 2:00 PM, revealing a gradual reduction in UV exposure as the afternoon progresses. By mid-afternoon, the levels continue to decline, resting at 2 by 3:00 PM and eventually returning to 1 by 4:00 PM. As the day winds down into the evening, UV levels drop to 0 by 6:00 PM, signaling a safe time to enjoy the outdoors without concern for UV exposure.
| 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 | 7 | 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 | 4 | moderate | 30 min |
| 15:00 | 2 | low | 45 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 |
The seasonal UV index data highlights significant variations in UV exposure throughout the year, with consistently high to extreme levels from January to December. The high-risk months for UV exposure are January, February, and November, all with an extremely high UV Index of 15, necessitating precautionary measures. Visitors and residents are advised to take protective actions during these months, such as wearing sunblock and protective clothing, and limiting sun exposure to 10 minutes to avoid skin damage. Other months with elevated UV risk include March through April and August through October, where the UV index remains in the extreme to very high categories. To ensure safety, individuals should always check local UV forecasts and adjust outdoor activities accordingly.
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 |
| Porto Seguro | 15 | 15 | 14 | 12 | 10 | 8 | 9 | 11 | 12 | 14 | 15 | 15 |
| 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 |