Last updated: June 2, 2025
In Sirinhaem, Brazil, understanding the UV Index is crucial to safeguarding your health under the sun. With its tropical climate and high UV exposure, awareness of UV levels helps prevent sunburn and long-term skin damage. Peak UV indices often reach alarming heights, such as 11 around noon, making it essential to take precautions. By staying informed about these daily variations, you can enjoy the beautiful coastal scenery while protecting your skin and overall well-being.
The UV Index starts off relatively mild at 2 at 7:00 AM, but quickly ramps up as the day progresses. By 9:00 AM, it spikes to 7, reaching a peak of 11 at 11:00 AM, indicating a high risk of harm from unprotected sun exposure. As the afternoon unfolds, the index gradually declines—dropping to 5 by 2:00 PM and then further down to 1 by 4:00 PM. By the time the sun sets, the UV Index has diminished to 0, signifying a safe environment for evening activities. To protect your skin, it’s essential to take precautions during the peak hours between 10:00 AM and 2:00 PM!
Time | UVI | Category | Time to Burn |
---|---|---|---|
07:00 | 2 | low | 45 min |
08:00 | 4 | moderate | 30 min |
09:00 | 7 | high | 25 min |
10:00 | 9 | very high | 15 min |
11:00 | 11 | extreme | 10 min |
12:00 | 10 | very high | 15 min |
13:00 | 8 | very high | 15 min |
14:00 | 5 | 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 UV Index throughout the year displays extreme levels, particularly from January through November, with values consistently between 12 and 15, indicating a high risk of harm from unprotected sun exposure. Notably, the highest UV Index occurs in March at 15, closely followed by February and April at 14. Visitors and residents should take special care during these high-risk months and consistently throughout the year, ensuring they wear appropriate sun protection, including sunscreen, hats, and UV-protective clothing. With a burn time of only 10 minutes, it is crucial to limit sun exposure, especially during midday when UV radiation is at its peak.
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 |
Sirinhaem | 14 | 14 | 15 | 14 | 12 | 11 | 11 | 12 | 13 | 13 | 14 | 14 |
Fortaleza UVI | 14 | 14 | 15 | 15 | 13 | 11 | 11 | 12 | 13 | 13 | 13 | 13 |