UV Index in Iacu, Brazil

Last updated: June 2, 2025

In Iacu, Brazil, understanding the UV Index is crucial for protecting your skin and maintaining overall health. With a tropical climate that can expose residents to high UV levels, awareness about the intensity of sunlight throughout the day is essential to prevent sunburn and long-term skin damage. As the UV Index in Iacu can peak at 9 during midday hours—exposing you to significant risks—it’s important to stay informed and take necessary precautions. By keeping an eye on UV levels, you can enjoy the sunny beauty of Iacu while ensuring your skin remains healthy and protected.

Hourly UV Index in Iacu

The UV Index throughout the day reveals a pronounced peak in sunlight intensity, especially between 11:00 AM and 1:00 PM, where it reaches a maximum of 9. This indicates the highest risk of harm from unprotected sun exposure during these hours. Starting from 8:00 AM, the index climbs steadily, highlighting the importance of sun safety measures as it reaches 5 at 9:00 AM and escalates to 7 by 10:00 AM. As the afternoon progresses, a noticeable decline occurs with values dropping to 5 at 2:00 PM and further falling to 3 by 3:00 PM, before tapering off to 1 by late afternoon. By 6:00 PM, the UV Index diminishes to 0, signifying safe conditions for outdoor activities. Remember to protect your skin during those peak hours!

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
TimeUVICategoryTime to Burn
07:001low45 min
08:003moderate30 min
09:005moderate30 min
10:007high25 min
11:009very high15 min
12:009very high15 min
13:008very high15 min
14:005moderate30 min
15:003moderate30 min
16:001low45 min
17:001low45 min
18:000low45 min
19:000low45 min

Monthly UV Index Trends in Iacu

The UV Index in this region demonstrates significant fluctuations throughout the year, with the highest readings occurring in the winter months of January to April, where levels reach 15 and are classified as extreme, resulting in a mere 10 minutes burn time. As spring transitions into summer, the index begins to decline slightly, hitting a low of 9 in June, before peaking again at 12 in August. Following summer, the index shows another increase in September and October, returning to extreme levels of 15 for November and 14 for December. High-risk months are predominantly from January to April and in August, as well as October to November, where vigilance is required for sun exposure. It is advisable for visitors and residents to take precautionary measures such as applying sunscreen, wearing protective clothing, and seeking shade during peak hours to mitigate the risks associated with high UV levels.

Monthly Maximum UV Index for Iacu, Brazil

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Iacu. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec15151413119101213151514
Data source: Statistical UV Index data for Iacu, based on information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

Compare Iacu UV Index with Other Brazil Cities

The table above highlights how UV exposure in Iacu compares to other major locations across Brazil. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.
Iacu's solar exposure compared to other cities in Brazil. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Rio de Janeiro UVI15141310767911121315
Sao Paulo UVI16151211867911131415
Belo Horizonte UVI171614129781012131416
Salvador UVI1414141310991212151514
Iacu15151413119101213151514
Fortaleza UVI141415151311111213131313