UV Index in Goianira, Brazil

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.

Hourly UV Index in Goianira

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!

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
08:001low45 min
09:003moderate30 min
10:006high25 min
11:008very high15 min
12:009very high15 min
13:009very high15 min
14:007high25 min
15:005moderate30 min
16:002low45 min
17:001low45 min
18:000low45 min
19:000low45 min

Monthly UV Index Trends in Goianira

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.

Monthly Maximum UV Index for Goianira, Brazil

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Goianira. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec1615141310991113151616
Data source: Statistical UV Index data for Goianira, 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 Goianira UV Index with Other Brazil Cities

The table above highlights how UV exposure in Goianira 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.
Goianira'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
Goianira1615141310991113151616
Fortaleza UVI141415151311111213131313