UV Index in Bastos, Brazil

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents and visitors in Bastos, Brazil, where the sun’s intensity can pose significant risks to skin health. With a climate categorized as Aw, Bastos experiences high UV levels, especially during midday hours, making it essential to monitor these levels for effective sunburn prevention. By being aware of the UV Index, individuals can take proactive measures to protect themselves, reducing the risk of skin damage and other complications associated with excessive sun exposure. Keep an eye on the UV readings to enjoy Bastos's sunny days safely!

Hourly UV Index in Bastos

Throughout the day, the UV Index showcases a dynamic pattern of intensity. Starting at a gentle 1 by 07:00, the index gradually rises, reaching a moderate 2 by 09:00. As the sun climbs higher, a notable increase occurs, peaking at an elevated 7 from 12:00 to 13:00, marking the day's most intense UV exposure. The index then begins its descent, dipping to 4 by 15:00 and further down to 2 by 16:00. As evening approaches, the UV risk diminishes, with values dropping to 0 at 18:00 and remaining low for the rest of the evening. It's essential to stay protected during those peak midday hours when UV exposure can be at its strongest!

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
09:002low45 min
10:004moderate30 min
11:006high25 min
12:007high25 min
13:007high25 min
14:006high25 min
15:004moderate30 min
16:002low45 min
17:001low45 min
18:000low45 min
19:000low45 min

Monthly UV Index Trends in Bastos

Throughout the year, UV Index values exhibit significant variability, with the highest levels typically observed in the winter and late fall months. Notably, January, February, and March all carry an extreme exposure category with a UV Index of 15, while December peaks at 16, also within the extreme range. High-risk months include September and November, seeing extreme levels at 11 and 14, respectively. Visitors and residents are strongly advised to take precautions during these high-risk periods, particularly between January and March, ensuring appropriate sun protection measures such as wearing sunscreen, protective clothing, and seeking shade, especially during midday hours when the UV exposure is most intense.

Monthly Maximum UV Index for Bastos, Brazil

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Bastos. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec151513118771011141416
Data source: Statistical UV Index data for Bastos, 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 Bastos UV Index with Other Brazil Cities

The table above highlights how UV exposure in Bastos 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.
Bastos's solar exposure compared to other cities in Brazil. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Rio de Janeiro UVI15141310767911121315
Sao Paulo UVI16151211867911131415
Bastos151513118771011141416
Belo Horizonte UVI171614129781012131416
Salvador UVI1414141310991212151514
Fortaleza UVI141415151311111213131313