UV Index in Entre Rios, Brazil

Last updated: July 2, 2025

Understanding the UV Index is essential for the residents of Entre Rios, Brazil, a region blessed with a warm climate that comes with its own set of sun exposure risks. Awareness of UV levels not only helps in preventing painful sunburns but also plays a crucial role in maintaining long-term skin health. With the UV Index peaking at 10 during midday hours, the importance of protective measures cannot be overstated. Whether you're enjoying the outdoors or simply going about your daily activities, staying informed about UV exposure is key to enjoying the sunny days safely in Entre Rios.

Hourly UV Index in Entre Rios

The UV Index throughout the day showcases a notable peak from 11:00 AM to 12:00 PM, where it reaches a high of 10, indicating very high levels of UV radiation and a strong need for sun protection. This intense sunlight starts to build up at 9:00 AM with a reading of 5, escalating to 8 by 10:00 AM. As the afternoon unfolds, the index gradually declines, dropping to 6 at 2:00 PM, followed by a significant decrease back to 3 by 3:00 PM. By the evening, the UV levels return to safe numbers, tapering off to 1 at 4:00 PM and 0 by 6:00 PM, prompting a welcome end to the day’s sun exposure. Always remember to take precautions 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
10:008very high15 min
11:0010very high15 min
12:0010very high15 min
13:008very high15 min
14:006high25 min
15:003moderate30 min
16:001low45 min
17:001low45 min
18:000low45 min
19:000low45 min

Monthly UV Index Trends in Entre Rios

Throughout the year, UV radiation levels remain notably high, with the most extreme months identified as November (UV Index 15), followed closely by January, February, March, April, August, September, and October (UV Index 14). During these months, the burn time is as short as 10 minutes, necessitating heightened awareness and protection. Conversely, June and July see a slight reduction in risk (UV Index 9 and 10, respectively), extending burn time to 15 minutes. Residents and visitors are strongly advised to take precautionary measures year-round, wearing sunscreen, protective clothing, and sunglasses, especially during the high-risk months to minimize the likelihood of skin damage from UV exposure.

Monthly Maximum UV Index for Entre Rios, Brazil

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Entre Rios. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec14141413119101213141514
Data source: Statistical UV Index data for Entre Rios, 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 Entre Rios UV Index with Other Brazil Cities

The table above highlights how UV exposure in Entre Rios 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.
Entre Rios'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
Entre Rios14141413119101213141514
Fortaleza UVI141415151311111213131313