UV Index in Cunha, Brazil

Last updated: July 2, 2025

In Cunha, Brazil, understanding the UV Index is crucial for safeguarding your skin health and preventing sunburn. With its Cfa climate, characterized by warm summers and mild winters, residents and visitors alike should be particularly vigilant during peak hours when UV levels can soar to an 8 by midday. This heightened exposure increases the risk of skin damage, making it essential to stay informed and take protective measures. By monitoring the UV Index, you can enjoy the sunny delights of Cunha while keeping your skin protected and healthy.

Hourly UV Index in Cunha

The UV Index data paints a vivid picture of sun exposure throughout the day. In the early hours, from 7:00 AM to 9:00 AM, the UV Index remains low, peaking at only 1. However, as the sun climbs higher, from 10:00 AM to 12:00 PM, it surges to 8 at noon, marking the peak of solar intensity. The afternoon sees a slight decline, with the index dropping to 5 at 2:00 PM and further to 3 by 3:00 PM. As evening approaches, the UV levels plummet back to a safe 1 by 4:00 PM, and the sun's diminishing rays result in a 0 by 6:00 PM, signaling a welcome reprieve from UV exposure. Essentially, the peak intensity occurs during midday hours, highlighting the importance of seeking shade and wearing protection during these critical 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
08:001low45 min
09:003moderate30 min
10:005moderate30 min
11:007high25 min
12:008very high15 min
13:007high25 min
14:005moderate30 min
15:003moderate30 min
16:001low45 min
17:001low45 min
18:000low45 min
19:000low45 min

Monthly UV Index Trends in Cunha

During the year, the UV Index exhibits significant fluctuations, with the highest risk months occurring from January to April and again in September to November, consistently classified as having an extreme exposure category. In these months, the burn time is a mere 10 minutes, indicating the need for vigilant sun protection. Notably, May to August sees slightly lower UV levels, moving into the very high category, with burn times extending to 15-25 minutes. To ensure safety, both visitors and residents should prioritize wearing sunscreen, protective clothing, and seeking shade during peak sun hours, especially in the high-risk months, to minimize the risk of UV-related harm.

Monthly Maximum UV Index for Cunha, Brazil

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Cunha. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec161613118681012141416
Data source: Statistical UV Index data for Cunha, 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 Cunha UV Index with Other Brazil Cities

The table above highlights how UV exposure in Cunha 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.
Cunha's solar exposure compared to other cities in Brazil. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Rio de Janeiro UVI15141310767911121315
Sao Paulo UVI16151211867911131415
Cunha161613118681012131416
Belo Horizonte UVI171614129781012131416
Salvador UVI1414141310991212151514
Fortaleza UVI141415151311111213131313