UV Index in Porto Murtinho, Brazil

Last updated: July 2, 2025

In Porto Murtinho, Brazil, being aware of the UV Index is crucial for maintaining skin health and preventing sunburn. With a tropical climate that often sees high UV exposure, understanding the day's UV levels enables residents and visitors to take necessary precautions when enjoying the outdoors. The UV Index can peak at a significant 8 around midday, indicating a high risk of harm from unprotected sun exposure. By staying informed, you can effectively safeguard your skin while embracing the sun-soaked beauty of this vibrant town.

Hourly UV Index in Porto Murtinho

As the sun rises, the UV Index begins its ascent, starting at a mild 1 at 07:00. By 08:00, it gently climbs to 2, but it's not until 09:00 that it hits 3, signaling a clearer sky. The index takes a notable leap at 10:00, reaching a brisk 5, and peaks at 12:00 with a striking 8—the ideal time to seek shade or apply sunscreen! As the afternoon wears on, the index falls back to 7 at 13:00, and then gradually drops to 5 by 14:00. As the sun starts to set, there's a further decline, leaving the evening with a relaxed 1 at 16:00 and tapering off to 0 by 19:00. This detailed hour-by-hour progression highlights the importance of sun safety during the peak hours of the day!

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
08:002low45 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 Porto Murtinho

The UV Index exhibits significant seasonal variations, with the highest values occurring during the winter and early spring months. From January to April, the UV Index remains at an extreme level (15-11), indicating a very short burn time of just 10 minutes. This exposure continues into September through November, where levels drop slightly but remain in the extreme category (14-11). The months of May to August see a gradual decrease, with UV Index values classified as very high (8-9) and slightly longer burn times of 15 to 25 minutes. Visitors and residents are advised to take precautionary measures during the high-risk months of January to April and September to November. It’s crucial to wear protective clothing, apply sunscreen regularly, and seek shade during peak sunlight hours to mitigate the risks associated with high UV exposure.

Monthly Maximum UV Index for Porto Murtinho, Brazil

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Porto Murtinho. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec15151311878911131415
Data source: Statistical UV Index data for Porto Murtinho, 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 Porto Murtinho UV Index with Other Brazil Cities

The table above highlights how UV exposure in Porto Murtinho 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.
Porto Murtinho's solar exposure compared to other cities in Brazil. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Rio de Janeiro UVI15141310767911121315
Sao Paulo UVI16151211867911131415
Porto Murtinho15151311878911131415
Belo Horizonte UVI171614129781012131416
Salvador UVI1414141310991212151514
Fortaleza UVI141415151311111213131313