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UV Index in Calca, Peru

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents and visitors in Calca, Peru, where the sun can be intense, especially during midday hours. Awareness of UV levels not only helps in preventing sunburn but also plays a significant role in maintaining long-term skin health. Calca's Cfb climate, marked by high altitudes and clear skies, often results in elevated UV exposure, especially between 10 AM and 2 PM, when the index peaks alarmingly at 13. By keeping a close eye on the UV Index, individuals can better protect themselves and enjoy the beautiful surroundings safely.

Hourly UV Index in Calca

The UV Index data reveals a clear peak of sun intensity throughout the day. At 12:00 PM, the UV Index reaches its maximum level of 13, indicating the highest risk of harm from unprotected sun exposure. The morning starts off mild, with a UV Index of 1 at 07:00 and gradually escalates to 6 by 09:00, making it essential to wear sunscreen. As the clock strikes 11:00 AM, the intensity hits 12, urging everyone to seek shade. The afternoon sees a decline, dipping to 5 at 15:00 and falling further to 1 by 17:00, before gently fading into the evening with no UV risk from 18:00 onward. Plan outdoor activities wisely, especially between 10:00 AM and 2:00 PM, to ensure safety under the sun!

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
09:006high25 min
10:009very high15 min
11:0012extreme10 min
12:0013extreme10 min
13:0011extreme10 min
14:008very high15 min
15:005moderate30 min
16:002low45 min
17:001low45 min
18:000low45 min
19:000low45 min

Monthly UV Index Trends in Calca

Throughout the year, UV Index levels remain consistently high, with extreme exposure categories prevailing from January to December. Notably, November poses the highest risk, registering a UV Index of 23, while February, March, and April maintain a UV Index of 19. The burn time across all months is remarkably brief at just 10 minutes, indicating that prolonged exposure can lead to serious skin damage. Visitors and residents are strongly advised to take precautions, including wearing protective clothing, applying broad-spectrum sunscreen regularly, and seeking shade during peak sunlight hours, particularly during the high-risk months of November and February. Staying vigilant about UV protection year-round is essential to safeguard skin health.

Monthly Maximum UV Index for Calca, Peru

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Calca. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec191919171411131416182318
Data source: Statistical UV Index data for Calca, 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 Calca UV Index with Other Peru Cities

The table above highlights how UV exposure in Calca compares to other major locations across Peru. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.
Calca's solar exposure compared to other cities in Peru. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Callao UVI14141412109101112131413
Lima UVI14141412109101112131413
Trujillo UVI151515141211111113141414
Chiclayo UVI141515141311111215141413
Arequipa UVI181717151210111315171817
Calca191919171411131416182318