UV Index in Calca, Peru

Last updated: June 2, 2025

In Calca, Peru, staying informed about the UV Index is crucial for protecting your skin and overall health. With intense midday sun exposure reaching UV levels of 11 during the peak hours, understanding these levels can help prevent painful sunburns and long-term skin damage. The region's Cfb climate brings with it a unique set of UV exposure risks, particularly as you enjoy outdoor activities throughout the year. By monitoring the UV Index, you can take necessary precautions to ensure your time in the sun is both enjoyable and safe.

Hourly UV Index in Calca

The UV Index today starts off modestly at 1 by 07:00, but as the sun rises higher, it peaks dramatically at 11 between 11:00 and 12:00, indicating a period of high risk for harm from unprotected sun exposure. At 09:00, it reaches 6, prompting a bit more caution, while 10:00 brings a significant jump to 9. As the afternoon unfolds, the index begins to decline, dropping to 4 by 15:00 and tapering off to 1 by 17:00. After 18:00, the UV Index falls to 0, ensuring that later in the day, the risk of UV exposure diminishes completely. Stay protected 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.
Time	UVI	Category	Time to Burn
07:00	1	low	45 min
08:00	3	moderate	30 min
09:00	6	high	25 min
10:00	9	very high	15 min
11:00	11	extreme	10 min
12:00	11	extreme	10 min
13:00	10	very high	15 min
14:00	7	high	25 min
15:00	4	moderate	30 min
16:00	2	low	45 min
17:00	1	low	45 min
18:00	0	low	45 min
19:00	0	low	45 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.

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.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Callao UVI	14	14	14	12	10	9	10	11	12	13	14	13
Lima UVI	14	14	14	12	10	9	10	11	12	13	14	13
Trujillo UVI	15	15	15	14	12	11	11	11	13	14	14	14
Chiclayo UVI	14	15	15	14	13	11	11	12	15	14	14	13
Arequipa UVI	18	17	17	15	12	10	11	13	15	17	18	17
Calca	19	19	19	17	14	11	13	14	16	18	23	18