UV Index in Santa, Peru

Last updated: June 2, 2025

In Santa, Peru, awareness of the UV Index is crucial for maintaining skin health and preventing sunburn. With a predominantly BWh climate, residents and visitors alike experience significant UV exposure, especially during the midday hours when levels can peak as high as 11. Understanding UV levels helps individuals make informed decisions about sun protection, ensuring that outdoor activities remain enjoyable and safe. As Santa experiences intense sunlight, especially from 10 AM to 2 PM, being mindful of UV Index readings can significantly reduce the risks associated with prolonged sun exposure.

Hourly UV Index in Santa

As the day unfolds, the UV Index reaches its peak between 11:00 AM and 12:00 PM, soaring to a striking 11. The morning starts gently, with the index at a modest 1 by 7:00 AM, slowly climbing to 4 by 9:00 AM. The sun then intensifies, pushing the index to a strong 10 at 11:00 AM, signaling it's time to seek shade and protect your skin. By 2:00 PM, it begins to wane, dropping to 8, and further decreases to 5 by 3:00 PM. As the afternoon progresses, the index continues to fall, reaching 2 at 4:00 PM, and finally settling at 1 by 5:00 PM and 0 as the sun sets at 6:00 PM. Stay aware and shield yourself during those crucial midday 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	2	low	45 min
09:00	4	moderate	30 min
10:00	7	high	25 min
11:00	10	very high	15 min
12:00	11	extreme	10 min
13:00	10	very high	15 min
14:00	8	very high	15 min
15:00	5	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 Santa

Throughout the year, the UV Index reveals consistent extreme exposure levels, particularly from January to April, with values peaking at 16 in February and March. This extreme risk persists into the fall, with September and October also recording high indices of 14 and 15, respectively. May to August sees slightly lower yet still concerning levels, ranging from 11 to 13. Residents and visitors should remain vigilant during these high-risk months, especially from January to April, as the burn time is a mere 10 minutes across all months. It is essential to take protective measures, such as wearing sunscreen, hats, and protective clothing, to prevent harmful UV exposure throughout the year.

Monthly Maximum UV Index for Santa, Peru

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Santa. 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 Santa, 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 Santa UV Index with Other Peru Cities

The table above highlights how UV exposure in Santa 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.

Santa'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
Santa	15	16	16	15	13	11	12	12	14	15	14	15
Arequipa UVI	18	17	17	15	12	10	11	13	15	17	18	17