UV Index in San Antonio, Peru

Last updated: June 2, 2025

Understanding the UV Index is crucial for residents and visitors of San Antonio, Peru, as it plays a vital role in protecting skin health and preventing sunburns. With the region’s Af climate, characterized by warm temperatures and strong sunlight, knowing the UV levels throughout the day is essential for making informed decisions about outdoor activities. On sunny days, the UV Index can peak at a striking 12 between noon and 1 PM, highlighting the need for effective sun safety measures to minimize the risk of skin damage. Stay alert and safeguard your skin by familiarizing yourself with the UV Index in San Antonio!

Hourly UV Index in San Antonio

The UV Index throughout the day reveals a dynamic range of solar intensity, peaking at 12 around noon. Starting the day gently, the index registers a low 1 at 7:00 AM, gradually rising to 2 by 8:00 AM. As the sun climbs higher, it reaches 5 by 9:00 AM, then surges to a robust 11 by 11:00 AM, signaling higher caution for outdoor activities. The peak at midday is a daunting 12, urging everyone to seek shade and wear protective gear. The intensity begins to taper off in the afternoon, dropping back to 8 at 2:00 PM and further to 5 by 3:00 PM. By the late afternoon, the index drops significantly to 1 at 5:00 PM and settles at 0 by 6:00 PM, giving a gentle reminder that the sun's might can vary dramatically throughout 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.
Time	UVI	Category	Time to Burn
07:00	1	low	45 min
08:00	2	low	45 min
09:00	5	moderate	30 min
10:00	8	very high	15 min
11:00	11	extreme	10 min
12:00	12	extreme	10 min
13:00	11	extreme	10 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 San Antonio

Throughout the year, residents and visitors can expect extreme UV exposure, with the UV Index consistently high, ranging from 11 to 17. The months of January through April see the highest figures, particularly March at a UV Index of 17, indicating a very short burn time of just 10 minutes. Although the UV Index slightly decreases during the summer to 11-13, the high-risk months remain January through April. As such, it is crucial for individuals to take precautions year-round, especially during these peak months, by using broad-spectrum sunscreen, wearing protective clothing, and seeking shade whenever possible to minimize the risk of skin damage from harmful UV rays.

Monthly Maximum UV Index for San Antonio, Peru

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

The table above highlights how UV exposure in San Antonio 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.

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