UV Index in Alto San Ildefonso, Peru

Last updated: May 3, 2025

Understanding the UV Index in Alto San Ildefonso, Peru, is crucial for maintaining optimal skin health and preventing sunburn. With its BWh climate boasting high altitude, the UV exposure levels here can spike dramatically—reaching a maximum of 12 around midday. This elevation means even short periods outdoors can lead to increased risk of harmful UV effects. Staying informed about daily UV levels is essential not only for safeguarding your skin but also for enhancing your overall outdoor experience—enjoying the beautiful surroundings while protecting yourself from the unseen dangers of the sun.

Hourly UV Index in Alto San Ildefonso

As the sun rises, the UV Index begins its ascent, starting at a modest 1 by 07:00. By 09:00, it climbs to 4, signaling a gentle boost in sun intensity. The midday zenith occurs at 12:00, where it peaks at a striking 12, urging sun lovers to protect their skin. The index remains high, measuring 11 at 13:00 before gradually descending through the afternoon, declining to 5 by 15:00 and further to 3 at 16:00. As evening approaches, the UV Index drops off sharply, hitting 0 by 18:00, providing a reminder that while midday sun can be fierce, safe sun practices are vital when exposure is at its highest.

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	8	very high	15 min
11:00	10	very high	15 min
12:00	12	extreme	10 min
13:00	11	extreme	10 min
14:00	9	very high	15 min
15:00	5	moderate	30 min
16:00	3	moderate	30 min
17:00	1	low	45 min
18:00	0	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Alto San Ildefonso

Throughout the year, the UV Index remains consistently high, reaching extreme levels across all months. The most critical months for UV exposure are January, February, and March, each showing a UV Index of 15, indicating a burn time of just 10 minutes. The risk remains high with values between 11 and 14 during the warmer months of April through September, and even as the year winds down, October and November are noteworthy with UV Indexes of 14 and 13, respectively. Given these conditions, it is crucial for both visitors and residents to take protective measures year-round, including applying sunscreen, wearing protective clothing, and seeking shade during peak sunlight hours to minimize skin damage and health risks.

Monthly Maximum UV Index for Alto San Ildefonso, Peru

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

The table above highlights how UV exposure in Alto San Ildefonso 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.

Alto San Ildefonso'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
Alto San Ildefonso	14	15	15	14	12	11	11	11	14	14	13	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