UV Index in Santiago, Peru

Last updated: May 3, 2025

In Santiago, Peru, being aware of the UV Index is crucial for protecting your skin and overall health. Understanding UV levels helps prevent sunburn and long-term skin damage, making it an essential part of daily planning, especially in a city known for its high altitude and intense sunlight. With a climate that often sees peaks in UV exposure—reaching a daunting UV Index of 13 around midday—it’s vital for residents and visitors alike to take proactive measures against harmful rays. Stay informed, stay protected, and enjoy your time under the sun responsibly!

Hourly UV Index in Santiago

As the sun rises higher, the UV Index showcases its dramatic dance throughout the day. Starting at a mild 1 at 07:00, the index climbs swiftly, hitting 3 by 08:00, then skyrocketing to a sizzling 10 at 10:00. The peak occurs at 11:00 and 12:00, both boasting a striking 13, making midday the most crucial time for sun safety. A gradual decline follows, with the index dropping to 4 by 15:00 and further dwindling to 1 by 17:00. As the day winds down, and night approaches, the UV levels settle to 0, reminding us that the sun's intensity can vary greatly. Stay sun-smart during those peak hours to enjoy the outdoors safely!

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	7	high	25 min
10:00	10	very high	15 min
11:00	13	extreme	10 min
12:00	13	extreme	10 min
13:00	11	extreme	10 min
14:00	8	very high	15 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 Santiago

Throughout the year, UV Index values remain consistently high, with extreme exposure categories recorded from January through December. The months of December (UV Index 22), January (UV Index 19), February (UV Index 19), November (UV Index 19), and March (UV Index 18) are notably high-risk, where even short sun exposure can cause burns in just 10 minutes. Visitors and residents should take precautions year-round, including wearing sunscreen with high SPF, donning protective clothing, and seeking shade during peak sun hours to mitigate the risks associated with prolonged UV exposure. Prioritizing skin protection is crucial, especially during these high-risk months.

Monthly Maximum UV Index for Santiago, Peru

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

The table above highlights how UV exposure in Santiago 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.

Santiago'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
Santiago	19	19	18	17	14	11	13	14	16	18	19	22