UV Index in Santiago, Mexico

Last updated: June 2, 2025

Understanding the UV Index in Santiago, Mexico, is essential for protecting your skin and overall health. With the region's BSk climate, characterized by dry and sunny conditions, awareness of UV levels can help prevent sunburn and long-term skin damage. The UV Index peaking at 14 during midday signifies a critical risk, making it crucial for residents and visitors to take precautionary measures. Knowing when to seek shade or apply sunscreen can make all the difference in enjoying the beautiful outdoors safely. Stay informed, keep your skin healthy, and enjoy the vibrant sunlight that Santiago has to offer!

Hourly UV Index in Santiago

The UV Index today follows a dynamic trend, starting off with low levels early in the morning at 1 from 07:00 to 08:00. By 09:00, it escalates to 2, but the real sun-soaked action kicks in after 10:00, reaching a moderate level of 5. The peak arrives between 12:00 and 14:00, where it soars to an intense 14, signaling a high-risk period for sun exposure. As the afternoon fades, the index gradually declines, hitting 10 at 16:00 before dipping back down to a safe 1 by 19:00. It's crucial to take precautions, particularly during the midday sun, when the UV intensity 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	1	low	45 min
09:00	2	low	45 min
10:00	5	moderate	30 min
11:00	9	very high	15 min
12:00	12	extreme	10 min
13:00	14	extreme	10 min
14:00	14	extreme	10 min
15:00	12	extreme	10 min
16:00	10	very high	15 min
17:00	6	high	25 min
18:00	3	moderate	30 min
19:00	1	low	45 min

Monthly UV Index Trends in Santiago

The UV Index demonstrates significant seasonal changes, peaking during the late spring and summer months. From January to March, the index starts high but quickly escalates, reaching its maximum of 15 in both April and May. The months of February to October pose the highest risk, with an extreme exposure category, where the burn time is notably short at 10 minutes. Visitors and residents should be particularly vigilant during these high-risk months, especially from February to October, and adopt protective measures such as wearing sunscreen, hats, and protective clothing. As we approach the fall and winter months, the UV risk decreases but remains notably high in November and December. It is essential to stay informed and protect your skin year-round.

Monthly Maximum UV Index for Santiago, Mexico

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 Mexico Cities

The table above highlights how UV exposure in Santiago compares to other major locations across Mexico. 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 Mexico. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Guadalajara UVI	9	11	14	14	14	13	13	13	13	12	9	8
Santiago	9	11	14	15	15	14	14	14	14	12	10	8
Iztapalapa UVI	10	12	14	15	14	14	14	14	14	12	10	8
Ecatepec de Morelos UVI	10	12	14	15	15	14	14	13	14	12	10	8
Mexico City UVI	10	12	14	15	15	14	14	13	14	12	10	8
Puebla UVI	10	12	14	15	15	15	15	14	14	13	10	9