UV Index in San Miguel, Mexico

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents and visitors of San Miguel de Allende, Mexico, where the sun shines brightly in a Cwb climate zone. Being aware of UV levels helps prevent sunburn and promotes long-term skin health, particularly when the index can soar to a peak of 14 during midday hours. This vibrant city, known for its stunning architecture and outdoor culture, presents unique exposure risks, especially from late morning to early afternoon when UV radiation is most intense. Stay informed and protect your skin while enjoying all that sunny San Miguel has to offer!

Hourly UV Index in San Miguel

As the day unfolds, the UV Index rises dramatically, beginning with a gentle 0 at 07:00. By 09:00, it reaches a modest 2, but the real intensity kicks in as the sun climbs higher. At 11:00, the index peaks at an impressive 8, and then skyrockets to a maximum of 14 by 14:00. This mid-afternoon zenith signals a critical time for sun safety, with both 12:00 and 13:00 hovering at 11 and 13, respectively. As evening approaches, the UV exposure begins to wane, descending to a comfortable 6 at 17:00, before tapering off to a mere 1 by 19:00. Enjoy the sun, but remember to protect yourself during those peak 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	0	low	45 min
08:00	1	low	45 min
09:00	2	low	45 min
10:00	4	moderate	30 min
11:00	8	very high	15 min
12:00	11	extreme	10 min
13:00	13	extreme	10 min
14:00	14	extreme	10 min
15:00	12	extreme	10 min
16:00	9	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 San Miguel

Throughout the year, seasonal changes in UV Index indicate that visitors and residents should be particularly cautious during the high-risk months of February through October. During this period, the UV Index ranges from 11 to 15, corresponding to an extreme exposure category where the recommended burn time is just 10 minutes. The peak UV Index occurs in April at 15, while it remains consistently high from February to September. Conversely, the UV Index decreases significantly from November to January, falling into a very high category with a burn time of 15 minutes in November and December. It is crucial for individuals to take protective measures, such as wearing sunscreen, protective clothing, and seeking shade, particularly in the spring and summer months when the risk of sunburn is highest.

Monthly Maximum UV Index for San Miguel, Mexico

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

The table above highlights how UV exposure in San Miguel 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.

San Miguel'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
San Miguel	9	11	14	15	14	14	14	13	14	12	9	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