UV Index in El Rosario, Mexico

Last updated: August 1, 2025

Understanding the UV Index in El Rosario, Mexico is crucial for maintaining skin health and preventing sunburn in this vibrant climate. With an average UV Index peaking at 13 during midday hours, it's essential for residents and visitors alike to stay informed about daily UV levels. This knowledge not only helps in planning outdoor activities but also in taking proactive measures against harmful exposure that can lead to skin damage. Given El Rosario's Cwa climate, characterized by sunny days and elevated UV risks, protecting yourself from the sun's rays is not just a recommendation—it's a necessity for your long-term health. Stay vigilant, check the UV Index regularly, and enjoy the outdoors safely!

Hourly UV Index in El Rosario

The UV Index today showcases a dramatic rise in sun exposure as the day progresses. Starting at 7:00 AM with a mild value of 1, the index climbs steadily to reach 4 by 9:00 AM. However, it's around 11:00 AM that the UV radiation peaks at 10, escalating further to a maximum of 12 at noon. The sun’s intensity continues to be fierce, reaching a high of 13 by 1:00 PM before gradually tapering off. From 2:00 PM, the index starts its descent, hovering at 12 and then dropping to 9 by 3:00 PM. As the afternoon transitions into evening, the UV levels diminish significantly, resting at 1 by 7:00 PM. For anyone spending time outdoors, taking precautions during the peak hours is crucial to ensure safety from harmful UV rays.

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	3	moderate	30 min
10:00	7	high	25 min
11:00	10	very high	15 min
12:00	12	extreme	10 min
13:00	13	extreme	10 min
14:00	12	extreme	10 min
15:00	9	very high	15 min
16:00	6	high	25 min
17:00	3	moderate	30 min
18:00	1	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in El Rosario

The UV Index experiences significant fluctuations throughout the year, with particularly high levels from February to October. The highest risk months are March through June, where the UV Index reaches extreme levels of 13 to 14, resulting in a burn time of just 10 minutes. During these months, it is crucial for visitors and residents to take precautions against UV exposure by wearing protective clothing, using sunscreen, and seeking shade during peak sunlight hours. The risk decreases in November and December, with UV levels falling back to very high and high categories, allowing for longer exposure times of 15 to 25 minutes before burning occurs. Overall, awareness and proactive measures during high-risk months are essential to ensure skin safety throughout the changing seasons.

Monthly Maximum UV Index for El Rosario, Mexico

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

The table above highlights how UV exposure in El Rosario 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.

El Rosario'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
El Rosario	8	11	13	14	14	14	13	13	13	12	9	7
Guadalajara UVI	9	11	14	14	14	13	13	13	13	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