UV Index in El Rosario, Mexico

Last updated: August 1, 2025

In El Rosario, Mexico, staying informed about the UV Index is vital for maintaining skin health and preventing sunburn. The UV Index gives a clear indication of the sun's intensity, helping residents and visitors alike make informed decisions about sun protection throughout the day. With a typical Cfb climate that offers a mixture of sunshine and cloud cover, El Rosario presents unique UV exposure risks, especially during peak hours when the UV Index can soar to 15 around midday. By understanding these levels, you can enjoy the beautiful weather while safely safeguarding your skin from harmful rays.

Hourly UV Index in El Rosario

The UV Index today showcases a dramatic rise, peaking at 15 between 1 PM and 2 PM, indicating a high risk for harm from unprotected sun exposure. Beginning with a low 1 at 7 AM, the index steadily climbs, reaching 10 at 11 AM, before skyrocketing during midday hours. From 12 PM to 2 PM, the index maintains its peak, suggesting it's essential to seek shade and wear protective gear if you’re outdoors. As the afternoon progresses, the intensity gradually decreases, dropping to 2 by 6 PM and returning to a safe 1 by 7 PM. This data highlights the importance of being sun-smart during the critical hours when UV 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	0	low	45 min
08:00	1	low	45 min
09:00	3	moderate	30 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	9	very high	15 min
17:00	5	moderate	30 min
18:00	2	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in El Rosario

Throughout the year, UV Index levels exhibit significant seasonal fluctuations, with high-risk months typically from February to October. During this period, the UV Index peaks at 15, categorized as extreme, particularly from April to July, necessitating vigilant sun safety measures. In these months, the burn time is only 10 minutes, indicating a critical need for protective measures such as sunscreen, hats, and UV-blocking sunglasses. Conversely, November and December see a decrease in UV exposure, categorized as very high, with a lengthened burn time of 15 minutes in those months. Therefore, both visitors and residents are strongly advised to monitor UV levels regularly and take necessary precautions, especially during the warmer, sunnier months to minimize the risk of skin damage.

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
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
El Rosario	10	12	14	15	15	15	15	14	14	13	10	9