UV Index in El Rosario, Mexico

Last updated: June 2, 2025

Understanding the UV Index is vital for residents and visitors in El Rosario, Mexico, where the arid BSk climate presents unique sun exposure challenges. With UV levels peaking at a staggering 14 during midday hours, awareness of these readings is key to preventing sunburn and safeguarding skin health. As you enjoy the sunny days, being informed about UV fluctuations will help you take necessary precautions, ensuring you relish the beautiful weather without the risk of harmful effects. Stay vigilant and protect your skin from El Rosario's intense sun!

Hourly UV Index in El Rosario

The UV Index begins its day at a gentle level of 1 during the early hours, gradually rising to a more noticeable 3 by 09:00. The sun reaches its peak intensity around 12:00 with a striking 12, signaling caution for those venturing outdoors. The highest reading of 14 occurs at 13:00 and 14:00, representing the moment when sun protection is most critical. As the day progresses, the index starts to decline, falling to 6 by 17:00, and eventually returning to 1 by 19:00. This dynamic pattern emphasizes the importance of being mindful of UV exposure, especially during midday hours when the 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	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	13	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 El Rosario

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 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
El Rosario	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