UV Index in Valle del Rosario, Mexico

Last updated: May 3, 2025

In the beautiful Valle del Rosario, Mexico, awareness of the UV Index is essential for protecting your skin from harmful sun exposure. As the sun shines brightly in this semi-arid climate, understanding UV levels can significantly enhance your sunburn prevention strategies and overall skin health. With the UV Index peaking at a striking 14 around midday, residents and visitors alike must take precautions to mitigate risks associated with high UV exposure. This guide will help you navigate the local UV Index, ensuring that your time outdoors is not only enjoyable but also safe.

Hourly UV Index in Valle del Rosario

The UV Index for the day showcases a dramatic rise in intensity as the sun climbs higher in the sky. Starting at a gentle 1 at 07:00, the index escalates rapidly, reaching 4 by 09:00. The peak occurs at 13:00 with a scorching 14, making it crucial for sun safety during these hours. As the afternoon progresses, the UV levels start to decline, with a notable drop to 10 by 15:00 and further to 2 by 18:00. This gradual fade into the evening brings the UV index back down to 1 by 19:00, marking a day where protection against the sun is essential from late morning to early afternoon.

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	2	low	45 min
09:00	4	moderate	30 min
10:00	7	high	25 min
11:00	11	extreme	10 min
12:00	13	extreme	10 min
13:00	14	extreme	10 min
14:00	13	extreme	10 min
15:00	10	very high	15 min
16:00	7	high	25 min
17:00	4	moderate	30 min
18:00	2	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Valle del Rosario

As the UV Index fluctuates throughout the year, it is crucial for both visitors and residents to be aware of seasonal changes and high-risk months. January kicks off with a UV Index of 7 (high) and burn time of 25 minutes, but this escalates dramatically by March when it reaches 11, categorized as extreme, with a burn time of just 10 minutes. The peak months for UV exposure are April and May, both featuring a UV Index of 14 (extreme), meaning quick sunburns can occur in as little as 10 minutes. July through September maintain a steady UV Index of 13, posing high risks as well. As autumn sets in, November sees a decline to an index of 8 (very high), and December returns to a more moderate 6 (high). Visitors and residents are advised to take protective measures, especially during the extreme months from March to October, such as wearing sunscreen, hats, and protective clothing, and seeking shade during peak hours, to mitigate the risk of skin damage from increased UV radiation.

Monthly Maximum UV Index for Valle del Rosario, Mexico

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

The table above highlights how UV exposure in Valle del 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.

Valle del 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
Valle del Rosario	7	10	11	14	14	13	13	13	13	11	8	6
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