UV Index in Lima Vieja, Mexico

Last updated: July 2, 2025

In Lima Vieja, Mexico, staying informed about the UV Index is essential for ensuring your skin health and preventing sunburn. The high UV levels typical of this region can lead to significant risks if precautions are not taken. With a climate classified as Am, residents and visitors alike experience periods of intense sunshine, especially between 11:00 AM and 2:00 PM, when the UV Index peaks at 12—a level categorized as extreme. Understanding these fluctuations in UV exposure can help you enjoy the outdoors safely, ensuring that you protect your skin while soaking up the sun.

Hourly UV Index in Lima Vieja

The UV Index provides crucial insight into sun exposure throughout the day, peaking dramatically during mid-afternoon. Starting gently at 1 from 07:00 to 09:00, it quickly escalates, reaching 5 by 10:00. The heart of the day sees the UV Index soar, peaking at an intense 12 from 13:00 to 14:00, indicating a high risk of harm from unprotected sun exposure. As the sun begins its descent, the UV levels gradually decline, tapering off to 5 by 17:00, and returning to a safer 1 by sunset at 19:00. For anyone planning outdoor activities, it’s essential to seek shade and protect skin 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	1	low	45 min
08:00	1	low	45 min
09:00	2	low	45 min
10:00	5	moderate	30 min
11:00	8	very high	15 min
12:00	11	extreme	10 min
13:00	12	extreme	10 min
14:00	12	extreme	10 min
15:00	11	extreme	10 min
16:00	8	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 Lima Vieja

Throughout the year, seasonal UV changes show a significant increase in UV Index values from January to October, peaking in June with an index of 13 classified as extreme. The most high-risk months for UV exposure are from March to October, where the index consistently remains 11 or higher. Specifically, March to July features extreme levels, with burn times as short as 10 minutes during this period. Visitors and residents are strongly advised to take precautions such as wearing protective clothing, applying sunscreen, and seeking shade during peak sun hours, especially from March to September, to mitigate the risks of harmful UV exposure. As the year progresses, both November and December see a decrease in UV levels, but caution should still be exercised with high risk in November.

Monthly Maximum UV Index for Lima Vieja, Mexico

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

The table above highlights how UV exposure in Lima Vieja 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.

Lima Vieja'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
Lima Vieja	7	10	11	12	12	13	12	12	12	11	8	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