UV Index in Kilometro 40, Mexico

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents and visitors of Kilometro 40, Mexico, given its sun-drenched Aw climate. As UV levels can peak to a striking 14 around midday, awareness of these fluctuations is essential for sunburn prevention and maintaining long-term skin health. Recognizing the risks associated with high UV exposure helps individuals take proactive measures, ensuring that outdoor activities remain enjoyable without compromising their well-being. Whether you're basking in the sun or planning a midday excursion, keeping an eye on the UV Index can make all the difference in safeguarding your skin.

Hourly UV Index in Kilometro 40

The UV Index for the day reveals a clear pattern of increasing intensity as the sun climbs higher in the sky. Starting from a safe 0 at 07:00, the index gently rises to 1 at 08:00 and then to 2 by 09:00. However, as midday approaches, the readings spike dramatically, peaking at an intense 14 at 14:00. This midday heat marks the highest risk for sun exposure, with a staggering 11 seen at 12:00 and 13 at 13:00. The afternoon brings a gradual decline, with the UV Index dropping to 9 at 16:00 and continuing to decrease to 2 by 18:00. As the day transitions into evening, the risk subsides, settling at 1 by 19:00. This data underscores the importance of sun safety during peak hours, particularly between 11:00 and 15:00.

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	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	13	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 Kilometro 40

The seasonal UV changes reveal that the months from February to October are particularly concerning, as most months in this period have an extreme UV Index, peaking at 14 in March, May, June, July, and September. The high-risk months for sun exposure are therefore from February through October, where the recommended burn time is only 10 minutes. In contrast, January, November, and December are slightly less critical with very high UV Index levels of 10 and 9, allowing for burn times of 15 minutes. Visitors and residents should take precautionary measures during these months by seeking shade, wearing protective clothing, and applying sunscreen frequently to minimize the risk of skin damage.

Monthly Maximum UV Index for Kilometro 40, Mexico

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Kilometro 40. 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 Kilometro 40, 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 Kilometro 40 UV Index with Other Mexico Cities

The table above highlights how UV exposure in Kilometro 40 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.

Kilometro 40'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
Kilometro 40	10	11	14	13	14	14	14	13	14	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