UV Index in Arellano, Mexico

Last updated: June 2, 2025

Understanding the UV Index in Arellano, Mexico is essential for protecting your skin and overall health. With intense sun exposure typical of the BSh climate zone, being aware of UV levels can help prevent painful sunburns and long-term skin damage. During the day, the UV Index peaks at a dramatic 14 around midday, indicating high risk for unprotected skin. Educating yourself about these levels empowers you to take proactive measures—such as seeking shade, wearing protective clothing, and applying sunscreen—ensuring that your outdoor activities remain enjoyable and safe under the Mexican sun.

Hourly UV Index in Arellano

The UV Index throughout the day exhibits a dynamic rise and fall, beginning with a maximum of 0 at 7:00 AM. As the sun ascends, the index steadily climbs, reaching 1 by 8:00 AM and hitting 2 at 9:00 AM. The real surge occurs between 10:00 AM and 1:00 PM, where it peaks at an intense 14 at 1:00 PM, indicating the highest potential for skin damage. The index slightly dips to 12 by 3:00 PM but remains significant as the afternoon progresses. By 6:00 PM, it drops to 3, and by 7:00 PM, it's back to a manageable 1. For outdoor enthusiasts, the most crucial hours to seek shade or wear protection are clearly from 10 AM to 2 PM when the sun’s rays are most potent.

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	14	extreme	10 min
14:00	14	extreme	10 min
15:00	12	extreme	10 min
16:00	10	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 Arellano

Throughout the year, seasonal UV changes reveal a peak during the late spring and summer months, with the highest UV Index occurring in May at 15 and consistently remaining extreme from February through September, where the burn time is particularly short at just 10 minutes. High-risk months include February to May, as well as June to September, where residents and visitors should exercise caution. It is crucial to protect your skin during these periods, especially from February to April, when even brief exposure can lead to serious sunburn. Advice for residents and visitors is to wear protective clothing, use broad-spectrum sunscreen with a high SPF, seek shade during peak sun hours, and remain vigilant about UV levels, particularly in the extreme exposure category months. As the year transitions into November and December, while UV levels decrease to very high and high, it remains important to continue practicing sun safety.

Monthly Maximum UV Index for Arellano, Mexico

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

The table above highlights how UV exposure in Arellano 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.

Arellano'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
Arellano	9	11	14	14	15	14	14	14	13	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