UV Index in El Custodio, Mexico

Last updated: June 2, 2025

Understanding the UV Index is crucial for residents and visitors in El Custodio, Mexico, where the sun can be both a friend and a foe. With peak UV levels often soaring to a critical 13 around noon, awareness is key to preventing sunburn and protecting skin health. The tropical Cwa climate of El Custodio brings prolonged exposure to powerful UV rays, making it vital to take precautions throughout the year. By keeping an eye on the UV Index, you can enjoy the beautiful weather while safeguarding your skin from harmful effects.

Hourly UV Index in El Custodio

Under the sun's watchful gaze, the UV Index begins its day slowly, starting at 1 at both 7:00 AM and 8:00 AM. As the morning progresses, it nudges higher, reaching 3 by 9:00 AM, but the real intensity surges swiftly. At 10:00 AM, it escalates to 5, then climbs dramatically to its peak of 13 by 1:00 PM, staying relentless until 2:00 PM. The afternoon brings a slight reprieve, tapering down to 11 at 3:00 PM, and further descending to 3 by 6:00 PM. As the sun begins to set, the index drops to 1 again by 7:00 PM, reminding us of the sun’s powerful rays and the need for protection 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	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	13	extreme	10 min
14:00	13	extreme	10 min
15:00	11	extreme	10 min
16:00	9	very high	15 min
17:00	5	moderate	30 min
18:00	3	moderate	30 min
19:00	1	low	45 min

Monthly UV Index Trends in El Custodio

Throughout the year, seasonal UV changes indicate significant variability in exposure risk. The high-risk months are from March to October, where the UV Index reaches extreme levels, peaking at 14 in both May and July, with burn times of just 10 minutes. January and February also present high risks with very high ratings of 8 and 10, but burn times extend to 15 minutes. As the year progresses, UV exposure diminishes in November (UV Index 9) and December (UV Index 7), where the burn time increases to 15 minutes and 25 minutes, respectively. Visitors and residents are advised to take precautionary measures during the high-risk months by wearing protective clothing, applying sunscreen, and seeking shade when outdoors, especially during midday hours when the sun's rays are most intense.

Monthly Maximum UV Index for El Custodio, Mexico

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

The table above highlights how UV exposure in El Custodio 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 Custodio'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
El Custodio	8	10	13	13	14	13	14	13	13	12	9	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