UV Index in Zacatlan, Mexico

Last updated: August 1, 2025

Understanding the UV Index in Zacatlán, Mexico is crucial for everyone looking to protect their skin and overall health. High UV levels, especially during the peak hours of the day, can lead to sunburn and long-term skin damage. With Zacatlán's temperate oceanic climate, residents and visitors are often exposed to varying UV risks, particularly around midday when the index can soar to critical levels as high as 14. Being aware of these UV levels allows you to take appropriate precautions and enjoy the beautiful outdoors safely while minimizing risks to your skin.

Hourly UV Index in Zacatlan

The UV Index begins its day at a gentle level of 1 during the early hours, gradually rising to a more noticeable 3 by 09:00. The sun reaches its peak intensity around 12:00 with a striking 12, signaling caution for those venturing outdoors. The highest reading of 14 occurs at 13:00 and 14:00, representing the moment when sun protection is most critical. As the day progresses, the index starts to decline, falling to 6 by 17:00, and eventually returning to 1 by 19:00. This dynamic pattern emphasizes the importance of being mindful of UV exposure, especially during midday hours when the intensity is at its highest.

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	9	very high	15 min
12:00	12	extreme	10 min
13:00	14	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 Zacatlan

The UV Index exhibits significant variation throughout the year, with the highest values occurring from February to October. Particularly, the months of March, April, and May see a peak UV Index of 15, categorizing these months as extremely high risk for UV exposure, where the burn time is a mere 10 minutes. January and November show a reduction in risk with an index of 9 and 10 respectively, but are still categorized as very high risk, with increased burn times of 15 minutes. Visitors and residents are strongly advised to take precautions during these high-risk months, especially from February through October, by wearing protective clothing, applying sunscreen frequently, and seeking shade during peak sunlight hours to avoid harmful effects of UV radiation.

Monthly Maximum UV Index for Zacatlan, Mexico

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

The table above highlights how UV exposure in Zacatlan 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.

Zacatlan'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
Zacatlan	9	12	13	14	15	14	14	14	14	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