UV Index in Bernal, Mexico

Last updated: May 3, 2025

In Bernal, Mexico, awareness of the UV Index is crucial for safeguarding your skin against harmful ultraviolet radiation. The UV Index measures the strength of sun's rays, helping inhabitants and visitors alike understand potential risks for sunburn and long-term skin health. With Bernal's semi-arid climate (BSk), locals face high UV exposure, particularly during midday hours when readings peak at an alarming 15. By understanding and monitoring UV levels, you can take proactive measures to protect your skin, ensuring a safer, healthier outdoor experience in this beautiful region.

Hourly UV Index in Bernal

The UV Index starts low in the morning, with values of 1 at both 07:00 and 08:00. As the day unfolds, it ** climbs steadily**, peaking at a striking 15 during the afternoon hours of 13:00 and 14:00. This indicates an intense level of UV radiation, which necessitates taking precautions against sun exposure. By 15:00, the index begins to dip, indicating a gradual decrease in UV intensity, falling to 5 by 17:00. As evening approaches, the index cools down to 2 at 18:00 and returns to a benign 1 by 19:00. This significant rise and fall highlight the importance of monitoring the UV Index, especially during peak hours when outdoor activities can lead to increased risk of sunburn.

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	6	high	25 min
11:00	9	very high	15 min
12:00	13	extreme	10 min
13:00	15	extreme	10 min
14:00	15	extreme	10 min
15:00	13	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 Bernal

The UV Index exhibits significant seasonal variation, with the highest levels recorded from February to October, peaking at 15 in May. This period is classified as having an extreme exposure category, where even short sun exposure can lead to skin damage in just 10 minutes. High-risk months include February through October, with particularly intense UV radiation from March to September. Residents and visitors should take precautionary measures, such as wearing protective clothing, applying broad-spectrum sunscreen, and seeking shade during peak hours. In the higher-risk months, it is essential to remain vigilant about sun safety to minimize the risk of harmful UV exposure. As the year progresses into November and December, the UV Index decreases, but caution is still advised, especially during the bright sunny days.

Monthly Maximum UV Index for Bernal, Mexico

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

The table above highlights how UV exposure in Bernal 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.

Bernal'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
Bernal	9	11	14	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