UV Index in Piedras Grandes, Mexico

Last updated: July 2, 2025

In Piedras Grandes, Mexico, understanding the UV Index is crucial for maintaining skin health and preventing harmful sunburns. With a climate classified as Cfa, residents and visitors alike are exposed to varying UV levels throughout the day, peaking significantly around midday. For instance, during the hottest hours, UV Index values can soar to 15, underscoring the importance of sun safety practices. By being aware of these UV levels, you can take proactive measures to protect yourself from overexposure and safeguard your skin for years to come.

Hourly UV Index in Piedras Grandes

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 Piedras Grandes

The UV exposure varies significantly throughout the year, with January displaying a UV Index of 9, categorized as very high, indicating a burn time of 15 minutes. From February to October, the UV Index escalates sharply, peaking at 15 in May and July, falling under the extreme category with a dangerously low exposure limit of 10 minutes before tapering off in November and December. The high-risk months for UV exposure and potential skin damage are therefore from February to October, especially in the summer months. Residents and visitors are strongly advised to take protective measures during these periods, including wearing sunscreen, protective clothing, and seeking shade whenever possible to minimize the risk of sunburn and long-term skin damage.

Monthly Maximum UV Index for Piedras Grandes, Mexico

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

The table above highlights how UV exposure in Piedras Grandes 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.

Piedras Grandes'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
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
Piedras Grandes	9	12	13	14	15	14	15	14	14	12	10	8
Puebla UVI	10	12	14	15	15	15	15	14	14	13	10	9