UV Index in San Lorenzo, Mexico

Last updated: June 2, 2025

Understanding the UV Index is crucial for residents and visitors in San Lorenzo, Mexico, as it serves as a vital indicator of the sun's intensity and its potential risks. Monitoring UV levels not only helps in preventing painful sunburns but also plays a significant role in protecting long-term skin health. Nestled in a Cfa climate zone, San Lorenzo experiences high UV exposure, especially during peak hours from 10 AM to 2 PM, when the index can soar to levels exceeding 12. By staying informed about the UV Index, you can better safeguard your skin and enjoy the sunny days in this beautiful region.

Hourly UV Index in San Lorenzo

As the sun rises, the UV Index starts off gently, peaking at 1 during the early morning hours of 7:00 and 8:00. However, it quickly escalates, reaching a moderate level of 3 by 9:00. The real intensity kicks in by 10:00, climbing to 5, before skyrocketing to a staggering 12 at noon. The highest point is recorded at 13:00 and 14:00, both showing a powerful 13 on the index, making it crucial to take sun safety precautions. The afternoon sees a gradual decline, dipping to 8 at 16:00, with the sun’s intensity finally mellowing out to 5 by 17:00, and settling down to a safe 1 by 19:00. Stay protected 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	8	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 San Lorenzo

The UV Index varies significantly throughout the year, with the most intense levels occurring from February to October. The months of February, March, April, May, June, July, August, September, and October are classified in the extreme exposure category, with a UV Index peak of 13 during these months, resulting in a quick burn time of just 10 minutes. Conversely, January and November present a very high risk with a UV Index of 8 and 9 respectively, where burn times stretch to 15 minutes. By December, the UV risks reduce to high, with a burn time of 25 minutes. Residents and visitors should take special precautions during the high-risk months, including using broad-spectrum sunscreen, wearing protective clothing, and limiting sun exposure, especially from noon to 4 PM when the sun’s rays are strongest. Staying informed and prepared is essential to enjoy the outdoors safely.

Monthly Maximum UV Index for San Lorenzo, Mexico

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

The table above highlights how UV exposure in San Lorenzo 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.

San Lorenzo'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
San Lorenzo	8	11	12	13	13	13	13	13	13	11	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