UV Index in San Mateo, Mexico

Last updated: June 2, 2025

In San Mateo, Mexico, being aware of the UV Index is crucial for protecting your health and enjoying the vibrant outdoors. Understanding UV levels is not just about avoiding painful sunburns; it’s essential for maintaining long-term skin health and reducing the risk of skin cancer. With a climate characterized by plenty of sunshine, the UV exposure can peak significantly—reaching an index of 14 around midday—making it vital for residents and visitors alike to stay informed. By tracking the UV Index, you can make informed choices about sun protection, ensuring you enjoy the sunny days of San Mateo safely and healthily.

Hourly UV Index in San Mateo

The UV Index for today demonstrates a dramatic rise in solar intensity as the day progresses. Starting with a maximum of 0 at 7:00 AM, the index gently climbs to 1 by 8:00 AM. Then, as the sun reaches its zenith, we see a striking surge: it peaks at 14 around 2:00 PM, signaling high levels of UV radiation. After that, the index gradually declines, dropping to 5 by 5:00 PM, and eventually tails off to 1 by 7:00 PM. It's crucial to stay protected from the sun's rays, especially during the peak hours from 11 AM to 3 PM when the UV levels are at their 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	8	very high	15 min
12:00	11	extreme	10 min
13:00	13	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	3	moderate	30 min
19:00	1	low	45 min

Monthly UV Index Trends in San Mateo

The UV Index exhibits significant seasonal changes, peaking during the summer months. From January (UV Index 9) through November (UV Index 8), the risk of UV exposure is generally high, especially from February to October, when the UV Index consistently reaches 11 or higher, categorized as extreme. The highest risk occurs in June and July, with a UV Index of 14 and a burn time of just 10 minutes. Residents and visitors are strongly advised to take protective measures, such as wearing sunscreen, protective clothing, and sunglasses, particularly during these high-risk months. Even during cooler months, such as November and December, with an increased risk of sunburn due to the very high UV Index, appropriate precautions should still be observed to minimize skin damage.

Monthly Maximum UV Index for San Mateo, Mexico

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

The table above highlights how UV exposure in San Mateo 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 Mateo'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 Mateo	9	11	13	13	13	14	14	13	13	11	8	8
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