UV Index in Santo Tomas, Mexico

Last updated: July 2, 2025

Understanding the UV Index in Santo Tomas, Mexico is crucial for safeguarding your skin and overall health. With a tropical climate classified as Cwb, the region experiences varying UV levels that peak around noon, reaching a maximum of 15 at 13:00. Being aware of these levels helps in preventing sunburn and reduces the long-term risks associated with excessive UV exposure. As sunlight intensity increases, especially during the warmer months, it's essential to stay informed about UV risks to enjoy the outdoors safely while protecting your skin's health.

Hourly UV Index in Santo Tomas

The UV Index journey throughout the day reveals a striking crescendo of solar intensity. Starting softly at a mere 1 at 07:00, the index gradually rises, hitting 3 by 09:00. As the sun climbs higher, UV levels peak dramatically at 15 from 13:00 to 14:00, marking the day's most intense exposure. This midday surge emphasizes the importance of sun protection, as values hover at 13 and 10 during the afternoon before tapering off in the evening, settling back to 1 by 19:00. The data serves as a compelling reminder to stay vigilant under the sun's powerful rays, especially 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	13	extreme	10 min
13:00	15	extreme	10 min
14:00	15	extreme	10 min
15:00	13	extreme	10 min
16:00	10	very high	15 min
17:00	6	high	25 min
18:00	3	moderate	30 min
19:00	1	low	45 min

Monthly UV Index Trends in Santo Tomas

During the year, seasonal UV changes show significant fluctuations, with highest UV levels occurring from February to October. This period includes several high-risk months for sun exposure, particularly from March to October, where the UV Index reaches extreme levels (14-15), with a burn time of just 10 minutes. Conversely, January, November, and December experience very high UV Index ratings (9-10), with longer burn times of 15 minutes. Visitors and residents are strongly advised to take extra precautions during these high-risk months, including wearing protective clothing, applying broad-spectrum sunscreen with an SPF of 30 or higher, and seeking shade during peak hours to minimize the risk of UV-related harm.

Monthly Maximum UV Index for Santo Tomas, Mexico

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

The table above highlights how UV exposure in Santo Tomas 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.

Santo Tomas'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
Santo Tomas	9	12	14	15	15	15	15	14	14	13	10	8
Puebla UVI	10	12	14	15	15	15	15	14	14	13	10	9