UV Index in San Jose del Llano, Mexico

Last updated: June 2, 2025

In San Jose del Llano, Mexico, understanding the UV Index is crucial for protecting your skin and overall health. The UV Index serves as a daily guide to sun exposure, helping residents and visitors alike take proactive measures against sunburn and long-term skin damage. With a Csa climate characterized by warm temperatures and intense sunlight, particularly around midday when UV levels peak at a blistering 12, awareness of these UV readings is vital. By keeping an eye on the UV Index, you can enjoy the sunny days in San Jose del Llano while safeguarding your skin from harmful rays.

Hourly UV Index in San Jose del Llano

As the sun rises, the UV Index gradually climbs, starting at a mild 1 at 07:00. By 08:00, it ticks up to 2, signaling the start of a bright day. From 09:00 to 10:00, the intensity increases to 4 and then reaches 6, as outdoor activities become increasingly inviting. The peak UV intensity occurs at 12:00, hitting a striking 12, and remains high throughout the afternoon at 12 until 14:00, making sun protection essential during these hours. The index then begins to taper off, dropping to 9 by 15:00, and continuing to decline towards evening, with values of 7 at 16:00, 4 at 17:00, and returning to a safe 2 by 18:00, before settling back down to 1 as night falls at 19:00. Be sure to seize the sunny hours while taking the necessary precautions!

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	2	low	45 min
09:00	4	moderate	30 min
10:00	6	high	25 min
11:00	9	very high	15 min
12:00	12	extreme	10 min
13:00	12	extreme	10 min
14:00	12	extreme	10 min
15:00	9	very high	15 min
16:00	7	high	25 min
17:00	4	moderate	30 min
18:00	2	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in San Jose del Llano

Throughout the year, UV exposure levels fluctuate significantly, with high-risk months occurring from March to October when the UV Index peaks between 11 and 14, indicating an extreme risk of harm from unprotected sun exposure. This period requires especially vigilant sun protection, with a burn time of only 10 minutes in intense months like April through August. February marks the transition into higher UV exposure, categorized as very high, with a burn time of 15 minutes, while November also presents considerable risk with a return to very high levels. Conversely, the lower risk months are January, where the UV Index is 7, and December, with an index of 6, allowing for burn times of 25 minutes. Visitors and residents should prioritize protective measures, such as sunscreen, clothing, and shade, particularly during the peak months to mitigate the negative effects of UV radiation.

Monthly Maximum UV Index for San Jose del Llano, Mexico

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

The table above highlights how UV exposure in San Jose del Llano 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 Jose del Llano'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 Jose del Llano	7	10	11	14	13	13	13	13	12	11	8	6
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