UV Index in San Joaquin, Mexico

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents of San Joaquin, Mexico, where the sun's rays can be particularly intense. High UV levels can lead to painful sunburns and long-term skin damage, making awareness essential for sun safety. With a BSk climate that sees clear skies and frequent sun exposure, it's important to know that the UV Index can reach a peak of 14 during midday hours. By staying informed about UV levels, you can take the necessary precautions to protect your skin and enjoy the outdoor lifestyle that San Joaquin offers.

Hourly UV Index in San Joaquin

As the sun rises, the UV Index begins at a modest 1 at 7:00 AM, gradually climbing to reach 2 by 9:00 AM. The intensity ramps up sharply, hitting 5 at 10:00 AM and soaring to a peak of 14 between 1:00 PM and 2:00 PM. It's critical to stay protected, especially during this prime time, as the UV Index touches a high of 12 at noon. Afterward, the index begins to decline, slipping to 9 by 4:00 PM and tapering off to 3 at 6:00 PM, before settling back down to a low of 1 by 7:00 PM. This data clearly highlights the urgency of sun safety during the midday hours when UV radiation is at its most intense.

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	2	low	45 min
10:00	5	moderate	30 min
11:00	8	very high	15 min
12:00	12	extreme	10 min
13:00	14	extreme	10 min
14:00	14	extreme	10 min
15:00	13	extreme	10 min
16:00	9	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 San Joaquin

The UV Index in the region exhibits significant seasonal fluctuations, peaking from February to October, with extremely high levels reached in March, April, May, June, July, August, and September, where the UV Index consistently registers at 14 to 15. These months carry a burn time of just 10 minutes, indicating a critical risk for sunburn and skin damage. Conversely, during January, November, and December, the UV Index falls to levels classified as very high (9 to 10), allowing for slightly longer exposure times of 15 minutes. Visitors and residents should exercise caution during the high-risk months (February through October), ensuring the use of sunscreen, protective clothing, and seeking shade during peak hours to safeguard against UV radiation.

Monthly Maximum UV Index for San Joaquin, Mexico

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

The table above highlights how UV exposure in San Joaquin 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 Joaquin'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
San Joaquin	9	12	14	15	15	14	14	14	14	12	10	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