UV Index in La Joya, Mexico

Last updated: May 3, 2025

Understanding the UV Index is crucial for residents and visitors of La Joya, Mexico, where the sun shines brightly throughout the year. With average UV levels often peaking during midday, awareness of these readings is essential for preventing sunburn and promoting overall skin health. La Joya's semi-arid climate brings long periods of intense sunlight, particularly from late morning to early afternoon when UV Index values can soar to a staggering 13. Keeping an eye on the UV Index not only helps you enjoy the beautiful outdoors safely but also protects your skin from harmful effects that can lead to serious health issues down the line.

Hourly UV Index in La Joya

At dawn, the UV Index begins its gentle ascent, peaking at a mild 1 by 07:00. As the sun climbs higher, it rapidly intensifies, reaching a moderate 2 at 08:00 and surging to a substantial 4 by 09:00. The real heat kicks in at 10:00, where the index skyrockets to 7, indicating a high risk of harm from unprotected sun exposure. This trend continues, peaking at an intense 13 at both 12:00 and 13:00, marking the day’s maximum risk. As the afternoon wanes, we see a gradual decline to 10 at 15:00 and further down to 6 by 16:00. By evening, the numbers drop dramatically, settling back to a safe 1 by 18:00 and maintaining that level until nightfall. This hourly progression illustrates the critical importance of sun safety during midday 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	2	low	45 min
09:00	4	moderate	30 min
10:00	7	high	25 min
11:00	10	very high	15 min
12:00	13	extreme	10 min
13:00	13	extreme	10 min
14:00	12	extreme	10 min
15:00	10	very high	15 min
16:00	6	high	25 min
17:00	3	moderate	30 min
18:00	1	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in La Joya

Seasonal changes in UV levels reveal a significant variation throughout the year, peaking during the late spring and summer months. The highest UV Index values, reaching 13 in March through October, correspond to the extreme exposure category, indicating a burn time as short as 10 minutes. Conversely, January, February, November, and December feature very high UV levels of 8-10, allowing for a slightly longer burn time of 15 minutes. March to September are particularly high-risk months for sun exposure; therefore, it's crucial for both visitors and residents to take protective measures. Wearing sunscreen, protective clothing, and avoiding peak sun hours can help minimize the risk of skin damage.

Monthly Maximum UV Index for La Joya, Mexico

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

The table above highlights how UV exposure in La Joya 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.

La Joya'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
La Joya	8	10	13	13	13	13	13	13	13	11	9	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