UV Index in Rio Grande, Mexico

Last updated: June 2, 2025

In Rio Grande, Mexico, staying aware of the UV Index is crucial for protecting your skin from harmful sun exposure. Understanding UV levels helps prevent sunburn and promotes long-term skin health, making it essential for residents and visitors alike. With the region's Aw climate, characterized by strong sunlight and varying UV intensity throughout the day, it's vital to be informed about peak UV times—especially when the index can soar to as high as 14. By knowing when to take precautions, you can enjoy the beautiful sunshine of Rio Grande while keeping your skin safe.

Hourly UV Index in Rio Grande

The UV Index shows a remarkable progression throughout the day, with the most intense exposure occurring around noon. Starting from a mild 1 at 07:00 and 08:00, the index gradually climbs, reaching 9 by 11:00. The peak is reached at a striking 14 between 13:00 and 14:00, indicating a critical time for sun safety precautions. As the afternoon moves on, the index begins to decline, dropping to 5 by 17:00 and returning to a safer 1 by 19:00. To enjoy the sun responsibly, ensure protective measures are in place during those peak hours of 10:00 to 15:00!

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	12	extreme	10 min
13:00	14	extreme	10 min
14:00	13	extreme	10 min
15:00	11	extreme	10 min
16:00	8	very high	15 min
17:00	5	moderate	30 min
18:00	2	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Rio Grande

The seasonal UV changes indicate a significant increase in ultraviolet radiation from January to October, with the highest levels occurring from March to June, where the UV Index reaches 14. This peak marks a critical period for sun exposure, categorized as extreme, with a rapid burn time of just 10 minutes. Notably, February to October consistently presents a high risk for sunburn, making it essential for both visitors and residents to exercise caution during these months. High-risk months include March, April, May, June, July, August, September, and October, when UV levels remain elevated, necessitating proactive sun protection measures, such as applying sunscreen, wearing protective clothing, and seeking shade during peak hours. As the year transitions into November and December, UV exposure drops but remains classified as very high, reminding everyone to stay vigilant.

Monthly Maximum UV Index for Rio Grande, Mexico

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

The table above highlights how UV exposure in Rio Grande 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.

Rio Grande'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
Rio Grande	9	12	13	14	14	14	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