UV Index in Rio Grande, Mexico

Last updated: July 2, 2025

In Rio Grande, Mexico, understanding the UV Index is crucial for protecting your skin and overall health. With the region's Cwa climate, characterized by hot summers and mild winters, UV exposure can peak significantly, especially during midday hours. The UV Index informs residents about the intensity of solar UV radiation, helping you take necessary precautions against sunburn and long-term skin damage. Knowing the daily fluctuations in UV levels, such as the alarming peak of 13 around 1 PM, empowers you to enjoy the sun safely and safeguard your skin health year-round.

Hourly UV Index in Rio Grande

The UV index throughout the day reveals a dynamic pattern, starting from a low 0 at 7:00 AM and gradually climbing as the sun rises. By 10:00 AM, it reaches 4, signaling the start of potential sun sensitivity. As noon approaches, the intensity peaks dramatically at 12:00 PM with a UV index of 10, which is considered very high, urging outdoor enthusiasts to take protective measures. The afternoon hours continue to show significant UV levels, with a maximum of 13 at 1:00 PM and 2:00 PM, before slowly tapering off in the later afternoon and evening, dropping back to 1 by 7:00 PM. This data emphasizes the importance of sun safety, especially during the midday hours when UV exposure poses the greatest risk.

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	0	low	45 min
08:00	1	low	45 min
09:00	2	low	45 min
10:00	4	moderate	30 min
11:00	7	high	25 min
12:00	10	very high	15 min
13:00	13	extreme	10 min
14:00	13	extreme	10 min
15:00	12	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 Rio Grande

Throughout the year, the UV Index shows significant seasonal variations, with the highest values occurring from February to September. During these months, the UV Index reaches extreme levels, peaking at 15 in April. This means residents and visitors should be particularly cautious during these high-risk months, as the burn time can be as short as 10 minutes. January, November, and December still present very high UV levels, but with longer burn times of 15 minutes. To protect against skin damage, it is advisable to seek shade, wear protective clothing, and apply sunscreen generously, especially during the peak months of February to October. Always consider the UV Index when planning outdoor activities to ensure a safe and enjoyable experience.

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	11	14	15	14	14	13	13	14	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