UV Index in El Rayo, Mexico

Last updated: June 2, 2025

In El Rayo, Mexico, being aware of the UV Index is crucial for safeguarding your skin against harmful sun exposure. Understanding UV levels is not just about avoiding painful sunburns; it plays a significant role in maintaining long-term skin health. With its hot desert climate and high UV radiation, particularly between 11 AM and 3 PM when the index peaks at 13, residents and visitors alike need to take proactive measures to protect themselves. By staying informed about the UV Index, you can enjoy the vibrant sun without compromising your health.

Hourly UV Index in El Rayo

As the day unfolds, the UV Index rises steadily, beginning at a safe 0 at 07:00 and peaking dramatically. By 10:00, it escalates to 4, signaling the need for some sun protection. The intensity reaches 10 at 12:00, and then hits its maximum at 13:00 with a formidable 12. Right after, it slightly dips but remains high at 12 until 15:00. As the afternoon wanes, the UV Index begins to decline, dropping to 9 by 16:00, and continuing its descent to 1 by 19:00. This fluctuation highlights the importance of being sun-smart during peak hours, especially between 11:00 and 15:00, when the sun is at its strongest.

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	12	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 El Rayo

The UV Index exhibits significant seasonal variability, peaking during the warmer months. Notably, March through October marks a period of extreme UV exposure, with the highest readings occurring in April at an index of 14. The most critical months for sun exposure are February through October, where UV levels range from very high to extreme, with minimal safe burn times of just 10 minutes during the peak months. Visitors and residents are advised to take strong protective measures, such as applying broad-spectrum sunscreen, wearing protective clothing, and seeking shade during peak hours. In contrast, the winter months of January, November, and December present lower UV risks, with indices at 7 or 8 and safer burn times of 15-25 minutes. However, UV radiation can still be significant, so caution is recommended year-round.

Monthly Maximum UV Index for El Rayo, Mexico

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

The table above highlights how UV exposure in El Rayo 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.

El Rayo'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
El Rayo	7	10	12	14	13	13	13	13	13	11	8	7
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