UV Index in El Castillo, Mexico

Last updated: May 3, 2025

In El Castillo, Mexico, staying informed about the UV Index is crucial for protecting your skin and overall health. With a climate classified as Cwb, the region experiences a variety of weather patterns, but when the sun shines, the UV levels can escalate quickly, peaking at a staggering 14 between 1 PM and 3 PM. Understanding these levels is essential for preventing sunburn and long-term skin damage, allowing you to enjoy the beautiful outdoors safely. Awareness of UV exposure can make a significant difference in maintaining skin health while basking in the vibrant sunshine of El Castillo.

Hourly UV Index in El Castillo

The UV index dramatically rises as the day progresses, peaking at 14 between 1 PM and 2 PM, indicating a high level of UV radiation and necessitating protective measures like sunscreen and hats. Early in the morning, the index is low, starting at 0 at 7 AM, but quickly climbs to 12 by noon and reaches its zenith at 1 PM. After this peak, the index gradually declines, returning to 1 by 7 PM. This pattern highlights the importance of being sun-safe during the peak hours of exposure, especially from 10 AM to 3 PM when the UV index is at its highest.

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	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	12	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 El Castillo

Throughout the year, the UV Index experiences significant fluctuations, with the highest risk months occurring from February to September, when the index reaches extreme levels of 11 to 14 and requires minimal exposure times of just 10 minutes to avoid sunburn. In contrast, the months of November and December see the UV Index drop to 9 and 8 respectively, categorized as very high with longer burn times of 15 minutes. Residents and visitors are advised to take extra precautions during the peak months, such as wearing sunscreen, protective clothing, and seeking shade during peak sun hours, to safeguard against harmful UV radiation.

Monthly Maximum UV Index for El Castillo, Mexico

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

The table above highlights how UV exposure in El Castillo 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 Castillo'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
El Castillo	9	11	14	14	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