UV Index in Castamay, Mexico

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents and visitors in Castamay, Mexico, where the sun shines brightly and the risk of overexposure can lead to serious skin damage. With UV levels peaking at a formidable 13 during midday, being aware of these readings is essential for effective sunburn prevention and maintaining long-term skin health. The warm, sunny climate of Castamay presents unique challenges, making it imperative to monitor daily UV exposure to safeguard your skin while enjoying the great outdoors. Stay informed and stay safe under the Castamay sun!

Hourly UV Index in Castamay

The UV Index displays a dynamic pattern throughout the day, starting with a gentle level 1 at 7:00 AM and 8:00 AM, perfect for early risers. As the sun climbs higher, the intensity increases sharply, peaking at a striking 12 around noon and reaching its zenith at 1 PM with an impressive 13. From that point, the index gradually declines, dropping to 6 by 4 PM, and then further down to a softer 3 by 5 PM. By evening, it returns to 1 at 6 PM, inviting a sense of relief as the day winds down. This data emphasizes the importance of sun safety, especially during those peak hours 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	1	low	45 min
08:00	1	low	45 min
09:00	3	moderate	30 min
10:00	6	high	25 min
11:00	10	very high	15 min
12:00	12	extreme	10 min
13:00	13	extreme	10 min
14:00	12	extreme	10 min
15:00	9	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 Castamay

Throughout the year, UV levels in the area exhibit significant seasonal variations, with the highest risks occurring during the spring and summer months. From March to October, the UV Index reaches extreme levels of 13, necessitating shortened burn times of just 10 minutes. Conversely, January, February, November, and December register a very high UV Index of 8 to 10, allowing slightly longer burn times of 15 minutes. Visitors and residents are strongly advised to take protective measures during the high-risk months, especially from March to September, by wearing sunscreen, protective clothing, and seeking shade during peak hours to minimize the risk of sunburn and long-term skin damage.

Monthly Maximum UV Index for Castamay, Mexico

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

The table above highlights how UV exposure in Castamay 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.

Castamay'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
Castamay	8	10	13	13	13	13	13	13	12	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