UV Index in Altar, Mexico

Last updated: June 2, 2025

Understanding the UV Index in Altar, Mexico is crucial for protecting your skin and maintaining overall health, especially in a region characterized by its BSh climate, which brings ample sun exposure. With daytime UV levels often peaking at 12, awareness of UV levels is essential to prevent sunburn and long-term skin damage. By keeping a close eye on these readings, residents and visitors can take proactive measures to enjoy the beautiful, sunny days without compromising their skin's health. Remember, even on less intense days, UV rays can still pose risks, making it vital to stay informed and protected!

Hourly UV Index in Altar

As the sun rises, the UV Index starts low at 1 at 07:00, but by 09:00, it climbs to a moderate 6. The peak intensity occurs around 12:00, reaching an impressive 12, indicating that midday sun can be intense. For the next hour, it holds steady at 12, before gradually tapering off to 10 by 14:00. The index continues to decline, dropping to 7 at 15:00, then settling to a more manageable 5 by 16:00. As the day draws to a close, the UV levels drop further to 2 at 17:00, and finally return to 1 by 19:00. Throughout the day, it's essential to stay protected from the sun's rays, especially during those peak hours!

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	3	moderate	30 min
09:00	6	high	25 min
10:00	9	very high	15 min
11:00	11	extreme	10 min
12:00	12	extreme	10 min
13:00	12	extreme	10 min
14:00	10	very high	15 min
15:00	7	high	25 min
16:00	5	moderate	30 min
17:00	2	low	45 min
18:00	1	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Altar

Throughout the year, the UV Index shows significant fluctuations, reflecting changing seasonal conditions. From January (UV Index 5) to November (UV Index 6), the levels start moderate and peak in the summer months. The highest risk months are typically from March to September, where the UV Index reaches extremes between 10 and 12, with minimal burn times of just 10 minutes. By April and May, caution is crucial as these months have an extreme exposure category. As the year winds down, October marks a notable decrease in UV rays, but still warrants attention due to a very high index of 8. For residents and visitors, it's essential to protect your skin during peak UV months by using sunscreen, wearing protective clothing, and limiting sun exposure during peak hours. Always stay vigilant, especially from late winter through early autumn, to enjoy outdoor activities safely.

Monthly Maximum UV Index for Altar, Mexico

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

The table above highlights how UV exposure in Altar 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.

Altar'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
Altar	5	7	10	11	12	12	12	12	11	8	6	5
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