UV Index in San Andres, Mexico

Last updated: June 2, 2025

Understanding the UV Index in San Andres, Mexico is crucial for protecting your skin and maintaining overall health. With high levels of ultraviolet (UV) radiation, especially during peak hours, being aware of UV levels can help you prevent painful sunburn and long-term skin damage. San Andres, characterized by its mild climate, experiences significant UV exposure risks, particularly between 11:00 AM and 2:00 PM, when the UV Index can soar to extreme levels of 12 and 14. By staying informed and taking necessary precautions, you can enjoy the beautiful outdoors while safeguarding your skin from harmful effects.

Hourly UV Index in San Andres

The UV Index throughout the day showcases a notable rise, peaking dramatically at 14 between 12:00 PM and 1:00 PM. Early morning starts off mild, with values of 1 at 7:00 AM and 8:00 AM, gradually increasing to 2 by 9:00 AM. As the sun ascends, the intensity intensifies, hitting 5 by 10:00 AM and surging to 9 by 11:00 AM. By midday, the index reaches a scorching 12, a clear warning to take precautions. As the afternoon progresses, it maintains high levels at 14 until 2:00 PM, before tapering off to 12 at 3:00 PM, then retreating to 9 at 4:00 PM. Finally, the UV Index descends to 3 by 6:00 PM, and concludes the day at a safe 1 by 7:00 PM. Remember, during peak hours, it's crucial to shield your skin from harmful UV rays!

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	2	low	45 min
10:00	5	moderate	30 min
11:00	9	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	9	very high	15 min
17:00	5	moderate	30 min
18:00	3	moderate	30 min
19:00	1	low	45 min

Monthly UV Index Trends in San Andres

During the year, UV exposure varies significantly, with the highest risk occurring from February to October, where the UV Index consistently reaches 12 or higher, classifying it as extreme. Particularly high-risk months include March, April, May, June, July, August, and September, all maintaining an index of 14 or higher, thus posing a burn time of merely 10 minutes. In contrast, January, November, and December exhibit lower, though still very high, UV levels, with burn times stretching to 15 minutes. Residents and visitors are strongly advised to take precautions such as wearing sunscreen, protective clothing, and seeking shade during peak hours, especially in the high-risk months to mitigate the significantly increased risk of skin damage.

Monthly Maximum UV Index for San Andres, Mexico

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

The table above highlights how UV exposure in San Andres 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.

San Andres'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
San Andres	10	12	14	14	14	14	15	14	14	12	10	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