UV Index in San Andres, Mexico

Last updated: June 2, 2025

In San Andrés, Mexico, understanding the UV Index is crucial for both residents and visitors alike. With peak levels often exceeding 11, skin protection becomes paramount to prevent sunburn and long-term damage. The tropical climate of San Andrés means that UV exposure is a year-round concern, making awareness essential for maintaining healthy skin. From morning strolls to afternoon beach outings, being informed about the varying UV levels throughout the day can help you enjoy the sun safely while safeguarding your skin's health.

Hourly UV Index in San Andres

At dawn, the UV Index begins its ascent, starting at a cool 0 at 7:00 AM. As the sun climbs higher, from 8:00 AM to 10:00 AM, it gradually rises to 4, indicating a low risk of harm from unprotected sun exposure. However, by 11:00 AM, a surge in intensity brings the index to 8, signaling a moderate level of UV radiation. The peak occurs at 12:00 PM and 1:00 PM, reaching a striking 11 and 13, showcasing a high risk that calls for protective measures. As the afternoon wanes, the index gently declines, hitting 12 at 3:00 PM before tapering off to 9 at 4:00 PM and finally falling back to 1 by 7:00 PM. It's a day where the sun demands both respect and vigilance!

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	8	very high	15 min
12:00	11	extreme	10 min
13:00	13	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 San Andres

The UV Index exhibits significant seasonal changes, with the most intense exposure occurring from February to October, where the index frequently reaches extreme levels between 11 and 14. High-risk months for UV exposure are February, March, April, May, June, July, August, September, and October, with burn times as low as 10 minutes during peak index times. To ensure safety, both visitors and residents should be vigilant during these months, wearing protective clothing, using sunscreen with a high SPF, and seeking shade whenever possible—especially between 10 AM and 4 PM when the sun's rays are the strongest. As the UV index drops in November and December, the risk lessens, but individuals should continue to take precautions, as the index remains in the very high category.

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	9	11	13	14	14	13	13	13	13	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