UV Index in San Cristobal, Mexico

Last updated: June 2, 2025

In San Cristobal, Mexico, being aware of the UV Index is crucial for protecting your skin from harmful ultraviolet radiation. Understanding UV levels empowers residents and visitors alike to take proactive steps in preventing sunburn and maintaining overall skin health. San Cristobal’s Cfb climate brings variable sunlight throughout the day, with peak UV levels rising to a staggering 14 between noon and 2 PM. This sharp increase underscores the importance of monitoring UV exposure while enjoying the beautiful outdoors in this enchanting region. Stay informed and safe under the sun!

Hourly UV Index in San Cristobal

The UV Index today follows a striking pattern, peaking dramatically through the midday sun. Starting off gently at 1 during the early hours of 07:00 and 08:00, the index climbs steadily, reaching a moderate 3 by 09:00. As the day progresses, anticipation builds, leading to a notable surge at 10:00 with a peak of 5. However, it's 11:00 to 14:00 where the sun truly asserts itself, with the UV Index soaring to 9 at 11:00, hitting an impressive 12 at 12:00, and reaching its apex at 14:00 with 14. The intensity begins to decline post-noon, slipping to 12 at 15:00, 9 at 16:00, and tapering off to 2 by 18:00, before returning to a safe 1 by 19:00. Stay protected during those peak hours when the sun's rays can be particularly harsh!

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	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	2	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in San Cristobal

The UV Index exhibits significant seasonal fluctuations, with the highest levels typically occurring from February to October. During these months, particularly from March to August, the UV Index reaches extreme levels of 13 to 14, where the burn time is a mere 10 minutes. January and November present a very high exposure risk, with burn times of 15 minutes, while December sees a high exposure risk, allowing for a longer burn time of 25 minutes. Visitors and residents are strongly advised to take precautions during the high-risk months, especially from February to October, by seeking shade, wearing protective clothing, and using broad-spectrum sunscreen to mitigate the risks associated with excessive UV exposure.

Monthly Maximum UV Index for San Cristobal, Mexico

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

The table above highlights how UV exposure in San Cristobal 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 Cristobal'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
San Cristobal	8	11	13	13	14	14	14	13	13	12	9	7
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