UV Index in San Carlos Alzatate, Guatemala

Last updated: July 2, 2025

In San Carlos Alzatate, Guatemala, awareness of the UV Index is crucial for promoting safe sun exposure and maintaining skin health. Understanding UV levels helps residents and visitors alike prevent sunburn and long-term skin damage, especially in a region where the climate is notably warm and sunny. With peak UV Index values soaring to 14 around midday, the risks of overstaying in the sun become significant. Knowing when to seek shade or apply sunscreen can make all the difference in enjoying the beautiful outdoor lifestyle of San Carlos Alzatate while protecting your skin from harmful UV radiation.

Hourly UV Index in San Carlos Alzatate

The UV Index shows a dynamic rise and fall throughout the day, starting at a mild 1 at 7:00 AM and escalating to a peak of 14 by noon, indicating high risk for harm from unprotected sun exposure. As the afternoon progresses, the index gradually declines to 10 at 2:00 PM, then swiftly dips as the sun sets, falling back to 1 by 5:00 PM and ultimately dropping to 0 after 7:00 PM. It's a reminder to embrace sun safety measures, especially during those peak hours when the index climbs to 13 and 14, urging everyone to stay protected!

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	4	moderate	30 min
09:00	7	high	25 min
10:00	10	very high	15 min
11:00	13	extreme	10 min
12:00	14	extreme	10 min
13:00	13	extreme	10 min
14:00	10	very high	15 min
15:00	7	high	25 min
16:00	3	moderate	30 min
17:00	1	low	45 min
18:00	1	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in San Carlos Alzatate

The UV Index shows significant seasonal variability, with extreme levels consistently observed from January to October, peaking at 15 in both March and April. This indicates that high-risk months for UV exposure are primarily from January through October, where the burn time is a mere 10 minutes in intense sunlight. Notably, while November and December see a decrease to a UV Index of 10, the exposure category remains very high, with a slightly longer burn time of 15 minutes. Visitors and residents are strongly advised to take proactive measures, such as wearing protective clothing, applying sunscreen regularly, and seeking shade during peak sun hours, especially during these high-risk months to mitigate the dangers of excessive UV exposure.

Monthly Maximum UV Index for San Carlos Alzatate, Guatemala

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

The table above highlights how UV exposure in San Carlos Alzatate compares to other major locations across Guatemala. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.

San Carlos Alzatate's solar exposure compared to other cities in Guatemala. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Petapa UVI	11	13	14	15	14	14	14	14	14	13	10	10
Villa Nueva UVI	11	13	14	15	14	14	14	14	14	13	10	10
San Carlos Alzatate	11	13	15	15	14	14	14	14	14	13	10	10
Mixco UVI	11	13	15	15	14	14	14	14	14	13	11	10
Guatemala City UVI	11	13	15	15	14	14	14	14	14	13	11	10
San Juan Sacatepequez UVI	11	13	15	15	14	14	15	14	14	13	11	10