UV Index in Chisec, Guatemala

Last updated: August 1, 2025

Understanding the UV Index is essential for residents and visitors in Chisec, Guatemala, where the sun shines fiercely throughout the year. With a tropical climate characterized by high temperatures and significant UV exposure, knowing the UV levels can be a game-changer for sunburn prevention and overall skin health. During peak hours, particularly between 10 AM and 1 PM, the UV Index can soar to a staggering 14, indicating an extremely high risk of harm from unprotected sun exposure. By staying informed about UV levels, you can take proactive steps to protect yourself and enjoy the beautiful outdoors safely.

Hourly UV Index in Chisec

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	3	moderate	30 min
09:00	6	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	6	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 Chisec

The UV Index experiences significant seasonal variation, peaking in the spring and summer months. January starts with a UV Index of 10 (very high), which increases sharply to 12 in February and reaches an extreme 14 by March. The highest levels occur from April to September, maintaining an extreme 14 throughout, with the UV Index only dipping slightly to 13 in September. October also remains in the extreme category at 12, before dropping back to very high levels of 10 in November and 9 in December. Given these values, the high-risk months for sun exposure are from March to October, and it is crucial for visitors and residents to take proactive measures during these times—limiting sun exposure to no more than 10 minutes during peak hours, wearing protective clothing, and applying broad-spectrum sunscreen to avoid harmful UV effects.

Monthly Maximum UV Index for Chisec, Guatemala

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

The table above highlights how UV exposure in Chisec 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.

Chisec'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
Chisec	10	12	14	15	14	14	14	14	13	12	10	9
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
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