UV Index in Joyabaj, Guatemala

Last updated: July 2, 2025

Understanding the UV Index in Joyabaj, Guatemala is crucial for safeguarding your skin and overall health. With high UV levels peaking at a staggering 15 around noon, awareness of these values can help you take proactive measures against sunburn and long-term skin damage. Joyabaj features a temperate climate characterized by its unique Cwb classification, yet its elevation and sunny days expose residents to significant UV radiation risks. By staying informed about the UV Index, you can enjoy the beauty of Joyabaj while protecting yourself from the sun's harmful effects.

Hourly UV Index in Joyabaj

The UV Index for the day reveals a dramatic peak in solar intensity. Starting early, the day begins with a mild UV Index of 1 at 7:00 AM, gradually rising to a moderate 4 by 8:00 AM. As the sun ascends, 9:00 AM ushers in a surge to 7, but the real intensity hits at 10:00 AM, soaring to a critical 11. This trend continues, peaking at an impressive 15 by noon, a time when sun protection becomes essential. The afternoon sees the index slightly decline, with values of 14 at 1:00 PM and 11 at 2:00 PM, before tapering off to 7 at 3:00 PM. As the sun begins its descent, the index falls to 4 by 4:00 PM and diminishes further to 1 by 7:00 PM, ultimately dropping to a safe 0 after 8:00 PM. Stay vigilant during peak hours to enjoy the sun safely!

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	11	extreme	10 min
11:00	13	extreme	10 min
12:00	15	extreme	10 min
13:00	14	extreme	10 min
14:00	11	extreme	10 min
15:00	7	high	25 min
16:00	4	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 Joyabaj

The UV Index exhibits significant seasonal variations, with peak values occurring from February through July, where it consistently reaches an extreme level of 13-15. This indicates that the months of March, April, July, and May are particularly high-risk for UV exposure, with a burn time of just 10 minutes. As residents and visitors plan outdoor activities, it is crucial to exercise extra caution during these months by using sunscreen, wearing protective clothing, and seeking shade whenever possible. Even in the fall and winter months, UV levels remain very high, so maintaining sun safety practices year-round is advisable.

Monthly Maximum UV Index for Joyabaj, Guatemala

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

The table above highlights how UV exposure in Joyabaj 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.

Joyabaj'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
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
Joyabaj	11	13	15	15	14	14	15	14	14	13	11	10